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• Unique model series featuring superlative design and technology
• Power boosted by up to 20 kW
• New and powerful V8 models: CLK 500 and CLK 55 AMG
• Larger body with even more space and comfort for occupants
• Windowbags, belt tensioners and belt force limiters for all seats
• More extensive standard equipment package improves value
• Choice of luxury high-tech systems for the first time

The all new stylistically scintillating and technically sophisticated Mercedes-Benz CLK-Class, which goes on sale in Australia later this month, will continue the company’s long Coupé tradition and significantly grow Mercedes Coupé sales in Australia.

The attractive two-door model celebrated its Australian premiere in May at Mercedes Australian Fashion Week. The CLK 320 and CLK 500 models go on sale at authorised Mercedes-Benz dealerships on June 28, 2002. The CLK 55 AMG and CLK 240 will join the model series in late 2002.

"The introduction of the attractive and elegant new CLK Coupé will ensure we continue the growth of luxury Mercedes Coupé sales in Australia," said Mr Matthias Lührs, Managing Director of Mercedes-Benz Passenger Cars.

"Thanks to the CLK’s appealing design, more powerful engines, refined luxury, higher level of standard equipment and increased production supply, we predict customer demand for Mercedes Coupé ’s to increase, resulting in a doubling of CLK Coupé sales volume during the vehicle’s life-cycle," said Mr Lührs

The new CLK Coupé is a unique model series within the Mercedes-Benz passenger car portfolio. A fact emphasised by a two-door design - newly developed right down to the finest detail - which exudes both elegance and dynamic progression. Prominent styling elements - such as frameless, fully-lowering side windows that form a continuous band, a classic Mercedes radiator grille with central three-pointed star, the new reinterpretation of the twin-headlamp face and the sweeping curve of the Coupé roof - highlight the confident character of the new CLK-Class.

Four engines with power outputs ranging from 125 kW to 270 kW

Complete with its newly developed chassis, more powerful engines and the ultimate in Mercedes-Benz equipment and technology, the new Mercedes Coupé serves up a driving experience that is unique in this vehicle class. Mercedes customers in Australia can choose from four engines, two design and trim lines and numerous attractive colour combinations. Three of the four engines on offer are new developments or further improved models, providing up to 20 kW more power and 15 percent more torque than their predecessors.

Topping the new CLK range are two V8 models that deliver performance on par with a typical sports car: the CLK 500 (225 kW) and the CLK 55 AMG with a further developed powerplant that now produces an impressive 270 kW. The high-power engines propel these CLK Coupé models from 0 to 100 km/h in just 6.0 or 5.2 seconds respectively.

Two powerful six-cylinder models with 2.6 and 3.2-litre displacement

Mercedes-Benz has extended the six-cylinder line-up for the new CLK-Class by adding the tried-and-tested 2.6-litre V6 engine, which develops 125 kW and provides a maximum torque of 240 Newtonmetres at 4500 rpm.

The CLK 320 remains unchanged in the line-up. And with good reason: the powerful V6 powerplant (160 kW), is particularly well-suited to the new Mercedes Coupé, since it delivers equally impressive performance during either sporty driving with high power output or more serene and relaxed driving at lower engine speeds. With 310 Newtonmetres of torque on tap from just 3000 rpm, the six-cylinder engine offers the very best of both worlds.

Increased body rigidity, leading cd figure and exemplary safety

The Mercedes engineers have made further advances in the field of body technology, particularly with respect to safety and aerodynamics. Torsional stiffness has been improved by 40 percent whilst the percentage of high-strength steel alloys used for the bodyshell – to create a lightweight yet extremely strong design – has almost doubled. A Cd figure of just 0.28 makes the new CLK Coupé the new leader in this vehicle class. In addition, substantially reduced body lift on the front and rear axles means the new model has what it takes to provide an extremely high level of active safety and directional stability.

Standard equipment in the new Mercedes Coupé includes a range of state-of-the-art occupant protection systems: adaptive front airbags, sidebags and windowbags as well as belt tensioners and belt force limiters for all seats. For the first time, passenger weight is one of the factors taken into account before the two-stage front-passenger airbag is deployed, to ensure an optimum level of protection every time. The CLK-Class therefore displays the practical features of the Mercedes safety concept and, at the same time, meets the strict requirements of the latest crash tests.

Compared to its predecessor, the new CLK Coupé is 71 mm longer, 18 mm wider and 42 mm higher. The wheelbase has been extended by 25 mm and now stands at 2715 mm. These enhanced dimensions afford the occupants even more space and comfort: in terms of the space between seats, headroom, rear knee room, elbow room and shoulder room, the interior of the new CLK-Class has really grown in stature.

Interior featuring sublime forms, the finest materials and exclusivity in abundance

Smooth forms, high-grade materials, attractive colours and a design displaying superb attention to detail combine to create an interior ambience that arouses an immediate feeling of contentment. New interior developments such as the instrument panel, centre console, door panelling and seats further emphasise the unique character of the CLK-Class. All the controls are within easy reach whilst the main dial instruments – speedometer, rev counter and clock – feature a classic round design and deliver crystal-clear information. Exquisite details such as the chrome surrounds on the dial instruments, the generous fine-wood or aluminium trim on the centre console and leather upholstery enhance the high-quality feel of the interior. There is also a range of automatic systems, to help relieve driver stress and ensure optimum ease of use.

In the rear of the Coupé, the asymmetrically split-folding seat backrests and cushions – fitted as standard – fold forward individually or together, enabling variation of the luggage space. The rear loading area is virtually flat when the seats are folded down.

Standard equipment for an exceptionally high level of safety and comfort

The standard equipment package for the new CLK-Class is even more extensive than that for the previous model. Alongside windowbags, automatic belt feeders, power-operated rear windows, Headlamp Assist, rain sensor, mixed-profile tyres and an adjustable steering column, the package also includes a highly effective automatic climate control system. This system works based on up-to-the-second information it receives from sensors regarding inside temperature, outside temperature and humidity. Options include the added luxury of the THERMOTRONIC system with additional solar sensor, pollutant sensor, rear blower and activated charcoal filter. This system is fitted as standard in the CLK 500 and CLK 55 AMG models with V8 engine.

Debut for DISTRONIC and other innovations in this vehicle class

Another first for the CLK-Class is a range of options which includes some of the best leading-edge, high-tech systems Mercedes has to offer: DISTRONIC autonomous intelligent cruise control, KEYLESS-GO access and drive authorisation system, bi-xenon headlamps and LINGUATRONIC voice-operated control for telephone and car radio.

To enable individualisation of the CLK Coupé, Mercedes-Benz has developed two lines: ELEGANCE and AVANTGARDE. Each makes a different statement through its unique design and equipment features.

Recommended retail prices for the new (C 209) Mercedes-Benz CLK-Class

CLK 240	$89,900
CLK 320	$114,900
CLK 500	$139,900
CLK 55 AMG	$189,900

Model concept and equipment: exquisite in every sense

Second generation of successful Coupé model series

• High exclusivity thanks to exquisite design and leading-edge technology
• Two design and trim lines incorporating individual design features
• DISTRONIC and other high-tech systems among the optional extras
• High-performance CLK 55 AMG Coupé developing 270 kW

Attention very much focussed on one particular event in June 1997, for this was the month in which Mercedes-Benz unveiled its all-new Coupé model series: the CLK-Class.

Sporty and elegant, innovative and stylistically scintillating, the two-door CLK proved an instant hit with motorists of both sexes. In the first full year of production alone, some 54,000 CLK models rolled off the assembly lines. Just 18 months later, the figure had risen to 135,000. And today the total stands at over 230,000, far beyond experts' expectations. The Coupé became a major success story within the strategic product initiative launched by Mercedes-Benz, making its mark on the brand's new, dynamic image in much the same way as the SLK and A-Class did. Around 40 percent of the buyers are new Mercedes customers. And, in Europe, some 35 percent of all newly registered cars in this Coupé segment proudly display the Mercedes three-pointed star.

In Australia, the sales success of the Mercedes-Benz CLK Coupé has contributed to the brand’s new, dynamic image. Since October 1997, over 2,300 buyers have opted for the CLK Coupé , representing an annual average of over 500 units. The second chapter of this success story is about to unfold: the new CLK-Class is ready to impress. Another Mercedes model for those who like to live their dreams. A Coupé for those who crave that little bit more -- stylish, elegant, progressive, attractive and of pristine quality in every respect. Of strong, impeccable character and displaying a host of new stylistic and technical features, the new model even outshines its predecessor when it comes to exclusivity, comfort and dynamism.

Larger body, more powerful engines and leading-edge technology

To put it another way, the CLK Coupé has grown in stature, matured even further and become even better. A comparison with the predecessor model reveals that the newcomer's body is 71 mm longer and 42 mm higher. Its interior now provides even greater comfort and space whilst its engines deliver up to 20 kW more power and as much as 15 percent more torque. What is more, it is backed by a range of technical equipment that includes the very latest Assist systems, previously the sole reserve of luxury-class models. Mercedes-Benz is the only manufacturer to offer such exclusive systems in this Coupé segment, systems that make motoring even safer and even more enjoyable.

With its pronounced wedge shape, powerful and tight waistline and sweeping roof silhouette, the CLK is clearly sports-oriented in its design, yet it also exudes the sheer elegance of the coupé concept. Alongside the new interpretation of Mercedes' classic twin-headlamp face, the most prominent design feature on the new CLK-Class is the continuous band formed by the frameless, fully-lowering side windows, achieved thanks to the absence of the upper B-pillars.

