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Luxury, efficiency, perfection: The new generation CL

Discussion in 'S-Class Coupe' started by Giannis, Sep 7, 2010.

  1. Giannis

    Giannis Global Moderator / Editor Staff Member

    The new generation Mercedes-Benz CL: The epitome of luxury coupés


    With a design perfected through an immaculate sense of style, highly exclusive appointments and cutting-edge technology, the extensively updated Mercedes-Benz CL underscores its claim to supremacy as the summit of automotive refinement. The entirely re-designed 320 kW (435 hp) V8 biturbo engine of the CL 500 BlueEFFICIENCY, with a combined consumption of 9.5 litres premium-grade petrol per 100 kilometres, opens a new dimension of efficiency in the luxury coupé category. Its NEDC figures show savings of around 22 percent over its predecessor model, CO2 emissions having dropped from 288 grams per kilometre to 224 grams per kilometre. This significant reduction is achieved thanks to the newly-developed BlueDIRECT technology with third-generation spray-guided direct injection, with the contribution of the specially-designed BlueEFFICIENCY package of the CL 500 BlueEFFICIENCY. The package includes, among other things, energy-efficient control of alternator, fuel pump, air-conditioning compressor and power-assisted steering system, as well as the ECO start/stop function. It also features the use of low rolling resistance tyres and the energy-optimised Active Body Control system. In addition, the Mercedes-Benz developers equipped the CL with state-of-the-art multimedia technology, thus helping this model, produced with a high proportion of hand-finished work, to retain its position as the epitome of quality in its class.

    With the new generation of the CL, the Stuttgart-based automaker focuses on fuel consumption and exhaust gas emissions in the exclusive high-end segment, too. According to Dr Dieter Zetsche, Chairman of the Board of Management of Daimler AG: "The CL is the ideal ambassador for our brand. To a special degree it integrates the things that go to make a Mercedes-Benz: fascination, perfection and responsibility. And with the new generation we raise the ante particularly in the area of efficiency. But in the realms of design, safety, comfort and performance, too, the CL shows: ahead is where Mercedes is."

    In addition, a combination of cutting-edge camera and radar-based assistance systems unique in the luxury coupé segment, including the innovation of the Active Lane Keeping Assist and the Active Blind Spot Assist, makes of the CL a "thinking" partner of the driver. The modified Active Body Control (ABC) with crosswind stabilisation system and the Direct-Steer system also contribute to enhancing safety and driving enjoyment.

    Design: a muscular, self-assured presence

    The exterior appearance of the new CL generation is characterised by the terse profile of the bonnet, the dynamic V-shape radiator grille and the curving headlamps – design details that discreetly but effectively emphasise the car's elegant yet powerful lines.

    The front bumper, too, presents a new design with three air intake openings and a chrome trim strip. An LED strip with chrome surround for the daytime running lamps is elegantly integrated in the side openings for the brake cooling air. With their standard-fit Intelligent Light System (ILS) and Adaptive Highbeam Assist, the headlamps offer state-of-the-art illumination technology. The latest LED technology in the turn indicators and position marker lamps rounds off the car's advanced image. The rear of the vehicle is characterised by the newly-designed tail lights.

    New V8 biturbo engine with innovative technology

    The new-generation CL also assumes a pioneering role in the drive system sector. Under the bonnet of the CL 500 BlueEFFICIENCY and CL 500 4MATIC BlueEFFICIENCY a new V8 biturbo engine with BlueDIRECT technology delivers its impressive power. With its 4663 cubic centimetres displacement, the eight-cylinder engine produces 320 kW (435 hp) so that despite 0.8 litres less displacement, it is still around 12 percent more powerful than its predecessor, which had an output of 285 kW (388 hp). At the same time, torque was raised from 530 Nm to 700 Nm – an increase of 32 percent. Combined consumption in the New European Driving Cycle (NEDC), on the other hand, drops by around 22 percent to 9.5 litres of premium petrol per 100 kilometres for the rear-wheel drive version. CO2 emissions consequently sink from 288 grams per kilometre to 224 grams per kilometre. The CL 500 BlueEFFICIENCY requires a mere 4.9 seconds to accelerate from a standstill to 100 km/h (previous model: 5.4 seconds). Summing up: the CL 500 BlueEFFICIENCY is significantly more agile, torquey and thriftier than its predecessor.

    The BlueDIRECT technology package of the V8 biturbo includes a series of new developments, unique in their combination. Worthy of mention among these is the third generation spray-guided direct petrol injection with piezo injectors and multi-spark ignition with up to four ignition sparks within a millisecond. Together both enable an innovative combustion process called "homogenous split". Other factors contributing to the exemplary low fuel consumption continue to be the consistent use of friction-optimised pistons, piston rings and cylinder barrels, the on-demand control of oil pump and the new three-phase thermal management in the coolant circuit. The luxury coupé's technology package includes the ECO start/stop function and alternator control in accordance with the handling situation and on-board voltage, including kinetic energy recuperation in overrun mode.

    The CL 600, with its 380 kW (517 hp) 12-cylinder biturbo engine remains the top-of-the-line model: it accelerates the luxury coupé from a standstill to 100 km/h in impressive 4.6 seconds and now also complies with the Euro 5 emissions control standard.

    A unique combination of driver-assistance systems

    With state-of-the-art assistance and protection systems the new generation CL underpins its status as an automotive masterwork and technology platform of the Stuttgart-based company. The attentive assistants turnthe Mercedes model into an "intelligent" partner which is able to "see", "feel", respond "instinctively" to detected dangers and act "on its own initiative" in order to avoid accidents or to reduce their severity. The trailblazing driver assistance systems in the CL are based on cutting-edge radar, camera and sensor technology.

    Thus, in the new-generation CL the Active Lane Keeping Assist celebrates its premiere (at the same time as in the S-Class). If the vehicle threatens to cross a broken lane marking line, the system actuates an electric motor in the steering wheel, causing it to vibrate briefly – giving the driver a discreet but effective warning hint to countersteer immediately. The active system springs into action if the Mercedes coupé unintentionally crosses a continuous lane marking line to the right or to the left. In this case, it intervenes by gently braking the wheels of the opposite side of the car, helping the driver to stay in the lane. In order to do this Active Lane Keeping Assist avails itself of the Electronic Stability Program ESP®.

