The German aftermarket specialists at Unicate recently unveiled their new upgrade program for the facelifted version of the Mercedes CL63 AMG.
While no one would question the car’s power, with536-horsepower output, power tuner, Unicate thought it could give more, much more. Unicate remapped the CL63 AMG’s ECU and added a new Apocalypse sound exhaust system, resulting in over 600 horsepower on hand.
The engine updates should enable the CL63 to accelerate from 0-100 km/h in under 4.5 seconds, long before it hits its electronically-limited top speed of 250 km/h (155 mph).
Making it stand out from the crown is low ride, thanks to a suspension lowering module that Unicate added Also added to the CL63 AMG is a sports exhaust system, with a carbon fiber rear spoiler, 21-inch AMG wheels with spacers and a few other minor modifications..
Enjoy the large photo gallery below and remember that all photos can be enlarged for a closer view.
Bavarian tuner Väth Automobiltechnik from Hösbach,Germany released their program for the Mercedes-Benz CL63 AMG V8 BITURBO, C216, today.
A V63S tuning kit featuring an electronic engine management system is the source for the increase in power as well as the increased maximum speed. The improvements are seen in the following data – 463 kW / 630 HP, 930 Nm maximum torque, and an acceleration from 0 to 62 mph in 4.3 seconds and a top speed of 186 mph. For the eco conscious, the emission level has been reduced by a device made of stainless steel and Sport-Kat.
In an effort by Väth to optimize the brakes, the tubes of fuel inlet are made of curved steel in which the brake fluid Castrol SRF circulates.. Väth also offers wheels sizing 9×20 inch in the front and 10.5×20 inch in the rear with 255/35ZR20 tires or 275/35ZR20. A factory made ABC (Active-Body-Control) chassis is located deeper and is more comfortable in the first and second gear of the damper and in third gear, they are tightly regulated for improved agility.
Last but not least, the Mercedes-Benz CL 63 AMG V8 Biturbo features a carbon fiber radiator cover, carbon fiber mirrors caps and the rear diffuser, as well as a trunk spoiler that can be ordered in carbon fiber. For the interior, Väth added a sports steering wheel that is combined with either leather, carbon or precious wood trim.
German tuner BRABUS is known for offering the most extensive engine tuning program for Mercedes-Benz vehicles and now BRABUS is introducing performance kits for the new Mercedes-Benz V8 biturbo engines that are found on the latest S and CL models (US: S550 and CL550) and the S63 and CL63 AMG models. Depending on the model and the level of tuning, the kits boost power output to up to 620 hp (610 bhp) / 455 kW and peak torque to 1,000 Nm (737 lb-ft). In addition, there are aerodynamic-enhancement components made from exposed carbon fiber, custom-tailored tire/wheel combinations with diameters of up to 21 inches, and exclusive interior options. All components are backed by the one-of-a-kind BRABUS Tuning Warranty® of three years, up to 100,000 kilometers/62,000 miles .
The BRABUS engine specialists have developed two performance kits for each of the new eight-cylinder biturbo engines. BRABUS recommends fully synthetic ARAL high-performance motor oil for all engines.
For the S500 and CL500 models, BRABUS offers the BRABUS B50 – 490 PowerXtra CGI performance kits that sell for EUR 4,900 MSRP. The BRABUS PowerXtra module is a plug-and-play device that is integrated into the engine electronics. After the installation the 4.7-liter (287 cu. in.) eight-cylinder biturbo engine produces a powerful 490 hp (482 bhp) / 360 kW, up from standard 435 hp (429 bhp) / 320 kW. Peak torque grows to 780 Nm (575 lb-ft).
The BRABUS B50 – 520 PowerXtra CGI performance kit, available for EUR 5,900 MSRP, results in a power increase by 85 horsepower for both 500 models. In addition to the PowerXtra module, this version includes a supplementary intercooler. Equipped with this kit, both sedan and coupe reach a top speed of 300 km/h (188 mph) in combination with the BRABUS Vmax Unit. Rated power output is 520 hp (512 bhp) / 382 kW with a peak torque of 820 Nm (604 lb-ft).
In addition to the auxiliary control unit for the engine electronics, the two BRABUS power upgrades for the S 63 and CL 63 models also include a water-to-air intercooler powered by an electric auxiliary pump. The lower charge air temperature in both cases benefits power yield and longevity even under extreme operating conditions.
For the S 63 and CL 63 models not equipped with performance package BRABUS offers the BRABUS B63 – 584 PowerXtra CGI performance kit for EUR 5,900 MSRP. It bumps power output by 40 hp (39 bhp) / 29.4 kW.
For all 63-series models equipped with performance package BRABUS offers the BRABUS B63 – 620 PowerXtra CGI version, which also costs EUR 5,900 MSRP. As the name indicates, after the conversion the biturbo engine produces 620 hp (610 bhp) / 455 kW at just 5,500 rpm. Simultaneously peak torque grows from 900 to 1,000 Nm (663 to 737 lb-ft), available between 2,250 and 3,750 rpm.