Even more extensive standard equipment package

Furthermore the new Mercedes Coupé comes with an even more valuable standard equipment package than its predecessor, primarily satisfying a desire for maximum exclusivity, supreme safety and superlative comfort. The new standard equipment available over and above that which came with the predecessor model, includes the following items:

• Adaptive drive system (petrol engines), driving dynamics tailored to driver requirements
• Power-operated rear windows
• Headlamp Assist
• System for measuring front passenger weight – a criterion for airbag deployment – to ensure an optimum level of protection every time
• Belt feeders for driver and front passenger
• Belt tensioners and belt force limiters for rear seats
• Steering wheel with adjustable height and reach
• THERMATIC automatic climate control with rear blower
• Rain sensor for windscreen wipers
• Windowbags

Selected items from the comprehensive package of standard equipment for the CLK-Class at a glance:

• Adaptive front airbags
• Active Service System (ASSYST)
• Anti-lock Braking System (ABS)
• Armrest with height adjustment
• Two-part stowage compartment between the front seats
• Heated and electrically adjustable exterior mirrors
• Five-speed automatic transmission
• Outside temperature display
• Entrance lights
• Automatic rear seat belts
• Automatic child seat recognition
• Audio 10 CC car radio (CLK 240)
• Front passenger recognition and weight classification
• Brake Assist
• CD changer in glove compartment
• Cup holder (optional)
• COMAND (CLK 320, CLK 500 & CLK 55 AMG)
• Car phone pre installation with phone aerial
• Rev counter
• Easy-Entry system
• ESP®
• Headlamp Assist
• Four power-operated windows
• Remote boot-lid release
• Two pneumatically-folding rear head restraints
• Rear ventilation
• Asymmetrically split-folding rear seats
• Belt feeders for driver and front passenger
• Belt tensioners and belt force limiters for all seats
• Automatic climate control
• Leather upholstery
• Leather steering wheel with adjustable height and reach
• Leather shift lever
• Light-alloy wheels
• ELEGANCE and AVANTGARDE lines
• Multifunction steering wheel
• Front fog lamps
• Pollen and dust filter
• Radio antenna integrated in the rear window
• Rain sensor
• Trip computer
• ELCODE locking system
• Side indicators in the exterior mirrors
• Power steering
• Sidebags in the doors
• SPEEDTRONIC with cruise control
• Windscreen wipers with one-touch control
• Green or blue tinted glass
• Windowbags
• Central display in instrument cluster
• Central locking
• Fine-wood or aluminium trim

The new top-of-the-range CLK 500 – complete with its powerful V8 engine which pushes it into the realms inhabited by thoroughbred sports cars like the Mercedes SL 500 Roadster or the flagship CL 500 Coupé – has an impressive list of equipment. Additional items fitted as standard include THERMOTRONIC luxury automatic climate control, COMAND, electrically adjustable seats (including memory function), parameter steering and17-inch light-alloy wheels (225/45 R 17 for the front and 245/40 R 17 for the rear).

ELEGANCE and AVANTGARDE: individual through and through

Mercedes customers are sure to appreciate the vast range of individualisation options: two individual design and trim lines – part of the standard package – as well as four engines, 13 exterior paint finishes and four interior colours. As before, the lines have been christened ELEGANCE and AVANTGARDE; however, they now incorporate the following new features:

ELEGANCE	AVANTGARDE
Light-alloy wheels with 7-spoke design	Light-alloy wheels with 5-spoke design
Radiator grille in atlas grey with Decorative chrome trim strips	Radiator grille in black with decorative chrome trim strips
Green tinted glass	Blue tinted glass
Choice of four interior colours	Choice of two interior colours and three colour combinations
"brown ash" fine-wood trim with decorative chrome strips	"ellypta" aluminium trim with decorative chrome strips

High-tech from luxury-class models now available for the CLK Coupé

Optional extras that are as valuable as they are innovative provide superb scope for Coupé individualisation. Many of these systems – such as DISTRONIC autonomous intelligent cruise control or the KEYLESS-GO access and drive authorisation system – have been lifted from the Mercedes-Benz S-Class or CL-Class and are available in the CLK-Class for the very first time. The following are just some of the options available:

• DISTRONIC autonomous intelligent cruise control
• AMG design package
• AMG 18-inch light-alloy wheels
• Right exterior mirror and interior mirror with automatic dimming function
• Bi-xenon headlamps (standard in CLK 55 AMG)
• Bose sound system
• COMAND with navigation system (standard in CLK 320, CLK 500, CLK 55 AMG)
• Fine-wood trim in brown burr walnut (for ELEGANCE line)
• Anti-theft alarm system
• Rear sun-blind
• KEYLESS-GO
• THERMOTRONIC luxury automatic climate control (standard in CLK 500)
• Steering wheel trimmed with leather and fine wood (for ELEGANCE)
• LINGUATRONIC
• Multicontour front seats (available 4th quarter 2002)
• Parameter steering (standard in CLK 500)
• PARKTRONIC
• Glass tilting/sliding roof (standard in CLK 55 AMG)
• Rear sidebags
• Electrically adjustable seats and steering wheel with memory function (standard in CLK 320 and CLK 500)
• Lowered sports suspension
• TV receiver (in conjunction with COMAND)

New CLK 55 AMG with 270 kW powerplant beneath the bonnet

In keeping with many of the other Mercedes model series, the new CLK-Class will also be able to bear the three-letter mark of sporting prowess: AMG. The package promises superlative power delivery and outstanding handling as well as a list of equipment that positively exudes exclusivity.

The high-performance CLK 55 AMG Coupé will lead by example with its V8 powerplant that has been further improved by Mercedes-AMG. Developing 270 kW, the engine propels the two-door model from 0 to 100 km/h in a mere 5.2 seconds. Further features that make the flagship CLK-Class sports model really stand out include special AMG bodystyling for the front apron, rear apron and side skirts. Not to mention the 18-inch AMG light-alloy wheels, the AMG exhaust system with twin tailpipes and the specially developed spoiler lip on the boot lid, which reduces the lift acting on the rear axle by over 50 percent. Moving inside, a host of features – classic AMG aluminium trim with high-sheen chrome strips, two-tone nappa and nubuk leather appointments, AMG sports seats and an instrument cluster sporting white dials and an aluminium look – all combine to create a supremely sporty and elegant ambience. Another new feature is the ergonomically designed sports steering wheel with integrated paddle-type switches for operating the five-speed automatic transmission in manual mode. The following are just some of the extra items in the new CLK 55 AMG, over and above the items that come with the CLK 500 AVANTGARDE:

• AMG light-alloy wheels (18-inch) with twin-spoke design
• Exhaust system with twin tailpipes
• AMG decorative aluminium trim with high-sheen chrome strips
• AMG bodystyling
• AMG steering wheel gearshift with manual transmission mode
• AMG SPEEDSHIFT automatic transmission
• AMG sports suspension
• AMG sports seats featuring unique-look design
• Bi-xenon headlamps
• Doorsills featuring AMG design
• Ergonomically designed sports steering wheel with integrated gearshift paddle switches
• Glass tilting/sliding roof
• High-performance brakes with perforated front discs
• Instrument cluster with 320-km/h speedometer dial
• Two-tone leather appointments featuring nappa-nubuk combination
• Multicontour seats
• Rear sidebags
• Seat heating

Design: in a class of its own

• Newly developed design for a strong, unique character
• Exciting interplay between straight lines and smooth forms
• Side windows form a continuous band in the absence of upper B-pillars
• Interior displaying exquisitely elegant and high-quality details
• Trim featuring a new and exclusive combination of materials
• Numerous colour combinations for individualisation

Sporting emotive lines, equipped to an exceptionally high standard and incorporating leading-edge technology, Mercedes-Benz Coupé models have always been that little bit extra-special. They are cars that simply ooze passion and excitement; objects of sheer desire.

The new CLK-Class follows in the tracks of previous Coupé models; however, its markedly unique style gives it a special place in what is a long and illustrious model history.

The two-door newcomer delivers a clear message: gone are the days when a Coupé was little more than a derivative of an existing saloon, when developers interpreted the term "coupé" all too literally and simply chopped off the rear end.

The new CLK-Class is a unique model series and, as such, features an entirely new interior and exterior design. All of which emphasises the exclusive character of the new Mercedes model, establishing a clear distinction between itself and other coupés in this vehicle class.

Many of the traits at the heart of the new Coupé – notably its unique character, confidence and excellence – are immediately apparent and can be felt as soon as the doors are opened. They help bring a totally new, unmistakable style to the automotive experience, creating a new "drivestyle".

Front end with new yet familiar distinguishing features

One of the main features of this unique style is the front end. Inspiration was drawn from the Mercedes-Benz CL-Class – the elder brother of the CLK Coupé – and the SL Roadster, both of which acted as templates for the classic Coupé radiator grille with distinctive vanes and a large, central Mercedes star. In this position, the three-pointed emblem has become the mark of all sporty models produced by the Stuttgart manufacturer. A discreet chrome trim enhances the appearance of the four vanes which, depending on the line, are finished in high-sheen black (AVANTGARDE) or atlas grey (ELEGANCE).

The new yet familiar twin-headlamp face of the CLK-Class is a stunning achievement, comprising two ellipses which merge effortlessly to form a single headlamp unit. This impression is maintained until the "eyes" light up and it becomes clear that there are actually four separate lighting systems concealed beneath the lenses: main beam, dipped beam, parking lights and indicators. A sophisticated clear-glass look adds to the appeal of these headlamps and affords a deep insight into the supremely styled inner workings – high-tech design in an extremely attractive form.

As a prominent design feature, the headlamp ellipses largely set the formal tone at the front end: the bonnet and the front wings follow the rounded contours of the headlamps and continue these rearwards along the body. The muscular, tapering domes of the front wings evoke the image of a superbly-conditioned athlete and are symbolic of the sheer power that lies within. The appearance is sleek and athletic, an impressive blend of tight lines and soft, naturally rounded surfaces.

Sweeping Coupé roof on powerful, muscular shoulders

The A-pillars pick up on the dynamic interplay between the front wings and the bonnet, extending it into the sweeping Coupé roof which gives a surprising impression of lightness by virtue of its flush, slim pillars. This almost gives the impression that the Coupé roof is floating. However, the filigree roof structure is well supported: the continuous waistline extends from the vehicle front to the tail lights with a pronounced, taut curve, the precise lines creating superb definition. Thus the side design also evokes anatomical images: the Coupé waistline is reminiscent of a strong, tensed muscle.

The roof line flows effortlessly into an elegant C-pillar configuration, sloping gently downwards towards the Coupé rear, rounding off the side view in harmonious style: the rear light clusters, drawn deep into the vehicle flanks, pick up the side lines and draw them smoothly downwards. At the same time, the sweeping parallel lines of the bumper, boot lid and rear windscreen produce an unusually rounded and sculpted appearance. In a gentle curve, the highly aerodynamic spoiler lip on the boot lid joins the rear lamp clusters which, in turn, appear in a new and totally unique light.

Attractive insight afforded by fully-lowering, frameless side windows

There is little doubting that the CLK-Class is at its best when viewed from the side. Especially when the side windows are rolled down to give a perfect view of the Coupé interior. What is more, there are no window frames or upper B-pillars to obscure the view, just one continuous opening. This is the feature that perhaps best captures the appeal of the Coupé, accentuating the manner in which the exterior seems to merge effortlessly into the interior.

When the side windows are down, the eyes are naturally drawn to the elegantly formed dashboard. Here the visual link with the dynamic exterior is immediately apparent: once more, a combination of straight lines and smoothly rounded contours conveys lightness, dynamism and elegance.

The sporty, round air outlets in the dashboard also form a perfect link with the exterior design. Echoing the front-headlamp concept, the contours of the air outlets are extended rearwards and also take in the perforated indirect ventilation outlet. In addition, the circular air outlets for the rear passengers – located at the tail-end of the centre console and armrest – mirror the design of the outlets in the dashboard, proving that even the smallest of details contributes to the overall design concept.

