2012 Mercedes-Benz CLS 63 AMG in depth [video]

New 5.5 liter biturbo V8 comes with more power and 32 percent better fuel-economy than in previous 6.3 liter-powered CLS 63 AMG

Mercedes-Benz has announced full details on the 2012 CLS 63 AMG model.

New for the CLS 63 is now AMG's 5.5 liter biturbo V8 engine, which replaces the outgoing naturally aspirated 6.3 liter V8.

The new 5.5 liter biturbo unit features a peak output of 410 kW (557 PS/550 bhp) and 800 Nm (590 lb-ft) of torque with the AMG Performance package. The standard engine configuration is rated at 386 kW (525 PS / 521 bhp) and 700 Nm (516 lb-ft) of torque.

Both units are mated to the AMG Speedshift MCT 7-speed sport transmission.

Fuel economy on the standard CLS 63 AMG now comes in at under 10 liter/100 km (a noteworthy achievement) - with a 9.9 liters per 100 km rating on the European cycle (NEDC).

That represents a remarkable 32 percent improvement in fuel-economy over the predecessor's 6.3 liter unit with an output of 378 kW (514 PS/510 bhp) and 630 Nm (465 lb-ft) of torque. That new fuel-economy rating comes by means of a stop/start system, engine technology such as latest piezo injectors and an aluminum crankshaft, as well as the use of aluminum panels in the body.

The 0 to 100 km/h sprint is 4.4 seconds for the standard model and 4.3 seconds for the CLS 63 with the AMG Performance package. The standard variant has a top speed electronically limited to 250 km/h (155 mph).

The CLS 63 AMG comes with 3 drive modes: 'S' (Sport), 'S+' (Sport plus) and 'M' (Manual) and features AMG Ride Control suspension for a smoother, more exact ride quality with 3 modes of its own: Comfort, Sport and Sport Plus.

The 2012 CLS 63 AMG comes standard with high-performance LED headlights, AMG light-alloy wheels in a new triple-spoke design with 255/35R19 and 285/30R19 tires front and rear, respectively.

The AMG Performance package also offers a ceramic high-performance composite braking system, carbon fibre/black piano lacquer trims elements, door sills with illuminated AMG logo, carbon-fiber spoiler lip for the boot and red brake calipers, a seperate set of 19-inch light alloys in a double 5-spoke design and, aside from the aforementioned performance boost, the package includes a top speed limit bumped up to 300 km/h (186 mph).

Prices in Germany for the 2012 Mercedes-Benz CLS 63 AMG start at €115,846.50 including 19 percent VAT. The AMG Performance package rings in at €7735 (VAT included).

Complete details in the 7 page press release below.

Source: Mercedes-Benz

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AMG V8 biturbo engine consuming 9.9 litres per 100 km: CLS 63 AMG - the benchmark in design, performance and efficiency

San Diego (USA) - Exciting design, ultimate performance and ground-breaking efficiency: this is what the new Mercedes-Benz CLS 63 AMG is all about. The top-of-the-range version of the four-door coupé is equipped with the newly developed AMG V8 biturbo engine, featuring a peak output of up to 410 kW (557 hp) and 800 Nm of torque, as well as the AMG SPEEDSHIFT MCT 7-speed sports transmission. On top of this, the vehicle's fuel con-sumption of 9.9 litres per 100 km (NEDC) represents an improvement of 32 percent compared with the previous model. The combination of an AMG RIDE CONTROL sports suspension with electronically controlled damping system and new front axle, newly developed electromechanical AMG sports parameter steering, and also optional AMG ceramic high-performance composite braking system, is synonymous with maximum driving dynamics. Visually, the CLS 63 AMG impresses with its athletic appearance and distinctive exterior and interior design. The model's standard specification also includes innovative LED High Performance headlamps.