In the S63 and CL63 models with BRABUS B63 – 620 PowerXtra CGI tuning sprint time from 0 to 100 km/h (0-62 mph) is shortened to 4.3 seconds. In combination with the integrated BRABUS V/max Unit, top speed increases to up to 320 km/h (200 mph).
The ideal complement to the tuning of the 5.5-liter engine is the BRABUS sport exhaust system with exhaust flap control. At the push of a button on the steering wheel the driver can choose whether to enjoy the V8 sound in the quiet and unobtrusive ‘Coming Home’ or in the markedly throaty ‘Sport’ mode. The fully stainless-steel exhaust system features two ceramic-coated tailpipes with striking design that add some visual thrills as well.
To transfer the increased power to the road with minimum slip, BRABUS offers a limited-slip differential with a locking rate of up to 40 percent for the Mercedes S63 and CL63 models.
For even better directional stability at these extremely high speeds, the BRABUS designers went into the wind tunnel to develop appealing and functional aerodynamic-enhancement components for the body kit of the S 63 AMG. The components are manufactured from exposed carbon fiber.
The BRABUS front spoiler gives the production front apron a visual upgrade and reduces lift on the front axle. The more striking front is rounded out with carbon-fiber moldings for the gills in the sides of the front bumper. BRABUS aluminum sport fenders lend the car a decidedly dynamic appearance.
The BRABUS carbon-fiber diffuser with integrated reflector and the carbon-fiber rear spoiler reduce lift on the rear axle.
Naturally BRABUS also offers custom-tailored BRABUS Monoblock alloy wheels with diameters ranging from 19 to 21 inches for all Mercedes S- and CL-Class models. The wheels are mounted with Pirelli or YOKOHAMA high-performance tires.
Upon customer request BRABUS also refines the interiors of Mercedes-Benz S-Class sedans and CL coupes to suit the owners’ personal tastes.
New design and new high-tech drive system: the Mercedes-Benz CL 63 AMG is to feature a new cutting-edge look as well as state-of-the-art technology. The stylish visual modifications will be accompanied by a completely newly developed powertrain. The AMG 5.5-litre V8 biturbo engine with a peak output of up to 420 kW (571 hp) and a torque of up to 900 Nm, in combination with the unique AMG SPEEDSHIFT MCT 7-speed sports transmission, contributes towards a considerable increase in driving dynamics, while at the same time guaranteeing a respectable reduction in consumption and emissions. With a fuel consumption of 10.5 litres per 100 kilometres (NEDC combined), the new high-performance coupé not only undercuts its direct competitors – it is also 27 percent more economical in terms of its fuel consumption than the previous model with naturally aspirated V8 engine.
The new CL 63 AMG marks the start of a new chapter in the “AMG Performance 2015” drive strategy: Mercedes-AMG is continuing this impressive story and is meeting its promise to continuously reduce both the fuel consumption and emissions of new models with the new engine/transmission combination – while reaching new heights with the central AMG brand value of “performance”.
According to Ola Källenius, head of Mercedes-AMG GmbH: “We are heading into a new era with the CL 63 AMG: for the first time we have combined spray-guided direct petrol injection with biturbocharging and the stop/start system. Together with the AMG SPEEDSHIFT MCT 7-speed sports transmission, we have reduced both fuel consumption and emissions significantly – while at the same time increasing output and torque.”
Together with the AMG SPEEDSHIFT MCT 7-speed sports transmission, the newAMG 5.5-litre V8 biturbo engine will play a significant role in the Mercedes-AMG model strategy over the coming year. The new engine/transmission combination marks a further milestone in the successful history of Mercedes-AMG, which began back in 1967.
Direct petrol injection and twin turbocharging
Designated internally as the M157, the new V8 engine is a prime example of efficiency and features a whole host of impressive technological highlights: for the first time Mercedes-AMG is taking advantage of direct petrol injection with spray-guided combustion and piezo injectors. This technology enables improved fuel economy thanks to higher thermodynamic efficiency, which in turns leads to lower exhaust emissions. AMG has combined the spray-guided combustion with biturbocharging. Other highlights of the innovative, original eight-cylinder engine from Affalterbach include full aluminium crankcase, four-valve technology with variable intake valve timing, air/water charge air cooling, generator management and also standard start/stop function. Compared with the AMG 6.3-litre naturally aspirated V8 engine with a displacement of 6208 cc, the new AMG 5.5-litre V8 biturbo engine achieves all this with a displacement of 5461 cc.