Interior design displaying superb attention to detail

As one would expect, many other features also highlight a meticulous attention to detail on the part of the Mercedes designers. By way of example, the extended ellipsoid trim strip on the glove compartment lid illustrates form and function in perfect harmony: its shape emphasises the width of the dashboard whilst the perfectly integrated chrome strip accentuates the elegant character of the CLK Coupé. Even the simplest of functions – such as the button for opening the glove compartment – are elegantly incorporated with an unwavering attention to detail.

A further detail discreetly yet effectively enhances the visual impact of the CLK interior: a slender, chrome strip defines the lower edge of the long and exquisitely formed trim – in fine wood (ELEGANCE) or aluminium (AVANTGARDE) – which extends along the length of the door panel. This is the first time that the Mercedes designers have combined wood and chrome or aluminium and chrome in this elegant manner -- the result of a new and complex process.

Precise design and ergonomic features

The completely new-look dashboard has several horizontal divisions; the upper section provides a visual contrast by virtue of its shape and a prominent overhang. This is accentuated by a colour contrast if a light interior colour is chosen. Moving downwards, the centre dome and centre console merge to form a sweeping S-shape, a further eye-catching feature in the CLK interior. This same dynamism is apparent in the interior panels on the wide Coupé doors. The door centre panels also get the full treatment: the elegant and sophisticated ruffled-leather lining is a mark of true craftsmanship.

Those lucky enough to sit behind the sporty four-spoke wheel will instantly notice another quality of the new CLK-Class: superb ergonomic design -- or, to put it another way, precision in every respect. And all the controls are within easy reach. Furthermore, the main instrument dials – speedometer, rev counter and clock – feature a classic round design and provide crystal-clear information. Refined details like the chrome surrounds on the dials and the generous fine-wood or aluminium trim which adorns the centre console enhance the high-quality feel of the CLK interior. In other words, the perfect blend of ergonomics and design, for a feel-good factor that makes motoring an even more pleasurable experience.

Fully personalised colour schemes

In keeping with the Mercedes "maximum individuality" philosophy, the new CLK-Class offers a whole host of personalisation options:

• A choice of four colour shades of high-quality leather upholstery is standard in the ELEGANCE interior: anthracite, pebble beige, alpaca grey and pacific blue. This line comes with "ash brown" fine-wood trim combined with elegant chrome.
• Five interior colours options of high-quality leather upholstery for the AVANTGARDE line are available: anthracite, alpaca greay/alpaca drak grey, anthracite/alpaca dark grey, anthracite/berry red and anthracite/dark blue. The trim is in "ellypta" aluminium combined with high-sheen chrome.

There is also a choice of 13 colour shades for the CLK exterior, two of which are exclusive to the new Mercedes Coupé. The following chart highlights the wide range of available colours and combinations:

Further exclusive colours, materials and appointments are available as part of the designo range.

Colours that can be specified to individualise the CLK 55 AMG interior include anthracite, merlot red and dark blue. Standard two-tone leather appointments in the flagship sports version are a unique combination of the finest leather grades, namely nubuk leather for the interior door panels and perforated seat cushions – available in three colour shades: anthracite, merlot red and dark blue – and nappa leather in anthracite for all other leather appointments. Further unique touches are provided by the aluminium trim, the leather steering wheel and the instrument cluster, all of which feature a special AMG design.

Body and safety: extremely sound foundations

• Bodyshell torsional stiffness increased by 40 percent
• Percentage of high-strength steel alloys used almost doubled
• Easy repairs thanks to modular concept for front and rear end
• Large deformation zones on three levels for superb occupant protection
• Optimum front airbag deployment depending on bodyweight
• Large windowbags and sidebags as standard
• World-record c_d figure in this vehicle class

Developing a Coupé has long been one of the most exciting challenges for automotive engineers. What makes this particular species of car so appealing is its unique blend of sportiness and elegance, especially if it is a Coupé displaying the Mercedes star and containing a unique combination of technical and stylistic features. In short, the new Mercedes-Benz CLK-Class.

The body and safety experts at the Mercedes Technology Centre (MTC) in Sindelfingen played a major part in creating what is one of the most prominent and beautiful design features of the new two-door model: the elegant side lines and the continuous strip formed by the side windows and slender, filigree roof pillars are the result of a series of complex production processes. What is more, the Coupé still fulfils the most stringent of test requirements with respect to torsional stiffness and occupant protection, even in the absence of full-size B-pillars. In concrete terms:

• The single-piece sidewall panelling on the new CLK-Class has individually welded inner shells which provide strong, stiff cross-sections for the roof pillars, the roof frame and the side longitudinal members.

• The A-pillars contain high-strength steel tubing which is capable of withstanding even the extreme impacts experienced in the roof-drop test.

• The (non-visible) B-pillar stumps also contain welded high-strength tubing. Together with numerous other reinforcements, this tubing provides effective protection in the event of a lateral collision. In addition, the area below the dashboard contains a solid square section which is bolted to both the A-pillars.

• The doors consist of one inner and one outer shell, made of sheet steel with integrated reinforcement sections. Other integrated safety components include a flexible tubular member in the lower section, which reduces deformation in the event of a side impact. Mercedes-Benz used high-grade materials to develop separate panels for mounting the door hinges, to further enhance impact resistance in these areas.

• 40 percent of the bodyshell consists of high-strength steel alloys – as against 22 percent in the preceding series – designed to minimise weight and maximise stability and safety.

A three-section floor assembly forms the robust spine of the bodyshell. The floor panels were custom-made using the "tailored blanks" method, laser-welded together and then shaped according to requirements -- a sophisticated process that enables the use of tailored blanks of varying thickness and, therefore, also takes into account factors such as lightweight design and safety. The middle panel is the thickest of all and is used to shape the transmission tunnel which the Mercedes engineers further reinforce with additional panels. Crossmembers and diagonal members on both sides of the tunnel ensure renowned Mercedes rigidity; in the event of a frontal or side impact, these members absorb the impact and channel the force away from the passenger compartment so that the latter is stabilised.

Easily replaceable front and rear modules with integrated impact protection

The front and rear sections of the new CLK-Class also differ significantly from those used for the preceding series. As they did for the S-Class, SL-Class and E-Class, the Sindelfingen engineers have developed special modules which absorb crash energy at impact speeds of up to 15 km/h, thus ensuring that the supporting structures behind remain undamaged. Bolted connections make the front and rear modules cheap and easy to replace, eliminating the need for straightening, welding and repainting.

• The front module consists of a series of components that are bolted together. At its core are two steel crash boxes and an extruded aluminium crossmember. In addition, there are two brackets for mounting the radiator and, on both sides, multi-section steel frames for mounting the headlamps in the front module.

• The rear module also consists of two steel crash boxes and an extruded aluminium crossmember. The crash boxes are capable of absorbing crash energy at impact speeds of up to 15 km/h.

For mounting the front axle, steering system and engine, the Mercedes engineers also employ a sophisticated modular concept that has already proven successful in other model series made by the Stuttgart manufacturer: in place of the welded-in front axle carrier, the new CLK is fitted with what is known as an integral support which is bolted to the front side members and absorbs some of the crash energy in the event of a frontal impact. The subframe is made of diecast aluminium and weighs around 20 percent less than an equivalent steel component.

Facts and figures: the main dimensions of the new CLK-Class

With an exterior length of 4638 mm, the new Coupé is also unique in terms of its body dimensions, positioned between the C-Class and the E-Class. The CLK-Class is 112 mm longer than the C-Class Saloon and 180 mm shorter than the new Mercedes-Benz E-Class. Compared to the predecessor model, the new CLK Coupé is 71 mm longer, 18 mm wider and 42 mm higher. The wheelbase has been extended by 25 mm and now stands at 2715 mm.

All measurements in millimetes.

Further enhanced body rigidity and safety

The results of these and other innovative measures in the field of body technology are impressive to say the least. The new Mercedes-Benz CLK-Class

• ... has 40 percent higher torsional stiffness than the preceding series – an indication of the car's precise and safe handling.
• ... has a bodyshell that is practically immune (predecessor: 65 percent immune) to corrosion by virtue of its galvanised panels. Around half of the galvanised panels are treated with an organic paint that also contains zinc pigments. Extensive underfloor panelling made of fibreglass-reinforced plastic enables the Mercedes engineers to dispense with conventional, environmentally harmful underfloor protection made from PVC.
• ... is considerably quieter than the preceding series thanks to its highly-effective sound-deadening concept. Critical cavities in the bodyshell are packed with special, noise-insulating foam or fibre materials. There are 22 such "absorbers" in the sidewalls alone.
• ... passes the stringent European and American NCAP safety tests (New Car Assessment Programme) with flying colours, for example the frontal-impact test against a 40% offset, deformable obstacle, the ECE side-impact test or the pole test at 90° to driving direction, not to mention Mercedes in-house safety tests which are equally stringent.

Practical, multi-level occupant protection system

In addition, the new CLK-Class incorporates the pioneering, practical Mercedes safety concept. This concept also takes into account occupant protection in the frequent collisions that occur at mid-range speeds. For instance, in the event of a frontal impact, a three-stage protection system is activated, based on the severity of the collision:

• At impact speeds of up to 4 km/h, the foam elements in the bumper absorb the crash energy, thus ensuring that the panels behind remain undamaged. The plastic bumpers even revert to their original shape after the accident.
• At impact speeds of around 15 km/h, the energy is absorbed within the newly developed front module and its integrated crash boxes made of highly-resistant steel.
• At impact speeds in excess of 15 km/h, the impact forces are channelled into four independent zones:
• 1. Via the aluminium crossmember in the front module, which channels the impact force to the side of the vehicle unaffected by the collision;
• 2. Via the substantially forwards-extended side members (behind the crash boxes);
• 3. Via robust sectional panels above the wheel housings, which provide an additional path for channelling the impact forces;
• 4. Via the front wheels which are supported by special crash elements in front of the side members (doorsills), enabling them to channel the impact forces into the body side structure.

Ellipsoid bulkhead for effective energy absorption during a frontal crash

The front end is connected to the passenger cell by means of an ellipsoid bulkhead comprising several panels of differing thickness. This set-up enables the material to be adapted according to the severity of the impact and represents an ideal compromise between lightweight design and crash safety. The thickness of the high-strength steel varies by up to 150 percent, meaning that the bulkhead is not only capable of withstanding extreme loads, it can also evenly disperse the forces generated by a frontal collision over a wide area. This prevents dangerous intrusions into the passenger cell. Consequently the previously installed front side member extensions are no longer required.

2-stage airbag deployment, based on impact severity and passenger weight

Adaptive front airbags – airbags that adapt according to the type of collision and deploy in two stages depending on the severity of the collision – prove the perfect complement to the practical protection concept in the new CLK-Class:

• Stage 1: in the event of a minor frontal collision, the ECU only fires one chamber of the two-stage airbag gas generators. The airbags are therefore inflated to a lower pressure.
• Stage 2: if the ECU detects a severe frontal collision, it also activates the second chamber of the gas generator after a delay of between 5 and 15 milliseconds. The airbags are thus inflated to a higher pressure, offering the occupants a level of protection in line with the severity of the accident.