    Active Lane-Keeping Assist evaluates information provided by a camera mounted on the inside of the windscreen. It identifies the contrast between the road surface and the lane marking lines. In addition to this, using radar the system scans the side of the roadway for crash barriers and other roadway edge markings. This Mercedes assistance system also evaluates the driver's actions and can thus reliably determine whether the car is departing from the lane intentionally or not. For this reason, there is no warning if the driver accelerates hard just before overtaking or when accessing a motorway, or if he brakes hard or steers into a curve.

    Targeted brake actuation: Active Blind Spot Assist

    A further innovation Mercedes-Benz offers for the CL is Active Blind Spot Assist, a system that makes use of a multi-stage warning concept. If it detects that a change of lane would be too dangerous, it warns the driver by displaying a red triangle in the glass of the exterior mirror. Close-range radar sensors monitor the area immediately to the side and to the rear of the car. If the driver disregards this warning and, for example, actuates the turn indicator, an audible warning also sounds. If the driver continues to ignore the warnings and comes dangerously close to a vehicle in the neighbouring lane, a novel feature of the system acts: a corrective braking intervention via ESP® on the wheels of the opposite side of the vehicle. This causes a yaw movement about the car's vertical axis due to the unequal distribution of the braking forces. If despite this course correction an accident cannot be avoided, the Active Blind Spot Assist system can reduce the consequences of a collision through the brake actuation.

    Assistants to see and be seen better

    Adaptive Highbeam Assist is another standard-fit system featured by the CL. This camera-based system can recognise oncoming vehicles or vehicles ahead with their lights on, and then controls the headlamps to ensure the best possible beam range without dazzling other road users. In addition, Mercedes-Benz offers the Night View Assist Plus system for the CL, featuring a special infrared camera for pedestrian detection: as soon as the system detects pedestrians on the road ahead, these are highlighted additionally in the display, in order to catch the driver's attention better.

    The images supplied by the windscreen camera are also used by the new, optional Speed Limit Assist, which recognises speed limit signs in passing and shows the relevant speed limit in the central display and on the navigation system's map display (standard for the CL 600).

    For the new-generation CL, Mercedes-Benz has also improved the long and medium-range radar used by Brake Assist PLUS (BAS PLUS) and DISTRONIC PLUS proximity control.

    An "electronic crumple zone": the PRE-SAFE® Brake

    Mercedes-Benz also offers another radar based system for the luxury coupé as a component of the Driving Assistance package Plus in the form of the PRE-SAFE® Brake. If the driver is distracted and fails to recognise the imminent danger of a rear-end collision or the warning signal of an assistance system, this system can intervene and brake the vehicle independently. If the driver fails to react even after automatic, partial braking action, this most recent development stage of the PRE-SAFE® Brake activates the maximum braking pressure around 0.6 seconds before what it now recognises as an unavoidable collision -- an emergency braking action that can significantly mitigate the severity of the impact. The PRE-SAFE® Brake thus acts as a kind of "electronic crumple zone".

    Warns driver of drowsiness: ATTENTION ASSIST

    Drowsiness is one of the most common causes of accidents. This is why Mercedes experts have developed the ATTENTION ASSIST system which forms part of the standard equipment of the new-generation CL. As the vehicle is being driven, the system continuously evaluates more than 70 different parameters in order to identify driver drowsiness and provide a warning before the dangerous micro-sleep phase begins. Observing the driver's steering behaviour has proved to be a particularly strong indicator: several years of practical research by Mercedes-Benz have shown that drowsy drivers make minor steering errors which they often correct very rapidly in a characteristic way. This steering behaviour is recognised by a special steering angle sensor. Observing the driver's eyes cannot always provide conclusive evidence of sleep since many drivers can experience micro-sleep with their eyes open.

    Active Body Control reduces the effect of a crosswind

    The CL also meets the highest standards in terms of driving dynamics and agility. This is in part thanks to Direct-Steer, with a steering ratio that varies with the steering angle, and modified Active Body Control (ABC) with crosswind stabilisation (standard for the CL 500 BlueEFFICIENCY and CL 600). This latest stage in active suspension development modifies the wheel load distribution via the ABC spring struts within milliseconds, depending on crosswind direction and intensity, to the extent that it can largely compensate the effects of the crosswind.

    The Active Body Control suspension system with which Mercedes-Benz ushered in new dimensions of driving dynamics in the CL Coupé of the preceding C 215 model series in 1999, is unique worldwide as it not only regulates roll, but pitching and squatting movements as well, ensuring a perfect harmony of comfort and handling stability. Since the introduction of this innovative system, engineers in Sindelfingen have continuously improved on it, so that eleven years later it still marks the summit of automotive engineering. In addition to crosswind stabilisation, in its latest version the active suspension features a new energy-optimised hydraulic pump that takes part of the burden off the engine, contributing towards reducing fuel consumption.

    Additional safety and agility at the physical limits is provided in the new-generation CL by the standard-fit Torque Vectoring Brake – targeted, one-sided braking intervention at the inside rear wheel when cornering. This enables the luxury coupé to turn into the bend under precise control with even greater agility.

    Onboard infotainment: the most advanced multimedia technology

    In line with its serene character and claim to be a technological masterwork, the CL also sets standards where onboard infotainment is concerned. Thus, the Stuttgart automotive manufacturer equips its flagship model with the new SPLITVIEW technology for the COMAND control and display system centrally located in the centre console (standard for the CL 600 in conjunction with Front Seat Entertainment package). This innovative display concept allows the driver and front passenger to view different contents simultaneously on one and the same screen. While the driver, for example, uses the map-based navigation system, the front passenger can be watching a film on DVD.

    The standard COMAND control and display system with Bluetooth®, USB and SD card interfaces offers customers the possibility of exporting their stored data to other vehicles and multimedia devices. It is also possible to transfer and update navigation data. In the glove compartment Mercedes-Benz integrates as optional equipment the Media Interface – an interface for mobile audio and video devices – devices such as the iPod® and every other possible customer device.