This high-tech package leads to a high output and torque yield, together with fuel consumption figures that are unrivalled in the competitive lineup. The AMG 5.5‑litre V8 biturbo engine develops a peak output of 400 kW (544 hp) and maximum torque of 800 Nm. In conjunction with the AMG Performance package these figures are increased to 420 kW (571 hp) and 900 Nm. A look at the performance diagrams shows that no other engine in this output class achieves the figures delivered by the new AMG biturbo. The major difference between the two performance classes is an increase in the maximum charge pressure from 1.0 to 1.3 bar. In addition, the engine cover of the CL 63 AMG with the AMG Performance package comes with high-quality carbon-fibre applications.
Quantum leap: fuel consumption reduced by 25 percent
With an NEDC fuel consumption of 10.5 litres per 100 kilometres, the new CL 63 AMG is 3.9 litres more economical than the previous model powered by the naturally aspirated AMG 6.3-litre V8 – despite an increase in maximum power of 14 kW(19 hp) and 34 kW (46 hp) respectively, and in torque of 170 and 270 Nm. Engine specialists consider this achieved fuel saving of more than 25 percent to be nothing less than a quantum leap. CO2 emissions have likewise been significantly reduced: at 244 grams per kilometre, the figure is 29 percent lower than for the previous model. Both performance variants have identical fuel consumption and CO2 figures.
With figures like these, the new CL 63 AMG is not only considerably better than all its competitors, but also more fuel-efficient than much less powerful cars in this segment.
Sports car-level performance
At the same time the CL 63 AMG delivers superior performance at sports car level: the Coupé accelerates from zero to 100 km/h in 4.5 seconds, and has an electronically limited top speed of 250 km/h. The 100 km/h mark is reached in just 4.4 seconds with the AMG Performance package, with the top speed increased to an electronically limited 300 km/h.
It is not only the unrivalled torque delivery of this turbocharged eight-cylinder that makes the heart beat faster, as the agile responsiveness with no irritating charger delay also leads to an effortlessness and dynamism previously unknown in this output class. All perfectly matched by the characteristic and powerful, sonorous engine note. Moreover, this AMG high-performance engine naturally meets all the requirements with respect to smooth, quiet running and the comfort on long journeys that is to be expected of a Mercedes.
Key data at a glance:
| CL 63 AMG | |
| Displacement | 5461 cc |
| Bore x stroke | 98.0 x 90.5 mm |
| Compression ratio | 10.0:1 |
| Output | 400 kW (544 hp) at 5500 rpm 420 kW (571 hp) at 5500 rpm* |
| Max. torque | 800 Nm at 2000 – 4500 rpm 900 Nm at 2250 – 3750 rpm* at 2500 – 3750 rpm* |
| Engine weight (dry) | 204 kg |
| Power/weight ratio | 0.41 kg/hp 0.39 kg/hp* |
| Fuel consumption NEDC combined | 10.5 l/100 km |
| CO2 emissions | 244 g/km |
| Acceleration 0 – 100 km/h | 4.5 s 4.4 s* |
| Top speed** | 250 km/h 300 km/h* |
* with AMG Performance package; ** electronically limited
AMG SPEEDSHIFT MCT 7-speed sports transmission
Power is transferred by the AMG SPEEDSHIFT MCT 7-speed sports transmission used exclusively by AMG. It combines high emotional appeal with outstanding driving dynamics and a high level of efficiency. A wet start-up clutch replaces a conventional torque converter, and helps to save fuel. The exemplary fuel economy is also in large measure due to the standard stop/start function. This system is active in the transmission’s Controlled Efficiency (“C”) mode, and switches the eight-cylinder engine off when the car comes to a stop. In “C” mode the coupé always starts off in second gear, and the transmission shifts to the next, higher gears at a decidedly early stage. With its high torque at low engine speeds, the V8 engine encourages a smooth, effortless driving style.
The eight-cylinder biturbo engine also features a generator management system: whenever the engine is on the overrun or when braking, kinetic energy is used to charge the battery rather than being wasted as heat in the usual way. In all other operating modes a combination of onboard network and generator management
enables the generator to be kept at a low voltage. This reduces the load on the engine and makes for fuel savings of around 0.15 litre per 100 kilometres according to the NEDC standard, and up to 0.2 litre per 100 km in city traffic with its frequent overrun and braking phases.
Engine production – tradition of hand-built excellence
Like all other AMG engines, the new eight-cylinder biturbo is assembled by hand in the AMG engine shop taken into commission in 2002. Highly-qualified technicians assemble the M157 according to the “one man, one engine” philosophy, maintaining the very strictest quality standards. This painstaking care is attested to by the signature on the characteristic AMG engine plate.
New AMG triple-spoke light-alloy wheels
In visual terms, the new CL 63 AMG has an even more athletic, confident appearance. The bonnet, headlamps, radiator grille, bicolour tail lamps and the newly designed AMG bodystyling all add more dynamism. The “V8 Biturbo” lettering on the mudguards points to the new powertrain. Also featuring a new look are theAMG triple-spoke light-alloy wheels, painted in titanium grey and with a high-sheen finish, and fitted with 255/40 and 275/40 R 19 tyres. New in the interior are the AMG sports steering wheel with silver-coloured aluminium shift paddles and specially shaped grip area covered with perforated nappa leather, as well as the “AMG V8 Biturbo” start screen in the AMG instrument cluster. As a new optional extra, SPLITVIEW is also available for the COMAND multimedia system.