Mercedes-Benz has further developed this adaptive airbag technology for the new CLK-Class: when calculating the required degree of airbag deployment, the airbag ECU does not just take the severity of the collision into account, it also considers the front passenger's bodyweight. This means that the protection systems are able to adapt with even more precision in the event of a frontal collision. By way of example, the microcomputer may even fire both generator chambers in the event of a minor collision, depending on the severity of the accident and the passenger's weight, so as to provide a heavy front passenger with the best possible level of protection. Conversely, if the front passenger is very light, the second chamber may only inflate in the case of more severe collisions. The ECU assigns the front passenger to one of four weight categories using data it receives from a special measuring membrane in the seat: 1 to 30 kg; 31 to 50 kg; 51 to 70 kg; over 71 kg. At the same time, the newly developed measuring membrane acts as a seat occupancy sensor and ensures that the passenger airbag, belt tensioner and sidebag are automatically deactivated if the seat is unoccupied.

Windowbags and sidebags for optimum side-impact protection

Fitted as standard, the windowbags are a further example of the real-life safety concept at the heart of the new CLK-Class. They were also developed based on the findings of the latest accident research. During the course of this research, which took into account a wide range of impact angles, scientists established that an airbag in the side wall area needs to be as large as possible to ensure the best possible protection for all occupants, given the wide range of possible impact constellations. The windowbag meets the requirements stipulated by the accident researchers. It consists of several chambers which, in the event of a crash, are drawn like a curtain across the interior area between the front and rear roof pillars, all within the space of 25 milliseconds.

And whilst the windowbag prevents a person's head from colliding with the side window or roof frame, as well as catching glass splinters or other objects that can be propelled into the interior following a crash or subsequent rollover, the sidebags offer additional protection for the thorax area. Alongside adaptive front airbags, windowbags and sidebags, Mercedes-Benz equips the new CLK-Class with the best and most effective occupant protection systems available, including:

	Front seats	Rear seats
Automatic seat belts	x	x
High-performance belt tensioners	x	x
Belt force limiters	x	x
Automatic front passenger recognition with weight classification	x*	--
Automatic belt feeders	x	--
Head restraints, height and Angle adjustable	x	x
Adaptive front airbags	x	--
Sidebags	x	optional**
Windowbags	x	x

x = standard; in front passenger seat; **standard in CLK 55 AMG

The automatic belt feeder is a further piece of practical technology used by the Mercedes engineers. It assists the driver and front passenger when putting on the automatic three-point seat belts. As soon as the occupants are seated, an electric motor extends the plastic rods holding the buckles on both sides of the vehicle so that the belts can be conveniently reached. The belt feeders retract again once the seat belts are fitted.

c_d figure of 0.28 a new aerodynamics record in this vehicle class

As well as providing class-leading body rigidity and occupant safety, the new CLK also points the way ahead when it comes to aerodynamics: a drag coefficient (c_dfigure) of just 0.28 makes the two-door Mercedes the most aerodynamic Coupé in its vehicle class. This important aerodynamic figure is almost seven percent lower than the figure for the preceding model.

This impressive performance is the result of numerous complex solutions jointly developed by engineers and designers in the wind tunnel. Features particularly worthy of mention include:

• ... the aerodynamic form of the front apron which channels the oncoming wind sideways along a pre-defined path so that it can flow over the relatively flat surface of the body without causing significant losses. Combined with the underfloor flow, this results in less lift acting on the front axle.
... the spoiler lip on the boot lid, designed to work in tandem with the rear edge of the roof and the C-pillars, to reduce the lift acting on the rear axle.
• ... the wheel spoilers in front of the front and rear wheels, which reduce the air backpressure in front of the tyres.
• ... the aerodynamic plastic shoulders in front of the front wheel housings, which allow the air to flow over the front suspension links without incurring significant losses.
• ... the large and flat-surfaced underfloor panelling which enables the oncoming wind to flow underneath the body without causing a significant vortex.
• ... the engine compartment encapsulation which channels the oncoming wind rearwards along a pre-defined path and prevents the air forming a vortex in the engine area.
• ... the sealing of the front section using rubber sections which expand due to the effects of backpressure and prevent the oncoming wind from entering the gap.

However, detailed work in the field of aerodynamics did not just focus on improving wind resistance. Three further items, no less important, were also on the agenda: directional stability, dirt deflection and aero-acoustics.

Directional stability: it takes a great deal of experience and expertise to develop a Coupé that is as aerodynamic and directionally stable as it is elegant. And the Mercedes engineers showed that they had both when developing the new CLK-Class: the two-door Coupé delivers exemplary performance figures in terms of the body lift acting on the front and rear axles. Front axle lift is up to 70 percent lower than for the predecessor model whilst rear axle lift has been reduced by around 36 percent.

Major factors behind these impressive advances include the new panelling concept for the underbody, the front and rear wheel spoilers, the discreet spoiler lip on the boot lid and the newly developed shoulders in front of the front wheel housings.

Dirt deflection: the aerodynamics engineers headed to the wind tunnel to develop a range of highly-effective solutions designed to keep the exterior mirrors, side windows and rear windscreen free of dirt, even after prolonged driving in the wet, and to ensure that the driver has a perfect all-round view at all times. For instance, the aluminium channels on the A-pillars act as water deflectors, collecting the rain that falls on the windscreen and deflecting it rearwards over the roof, assisted by the oncoming wind. The water then flows into a drainage channel between the rear edge of the roof and the rear window weatherstrip before draining down onto the ground via side channels. As a result, the rear window of the Coupé remains free of dirt, even at high speeds.

The narrow, inconspicuous channel in the exterior mirror casing also acts as a water deflector. It ensures that rainwater drips off at a very flat angle in relation to the body flank before being blown rearwards by the oncoming wind. The aerodynamic shape of the mirrors and the discreet spoilers on the lower section of the mirror casings enhance this effect.

Aero-acoustics: the low noise levels on board the new Mercedes Coupé are the result of a comprehensive raft of measures: hermetic sealing of the roof trim strips; main door seals with special edge trims; aero-acoustically shaped exterior mirror casings; special, complex-design seals for the 5-mm thick side windows.

New tilting/sliding roof with 34 percent larger opening area

Several of the new developments optionally available in the CLK-Class are sure to provide even greater driving pleasure and further enhanced comfort:

• The electrically-operated glass tilting/sliding roof (optional) can also be opened and closed by remote control. And, thanks to the larger roof area on the new CLK Coupé, the opening angle of the tilting/sliding roof is an impressive 34 percent larger than that of the preceding model.
• To supplement the standard-fitted ELCODE access and drive authorisation system, which has an electronic key with integrated infrared radio remote control, the CLK-Class now has the option of KEYLESS-GO for the first time. Armed with this system, which has already proved successful in top-of-the-range Mercedes-Benz models, the driver does not need a conventional key to get into the car. Simply touching one of the door handles or the boot lid handle suffices. The rest of the work is performed by an induction-type antenna system which exchanges door-opening identification codes with the chip card at lightning speed. KEYLESS-GO also makes starting the engine easier: touching a button on the five-speed automatic selector lever is all it takes to start the vehicle, once the chip card and immobiliser have exchanged codes.

Twin headlamps with the option of halogen or bi-xenon technology

The new CLK-Class features a new reinterpretation of the twin-headlamp face, proving once again that this classic Mercedes design feature has lost none of its appeal. Displaying a sophisticated clear-glass look, the plastic lenses conceal some of the finest headlamp technology available: a two-chamber reflector that combines four lighting functions. The outer chamber contains dipped beam and, above this, the indicator, whilst the inner chamber is for main beam and the parking light. Switching on main beam in addition to dipped beam ensures wide-ranging illumination of the road ahead. The fog lamps, located in the front bumper covering, are positioned to provide optimum illumination in foggy conditions. Mercedes-Benz fits H 7 bulbs as standard for main and dipped beam.

The list of options includes even more powerful bi-xenon headlights, a technology lifted from the top-of-the-range S-Class, SL-Class and CL-Class models. Xenon headlamps are gas discharge lamps filled with the gas of the same name. Bi-xenon means that each xenon lamp is capable of providing both dipped beam and main beam. And whilst the entire luminous flux is available when main beam is on, switching to dipped beam causes a shutter to move between the lamp and the refractive optics, covering part of the pencil of light. One of the major benefits of xenon technology is its high light output: even at 35 watts, gas discharge lamps generate a luminous flux that is twice as intense as that provided by conventional H 7 headlamps.

Dynamic headlamp range adjusters, which adjust the inclination of the beam of light in line with the current position of the body and balance out brief periods of pitch during braking or acceleration, are also part of the bi-xenon package, as is a wash/wipe system with high-pressure water jet.

The exterior mirror casings with integrated LEDs have become a regular feature on many new Mercedes models. And the new CLK-Class also benefits from this technology. Turn signals are therefore clearly visible to other road-users, both from the front and from the side.

Elegant taillights and fast-acting LEDs in the boot lid

In a similar vein to the twin headlamps at the front, the taillights are an important styling feature at the rear of the Coupé. Sporting a design that is both dynamic and elegant, they are drawn deeply into the vehicle flanks, their powerfully sweeping lines enabling clear divisions between the individual lights: brake lamp (top), taillight (bottom), reflector (bottom), rear fog lamp (bottom, on the left-hand side of the vehicle) and indicator (middle).

The third brake lamp, which takes up a slightly more elevated position in the middle of the spoiler lip, is electrically connected to the brake lamps in the rear light clusters. The LEDs in the third brake lamp light up around 50 milliseconds faster than conventional bulbs. This means that the LEDs play an important part in preventing rear-end collisions.

Additional safety is provided by two reversing lights housed behind the clear-glass areas in the rear light clusters.

Windscreen-mounted light sensor fitted as standard

Electronic control units networked via CAN databus (Controller Area Network) enable additional safety and comfort-enhancing functions to be created. A prime example of this is Headlamp Assist: a windscreen-mounted light sensor detects when dusk falls or when the Coupé enters a tunnel and, in such an instance, turns on the car's exterior lights automatically. This convenient function is also activated when it rains or snows. Only if conditions are foggy do the lights have to be switched on manually in the conventional manner. Headlamp Assist is activated using a light switch on the dashboard ("Auto" position).

The auxiliary lighting circuit is automatically activated if a bulb relevant to safety fails. This system, which switches on different lights instead, is just one example of the extensive and sophisticated lighting technology at work in the new CLK-Class. Using the buttons integrated in the multifunction steering wheel, the driver can also program the lighting system so that dipped beam, parking lights, taillights and licence plate lights always come on automatically when the engine is started. Depending on the individual settings, the front headlamps can remain switched on for up to a minute after the occupants leave the vehicle, to assist them in the dark.