"The new CLS 63 AMG continues the success story of the previous models, the CLS 55 AMG and CLS 63 AMG, which have delighted our customers all around the world since 2004", according to Ola Källenius, Head of Mercedes-AMG GmbH. "The CLS 63 AMG is a unique high-performance car - it sets new standards in design, performance and efficiency."

As with the S 63 AMG and CL 63 AMG, drivers of the CLS 63 AMG will benefit from an eight-cylinder powerhouse, designated internally as the M 157: the new AMG 5.5-litre V8 biturbo engine boasts a combination of innovative high-tech components which, in addition to spray-guided direct petrol injection with piezo injectors, also include a full aluminium crankcase, four-valve technology with camshaft adjustment, air/water intercooling, generator management and stop/start system. The weight-optimized AMG sports exhaust system with dual twin chrome tailpipes ensures a distinctive engine sound. With a displacement of 5461 cc, the eight-cylinder engine develops a peak output of 386 kW (525 hp) and torque of 700 Nm. In conjunction with the AMG Performance package, these figures increase to 410 kW (557 hp) and 800 Nm. Both variants of the CLS 63 AMG achieve exceptional performance: acceleration from zero to 100 km/h takes 4.4 and 4.3 seconds respectively, and the top speed is 250 km/h (electronically limited).

The major difference between both power units is the increase in the maximum charge-air pressure from 1.0 to 1.3 bar. In addition, the CLS 63 AMG with the AMG Performance package features a special high-quality genuine carbon fibre engine cover.

Quantum leap: fuel consumption reduced by 32 percent
Despite a significant performance increase compared with the previous model, which had a naturally aspirated AMG 6.3-litre V8 engine producing 378 kW (514 hp) and 630 Nm of torque, the new CLS 63 AMG is some 4.6 litres, or 32 percent, more economical - which represents a quantum leap forward. The NEDC fuel consumption of 9.9 litres per 100 km equates to a CO2 output of 231 g/km. Thanks to these figures, the new V8 Coupé from AMG not only undercuts all of its direct competitors in the four-door high-performance coupé segment, but is also more fuel efficient than significantly lower-powered vehicles. Both performance variants have identical fuel consumption and CO2 figures.

Key data at a glance:


CLS 63 AMG
Displacement
5461 cc
Bore x stroke
98.0 x 90.5 mm
Compression ratio
10.0:1
Output
386 kW (525 hp) at 5250 rpm
410 kW (557 hp) at 5750 rpm*
Max. torque
700 Nm at 1750 - 5000 rpm
800 Nm at 2000 - 4500 rpm*
Engine weight (dry)
204 kg
Fuel consumption NEDC combined
9.9 l/100 km
CO2 emissions
231 g/km
Acceleration 0 - 100 km/h
4.4 s 4.3 s*
Top speed**
250 km/h
* with AMG Performance package; ** electronically limited

Exclusive: AMG SPEEDSHIFT MCT 7-speed sports transmission
An important contribution towards achieving the unrivalled consumption figures has been made by the AMG SPEEDSHIFT MCT 7-speed sports transmission, a component used exclusively at Mercedes-AMG. Unlike a conventional automatic transmission, the MCT transmission does away with the torque converter; instead, it makes use of a compact, wet start-up clutch. Also fitted as standard equipment is the stop/start function: it is permanently active in the transmission's Controlled Efficiency ("C") mode, and switches the eight-cylinder engine off when the car comes to a stop. At the same time, "C" mode also means a "soft" accelerator response set-up with convenient and early gearshifts; moving off generally takes place in second gear. A green "ECO" symbol in the AMG instrument cluster shows the driver that the stop/start function is active.
The engine and transmission come across as much more agile in the "S" (Sport), "S+" (Sport plus) and "M" (Manual) modes; in addition, the stop/start function is switched off. In "S", "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. An automatic double-declutching function and RACE START function are also included as standard.