Direct-Steer system, Torque Vectoring Brake and crosswind stabilisation
With immediate effect, standard equipment on the CL 63 AMG now includes the Direct-Steer system, Torque Vectoring Brake and crosswind stabilisation. With its variable ratio depending on steering angle, the Direct-Steer system helps to ensure a more direct response when cornering, and therefore more responsive handling – in brief: enhanced driving pleasure at the wheel of the Mercedes-AMG CL-Class. Thanks to brief direct application of the brakes on the vehicle’s inner rear wheel when cornering, the Torque Vectoring Brake, meanwhile, helps to ensure that the V8 coupé corners precisely and under control at all times. The Torque Vectoring Brake is an additional feature of the Electronic Stability Program ESP® and not only noticeably improves responsiveness but also active handling safety in critical conditions.
The AMG sports suspension based on Active Body Control (ABC) now also provides crosswind stabilisation as an additional function: thanks to this feature, influences caused by crosswinds are compensated for, or – in the case of strong gusts – reduced to a minimum. ABC compensates against the effect of crosswinds by adjusting the wheel load distribution within milliseconds, using the yaw-rate and lateral acceleration sensors of the ESP®.
Based on the ADAPTIVE BRAKE system with large compound brake discs all round, the AMG high-performance braking system continues to set the benchmark for stopping power, sensitivity and fade resistance.
A unique combination of driver-assistance systems
The unique combination of innovative camera and radar-based driver-assistance systems has been enhanced even further with immediate effect with a view to perfecting the vehicle’s active and passive safety. New optional extras now available for the CL 63 AMG include Active Lane Keeping Assist and Active Blind-Spot Assist. Active Lane Keeping Assist comes into play when the CL 63 AMG unintentionally strays over a solid line on the right or left of a lane or on the outside of a bend. In such cases the Electronic Stability Program ESP® applies the brakes to the wheels on the opposite side of the vehicle to prevent it from unintentionally straying from its lane.
Also new is the Active Blind Spot Assist, which warns the driver by displaying a red warning in the glass of the relevant exterior mirror when it detects that changing lanes would be too dangerous. If the driver ignores the warning signal and a vehicle in an adjacent lane comes too close, the ESP® takes corrective action by applying the brakes to the wheels on the opposite side of the vehicle.
Individualisation thanks to AMG Performance Studio and designo
New optional extras from the AMG Performance Studio as well as designo enable the vehicle’s individuality to be enhanced even further.
The exclusive optional extras from the AMG Performance Studio at a glance:
The wide range of designo products includes exclusive paint finishes, leather upholstery, trim elements and steering wheels – as well as the designo Selection, a very special high-end equipment package.
The new CL 63 AMG will celebrate its market launch in September 2010. The vehicle will have a sales price of 135,100 euros (excl. VAT)/160,769 euros (incl. 19% VAT). The AMG Performance package costs 7900 euros (excl. VAT)/9401 euros (incl. 19% VAT).
Top-of-the-range CL-Class models from Mercedes-AMG appeal to customers worldwide
Exclusivity and dynamism, individuality and high tech: both the CL 63 AMG and the top-of-the-line V12 model, the CL 65 AMG, embody all of these characteristics. Since their market launch in 2007, the CL-Class models from AMG have won the hearts of more than 6,000 customers around the world – making the high-performance Coupés the leaders in their segment. The twelve-cylinder CL 65 AMG model now produces 463 kW (630 hp) and will also be celebrating its market launch in September. The vehicle has a sales price of 191,450 euros (excl. VAT)/227,825.50 euros (incl. 19% VAT).
The large-scale Mercedes coupé has always been synonymous with the ultimate in active and passive safety systems. A significant part of such systems is also made up of the unique combination of trend-setting camera and radar-based driver assistance systems. The latest innovations are called Active Lane Keeping Assist and Active Blind Spot Assist, both of which are available as optional extras.
The combination of state-of-the-art assistance and protection systems turn the AMG CL-Class into an “intelligent” partner which is able to “see”, “feel”, to respond “instinctively” to detected dangers and to act “on its own initiative” in order to avoid accidents or to reduce the severity of accidents. The vehicle makes use of cameras which look far ahead, observe the conditions around the vehicle, and are able to interpret typical critical situations.
Like the Mercedes-Benz S-Class, the CL 63 AMG is now also available with the new Active Lane Keeping Assist. When the driver unintentionally drives over a solid line to the right or left of a lane or on the outside of a bend, the Active Lane Keeping Assist intervenes and prevents the vehicle from unintentionally leaving the lane. In such cases it applies the brakes to the wheels on the opposite side of the vehicle, using the sensor system of the Electronic Stability Program ESP®.