    The optional Navigation package with COMAND APS (standard for the CL 600) features a Europe-wide navigation system whose data are stored on a 40-gigabyte hard disc, enabling extremely rapid route calculation. Another factor contributing to a high level of navigation comfort is the detailed three-dimension map display including updates free of charge for three years. For musical entertainment COMAND APS provides a radio, a CD/DVD player with MP3 function, an equaliser with speed-dependent volume control and the MUSIC REGISTER with a 7.2 gigabyte hard disc which stores around 2500 digital music files in MP3, AAC or WMA format (which can be conveniently transferred to the REGISTER from PC memory cards). The system recognises music files played on CD, DVD or from the MUSIC REGISTER using its stored Gracenote® database, and shows the title, album and performer in the colour display. Another new function, Music Search, enables CL drivers and passengers to search SD memory cards, USB sticks, CDs and DVDs for specific music titles and performers.

    The Navigation package also includes the latest-generation LINGUATRONIC voice-operated control system that controls the navigation, telephone and audio devices via whole-word input. Benefit: the driver no longer needs to spell out his commands but simply speaks the corresponding words as whole words when entering the destination or choosing a radio station or a music title from the MUSIC REGISTER, or when calling up a name from the phone book.

    The further developed surround sound system with Discrete Logic7® technology developed by Mercedes-Benz together with audio specialists Harman Kardon® delivers an outstanding performance with three-dimensional sound as a natural 360-degree musical experience for all passengers of the CL. Mercedes-Benz offers the surround sound system together with SPLITVIEW and a six-disc DVD changer as part of the Entertainment package (standard for the CL 600).

    Interior: carefully selected materials and first-class finish

    In the interior, too, Mercedes-Benz developers and designers perfected the CL paying careful attention to detail. A total of four different kinds of fine wood open up the possibilities for perfectly matched material and colour concepts according to personal taste: apart from light and dark high-gloss burr walnut, there is black ash and brown high-gloss poplar (CL 600). Another particularity: in line with the central importance awarded to the concept of sustainability within the Mercedes-Benz corporate philosophy, the CL employs only European wood from renewable forestry sources. Most of the wood parts are hand-made and matched individually for colour and grain by experienced craftsmen.

    The seat covers of the new CL are of the most exquisite quality. For this luxury model there are two different kinds of leather available which thanks to their low pre-tensioning and consequent wrinkle effect appear supple and comfortable from the very first glance. There is a choice of five tasteful colour combinations for the vehicle interior: black/black, savannah beige/cashmere beige, sahara beige/black, and the novel combinations alpaca grey/basalt grey and aubergine/black.

    The multifunction steering wheel of the CL has also been modified by the Mercedes-Benz designers: the rim and airbag module are lined with soft nappa leather as standard. The new, flatter airbag module also lends a sporty touch to the multifunction steering wheel covered in leather sewn with sophisticated double stitching.

    Apart from this, Mercedes-Benz makes more use of light as a styling element in the vehicle interior. In future customers who specify the optional ambient lighting (standard for the CL 600) have a choice between three lighting moods: solar (amber), neutral (white) and polar (ice-blue).

    Tradition: an exclusive line of ancestors

    The new generation CL continues the great tradition of Mercedes-Benz coupés, which reaches back to the legendary supercharged cars of the 1920s and '30s. Since the 1950s, in particular, the brand with the three-pointed star has produced an uninterrupted series of exclusive two-door cars which combine sophisticated design with trailblazing technology – every model an automotive classic. The W 188 model series 300 S Coupé which entered series production in 1952 marked the beginning. A contemporary report called it the "measure of what it is possible to achieve in automotive engineering".

    This statement has retained its full validity for all subsequent models, right down to the current CL of model series C 216, because the luxury coupés from Mercedes-Benz featured – apart from their timeless design and the highest level of comfort – trailblazing innovations in automotive technology. Thus it was that in 1961 the 220 SE Coupé was the first series-production Mercedes-Benz to be equipped with disc brakes. In 1995 the Electronic Stability Program ESP® celebrated its world premiere in the S 600 Coupé of model series C 140, and in 1999 the Active Body Control suspension system was introduced for the first time in the CL-Class, model series C 215. With the PRE-SAFE® brake a further technological innovation made its debut in a large Mercedes-Benz coupé. In the new CL generation, two new developments, Active Lane Keeping Assist and the Active Blind Spot Assist, will help prevent accidents or reduce their severity.

    The new-generation CL can already be ordered from Mercedes-Benz sales outlets and authorised dealers. The prices:

    • CL 500 BlueEFFICIENCY: 118,346 euros
    • CL 500 4MATIC BlueEFFICIENCY: 123,463 euros
    • CL 600: 162,792 euros

    (all prices include 19% VAT)
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  2. Giannis

    Giannis Global Moderator / Editor Staff Member

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  3. Giannis

    Giannis Global Moderator / Editor Staff Member

    Model range: Luxury and performance

    • Perfect combinations: equipment packages and driver assistance systems
    • CL 600: a masterwork with top-of-the-line equipment
    • Exclusive individuality: the AMG Sports package and designo

    For decades now, the large coupés from Mercedes-Benz have represented motoring refinement of the highest level. Exceptional design, craftsmanship and pioneering technology flow together, blending into a style-generating unity. The history of the great two-door cars bearing the three-pointed star goes back to the large supercharged cars of the 1920s and '30s. The new CL generation continues in this great unbroken tradition of automotive masterworks.

    With targeted design modifications such as the new, more strongly pointed radiator grille, the new front bumper with integrated LED strips for the daytime running lamps and the standard bi-xenon headlamps, the Mercedes developers cultivate the poise and dynamism expressed in the design language of the two-door car in a contemporary manner.

    The high technological level exemplified by Active Body Control (ABC) with crosswind stabilisation sets new standards in driving dynamics and ride comfort. And with safety systems such as the ATTENTION ASSIST drowsiness recognition system, Active Blind Spot Assist, Active Lane Keeping Assist, Adaptive Highbeam Assist and automatic PRE-SAFE® full brake application, the CL takes pole position in the luxury coupé class.