Autonomously developed AMG RIDE CONTROL sports suspension
The suspension, steering and braking system of the new CLS 63 AMG complement the high-tech drive system perfectly. The AMG RIDE CONTROL sports suspension, with steel suspension struts on the front axle and air suspension struts on the rear axle, as well as automatic level control, is enhanced further by an electronically controlled damping system; it automatically adjusts the damping characteristics depending on the driving conditions and reduces the roll angle of the body. The result: lightning-fast adjustment between optimum driving comfort and the best possible agility. The driver can switch between the three suspension modes of "Comfort", "Sport" and "Sport plus" at the press of a button.

The autonomously developed front axle, with a track width which is 24 mm wider, is the optimum match for the newly developed electromechanical AMG sports parameter steering. It features a more direct ratio, variable power assistance which adapts according to the suspension mode, and also contributes towards reducing fuel consumption by up to 0.3 litre (7 g CO2) in the ECE fuel cycle, since the steering assistance system only draws power when the vehicle is actually being steered.

AMG ceramic high-performance composite braking system available as an option
Perfect deceleration even when driving extremely briskly is provided by the AMG high-performance braking system with 360 mm, internally ventilated and perforated brake discs all-round. Particularly resistant, motorsports-tested composite technology is used on the front axle. The optional AMG ceramic high-performance composite braking system with yet larger brake discs guarantees an even higher level of braking performance as well as lower unsprung masses. Good contact with the road, meanwhile, is provided courtesy of the titanium grey-painted, high-sheen AMG light-alloy wheels featuring a new triple-spoke design and fitted with 255/35 R 19 tyres on the front and 285/30 R 19 tyres on the rear. The AMG light-alloy wheels are manufactured using the weight-optimized flow-forming process, as already used on the SLS AMG.

Intelligent lightweight construction: making a significant contribution to efficiency
The highest level of engineering is also reflected in the body of the new CLS 63 AMG: the intelligent lightweight construction makes a significant contribution towards addressing the classic conflicting goals of low weight and high strength. Like the SLS AMG, the CLS 63 AMG is also fitted with doors featuring a full aluminium construction. They consist of deep-drawn aluminium panels with extruded sections, and are around 24 kg lighter compared with conventional steel doors. In addition, the bonnet, front wings, boot lid, parcel shelf, various support sections as well as major parts of the chassis and engine are all made from aluminium too.
Light-years ahead: LED High Performance headlamps as standard
The CLS 63 AMG is the first passenger car in the world to offer LED High Performance headlamps as standard, which combine the exciting colour elements of LED technology - similar to daylight - with the performance, functionality and energy efficiency of today's bi-xenon generation. For the first time ever this new light system provides the Intelligent Light System already proven in Mercedes models fitted with bi-xenon headlamps in combination with LED technology - including the active light function with LED for the first time too. The headlamps, with their 71 LED lamps in total, underline the unmistakable appearance of the CLS 63 AMG. The light specialists from Mercedes-Benz have for the first time been able to use LED technology in the Adaptive Highbeam Assist, resulting in an entirely new level of safety when driving at night.

In contrast to the first vehicles equipped with LED headlamps, no compromises are now necessary with respect to the functionality and performance of the lighting technology. There are further arguments for the new, LED-based lighting technology: the average operating life of an LED is around 10,000 hours, around five times longer than that of a xenon light; moreover, LED headlamps most closely approximate the colour temperature of daylight. This means that LED light is in keeping with normal human perception patterns. Studies have shown that the closer the colour of artificial light comes to daylight, the less strain there is on the eyes. With a colour temperature of 5500 kelvin, LED light is closer to daylight (6500 K) than xenon light (4200 K). The LED daytime driving lights specific to AMG are also presented in two characteristic light strips integrated into the AMG front apron.