Similarly, when the new Active Blind Spot Assist system detects that changing lanes would be dangerous, it the driver by displaying a red warning in the glass of the relevant exterior mirror. If the driver ignores the warning signal and a vehicle in an adjacent lane comes too close, the ESP® takes corrective action by applying the brakes to the wheels on the opposite side of the vehicle.
Night View Assist Plus and Speed Limit Assist
The enhanced Night View Assist Plus with infrared camera (optional extra) is now equipped with special pedestrian detection: as soon as the system detects pedestrians on the road ahead, they are highlighted on the display to make them more readily noticeable for the driver. The images supplied by the windscreen camera are also used by the Speed Limit Assist, which is available as an optional extra. It recognises speed limit signs in passing and shows the relevant speed limit in the central display.
Adaptive Highbeam Assist is now also included as part of the standard equipment specifications. The camera-based system can detect vehicles with their lights on which are travelling towards or ahead of the car in which the system is fitted and controls the headlamps such as to ensure the largest possible range without dazzling other drivers.
Drowsiness detection on the basis of more than 70 parameters
Thanks to innovative technology the CL-Class has a very sensitive antenna for the attention level of its driver, and can warn him in time when he becomes drowsy.
The ATTENTION ASSIST drowsiness detection system, well-known from the S-Class, continuously monitors more than 70 different parameters. Once the evaluation
electronics recognise the steering behaviour pattern that typically indicates the onset of drowsiness on the basis of information from the highly sensitive steering angle sensor, a warning signal is sounded and “ATTENTION ASSIST. Break!” appears in the instrument cluster. ATTENTION ASSIST is fitted as standard.
“Electronic crumple zone” for maximum occupant protection
Mercedes-Benz has also improved the long and medium-range radar used by the optional Brake Assist BAS PLUS and DISTRONIC PLUS proximity control. Mercedes-Benz also offers another radar-based system for the CL-Class in the form of PRE-SAFE® Brake. If the driver is distracted and fails to recognise the immediate danger of a rear-end collision, or the warning signals of an assistance system, this system can intervene and brake the vehicle independently. The CL-Class makes use of the latest development stage of this safety system: if the driver fails to react even after automatic partial braking action, the PRE-SAFE® Brake activates the maximum braking pressure around 0.6 seconds before what is now recognised as an unavoidable accident – an emergency braking action that can significantly mitigate the severity of the impact. The PRE-SAFE® Brake therefore acts as something like an “electronic crumple zone”.
The new AMG SPEEDSHIFT MCT 7-speed sports transmission guarantees an exceptional emotional experience and sheer driving pleasure. Equipped with seven gears, three driving modes and a double-declutch function, the power transmission of the new CL 63 AMG represents sheer emotive appeal. At the same time it makes a considerable contribution to fuel economy – and specifically in combination with the Controlled Efficiency drive mode with stop/start function and generator management included as standard features. Accordingly the AMG MCT transmission impresses with a combination of unique functions which no other manufacturer offers.
The AMG SPEEDSHIFT MCT 7-speed sports transmission is an innovative
power transfer system that made its debut in the high-performance SL 63 AMG Roadster in 2008. It combines the sporty, direct and agile feedback of a manual transmission with the maximum convenience of an automatic transmission. Featuring seven gears, three driving modes and a double-declutch function, the 7-speed sports transmission offers superb versatility. MCT stands for Multi-Clutch Technology and indicates that only clutch elements are employed to perform gearshifts.
A compact wet start-up clutch, which runs in an oil bath, replaces the conventional torque converter. Thanks to its low rotational inertia, the transmission responds instantaneously and dynamically without the losses typical of a torque converter transmission – thereby helping to save fuel. The AMG sports transmission also impresses with its low weight of just 80 kilograms, which has been made possible through the use of lightweight magnesium for the transmission housing. Vibrations are effectively eliminated by a new, two-stage torsion damper, with resulting benefits in perceived passenger comfort.
Consumption-optimised Controlled Efficiency (“C”) drive mode
During its development and adaptation to the AMG 5.5-litre V8 biturbo engine, the AMG engineers paid special attention to the new driving mode Controlled Efficiency (“C”). The emphasis was on delivering minimum engine speed coupled with a reduced number of gearshifts in all driving situations. When moving off in “C”, the MCT transmission always selects second gear and shifts decidedly early to the next higher gears if the driving style permits. At 60 km/h for instance, sixth gear will already be engaged – not only improving fuel consumption but also noise levels. Thanks to its powerful, readily available torque even at low engine speeds, the AMG V8 biturbo unit is absolutely ideal for this style of driving. Controlled Efficiency also means convenient gearshifts and a “soft” accelerator response set-up for outstandingly smooth power transfer.