    This is also true of the engine line-up: the entirely re-developed V8 biturbo engine with a displacement of 4.6 litres, 320 kW (435 hp) output, 700 Newton metres torque and spray-guided direct petrol injection in the CL 500 BlueEFFICIENCY achieves top marks in its class in terms of efficiency, with a consumption of only 9.5 litres premium petrol per 100 kilometres in the combined NEDC cycle. This means fuel savings of around 22 percent over the predecessor model. CO2 emissions drop from 288 to 224 grams per kilometre. At the same time, output climbs 35 kW (47 hp) compared with the 5.5-litre naturally aspirated engine in the preceding model.

    The CL 600 is the renowned summit of the drive units, with its 380 kW (517 hp) V12 5.5-litre biturbo engine developing a torque of 830 Newton metres. With the CL 500 BlueEFFICIENCY with BlueDIRECT technology, the customer can choose between a version with rear-wheel drive and one with the 4MATIC all-wheel drive system.

    The high-value appointments and equipment of the luxury coupé obey the highest standards of exclusivity and individuality. An extract from the list of the car's standard equipment:

    • Active Body Control with crosswind stabilisation
    • Adaptive driver and front-passenger airbags
    • Adaptive Highbeam Assist
    • Adaptive brake lights
    • Anti-lock braking system (ABS)
    • 7G-TRONIC PLUS automatic transmission (CL 500 BlueEFFICIENCY)
    • Automatic steering wheel adjustment for entry and exit
    • Bluetooth®, SD, USB, AUX-IN audio and video interface
    • Brake Assist (BAS)
    • COMAND system with CD/DVD player, SD card slot, USB interface and Gracenote® data base
    • DIRECT SELECT gearshift
    • Direct-Steer system
    • ECO start/stop function (CL 500 BlueEFFICIENCY)
    • ESP® with acceleration skid control (ASR)
    • Headlamp Assist
    • Electric parking brake
    • Belt tensioners on all seats
    • Intelligent Light System with country light, motorway mode, enhanced foglamps, active light function and cornering light function
    • Leather upholstery
    • 18-inch light-alloy wheels
    • Memory package for seats, steering wheel and exterior mirrors
    • Metallic paintwork
    • Nappa leather multifunction steering wheel
    • PARKTRONIC with Parking Guidance
    • PRE-SAFE®
    • Rain sensor with two sensitivity levels
    • Tyre pressure loss warning system
    • Tilting/sliding glass sunroof, electric, with PRE-SAFE® function
    • Door power closing
    • Sidebags front and rear
    • Heated front seats
    • LED daytime running lamps integrated in bumper
    • Telephone keypad
    • Cruise control
    • Doorhold function
    • Four-zone automatic climate control
    • Front seats with electric fore/aft and height adjustment with lumbar support and PRE-SAFE® positioning function
    • Tinted, sound-insulating, infrared-reflecting laminated glass all round
    • Windowbags

    Equipment packages: substantial benefits thanks to perfect combinations
    To enable drivers to benefit to the greatest extent from the advanced assistance systems and comfort elements, for the CL Mercedes-Benz offers certain innovations as packages upon request. This guarantees that the systems complement each other perfectly.

    • In the Driving Assistance package Plus Mercedes-Benz mainly combines systems that can actively help to prevent rear-end collisions: the radar-based proximity control system DISTRONIC PLUS, Brake Assist PLUS and the PRE-SAFE® Brake. This equipment package also includes Active Lane Keeping Assist and Active Blind Spot Assist.
    • Mercedes-Benz offers the Navigation package for high-mileage drivers. This includes the COMAND APS multimedia system with 40-gigabyte HDD navigation, 3-D map display, navigation data updates free of charge for a period of three years, LINGUATRONIC voice-operated control, MUSIC REGISTER, Music Search and Speed Limit Assist (standard for the CL 600).
    • An exclusive audio experience and optimum video entertainment for the front passenger are provided by the Front Seat Entertainment package. It includes the SPLITVIEW display, the 6-disc DVD changer and the Harman Kardon® Discrete Logic 7® surround sound system with headphones and remote control (standard for the CL 600).

    The CL 600: the summit of driving refinement

    Mercedes-Benz stylishly underlines the exceptional status of the twelve-cylinder CL 600 with numerous distinguishing features in the exterior and interior. In addition to the model-specific radiator grille with two twin louvres, these include the V12 emblem on the flanks, model-specific, five-spoke 18-inch light-alloy wheels in a bi-colour look and a large range of standard option packages.

    Standard ex factory specifications include:

    • Navigation package
    • Front Seat Entertainment package
    • Reversing camera
    • Convenience Telephony
    • Anti-Theft Protection package

    The front active multicontour seats and the rear seats are upholstered with particularly supple "PASSION" leather, decorated with a special V12 fluting pattern, as is the Alcantara roof liner. Among other things, the upper and lower sections of the dashboard, the door centre panels, rear shelf and ruffled pockets on driver and front passenger backrest are covered in this high-quality leather. Apart from the roof liner, the interior trim of the A and C pillars is also clothed in Alcantara leather. Luxury head restraints at front and rear bearing the V12 emblem also enhance travelling enjoyment. The V12 symbol on the backrests makes reference to the exclusive character of the vehicle. On entry, the V12 emblem lights up in the instrument cluster. Trim elements in fine brown high-gloss poplar wood, chrome-plated door sills and boot sill, together with the standard ambient lighting, round off the serene character of the Mercedes-Benz CL 600.

    designo and designo Selection: individual and exclusive

    For further individualisation, customers can now also choose from a restructured range of designo features for the CL, which further underscore the exclusive hand-finish character of the luxury model. Ten different designo paint finishes can be combined with ten designo aniline leather interiors and four natural leather interiors – with practically no limitations on personal taste. For designo wood trim, customers have a choice between natural-grain maple and natural-grain matt oak. Trim in black piano lacquer and champagne white piano lacquer can also be ordered.