Two-arm windscreen wipers with highly-effective aero wiper blades

To replace the single-arm windscreen wipers that were a feature of the predecessor model, the Mercedes engineers have equipped the new CLK Coupé with an even more highly effective two-arm wiper system with special kinematics. Whilst the wiper on the driver's side has a fixed axis of rotation, its passenger-side counterpart performs an eccentric sweep so as to enable wiping of an even larger windscreen area. The wiper blades are a new feature and were developed in a wind tunnel, hence the term "aero wipers". This effectively means that, instead of the jointed clipping-in system used for conventional wiper blades – which involves inserting the wiper rubber into a series of claws on the blade – the aero wiper consists of a single-piece rubber section with integrated spoiler and externally positioned spring runners. These runners precisely follow the curvature of the windscreen, thus ensuring optimum contact between the wiper and screen at all times and improving the wiping quality, particularly at higher speeds.

Interior and electronics: in perfect order

• Sporty and elegant interior ambience with exemplary ergonomic design
• More space and enhanced comfort for every seat
• Sensor controlled Assist systems to relieve driver stress
• High-quality dashboard featuring unique design
• New-look cockpit with clearly laid-out circular dials
• Newly developed Coupé seats with optional multicontour function
• Automatic climate control as standard
• Optional DISTRONIC autonomous intelligent cruise control

Aesthetics and ergonomic design are major aims whenever Mercedes-Benz designs and develops a car interior. And the new CLK-Class offers further proof that the Sindelfingen designers and engineers are masters of both disciplines.

The design team has created a beautiful interior of the very highest quality: smooth forms, the finest materials, attractive colours and an obvious attention to detail immediately evoke feelings of passion, enjoyment and inner security. This is how the Coupé outwardly expresses its inner values, its sporty elegance, its uniqueness and its premium character in this segment.

There is no denying that first impressions count, both visually and emotionally. The first things one feels here are enthusiasm and excitement. But a car also needs to display its qualities on a day-to-day basis, on short trips as well as on long journeys. It therefore requires additional attributes if the "feel-good factor" engendered by the interior design is not to be short-lived. In short, ergonomic design, supreme comfort and reliable, stress-relieving technology are the order of the day. And in these areas, too, the CLK-Class is the new benchmark in the Coupé segment: the interior space, freedom of movement, sitting position, ease of use and a host of Mercedes-style innovations make for a driving experience that is superlative in every respect.

Substantial increase in headroom, elbow room and rear knee room

Size really is all-important if man and machine are to exist in perfect harmony, since it is size that determines the level of occupant space and comfort. In terms of seat spacing, headroom, rear knee room, elbow room and shoulder room, the new, four-seater CLK Coupé has grown in stature vis-à-vis the predecessor model:

• The distance between the front and rear seats – an indication of the amount of room available to the passengers – has been increased by 7 mm to 779 mm.
• Rear-passenger knee room has been extended by 40 mm thanks to the longer wheelbase.
• Front headroom is now 979 mm (without tilting/sliding roof), 24 mm more than in the previous CLK Coupé. And the new Coupé has an extra 12 mm of rear headroom.
• Shoulder room and elbow room have each been improved by 9 mm at the front.

Sophisticated control concept incorporating automatic systems

In their quest for even greater harmony between man and machine, the Mercedes engineers have been working on a immensely promising concept for some time, namely "auto-adaptive ergonomics". This term implies that technology that is largely capable of adapting itself automatically, without driver intervention, the aim being to further reduce stress behind the wheel, enabling the driver to concentrate on what really matters: the road and the driving experience.

The control concept at the heart of the new CLK-Class shows the way forward in this field: the windscreen wipers, lights, interior and exterior mirrors, seats, steering wheel and automatic climate control all adjust automatically according to the situation in hand. Alternatively, once programmed, they operate totally independently and require no further control or controls. Examples of such "automated" systems include:

• ... Headlamp Assist which automatically switches on the exterior lights as it gets darker outside;
• ... the rain sensor which adjusts the windscreen wiper interval depending on how heavy the rain is;
• ... the automatic climate control system – THERMATIC as standard or optional THERMOTRONIC – which relies on sophisticated sensors to maintain the desired temperature for the driver and passengers;
• ... the interior rear-view mirror and exterior mirror on the driver's side, both of which have an automatic dimming function (optional);
• ... the memory function (optional) which allows the storing of individual settings. When the ignition key is inserted, the seat, steering wheel and exterior mirrors automatically adopt their programmed positions. Settings for the THERMOTRONIC luxury automatic climate control system (optional) can also be stored.

The remaining manual controls are remarkably easy to use: the standard-fitted multifunction steering wheel, for example, allows the driver to control the car radio and telephone at the push of a button, or call up important information on the central display in the instrument cluster. In addition, when the car is at a standstill, the same convenient system can be used to program over 50 individual settings, ranging from the digital speedometer read-out to activation of the automatic central locking and limiting of the road speed when winter tyres are fitted. Once programmed, these functions remain permanently active and require no further intervention on the part of the driver.

Controls grouped together in clear operating panels

The controls for other systems are clearly grouped together and within easy reach at the top of the centre dome. This is where driver and front passenger will find the adjusters for the side and central air outlets. Furthermore, the buttons on the panel below can be used to switch on the seat heating, operate the rear sun-blind, deactivate the anti-tow-away protection, PARKTRONIC or ESP® or fold away the rear head restraints, depending on the individual specification of the CLK Coupé. Further components that adorn the elegant and clearly laid-out centre dome – with "brown ash" fine-wood trim for the ELEGANCE line and high-quality "ellypta" aluminium decorative trim for the AVANTGARDE line – include the car radio or COMAND APS (optional) as well as the control panel for the automatic climate control system.

The centre console forms a sweeping continuation of the centre dome towards the rear and has a spacious, two-compartment stowage area as its centrepiece. Its softly padded surface also serves as a height-adjustable armrest for the driver and front passenger. The top compartment houses the (optional) car phone or mobile phone whilst the bottom compartment is air conditioned by the automatic climate control system (standard) and therefore perfect for storing provisions and refreshments. Rounding off the centre console at the rear are two separately adjustable ventilation outlets for the rear passengers.

Stowage space is also in abundance beneath the lid of the glove compartment, which has an extended, elliptical handle. Its capacity is twice that of the glove compartment in the predecessor model, meaning that there is ample room for the standard-fitted 6-CD changer in its top section.

High-grade materials for superlative looks and feel

Besides an immensely attractive design, the CLK interior also benefits from exemplary appointments and a high-quality feel, all of which emphasise the car's premium character. Nowhere is this more evident than on the dashboard which comprises two sections, accentuated by a colour contrast. A polyurethane skin – sprayed onto the base material – gives the dashboard a luxurious feel and high-quality appearance. This production technique enables the creation of both powerful arches and soft curves and facilitates the seamless integration of additional components such as the air outlets into the surface. Unattractive joins are firmly a thing of the past. Even the airbag cover has an invisible join, since the tear seam is hidden out of sight.

The new-look cockpit harmoniously blends into the overall dashboard design. Three perfectly circular gauges with chrome surrounds provide the driver with all the necessary information at a glance: road speed (centre), engine revs (right) and time (left). The fuel gauge and coolant temperature information displays take the form of bar graphs and are located to the left and right of the outer dials (clock and rev counter) respectively. The indicator and warning lights only come on if necessary when the engine is started or during driving. These are cleverly positioned within the driver's field of vision at various points on the instrument cluster.

The same is true of the central display in the middle of the speedometer, with its numerals, characters and symbols in attractive white. Since the central display is linked to the illuminated buttons on the multifunction steering wheel, the driver can use it to view the selected radio station, a personal phone book or navigation instructions. Furthermore, the display also flashes up details of any technical faults and, if required, instructions on how to proceed, all in plain-text form.

Height and reach-adjustable steering wheel as standard

Drivers have a whole host of options for making themselves comfortable in the cockpit of the CLK. Obtaining the perfect steering wheel height and reach couldn't be easier: pulling out the handle under the steering column brings the infinitely variable adjustment feature into play. The steering wheel can be moved back by 35 mm and forward, up and down by 25 mm. For added convenience, Mercedes-Benz offers the option of electrical steering column adjustment in conjunction with the "Memory" package (standard in the CLK 320 and CLK 500). This package also includes an automatic EASY-ENTRY system: when the electronic ignition key is removed, the driver's seat moves back by 60 mm and, at the same time, the steering column is raised to its highest position, to afford the driver greater legroom when getting out of the car. Both the seat and the steering wheel revert to their original positions as soon as the driver is seated and the key has been inserted into the electronic ignition/starter switch.

The state-of-the-art control concept even includes the interior door panels. The Mercedes engineers have positioned the switches for the power windows (standard), remote boot-opening and electrical seat adjustment (optional) in the control panels which are trimmed with fine wood (ELEGANCE) or aluminium (AVANTGARDE). Slim chrome rings surround the air outlets and discreetly enhance the elegant aura of the CLK interior. The same can be said of the elegantly slender decorative trim strip, in fine wood or aluminium, which stretches across the entire width of the door panel in a majestic, sweeping curve. The totally unique mix of wood or aluminium trim with a refined chrome strip further enhances the appearance of the door panels.

Mercedes innovations for tailored seat comfort

The newly developed seats in the CLK-Class offer the driver and front passenger a host of individual options designed to ensure maximum comfort. This means that particularly tall or short drivers can adjust the seat to bring all the car's functions within easy reach. The front seats can be adjusted by the following amounts:

• Fore/aft: 290 mm.
• Height: 53 mm (infinitely variable).
• Seat cushion angle: 8.4 degrees.
• Head restraint height: 85 mm.

The seat frame consists of an aluminium suspension base supported by a hinge at the front for adjusting the angle, and by two small coil springs at the rear. This design enables the seat base to swing on the metal frame and, along with the foam cushions inside the aluminium shells, perform further suspension and shock-absorbing functions. Similar "suspension seat" technology has proven successful in the C-Class, E-Class and SLK Roadster. Further Mercedes-style innovations which are optionally available for the new CLK-Class provide even greater scope for seat comfort individualisation:

• The multicontour seat contains four individually inflatable air cushions which adjust according to the driver's anatomy. As well as infinitely variable lumber and lateral support, the seat has individually adjustable thigh support. These innovations come as standard with the sports seats for the CLK 55 AMG.
• Electrical seat adjustment (standard in the CLK 320, CLK 500 and CLK 55 AMG) makes seat, head restraint and steering wheel adjustment supremely easy. At the push of a button on the door panel, electric motors move the seat, head restraint and steering wheel into the desired positions. These positions can then be stored using the Memory function. Three drivers using three different keys can program their own specific settings in this way.