Controlled Efficiency stop/start function as a new feature
The Controlled Efficiency stop/start function is also being used in an AMG model for the first time. This system is standard equipment in the CL 63 AMG, and permanently active in the fuel economy driving mode “C”. Once the driver comes to a halt e.g. at a red traffic light, the V8 engine is automatically switched off. Once the brake pedal is released or the accelerator is depressed, the engine is immediately restarted and the car is able to move off quickly. Intelligent technology guarantees a comfortable and immediate starting procedure: a crankshaft sensor which recognises the direction of rotation registers the resting position of all eight pistons. For an automatic engine start, the cylinder with the most favourable piston position receives an injection of fuel into its combustion chamber. The precise piezo-electric injectors greatly assist this process, as they make particularly fast starts possible.
The engine management ensures that the engine is only switched off if certain preconditions are met. The starter battery must have sufficient charge, for example, and the engine must be at the necessary operating temperature for efficient emissions control. The same applies to the interior temperature selected by the driver: if this has not yet been reached, the engine is not switched off when the car comes to a stop. The onboard network management system makes sure that active audio, telephone or video functions are not interrupted by the stop/start function.
A green “ECO” symbol in the AMG main menu shows the driver that the Controlled Efficiency stop/start function is active. Should one of the above criteria be preventing activation of the system, this is shown in the central display by the message “Stop/start inactive” and a yellow “ECO” symbol. In the two more performance-oriented driving modes “S” (Sport) and “M” (Manual), the start/stop function is always deactivated. If required, the driver can also switch it off while in “C” mode as well.
The eight-cylinder biturbo engine also features a new generator management system: whenever the engine is on the overrun or when braking, kinetic energy is used to charge the battery rather than being wasted as heat in the usual way. In all other operating modes a combination of onboard network and generator management enables the generator to be kept at a low voltage. This reduces the load on the engine and makes for fuel savings of around 0.15 litres per 100 kilometres according to the NEDC standard, and up to 0.2 litre per 100 km in city traffic with its frequent overrun and braking phases.
Drive modes “S” and “M” for even more driving pleasure and dynamism
The engine and transmission come across as much more agile in the “S” (Sport) mode. Accelerator pedal movements trigger a more direct traction response,making the downshifts more spontaneous. The engine speed is allowed to reach a higher level in each gear, while the gearshifts are around 25 percent fasterthan in “C”. In the manual shift mode “M”, gearshifts at full throttle take just 100 milliseconds, a reduction of 50 percent compared to “C”. In “S” and “M” modes, the engine management system partially suppresses the cylinders: interrupting ignition and injection under full load leads to even faster gearshifts than before. The highly emotional vocals are an appealing side effect of this lightning-fast process.
Ultra-fast, spontaneous multiple downshifts are another forte of the AMG SPEEDSHIFT MCT 7-speed sports transmission. For instance, kickdown allows gearshifts straight from seventh down to fourth gear, or from fifth to second. In the “S” and “M” driving modes the automatic double-declutching function is active. Every manual or automatic downshift is accompanied by precisely metered double-declutching – incrementally from “S” to “M”. And this not only adds to the driver’s emotional experience: the load-free downshift minimises load-change reactions, which pays particular dividends when braking into bends – and also enhances safety in the wet or on ice.
No automatic downshifts in manual “M” mode
In manual “M” mode the driver also benefits from the high torque of the V8 biturbo engine, as there is no automatic downshift under full load and kickdown; the transmission remains steadfastly in the selected gear. Moreover, the AMG MCT
7-speed sports transmission does not perform an automatic upshift in manual mode when the rev limit is reached. In “M” mode the AMG instrument cluster displays the current gear and alerts the driver to the need for an upshift just before the needle reaches the red zone. This means that a particularly sporty driver can use the superior performance potential to its fullest extent. When approaching the lower rev limit, e.g. when braking the vehicle, there is an automatic downshift to the next lower gear.
The gears can be shifted using the steering wheel shift paddles – whatever the driving mode. The electronic key for selection of the three driving models is located to the left of the COMAND controller. The powerful electronic transmission control unit with its integrated 80 MHz processor guarantees immediate downshifts – for example when approaching traffic lights or if the driver requires fast acceleration when overtaking.
The Direct-Steer system, Torque Vectoring Brake and crosswind stabilisation are the three new systems available as standard on the CL 63 AMG with immediate effect. In combination with the AMG sports suspension and AMG high-performance braking system, these unique high-tech systems provide the highest level of driving dynamics, ride comfort and active safety.