    Two kinds of fine authentic granite trim are available for the CL: labrador blue pearl and Star Galaxy black. These trim elements are made by cutting 0.6 to 0.8 mm thin stone wafers which are then coated with an adhesive layer to ensure that every grain remains exactly where it is. These thin plates are then ground between two rollers. The result is a visually undisturbed, extremely thin stone sheet, pliable thanks to the adhesive layer applied, which enables it to be moulded around narrow edges, too.

    With designo Selection, Mercedes-Benz is offering a special, high-end package of designo features for the CL. Customers can configure their car according to their personal preferences and taste from the different designo aniline leather upholstery, wood trim elements and paint work available. The highlight is designo lettering in solid 18-carat gold on the rear air conditioning unit cover. This is exclusive to the designo Selection. The designo wood/leather steering wheel and the designo roof liner in black nappa leather or Alcantara in cashmere beige, anthracite or alpaca grey round off the refined atmosphere of the car's interior.

    AMG Sports package: CL with a striking sporty character

    The AMG Sports package with AMG bodystyling and AMG light-alloy wheels gives the luxurious two-door car an even more dynamic look. At the front the newly-designed front apron ensures an imposing, muscular appearance. Its distinguishing feature is a tapered air intake with a wider lower edge. The side skirts continue the design of the front bumper, with striking contours that find an echo in the rear apron. The independent rear bumper with a black insert is the perfect finishing touch.

    Further highlights include the 19-inch AMG 5-spoke light-alloy wheels painted in sterling silver. With their broad format 255/40 (front) and 275/40 (rear), not only do they fill the wheel houses perfectly, lending the CL an exceptionally dynamic presence, they also enhance its handling characteristics even more. In addition, silver-colour painted brake callipers with Mercedes-Benz lettering on the front axle wheels emphasise its sporty appearance.

    The CL 500 4MATIC BlueEFFICIENCY with AMG Sports package is fitted with 255/40 R 19 tyres on both front and rear axles. Optionally, 20-inch AMG light-alloy wheels in twin-spoke design with tyre sizes 255/35 and 275/35 are also available. Wood trim and the wood/leather steering wheel in black ash give the high-quality vehicle interior a very special feel. The AMG Sports package also includes sports pedals in brushed stainless steel with black rubber studs and velour floor mats with AMG lettering.
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  4. Giannis

    Giannis Global Moderator / Editor Staff Member

    Drive system: New dimension of efficiency

    • About 22 percent lower fuel consumption: CL 500 BlueEFFICIENCY
    • BlueDIRECT technology with third-generation direct petrol injection
    • Multi-spark ignition: up to four ignition sparks per millisecond
    • Energy management: on-demand control of the engine accessories
    • ECO start/stop function: save fuel when stopped at traffic lights

    Under the bonnet of the new-generation CL, the most powerful Mercedes-Benz engines do service. The newly developed V8 biturbo engine in the CL 500 BlueEFFICIENCY opens up a new dimension of efficiency in the luxury class through the use of the innovative BlueDIRECT technology, the heart of which is the third-generation spray-guided direct petrol injection system featuring multiple injection. In the CL 600 the proven V12 biturbo engine with 5.5 litres displacement ensures refined and highly enjoyable travel.

    CL 500 BlueEFFICIENCY: around 22 percent lower fuel consumption

    The new V8 biturbo engine in the CL 500 BlueEFFICIENCY und CL 500 4MATIC BlueEFFICIENCY produces 320 kW (435 hp) with 15 percent less displacement (4663 instead of 5461 cc). It is around 12 percent more powerful than its naturally aspirated predecessor, which had an output of 285 kW (388 hp). Whereas the latter engine got a combined NEDC consumption of 12.3 litres of premium petrol per 100 kilometres in the CL 500, the successor aboard the Mercedes coupé is content with 9.5 litres of fuel. This figure, outstanding in the luxury segment, means fuel savings of 2.8 litres or around 22 percent. CO2 emissions also sink by around 22 percent from 288 grams per kilometre to 224 grams per kilometre – an excellent figure in this output category.

    The NEDC fuel consumption of the all-wheel drive variant CL 500 4MATIC BlueEFFICIENCY is 9.9 litres per 100 kilometres (237 g CO2/km). This is 18 percent less than for the preceding model.

    At the same time, maximum torque rises from 530 Newton metres to 700 Newton metres – a 32 percent increase. The new V8 also attains top figures for specific output with 68.6 kW and 150 Newton metres per litre displacement.

    The maximum torque already is available from 1800 rpm, creating the precondition for an effortlessly superior display of power. This combines with a smoothness and quietness which is exceptional even for an eight-cylinder. The acceleration which the biturbo engine permits is also impressive: CL 500 BlueEFFICIENCY and CL 500 4MATIC BlueEFFICIENCY sprint from zero to 100 km/h in 4.9 seconds (predecessor: 5.4 seconds). Even more impressive is the figure for an 80 to 120 km/h sprint with kickdown – particularly important for safe overtaking on country roads. The CL 500 BlueEFFICIENCY needs 2.7 seconds for this (previously 3.1 seconds) and thus satisfies the condition for an especially relaxed and refined driving experience of a sporty character.

    In the sum of its qualities the new BlueDIRECT V8 engine is unique in the luxury segment and plays in a new league. It obtains best values for fuel consumption, emissions and performance.

    A hard-charging doubles team: two turbochargers breathe the V8

    In the new V8, Mercedes-Benz engineers achieved a high output from a lower displacement primarily by using one turbocharger for each bank of cylinders. The intake air is forced into the eight combustion chambers at an overpressure of up to 0.9 bar, with the turbine blades rotating at up to 190,000 rpm. The turbochargers and their hot gas ducting are accommodated on the outsides of the cylinder heads. This enables the intercooler module with its air/water intercooler and charge-air distributor to be located inside the V of the engine – a solution which Mercedes-Benz engineers found to be advantageous following a long series of tests. This is confirmed by the output and fuel consumption figures achieved in practice.

    The Mercedes-Benz engine designers configured the turbochargers to provide high torque even at low engine speeds. Compared to the previous engine, the result is an increase in torque at 2000 rpm by more than 45 percent. An outstanding 700 Nm is available between 1600 and 4750 rpm. The driver therefore perceives no turbo lag, but experiences the same pleasant and effortless performance from the new V8 as that delivered by a mighty, naturally aspirated 7-litre engine.