Easy-Entry system for easy rear access

Standard equipment for the new CLK-Class includes a mechanical Easy-Entry system for the rear passengers. It is operated using a lever next to the head restraint, which initially tilts the seat backrest forwards. Whilst this is happening, the head restraint is unlocked so that it can be pushed into its lowest position.

Interior variability similar to that of an estate car

In the rear of the CLK Coupé, the asymmetrically split-folding seats (standard equipment) can be folded down to free up space for extra luggage or sports equipment, for example. The seat backrests and cushions can be folded forwards individually or together, creating a virtually flat loading area at the rear. The head restraints (which have been folded back) tilt forwards together with the backrests and slot into the specially shaped bottom of the seat cushion where they are held firmly in place.

Climate control system with sophisticated temperature and humidity sensors

At launch, standard equipment in the CLK-Class will include one of the best and most highly efficient climate control systems available: THERMATIC. It operates based on a series of sensor signals which constantly provide the climate control computer with data regarding the current outside and interior temperature as well as the humidity.

Like all Mercedes climate control systems, THERMATIC operates on the "reheat" principle and is also active at low outside temperatures, first cooling the incoming air and then drying it to prevent the windows from misting up. The air is then heated to the selected, desired temperature. The system includes a new feature, namely variable control of the "reheat" function based on the outside humidity, which enables the automatic climate control system to operate substantially more efficiently than a conventional system.

This highly beneficial control feature is made possible thanks to a newly developed refrigerant compressor which is fully adjustable and controlled by the ECU, depending on the required cooling power. And, whereas the air-conditioning compressor was previously activated or deactivated by electromagnetic clutch, it is now engine-driven by means of a permanently engaged belt drive. The fully-adjustable control is provided via a solenoid valve which varies the swept volume of the air-conditioning compressor. Furthermore, dispensing with the conventional clutch makes the compressor lighter and more compact. By introducing this weight-optimised design and new materials, the Mercedes engineers succeeded in reducing the weight of the climate control system by around a fifth.

In "Auto" mode, the THERMATIC system operates independently and controls the interior temperature, air quantity and air distribution based on the individual settings specified by the driver and passenger. Standard features include a recirculating air button, defrost function and a combined dust and pollen filter, as well as the practical "tunnel" function. This is activated by pressing and holding the recirculating air button. The recirculating air flap in the climate control system is then closed automatically, as are any open side windows and the sunroof. These all return to their original positions if the button is pushed again.

Luxury climate control system with solar sensor and additional rear blower

To satisfy even the most discerning of customers, Mercedes-Benz has developed THERMOTRONIC luxury climate control, available as an option (standard in the CLK 500 and CLK 55 AMG). This highly sophisticated system enhances the functions of the standard THERMATIC by the following means, among others:

• ... separate, automatic air distribution for the left and right-hand sides of the vehicle;
• ... an additional solar sensor that provides precise information regarding the sun's angle of incidence. The system therefore detects the seat on which insolation is particularly intensive and can adjust the temperature for this area accordingly.
• ... an additional pollutant sensor with the task of detecting exhaust gas constituents such as carbon monoxide and nitrogen oxide. If the concentration of pollutants increases, the THERMOTRONIC system closes the recirculating air flap automatically.
• ... an activated charcoal filter (fitted as standard) that can be engaged at the push of a button, to absorb pollutants and odours.
• ... a clear and concise display unit indicating the temperature and blower speed;
• ... an additional blower for rear climate control;

The control panel for the THERMOTRONIC differs from its THERMATIC counterpart by dint of two air distribution buttons on the left and right, a rocker switch for controlling the blower and coloured (red and blue) pushbuttons for selecting the temperature.

The air quantity and air flow can be individually controlled and metered by the driver, front passenger and rear passengers on board the CLK Coupé. The two central air outlets and the pivoting round outlets integrated at the side of the dashboard are linked to one of the centrally positioned adjusters which can be used to restrict or completely shut off the air flow in question. The separate air nozzles in the rear, located at the tail-end of the centre console, have the same control functions.

Newly developed air outlets for draught-free ventilation

Indirect ventilation enabled the Mercedes engineers to achieve impressively draught-free climate control: the prominent perforated section at the top of the dashboard conceals an upwards-pointing outlet capable of distributing air to a wide area. In CLK models equipped with the THERMOTRONIC system (optional extra, standard in the CLK 500 and CLK 55 AMG), the driver or the front passenger can use a central adjuster on the dashboard to regulate the temperature of the air flowing into the interior via this indirect ventilation outlet and the four other air outlets, thus allowing an agreeable difference in temperature between the footwell and head area (warm feet, cool head).

Sophisticated audio systems create communication and information centre

Fast and reliable information and communication systems are becoming indispensable for more and more people, including motorists. In this respect, too, the new CLK-Class is in tune with current customer requirements. Which is why it will be launched containing the very latest in communication and information systems. Top of the innovations list is COMAND APS, the Cockpit Management and Data System. COMAND is fitted standard to the CLK 320, CLK 500 and CLK 55 AMG.

It acts as a command centre for all the audio, telematics and telecommunications functions on board the Mercedes Coupé, providing control for car radio, CD drive, dynamic navigation, CD changer, sound system, car phone and TV receiver. And, even though they are linked, the central display in the instrument cluster and the colour COMAND display in the centre console can also be operated independently. By way of example, the cockpit display can show the navigation pointers (arrows) whilst the passenger is scrolling through the electronic phone book on the COMAND screen or viewing a concise road map highlighting the area and route in question. The integrated CD drive can be used either for loading the data from the CD-ROM road map or for playing back audio CDs. If requested, it is also possible to connect up a TV tuner which is housed in the boot of the new CLK-Class. It sends terrestrial TV pictures to the colour display which remains switched on for TV reception up to a speed of about 8 km/h. Further equipment and performance features of the COMAND system include, for example:

• Car radio (VHF, MW, LW) with dual tuner mode and antenna diversity
• 4 x 20-watt amplifier
• Pre-programmed audio settings for Pop, Classical and Speech
• Remote control (optional) in conjunction with TV receiver.

Standard equipment in the new CLK-Class includes the Audio 10 CC (CLK 240) car radio-cassette with receiver unit for VHF, MW, LW and SW, Radio Data System (RDS) for VHF and a whole host of memory options for storing radio stations.

DISTRONIC and other Assist systems for driver stress-relief

State-of-the-art microelectronic systems do not just make life easier for drivers in terms of information and communication, they also facilitate the development of highly effective "Assist" systems which enhance both safety and comfort:

• DISTRONIC autonomous intelligent cruise control, previously the reserve of top-of-the-range Mercedes-Benz models, is now available as an option in the CLK-Class for the first time. The system uses one of the fastest and most powerful microcomputers ever developed for automotive use, which processes the signals it receives from a radar sensor in the radiator grille. This sensor has a range of around 150 metres. Vehicles in front reflect the short-wave radar pulses. The signal delay forms the basis for the distance calculation and the simultaneous frequency change (Doppler effect) is used to determine the relative speed between the vehicles. If the CLK-Class gets too close to the rear bumper of another car, DISTRONIC automatically decelerates or, if necessary, activates the brake to maintain the desired distance. Once the gap between the vehicles has increased again, the system accelerates the car to the previously set desired speed. At any time, the driver can call up information about the desired and actual distance between the CLK-Class and a car ahead using the central display in the instrument cluster.
• On board the new CLK-Class, the LINGUATRONIC voice-operated control system (optional) controls both the major telephone functions and the audio systems. All it takes is a couple of words from the driver, and the car radio will automatically search for another station, skip to a new track on the CD or switch to navigation mode. This system sees Mercedes-Benz making a further important contribution towards improving road safety, since drivers no longer need to take their hands off the wheel in order to use the car phone or audio equipment. LINGUATRONIC therefore makes life easier for drivers, allowing them to focus all their attention on the road. LINGUATRONIC works in conjunction with a telephone, the Audio 10 CC/CD car radio (telephone control only) and the COMAND system.
• PARKTRONIC parking assistance (optional) uses ultrasonic waves to calculate the distance between the car and an obstacle, informing the driver by means of displays on the dashboard and the rear section of the roof lining as well as by means of audible signals.

Engines and transmissions: four of the best

• Three of four powerplants new to the CLK line-up
• New 2.6 litre six-cylinder entry level model: CLK 240
• New top-of-the-range CLK 500 with V8 engine developing 225 kW
• V8 powerplant in the CLK 55 AMG with output boosted by 15kW/20 hp

A whole host of new developments lie beneath the bonnet of the new CLK-Class, in particular many innovations that herald major technical advances. For instance, three of the four powerplants available for the Coupé are new to this Mercedes model series: the powerful five-litre V8 engine from the S-Class, the state-of-the-art V6 powerplant with 2.6-litre displacement, and the powerful eight-cylinder AMG engine. This new engine line-up delivers exemplary emissions performance whilst ensuring vastly enhanced driving pleasure, agility and power delivery -- in every displacement class. The numbers back this up:

• All models already comply with the strict EU-4 emission standard due to come into force in the year 2005 and the US-American standards for "Ultralow Emission Vehicles" (ULEV).
• The four CLK engines have power outputs ranging from 125 kW to 270 kW (preceding models: 120 kW to 255 kW).
• Maximum engine torque ranges from 240 to 510 Newtonmetres (predecessor models: 230 to 510 Newtonmetres).

New V8 CLK 500 model with power to match a thoroughbred sports car

The new eight-cylinder model in the CLK-Class line-up is called the CLK 500. In this guise, the new Coupé delivers driving dynamics and performance on a par with thoroughbred sports cars such as the SL 500 or top-of-the-range Coupés such as the CL 500. One look at the figures confirms this: the CLK 500 takes a mere 6.0 seconds to accelerate from 0 to 100 km/h and, thanks to its exemplary torque characteristics, completes the sprint from 60 to 120 km/h in just 6.2 seconds -- class- leading figures in this Coupé segment. A quick dab of the accelerator is all it takes to feel the sheer power beneath the bonnet of the new top-of-the-range CLK model: even at a speed just above idle, the V8 powerplant plants 344 Newtonmetres of torque onto the road -– an impressive 75 % of maximum torque.

Furthermore, at 2240 rpm, there are a massive 428 Newtonmetres available -- 93 percent of the maximum torque of 460 Newtonmetres, which the engine provides from 2700 rpm and maintains until 4250 rpm.

Two powerful six-cylinder models with 2.6 and 3.2-litre displacement

Mercedes-Benz has extended the six-cylinder line-up for the new CLK-Class by adding the tried-and-tested 2.6-litre V6 engine which develops 125 kW and provides a maximum torque of 240 Newtonmetres at 4500 rpm.

The CLK 320 remains unchanged in the line-up. And with good reason: the powerful V6 powerplant (160 kW), is particularly well-suited to the new Mercedes Coupé, since it delivers equally impressive performance during either sporty driving with high power output or more serene and relaxed driving at lower engine speeds. With 310 Newtonmetres of torque on tap from just 3000 rpm, the six-cylinder engine offers the very best of both worlds.