Less steering effort, more agile handling with the same outstanding straight-line stability – the Direct-Steer system in a nutshell, which is now fitted as standard to the CL 63 AMG. A key feature of the Direct-Steer system – which is well-known in the S-Class – is the variable-ratio steering rack that operates using purely mechanical means. While the power steering around the central position utilises an indirect ratio to promote excellent straight-line stability, this alters from a steering angle of around five degrees: really small steering angles are all it takes to perform precise cornering, noticeably improving handling on winding country roads. The steering angle requirements have also been modified, enabling the driver to steer the AMG Coupé far more easily, particularly on urban roads. Compared with a steering system with a constant ratio, the number of revolutions from lock to lock is reduced by around 25 percent with the Direct-Steer system.
Another advantage of the purely mechanical Direct-Steer system is the absence of any elaborate actuators and complex sensors – with associated benefits in terms of weight, installation space and susceptibility to faults. The constant steering response is also advantageous compared with other variable steering systems that sometimes require the driver to adapt quickly to what are fast changing situations on the road.
The Direct-Steer system is based on the familiar speed-sensitive power steering system which reduces the power assistance as the road speed increases. Easy manoeuvrability on urban roads where large steering angles and thus a great deal of power assistance is required, is coupled with reduced support at high speeds, say on the motorway – all of which improves straight-line stability and handling safety.
Torque Vectoring Brake optimises driving dynamics and handling safety
A further improvement in driving dynamics as well as active handling safety comes courtesy of the Torque Vectoring Brake. If the Electronic Stability Program ESP® detects the onset of understeer, short one-sided braking intervention on the vehicle’s inside rear wheel generates a specific yawing moment around the vehicle’s vertical axis within a fraction of a second. Consequently, the AMG CL-Class handles precisely and remains under control at all times as well as also bolstering active handling safety by reducing the tendency to understeer.
Automatic crosswind stabilisation as standard
The AMG sports suspension based on Active Body Control (ABC) also comes as standard with automatic crosswind stabilisation. The ABC control electronics vary the wheel load distribution so that the effect of crosswinds is virtually compensated for or reduced to a minimum. If the CL 63 AMG is affected by a crosswind, the ABC control unit utilises the yaw-rate, lateral acceleration, steering angle and speed sensors of the Electronic Stability Program ESP® to trigger diagonal wheel load distribution instantly – for instance on the left front and right rear wheel. The associated steering effect reduces the effect of the crosswind. Crosswind stabilisation is activated at speeds above 80 km/h while travelling in a straight line or on slight bends. The function is deactivated if the driver himself makes heavy, brusque steering corrections.
The AMG sports suspension all but entirely eliminates the body movements that occur when moving off, cornering and braking. Bends are negotiated with far less roll; the body roll caused by fast evasive manoeuvring is effectively suppressed. Other notable features of Active Body Control are the variable roll moment distribution between the front and rear axles, which the system carries out automatically according to the speed. The computer uses various acceleration sensors to obtain information on the current driving situation and compares this data with those from the pressure sensors in the spring struts and the level sensors on the control arms. The system then computes the control signals that the servo-hydraulic valves at the front and rear axle transform into precisely metered flows of oil.
Briefly pressing the Sport button next to the AMG instrument cluster changes the characteristics of the AMG sports suspension: the roll angle through fast corners is reduced further, the shock absorbers and springs also respond firmer to promote agility. At speeds of between 65 and 100 km/h, ABC automatically lowers the body by as much as 15 millimetres to reduce wind resistance. If more ground clearance is needed when driving on poor road surfaces, the level of the vehicle can be raised by 40 millimetres at a speed up to 30 km/h by simply pressing a button.
Thanks to so-called loading adjustment, the active suspension control also takes the current vehicle weight into account as part of its calculations. As such the CL 63 AMG is able to achieve identical levels of driving dynamics when in a laden condition too.
AMG high-performance compound braking system based on ADAPTIVE BRAKE
Based on the ADAPTIVE BRAKE system, the AMG high-performance braking system continues to set the benchmark for stopping power, sensitivity and fade resistance. The front axle features a double floating brake calliper; this technology combines the advantages of a sliding-calliper disc brake – reduced heat transfer to the brake fluid and clear advantages in terms of comfort thanks to the brake lining guide mechanism – with the efficiency of an extra large fixed calliper brake. At the rear, braking is handled by a large sliding frame-type calliper. Internally ventilated, perforated composite brake discs at the front and rear with a diameter of 390 and 365 millimetres respectively ensure the shortest stopping distances, remarkable resistance to fading and outstanding sensitivity.
The hydraulic dual-circuit braking system is controlled electronically, permitting the inclusion of numerous driver assistance functions that improve safety and comfort – such as “priming” the braking system in critical situations: if the driver suddenly switches from the accelerator to the brake pedal before emergency braking, ADAPTIVE BRAKE increases the pressure in the brake lines and applies the pads to the brake discs, so that they can grip instantly with full force when the brake pedal is pressed. In wet weather, the system injects regular, short brake impulses to ensure that the film of water on the brake discs is wiped off and the brakes can work as effectively as possible. This automatic brake-drying function is always activated when the windscreen wipers have been in operation for a certain time; the driver does not notice the finely metered braking impulses.