    The engine is based on a diecast aluminium crankcase with aluminium/silicon cylinder liners. The developers adopted the basic and connecting rod journal diameters from the preceding engine, while raising the piston compression height for load reasons by just about 4 millimetres. By reducing the lift and shortening the connecting rod by two millimetres, it was possible to retain the interior height of the crankcase. Showing the high efficiency of the turbocharged V8, which is configured for premium petrol (RON 95), the compression ratio of 10.5:1 remains unchanged versus the naturally aspirated preceding engine.

    Key figures for the new V8 engine:


    Great savings potential: innovative technology makes V8 engine fit for the future

    The power plant of the CL 500 BlueEFFICIENCY is the representative of a new generation of BlueDIRECT V8 and V6 engines. The previous engine of the CL 500 provides the technical basis for the eight-cylinder. But almost all details were newly developed or intensively revised with the goal of fuel savings and high performance and smoothness. Crankcase, pistons and cylinder head are made of aluminium. Crankshaft, connecting rods and valves are manufactured from a special forged steel. With the new engine Mercedes-Benz clearly shows that uncompromisingly improved internal combustion engines still have great potential. The BlueDIRECT technology package of the new V8 units from Mercedes-Benz includes new developments which are unique in their combination:

    • The third generation spray-guided direct petrol injection system with piezo injectors, in combination with multi-spark ignition, opens up further opportunities for optimising consumption through a homogeneous combustion process.
    • In conjunction with the ECO start/stop function, shift point adjustment and specific friction-reducing measures, improvements in day-to-day fuel consumption by more than 20 percent are possible.
    • The Mercedes designers have selectively reduced the power consumption of engine accessories. Among other things an optimised water pump with second-generation thermal management, a demand-controlled oil pump, a volume-controlled high-pressure fuel pump and an intelligent alternator management system find use.

    With lightweight construction techniques and detailed improvements the Mercedes designers have also reduced in-engine friction considerably compared to the previous engine.

    High precision: third generation spray-guided direct petrol injection

    Spray-guided direct petrol injection, which Mercedes-Benz was the first car manufacturer to introduce in series production, in 2006, has been developed further by the Mercedes-Benz engine designers as a third-generation system in the BlueDIRECT technology package. The system pressure is maximum 180 bar in the V8, the pressure being variably optimised according to the engine's characteristic map. Completely newly developed piezo-electric injectors allow up to five injections per intake stroke for the best possible mixture formation.

    The crystalline structure of the piezo-ceramic changes in microseconds under an electric voltage, and with a precision of just a few thousandths of a millimetre. The central component of a piezo-electric injector is the piezo-stack directly arranged in the high-pressure area. It controls the metering needle directly. With a response time of just 0.1 milliseconds, the fuel injection can be very sensitively and precisely adjusted to the current load and engine speed, with a beneficial effect on emissions, fuel consumption and combustion noise.

    The multiple injections of smallest fuel quantities made possible by the piezo injection technique have been taken advantage of by the Mercedes-Benz engineers to control a larger useful engine characteristic map with the efficient lean-burn combustion method and to exploit the new "homogeneous split" (HSP) operating mode for the new BlueDIRECT V8 biturbo engine. In this homogeneous combustion process, more than 95 percent of the quantity is injected once or several times during the intake stroke. In addition, a very small ignition-supporting injection takes place to stabilise combustion. This is done in difficult combustion conditions.

    Multi-spark ignition: best possible ignition, as need requires

    The third-generation direct injection system also features rapid multi-spark ignition (MSI). Following the first spark discharge and a brief combustion period, the coil is rapidly recharged and a further spark is discharged. The MSI system enables up to four sparks to be discharged in rapid succession within one millisecond, creating a plasma with a larger spatial expansion than conventional ignition. Controlling this rapid multi-spark ignition enables both the time lapse before the next spark and the combustion duration for the relevant operating point to be optimally adjusted. This provides scope for optimising the centre of combustion and improving residual gas compatibility, especially during stratified charge operation. Fuel consumption can be reduced by roughly two percent in this way.

    Depending on the driving cycle, fuel savings of up to four percent are possible alone by the use of piezo-electric injection technology in combination with multi-spark ignition.

    Less is more: low-friction unit

    The Mercedes-Benz engine designers paid particular attention to reduced
    in-engine friction in the new BlueDIRECT V8 power plant. They achieved their objective primarily by a reduction in flow through the oil and water pumps, low-friction pistons, piston rings and cylinder walls, plus a new thermal management system and a new chain drive.

    Intelligent design: cylinder head with new camshaft adjuster

    In its basic architecture, i.e. the valve angle, valve disc diameter, valve position, cam follower valve control and combustion chamber configuration, the cylinder head of the new V8 engine is identical to that of the previous engines. Mercedes-Benz engineers have, however, modified the variable, hydraulic vane-type camshaft adjusters for the intake and exhaust sides. These now have a larger adjustment range of 40 degrees with reference to the crankshaft. They were also able to improve the functionality, achieving a 35-percent greater adjustment speed and adjustability at an oil pressure as low as 0.4 bar. Despite the better performance, this new development excels with significantly smaller dimensions and low weight. For this reason the installation space on the longitudinal and vertical axes of the engine was able to be reduced by around 15 millimetres.

    The extreme compactness of the camshaft adjusters was achieved by the new, two-stage chain drive. This drives two secondary chains – one per cylinder bank – via a primary chain and an intermediate gear. All three chains can be individually adjusted via a chain tensioner. This results in low tensioning forces and low chain dynamics, ensuring consistent timing and outstanding acoustic properties, with friction reduced even further. In short, the new chain drive is compact and ensures low-noise operation.

    Efficient: controlled oil pump with two pressure stages

    A fourth chain drives a likewise completely newly developed, variable vane-type oil pump. It operates with two pressure stages, depending on the characteristic map. At low engine speeds and loads the pump runs at a low pressure of two bar. At this time the oil-spray nozzles for piston cooling are switched off. The high-pressure stage is activated at the upper load and engine speed levels. Thanks to this control concept, depending on engine load and engine speed the lubrication and cooling points of the engine can be supplied with significantly lower drive energy than would be possible with an uncontrolled pump.