Driving dynamics tailored to driver requirements

Mercedes-Benz also offers a newly developed system in the CLK-Class, which recognises individual driving styles and adapts the drive characteristics of the engine accordingly, thus further adding to the scintillating, dynamic driving experience. For those that fancy themselves as racing drivers, the ECU does its best to please, providing superlative accelerator response. If, on the other hand, the computer detects a driver looking for comfort rather than speed, it adapts the ECU control characteristics, harmonising the engine settings to suit this particular style of driving.

To ensure there is no doubt when detecting the driving style or the driver's requirements, the system monitors the pedal movements extremely closely and records every instance of acceleration before adapting the pedal characteristics. This is a continual step-by-step process which ensures that the driving characteristics never contradict the driver's expectations. In the case of a sporty driving style, the pedal characteristics change so that, although pedal travel may remain the same, the throttle valve is opened further than would usually be the case. The engine therefore reacts more instantaneously to driver input and is quicker to provide maximum acceleration. If a more comfort-oriented driving style is detected, the ECU sets flatter pedal characteristics. In this instance, although the pedal travel remains the same, the throttle valve opens more slowly than usual and acceleration is smoother.

Assuming the CLK 500 is being driven at 120 km/h in third gear, for example, and the ECU has detected a sporty driving style, the accelerator pedal only needs to be pressed halfway to the floor to obtain an effective acceleration of over 80 percent. If the driving style is more comfort-oriented, this degree of acceleration potential is not obtained until the accelerator has been pressed approximately 75 percent to the floor.

New CLK 55 AMG: 0 to100 km/h in 5.2 seconds

At the heart of the new high-performance CLK 55 AMG Coupé is a further improved V8 powerplant with 5439-cc displacement, developing 15 kW more than its successful predecessor model. The eight-cylinder engine provides 510 Newtonmetres of pulling power from just 4000 rpm, impressive figures for a naturally aspirated engine. This enables the two-door model to accelerate from 0 to 100 km/h in just 5.2 seconds, making it exactly 0.2 seconds faster than the previous CLK 55 AMG. The top speed is electronically limited to 250 km/h -- although the speedometer dial in the flagship sports model goes up to 320 km/h, giving an indication of the potential power harnessed beneath the bonnet. Prominent features of the V8 engine from Mercedes-AMG include the use of forged-aluminium pistons and specially developed oil jets for cooling the pistons. Optimum cylinder charging is assured thanks to a twin-pipe intake train, specially formed camshafts and a sports-tuned variable intake manifold, which provide the eight-cylinder engine with all it needs to deliver exemplary torque characteristics. The exhaust system consists of two firewall and four underfloor catalytic converters as well as specially designed silencer systems which minimise exhaust gas backpressure.

Five-speed automatic transmission with new converter lockup mechanism

An electronically controlled five-speed automatic transmission with Touchshift is fitted standard in all CLK-Class models. With its modified control set-up, the Touchshift feature gives the driver even more options for engaging the ideal gear for the situation in hand. Holding the selector lever in the "--" position tells the transmission to keep moving down the ratios until the one that can best slow or accelerate the Coupé is found. When driving downhill, the driver thus has the convenient option of shifting down to obtain the best possible engine braking effect. The same is true when accelerating, since the ratio from which the vehicle derives optimum performance can be engaged. Manual shifts down into the optimum gear are monitored by the transmission ECU so as to prevent the permitted engine speed limits from being exceeded. The Mercedes engineers have extended the operating time during which the torque converter lockup clutch is engaged, both to further improve vehicle agility when moving off and to reduce fuel consumption. Torque converter lockup is now possible in any gear – even first gear – whereas, before, it could only be engaged in third, fourth and fifth. Torque converter lockup reduces the slip that usually occurs between the pump and the turbine wheel. This increases efficiency and reduces fuel consumption.

Formula 1-style gearshift on the steering wheel

Another special technical feature enhances the sporty driving experience in the new CLK 55 AMG: a five-speed automatic transmission with steering wheel gearshift and SPEEDSHIFT function. This means that – as in the top-of-the-range SL 55 AMG sports car – the driver can opt for a Formula-1-style gearshift with two selector switches located behind the top two steering wheel spokes. To enable the system, the driver must first activate manual transmission mode by pressing the program select button on the automatic selector lever. The selector switch on the right of the steering wheel is used for upshifts whilst the one on the left is for downshifts. The transmission only intervenes of its own accord and changes gear if the maximum permitted engine speed is exceeded. A display in the instrument cluster tells the driver which transmission mode is active and which gear is selected.

The additional SPEEDSHIFT function combines the advantages of a five-speed automatic transmission with the dynamism of a manual transmission. Notable technical features include active downshifting: once deceleration reaches a certain level, the transmission automatically shifts down and engages the correct gear, for example if a sporty driver brakes before entering a bend. Similarly, when cornering at speed, the transmission reliably retains the engaged gear once lateral acceleration reaches a certain level, thus ensuring unbridled driving pleasure whilst preventing any power-off effects.

Furthermore, to shift down before overtaking, the driver of the new CLK 55 AMG merely has to move the Touchshift lever to the left and briefly hold it there. The transmission control unit then selects the optimum gear for powerful acceleration, depending on the road speed and the engine map.

Chassis and control systems: right on track

• Three-link front suspension for dynamic handling and supreme comfort
• Enhanced safety and lighter weight thanks to sophisticated rack-and-pinion steering
• Optional sports suspension for all model versions
• ESP® and other latest-generation active safety systems
• Brake system with immense power reserves
• 16-inch light-alloy wheels and mixed-profile tyres as standard
• CLK 55 AMG with sports suspension and high-performance brakes

In terms of agility, straight-line stability, steering precision, road roar, tyre vibration and braking power – in short, practically all areas of chassis technology – the new CLK-Class achieves peak-performance figures which add up to ensure one thing above all: an even more dynamic driving experience.

The Mercedes engineers spared no expense in newly developing or further improving the axles, steering and brakes, to exceed the already high standards set by the predecessor model. In doing this, they were able to call upon tried-and-tested systems from the Stuttgart manufacturer's passenger car line-up and adapt these systems for use in the new Coupé. This involved the following:

• Replacing the previously installed double-wishbone design with state-of-the-art three-link front suspension with McPherson struts, thus enabling major advances, particularly with respect to wheel location, comfort and steering precision. Furthermore, this design provides greater deformation paths in the area of the lower links, enabling the front end of the CLK Coupé to absorb more impact energy than previously. The forwards-slanting tension struts on the front axle and the integral support – to which front axle components, the steering gear and the engine mounts are attached – are made of aluminium.
• The Mercedes engineers have replaced the previously fitted recirculating ball-type steering with power-assisted rack-and-pinion steering which is even more responsive and thus better suits the dynamic character of the new Coupé. What is more, this system is lighter and offers added safety benefits in the event of a frontal collision. Mercedes-Benz offers the option of speed-sensitive parameter steering for the CLK-Class (standard in the CLK 500). This makes manoeuvring or parking practically child's play. At 380 mm, the steering wheel diameter is 10 mm smaller than in the preceding model. The steering wheel rim is made from an combination of steel and magnesium, which deforms in a predetermined manner in the event of a collision, thus reducing the risk of injury to the driver.

• In conjunction with the newly developed front axle, the longer wheelbase and the standard-fitted Electronic Stability Program (ESP®), the tried-and-tested multi-link independent rear suspension ensures a high degree of active safety, dynamism and comfort. The track rods, hub carriers and subframe for the rear axle have also been radically reengineered by the Mercedes engineers. New kinematics and elasto-kinematics, largely due to the use of optimised bearings and mounts, ensure even better vibration response and reinforce the understeer characteristics of the Coupé. All engine versions available with the new CLK-Class are equipped with anti-roll bars.

Factory-fitted sports suspension for further enhanced driving dynamics

Motorists who fancy themselves as racing drivers can order the CLK Coupé chassis with tauter suspension and damper settings. Mercedes-Benz supplies this sports suspension set-up, in which the body is 15 mm lower at the front and rear axle, as an option for all lines and model versions. Spring rates for the sports suspension are five percent higher.

The CLK 55 AMG is to be launched with high-performance AMG sports suspension. Enlarged anti-roll bars on the front and rear axles, coupled with specially tuned springs and gas-filled shock absorbers, ensure supreme roadholding and incorporate the technical advances necessary for sporty handling.

Brake technology for the ultimate in performance

In terms of size, technology and equipment, the Mercedes engineers have tuned the brakes to each of the different engines and the wide range of outputs available with the new CLK-Class. For instance, the flagship CLK 500 has 4-piston fixed-caliper disc brakes on the front axle, of the kind used for the SL 500 Roadster. The eight-cylinder model has 2-piston fixed-caliper disc brakes on the rear axle. The diameters of the internally ventilated front and rear brake discs are 345 and 300 mm respectively.

The technology used for the tandem brake booster (7/8-inch) made of aluminium is lifted from the S-Class. It is equipped with an electronically controlled solenoid valve that enables particularly precise application of the brake pressure. The main brake cylinder – also made of aluminium -- is fitted with a pretensioned compression spring between the primary and secondary pistons. In contrast to conventional systems, in which the secondary piston only moves due to the pressure in the primary circuit, both brake circuits are activated simultaneously in the new CLK-Class. Substantially shorter pedal travel is just one of the benefits of this immediately obvious to the driver.

The development team drew on its experience in motorsport when designing the brakes for the high-performance CLK 55 AMG Coupé. And the upshot: four-piston fixed-caliper disc brakes on the front axle, with internally ventilated and perforated brake discs measuring 345 mm in diameter, and two-piston fixed-caliper disc brakes at the rear, also with internally ventilated disc brakes (diameter 300 mm). This means the brake system on the AMG Coupé can rise to almost any challenge with an impressive maximum deceleration of 10.5 metres/second².

Front axle	CLK 240, CLK 320	CLK 500	CLK 55 AMG
Version	Single-piston sliding-caliper, Internally ventilated	4-piston fixed caliper, internally ventilated	4-piston fixed-caliper, internally ventilated and perforated
Wheel cylinder Ø mm	57	44/40	44/40
Brake disc - diameter mm - thickness mm	300 28	345 30	345 30
Rear axle
Version	2-piston fixed-caliper, solid	2-piston fixed-caliper, internally ventilated	2-piston fixed- caliper, internally ventilated
Wheel cylinder Ø mm	36	42	42
Brake disc - diameter mm - thickness mm	290 10	300 22	300 22

Electronic control systems for superlative active safety

As is the case with all state-of-the-art Mercedes passenger cars, the new CLK-Class is equipped with the best and most highly effective active safety systems available – as standard. They reduce the risk of skidding when cornering, hold the Coupé safely on track when braking, improve starting on slippery surfaces and reduce the emergency-stopping distance. This high-performance technology is an important part of the Mercedes-Benz safety concept and actively helps to prevent road accidents.