After the CL 63 AMG has been braked to a standstill, briefly pressing the brake pedal a little further is all that is required to activate the HOLD function. The coupé is then held by the brakes, even if the driver’s foot comes off the brake pedal. In this way ADAPTIVE BRAKE prevents the car from rolling forward inadvertently when stopped at traffic lights or stuck in stop-and-go traffic, and from rolling back when facing a slope. The HOLD function is deactivated automatically when the car moves off.
Attractive light-alloy wheels featuring a new AMG triple-spoke design
AMG light-alloy wheels featuring a new triple-spoke design and painted in titanium grey with a high-sheen finish provide the contact with the road. 255/40 ZR 19 tyres are fitted on 8.5 x 19 wheels at the front, while 275/40 R 19 tyres are combined with 9.5 x 19 wheels at the rear.
Exclusive optional extras from the AMG Performance Studio include AMG double-spoke forged wheels, painted in black and polished. The dimensions are: 255/35 R 20 tyres on 8.5 x 20 wheels (front) and 275/30 R 20 tyres on 9.5 x 20 wheels (rear).
Mercedes-Benz USA has posted today the first official photos of the 2011 Mercedes-Benz CL63 AMG along with a preliminary equipment list and performance figures for both the 2011 Mercedes CL63 AMG and 2011 Mercedes CL65 AMG. As we previously reported, the the more potent sibling – the CL65 AMG – comes equipped with AMG’s trademark V12 engine, a power plant that produces 621 horsepower and 739 lb-ft of torque. Top speed of the 2011 CL65 AMG is limited to 186 mph, while 0-60 mph time comes in at 4.2 seconds. In the CL63 AMG, making its debut is the new Mercedes 5.5-liter twin-turbo V8 which produces 536 horsepower and 590 lb-ft of torque. Top speed of the 2011 CL63 AMG is limited to 155 mph, while acceleration from 0-60 mph takes precisely 4.4 seconds.
As for the rest of the 2011 Mercedes CL63 AMG and CL65 AMG standard and optional equipment, here’s the preliminary info for both:
(Standard Equipment)
Comfort/Convenience
Performance/Handling
Safety/Security
Optional Packages
Premium 2 Package ($TBD)
Driver Assistance Package ($TBD)
AMG Performance Package ($TBD)
Stand Alone Options
Paint
Upholstery
(Standard Equipment)
Comfort/Convenience
Performance/Handling
Safety/Security
Stand Alone Options
Paint
Upholstery
Last week we brought you the world premiere of the brand new 2011 Mercedes-Benz CL-Class, and today we have a new set of leaked photos of the future Mercedes-Benz CL63 AMG and the CL65 AMG. Like the updated CL-Class, the AMG models have an updated grille, more angular headlights with LED running lights and revised taillights as some of their key design changes.
For the all-powerful Mercedes-Benz CL65 AMG, a quad-exhaust system with oval pipes is present, as is a metallic panel in the center of the rear diffuser and the always beautiful 20 inch AMG rims. The CL63 AMG, on the other hand, is fitted with a quad-exhaust system with rectangular pipes, a slightly simpler looking rear diffuser and 19 inch AMG wheels. Both feature complete AMG body styling, including a revised front and rear apron and side skirts.
As for power, the more potent sibling – the CL65 AMG – comes equipped with AMG’s trademark V12 engine producing 630 PS (463 kW/621 hp) and 1,000 Nm (738 lb-ft) of torque. In the CL63 AMG, making its debut is the new Mercedes 5.5-liter twin-turbo V8 which produces 544 PS (400 kW / 537 hp) and 800 Nm (590 lb-ft) of torque.
To see more of the 2011 Mercedes CL63 AMG and CL65 AMG, you view photos of both in the gallery below, and stay tuned for the official press release covering the models in the not-too-distant future.
There’s been speculation for some time as to whether the next Mercedes CL-Class would retain its moniker or be re-branded as the S-Class Coupe, but if the Mercedes-Benz Netherlands website is any indication, the CL will stay the CL. The website yesterday published a pair of photos debuting what they call the new-generation Mercedes CL-Class, both in an AMG and non-AMG format.
As expected from prior, nearly undisguised spy photos of the 2011 CL, changes to the coupe are going to be relatively minor. Key areas to note include slightly more angular headlights, additional contouring on the hood, a new grille with either two louvres (non-AMG) or one (AMG) compared to three louvres on the current CL, and a new front apron with LED lighting. On the AMG, carbon fiber has been added to the lower portion of the front apron as well, whereas the prior CL63 AMG notes the more traditional, solid painted design.
Other than that, we’ll have to wait for the official word from Mercedes for the full list of enhancements. In the meantime, you can check out the two shots of the leaked 2011 Mercedes-Benz CL-Class in the gallery below.