    Intelligent: new coolant ducting and 3-phase thermal management

    The coolant ducting in the cylinder head is also completely new. The water mantle is of two-piece construction to improve flow. This leads to specific increases in flow speeds and heat dissipation at certain points, accompanied by a rigorous reduction in pressure throughout the coolant circuit. This has made it possible to reduce the power output of the water pump despite an increased engine output.

    As it warms up, the flow of coolant is regulated by a 3-phase thermal management system so that it rapidly reaches normal operating temperature. Initially the coolant remains at rest in the engine. It then circulates in the engine circuit, but without the radiator. When a temperature of 105 degrees Celsius has been reached in normal operation (87 degrees Celsius under high load), the vehicle's radiator is included in the circuit. The water supply to the interior heating system is separately controllable.

    The Mercedes designers also managed to cut component weights by the concerted replacement of aluminium and steel by plastics in components like the thermostat, belt pulley, impeller, heater valve and hydraulic lines.

    Fuel-saving: ECO start/stop function with direct-start

    To reduce the fuel consumption of the V8 engine, the CL 500 BlueEFFICIENCY and the CL 500 4MATIC BlueEFFICIENCY get the ECO start/stop function which shuts off the engine when the car stops, for example at traffic lights. The system is a part of the BlueEFFICIENCY package of the V8 variants and is activated as soon as the car comes to a full stop with the driver depressing the brake pedal. When travel is resumed, the engine restarts immediately and almost imperceptibly as soon as the driver takes his foot off the brake pedal or presses the accelerator. Thanks to intelligent control, the heating and entertainment systems remain operating during the stop phase for maximum comfort, as does the automatic climate control. The ECO start/stop function does not switch the engine off if the operating temperature required for proper emission control or the interior temperature desired by the driver have not yet been attained.

    In the two dynamic transmission modes "S" (Sport) and "M" (Manual) the ECO start/stop function is always deactivated. But the driver can also actively switch the system off. A yellow "ECO" symbol signals to the driver that though the ECO start/stop function is switched on, one of the mentioned criteria temporarily prevents the stopping of the engine. When all necessary conditions are met, the colour of the "ECO" symbol changes to green.

    The start/stop system of the CL 500 BlueEFFICIENCY operates with starter-supported direct-start. This means that when the engine is switched off, the attitude of the crankshaft is registered by a new crankshaft sensor so that the engine control unit knows the positions of the individual cylinders. On restarting, it can then select the cylinder that is in the most suitable position for first ignition. After the starter has briefly turned over the engine, reliable injection, ignition and combustion is immediately possible in the ideally positioned cylinder.

    Energy recuperation: current from braking energy

    Efficient alternator management is also a part of the innovative BlueEFFICIENCY package of the CL 500 BlueEFFICIENCY and the CL 500 4MATIC BlueEFFICIENCY. When the battery is charged to more than 80 percent, the alternator is governed to take load off the engine. The energy required in this operating state is supplied by the battery. If the driver removes his foot from the accelerator pedal or applies the brakes in overrun mode, kinetic energy is recovered and fed to the battery. The experts speak of recuperation. In certain situations, for example during acceleration, the alternator is switched to no-load – that saves fuel.

    Test marathon: more than seven million kilometres under the harshest conditions

    The new Mercedes-Benz BlueDIRECT V8 biturbo engines demonstrated their unlimited suitability for everyday use in extensive tests under most severe conditions. The engine and their accessories spent a total of 52,000 hours on the test bench, including 27,000 hours of endurance runs. The wide-ranging programme comprised simulations of all imaginable driving situations and operating states such as hot and cold starts, stop-and-go traffic and full-throttle operation. Parallel to this the
    Mercedes-Benz developers undertook strenuous tests in every climatic zone on earth – in the winter of Northern Europe and the extreme heat of Death Valley (USA), in the thin air of alpine regions and in tropical jungles. Fast laps on the high-speed ovals of Nardo (Italy) and Papenburg (Germany) as well as stop-and-go driving in heavy city traffic completed the marathon testing. On balance, the test vehicles covered more than seven million kilometres under the most adverse conditions at maximum loads with the new V8 engine.

    CL 600: high-performance engine with twin turbochargers

    The flagship model remains the CL 600 with its 380 kW (517 hp) twelve-cylinder biturbo engine, which accelerates the luxury coupé from a standstill to 100 km/h in impressive 4.6 seconds and in the new generation of the luxury coupé now also complies with the Euro 5 emissions control standard. Maximum torque is 830 Newton metres at 1800 rpm, which makes the 5.5-litre engine one of the world's most powerful series-production car engines. The V12 combines its impressive performance potential with exemplary smoothness and outstanding quiet running – the best possible preconditions for refined and highly enjoyable travel.

    The crankcase of the twelve-cylinder engine is made from diecast aluminium, while diecast magnesium is used for the cylinder-head covers. Fracture-split or "cracked" conrods made from high-strength forged-steel alloy, pistons made from a high-quality aluminium alloy, hollow camshafts of induction-hardened forged steel, a weight-optimised forged-steel crankshaft and a diecast aluminium sump feature among the other lightweight components of the engine that were made possible by innovative material technologies.

    On both sides, the turbines of the two turbochargers are integrated into the exhaust manifolds to save space, and are therefore in the best position for high efficiency. The compressed air flows through two close-coupled water intercoolers on the cylinder head covers. Depending on the engine load the air is cooled by up to 100 degrees Celsius, achieving just the right temperature and density for the combustion process.

    The high-performance coupés CL 63 AMG with 400 kW (544 hp) V8 biturbo engine (5.5 litres displacement) and CL 65 AMG with 463 kW (630 hp) twelve-cylinder (6 litres displacement) are products of Mercedes-AMG. As option, for the CL 63 AMG the AMG Performance package can be ordered, in conjunction with which the output is increased to 420 kW (571 hp).