• The Electronic Stability Program (ESP®) uses various sensor signals to detect dangerous situations even earlier and faster than the most experienced of drivers can, intervening automatically with the utmost precision to stabilise the vehicle. It does this through precisely modulated brake pulses on one or more wheels and by reducing the engine torque. The new CLK Coupé is equipped with latest-generation ESP® which operates extremely harmoniously thanks to its supremely smooth response.
• The Anti-lock Brake System (ABS) prevents the wheels from locking up during emergency braking and works as reliably on dry tarmac as it does on wet surfaces or black ice. As a result, the Coupé retains directional stability at all times -- even under maximum deceleration.
• Acceleration Skid Control is part of the Electronic Stability Program and prevents the driven wheels from spinning when starting off or accelerating. If the driver accelerates too abruptly and one of the driven wheels starts to spin, this wheel is braked by ASR until sufficient traction is re-obtained. In addition, the engine torque is also reduced, depending on the situation on the road.
• Brake Assist (BAS) is activated if a critical situation arises and the driver is too slow or not hard enough on the brake pedal. In such instances, the system automatically provides maximum-power braking within a fraction of a second, thus substantially reducing the car's stopping distance.

Light-alloy wheels and wide-base tyres for a distinctly sporty appearance

Further special features of the new CLK-Class designed to further enhance the sporty nature of the Coupé include different-sized tyres on the front and rear axles. The standard equipment package includes 205/55 R 16 tyres on the front axle and 225/50 R 16 tyres at the rear. The top-of-the-range V8 CLK 500 model has 17-inch tyres, namely size 225/45 R 17 at the front and 245/40 R 17 at the rear. The Mercedes engineers have adapted the design of the standard-fitted light-alloy wheels to suit the individual character of each line: they fit the ELEGANCE model with smart seven-hole rims, whilst the AVANTGARDE line comes with a distinctly sporty five-spoke-rim look that makes it really stand out.

Optional equipment for all model versions includes special 17-inch light-alloy wheels or 18-inch AMG light-alloy wheels. The CLK 55 AMG catches the eye with its 18-inch light-alloy wheels, with new twin-spoke design as standard or classic five-spoke design as an option. This high-performance Coupé has size 255/40 R 18 tyres on the front axle and size 255/35 R 18 on the rear axle.

Model	Tyres and rims
CLK 240, CLK 320	Front: 205/55 R 16 on 7 J X 16 Rear: 225/50 R 16 on 8 J x 16
CLK 500 or optional for all other model versions with special rims	Front: 225/45 R 17 on 7.5 J x 17 Rear: 245/40 R 17 on 8.5 J x 17
CLK 55 AMG	Front: 225/40 R 18 on 7.5 J x 18 Rear: 255/35 R 18 on 8.5 J x 18

Mercedes-Benz CLK 240
Engine
Number of cylinders/ arrangement		6/V, 3 valves per cylinder
Displacement		2597
Bore x Stroke	Mm	89.9 x 68.2
Rated power	kW/hp	125/170 at 5500 rpm
Rated torque	Nm	240 at 4500 rpm
Maximum engine speed	Rpm	6000
Compression ratio		10.5 : 1
Carburetion		Microprocessor-controlled petrol injection with hot-film air flow sensor (HFM)
Transmission
Clutch		Single-plate dry clutch
Transmission type		5-speed automatic
Transmission ratios	Final drive	3.46
	1st gear	3.95
	2nd gear	2.42
	3rd gear	1.49
	4th gear	1.00
	5th gear	0.83
	Reverse	3.15
Chassis
Front axle		Three-link front suspension, McPherson, anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Rear axle		Multi-link independent rear suspension, anti-squat/anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Brakes		Hydraulic dual-circuit brake with vacuum booster, stepped master brake cylinder, internally ventilated front disc brakes, solid rear disc brakes, drum parking brake at rear, ABS, Brake Assist, ESP®
Steering		Rack-and-pinion power steering, steering shock absorbers
Wheels		Front: 7 J x 16. Rear: 8 J x 16
Tyres		Front: 205/55 R 16. Rear 225/50 R 16
Dimensions and weights
Wheelbase	mm	2715
Track front/rear	mm	1493/1474
Overall - length	mm	4638
Overall - width	mm	1740
Overall - height	mm	1413
Turning circle	M	10.76
Max. boot capacity*	L	435
Kerb weight (EC)	Kg	1575
Payload	Kg	455
Gross vehicle weight	Kg	2030
Tank capacity/Reserve	L	62/8
Performance and fuel consumption
		5-speed automatic
Acceleration 0-100 km/h	S	9.5
Top speed	km/h	210
Fuel consumption,NEDC comb.	l/100 km	10.4
Preliminary figures; *according to VDA measuring method

Mercedes-Benz CLK 320
Engine
Number of cylinders/ arrangement		6/V, 3 valves per cylinder
Displacement		3199
Bore x Stroke	Mm	89.9 x 84.0
Rated power	kW/hp	160/218 at 5700 rpm
Rated torque	Nm	310 at 3000-4600 rpm
Maximum engine speed	Rpm	6000
Compression ratio		10.0 : 1
Carburetion		Microprocessor-controlled petrol injection with hot-film air flow sensor (HFM)
Transmission
Clutch		Single-plate dry clutch
Transmission type		5-speed automatic
Transmission ratios	Final drive	3.27
	1st gear	3.95
	2nd gear	2.42
	3rd gear	1.49
	4th gear	1.00
	5th gear	0.83
	Reverse	3.15
Chassis
Front axle		Three-link front suspension, McPherson, anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Rear axle		Multi-link independent rear suspension, anti-squat/anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Brakes		Hydraulic dual-circuit brake with vacuum booster, stepped master brake cylinder, internally ventilated front disc brakes, solid rear disc brakes, drum parking brake at rear, ABS, Brake Assist, ESP®
Steering		Rack-and-pinion power steering, steering shock absorbers
Wheels		Front: 7 J x 16. Rear: 8 J x 16
Tyres		Front: 205/55 R 16. Rear 225/50 R 16
Dimensions and weights
Wheelbase	mm	2715
Track front/rear	mm	1493/1474
Overall - length	mm	4638
Overall - width	mm	1740
Overall - height	mm	1413
Turning circle	M	10.76
Max. boot capacity*	L	435
Kerb weight (EC)	Kg	1605
Payload	Kg	455
Gross vehicle weight	Kg	2060
Tank capacity/Reserve	L	62/8
Performance and fuel consumption
		5-speed automatic
Acceleration 0-100 km/h	S	7.9
Top speed	km/h	210
Fuel consumption,NEDC comb.	l/100 km	10.4
Preliminary figures; *according to VDA measuring method

Mercedes-Benz CLK 500
Engine
Number of cylinders/ arrangement		8/V, 3 valves per cylinder
Displacement		4966
Bore x Stroke	Mm	97.0 x 84.0
Rated power	kW/hp	225/306 at 5600 rpm
Rated torque	Nm	460 at 2700-4250 rpm
Maximum engine speed	Rpm	6000
Compression ratio		10.0 : 1
Carburetion		Microprocessor-controlled petrol injection with hot-film air flow sensor (HFM)
Transmission
Clutch		Single-plate dry clutch
Transmission type		5-speed automatic
Transmission ratios	Final drive	2.82
	1st gear	3.56
	2nd gear	2.19
	3rd gear	1.41
	4th gear	1.00
	5th gear	0.83
	Reverse	3.17
Chassis
Front axle		Three-link front suspension, McPherson, anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Rear axle		Multi-link independent rear suspension, anti-squat/anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Brakes		Hydraulic dual-circuit brake with vacuum booster, stepped master brake cylinder, internally ventilated front disc brakes, internally ventilated rear disc brakes, drum parking brake at rear, ABS, Brake Assist, ESP®
Steering		Rack-and-pinion power steering, steering shock absorbers
Wheels		Front: 7.5 J x 17. Rear: 8.5 J x 17
Tyres		Front: 225/55 R 17. Rear 245/40 R 17
Dimensions and weights
Wheelbase	mm	2715
Track front/rear	mm	1497/1478
Overall - length	mm	4638
Overall - width	mm	1740
Overall - height	mm	1413
Turning circle	M	10.76
Max. boot capacity*	L	435
Kerb weight (EC)	Kg	1660
Payload	Kg	455
Gross vehicle weight	Kg	2115
Tank capacity/Reserve	L	62/8
Performance and fuel consumption
		5-speed automatic
Acceleration 0-100 km/h	S	6.0
Top speed	km/h	210
Fuel consumption,NEDC comb.	l/100 km	11.5
Preliminary figures; *according to VDA measuring method

Mercedes-Benz CLK 55 AMG
Engine
Number of cylinders/ arrangement		8/V, 3 valves per cylinder
Displacement		5439
Bore x Stroke	Mm	97.0 x 92.0
Rated power	kW/hp	270/367 at 5750 rpm
Rated torque	Nm	510 at 4000 rpm
Maximum engine speed	Rpm	6700
Compression ratio		11.0 : 1
Carburetion		Microprocessor-controlled petrol injection with hot-film air flow sensor (HFM)
Transmission
Clutch		Single-plate dry clutch
Transmission type		5-speed automatic with SPEEDSHIFT
Transmission ratios	Final drive	3.06
	1st gear	3.59
	2nd gear	2.19
	3rd gear	1.41
	4th gear	1.00
	5th gear	0.83
	Reverse	3.16
Chassis
Front axle		Three-link front suspension, McPherson, anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Rear axle		Multi-link independent rear suspension, anti-squat/anti-dive, coil springs, gas-filled shock absorbers, anti-roll bar
Brakes		Hydraulic dual-circuit brake with vacuum booster, stepped master brake cylinder, internally ventilated front disc brakes, internally ventilated rear disc brakes, drum parking brake at rear, ABS, Brake Assist, ESP®
Steering		Rack-and-pinion power steering, steering shock absorbers
Wheels		Front: 7.5 J x 18. Rear: 8.5 J x 18
Tyres		Front: 225/40 R 18. Rear 255/35 R 18
Dimensions and weights
Wheelbase	mm	2715
Track front/rear	mm	1495/1474
Overall - length	mm	4638
Overall - width	mm	1740
Overall - height	mm	1414
Turning circle	M	10.76
Max. boot capacity*	L	435
Kerb weight (EC)	Kg	1715
Payload	Kg	405
Gross vehicle weight	Kg	2120
Tank capacity/Reserve	L	62/8
Performance and fuel consumption
		5-speed automatic
Acceleration 0-100 km/h	S	5.2
Top speed	km/h	250
Fuel consumption,NEDC comb.	l/100 km	12.8
Preliminary figures; *according to VDA measuring method