    Transmission: solutions for maximum driving pleasure and low fuel consumption

    As standard the eight-cylinder engine is combined with the 7G-TRONIC PLUS seven-speed automatic transmission, which has been further improved in detail, while Mercedes-Benz combines the V12 engine of the CL 600 with a five-speed automatic transmission because of the extremely high torque which is already reached at low engine speeds. The DIRECT-SELECT lever on the steering column enables the driver to select "P", "N", "R" and "D" by nudging the selector. The operating commands are transferred purely electronically, by wire.

    In addition, with a switch on the centre console the driver can choose between the driving modes "Sport" (S), "Economy" (E) and "Manual" (M), which alter the transmission characteristics.

    • Economy: the automatic transmission changes gears at low revs; in this switch position the CL starts off in second gear. The ECO program is always active after the engine starts and supplants the previous "Comfort" mode.
    • Sport: the automatic transmission makes the most of the engines' speed range when changing gears. At the same time the accelerator characteristics are changed so that the engine responds more spontaneously to the driver's pressure on the accelerator.
    • Manual: the automatic transmission can be operated manually by steering wheel buttons. The shifting times are distinctly shorter even compared with the "Sport" mode.

    Selection of the transmission mode is independent of the spring/damper setting of the suspension so that the driver is freer to determine the overall personality of the luxury coupé.

    All in the mood for efficiency: the new 7G-TRONIC PLUS

    The 7G-TRONIC seven-speed automatic transmission was improved in detail by the Mercedes engineers. The aim was to further reduce converter slip in the connection with the engine and thus optimise efficiency. In addition, the much increased torque of the V8 biturbo engine in the CL 500 BlueEFFICIENCY raised new demands on the absorption of cyclic irregularities and vibrations in the transmission. The Mercedes-Benz developers achieved this aim in the new 7G-TRONIC PLUSwith a new torsional vibration damper among other things. It is designed as a double turbo-damper and additionally fitted with a centrifugal pendulum which shifts the mass centre of gravity as a function of engine speed and enables comfortable vehicle operation even at lower engine speeds. Moreover, the optimal damping already makes a distinct reduction in the slip of the torque converter lockup clutch possible at low loads. The result: in ECO mode the engine speed could be reduced, contributing greatly to cut fuel consumption. Plus, it ensures an even quicker response to accelerator commands.

    A new hydraulic circuit and optimised torque converter characteristics also help to improve efficiency and drive-away performance. As further consumption-cutting measure a new lower-viscosity automatic transmission fluid (ATF) is used which has a longer life but the same cooling performance. In future, the CL 500 BlueEFFICIENCY only needs a transmission fluid change every 125,000 kilometres.

    The optimised electrohydraulic control unit of the transmission and new reduced-friction materials in various parts of the transmission in combination with optimised software result in improved shifting comfort. Owing to a separate ATF pump the 7G-TRONIC PLUS also can feature a start/stop function for the first time. This pump ensures readiness to move off when the fixed-displacement oil pump is not working because the engine is shut off.
    • Like Like x 8
  5. Merc1

    Merc1 Well-Known Member Contributing Member

    Mercedes-Benz at its best.

  6. Tarek

    Tarek Well-Known Member

    CL65 AMG..there's no better luxury hyper coupe.:cool::D
  7. tennmb

    tennmb Well-Known Member

    i just don't get the face lift. I thought the front fender arch was best done in the CL. Much more so than in the S. In fact I wish they had just mated the CL front end onto the S for the facelifted S.. The odd kink in the headlamps just doesn't do anything. The original headlamp was simple and classy.
    I guess the textures in the hood are OK, although I'd like to see them more committed, and run the full length of the hood.

    When reviewing the FL I just find myself saying, "so what?" I think a revised wheel, taillamp, LED headlamp, and front bumper would have done just as much, and cost a whole lot less.

    The back of the CL has that trim, sleak, fit look, and the front looks like a bloated whale. I thought the original front arches cut some of the weight (look) out of the front end.
  8. NarutoRamen

    NarutoRamen Well-Known Member

    This truly is a perfect automobile. A CL with AMG kit is just perfect, and with the awesome engine choices, you can't go wrong.
  9. bmer

    bmer Well-Known Member

    I actually think the pre-facelift CL looks better. I don't like the new kink on the headlights or the LEDs that make them look busy design-wise. The new reverse lights are an unnecessary addition as well.
  10. Osnabrueck

    Osnabrueck Well-Known Member

    New "generation" eh... Got to love press releases.

    I don't understand the de-fanging of the front fender at all - especially when the rear fender hasn't really been finessed to give it any new context... I think the decision had more to do with the maximizing the sheer amount of what they could change while still keeping on-budget.

    It's worth noting that the new CLS - which is 'up to date in thinking' - has an aggressive, carved front-fender - Not a 'Nu Chunk' as the PFL CL, but it seems like just smoothing the lines would have made much more sense than keeping it in the rear and ditching it up front.

    But whatever... I'd drive it.
    • Like Like x 2
  11. far2000

    far2000 Well-Known Member

    looks a bit decent now in STD triom, but still an expensive piece of shit without the AMG Pack... which is sad... any car would look good with AMG Pack.....Very lazzy F/L.,...
  12. jackywhatever

    jackywhatever Member

    I really don't care about official press release, too long with a lot BS and negative stuff got cutoff. I am longing to see a test drive article of a CL with the V8.
  13. Merc1

    Merc1 Well-Known Member Contributing Member

  14. K-A

    K-A Banned

    Can't tell how much I like the F.L yet. I know I don't dislike it, but I just dunno if or how much I like the changes. Seems like some pretty extensive work, for almost nothing. :t-hands:

    Also, the beloved "Star face" look is on so many "cheaper" M-B models, it doesn't impact me like it used to, on the CL. With the baby-Benz C-Class (and its sister Coupe to be), Minivan-y R-Class, SUV's, etc. etc. sharing the exact same grille, it makes it less special on the CL. That, and they seem to keep the CL's grille/face very similar to the current updates to the mentioned models, as well.

    Never thought I'd find it more interesting and "rare" to see M-B's on the road with the Luxury/Sedan grille. Keeps me happy on a personal level at least.
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