Exterior design inspired by the SLS AMG
When viewed from the front, the new CLS 63 AMG evokes associations with the SLS AMG - the radiator grille in particular, with its large Mercedes star and wing-shaped horizontal slats, appears to have been inspired by the gullwing. The top-of-the-range AMG model distinguishes itself from the other CLS variants with its distinctive bonnet, wider mudguards with "V8 BITURBO" logo and a specific AMG front apron with black painted cross member. Eye-catching features at the rear include the diffuser insert, the AMG spoiler lip on the boot lid, the AMG sports exhaust system with dual twin chrome tailpipes, and - as also featured on the SLS AMG - integrated rear foglamp. The AMG bodystyling perfectly matches the typical CLS outline, which is essentially characterised by the elegantly long proportions, the lateral dropping line and the muscular sports car-like shoulder line above the rear axle.

Exclusive atmosphere in the interior
This philosophy also continues through consistently into the interior. All of the AMG-specific design and appointment features ideally supplement the redesigned CLS interior. The wrap-around effect in the cockpit, with its high line which sweeps from the driver's door over the instrument panel support and across to the front passenger door, is generously flanked by high-quality trim elements - available in black piano lacquer as standard in the top-of-the-range AMG model. Quality materials and workmanship meet the very highest of standards and help to guarantee a particularly exclusive atmosphere. The extensive range of standard appointments also includes AMG sports seats in nappa leather, a new three-spoke AMG Performance steering wheel with aluminium shift paddles and flattened top and bottom sections, and the AMG DRIVE UNIT with compact E-SELECT selector lever.

New driving assistance systems: greater safety
More than a dozen driving assistance systems on the new CLS help to prevent traffic accidents and reduce the severity of an accident. The Active Blind Spot Assist and the Active Lane Keeping Assist are new.
Active Blind Spot Assist warns the driver if the short-range radar sensors detect that there is a danger of collision if the vehicle is about to change lanes. Should the driver ignore the warnings and come dangerously close to the vehicle in the next lane, Active Blind Spot Assist will intervene. By applying braking force to the wheels on the opposite side of the vehicle via the Electronic Stability Program ESP®, a yaw movement is created which counteracts the collision course.

Active Lane Keeping Assist is now also linked to the ESP® for the first time. This system kicks into action if the driver inadvertently drifts over a solid line to the right or left of a lane. In this case, Active Lane Keeping Assist brakes the opposite wheels and thereby prevents the vehicle from crossing the line. A display on the instrument cluster warns the driver at the same time. If broken lane markings

are crossed, the system controls an electric pulse generator in the steering wheel which generates vibrations for a short time - a discreet but highly effective cue to countersteer immediately. Before the braking system intervenes, the steering wheel always vibrates to provide a warning.

AMG Performance package with enhanced performance ex works
One of the highlights of the attractive optional extras is the AMG Performance package which is available for the CLS 63 AMG. It comprises:

  • an increase in the peak output of 24 kW (32 hp) and in the maximum torque of 100 Nm; genuine carbon fibre AMG engine cover
  • genuine carbon fibre AMG spoiler lip on the boot lid
  • red-painted brake calipers
  • AMG Performance steering wheel with Alcantara® inserts in the grip areas
  • Exclusive optional extras are also available from the AMG Performance Studio:
  • AMG RIDE CONTROL Performance suspension
  • Lightweight, forged AMG light-alloy wheels featuring a 5-twin-spoke design with size 255/35 R 19 tyres at the front and 285/30 R 19 at the rear
  • AMG rear axle locking differential with 40 percent locking action
  • AMG ceramic high-performance composite braking system
  • AMG Exterior Carbon package
  • AMG trim elements in carbon fibre/black piano lacquer
  • Illuminated AMG door sill panels
  • AMG Driver's Package (includes restriction of top speed to 300 km/h, participation in driver training course at the AMG Driving Academy)

The new CLS 63 AMG will be celebrating its market launch in March 2001 and will carry a price tag of 97,350 euros (excl. VAT)/115,846.50 euros (incl. 19% VAT). The AMG Performance package costs 6500 euros (excl. VAT)/7735 euros (incl. 19% VAT).

At a glance: the highlights of the AMG V8?biturbo engine and the AMG SPEEDSHIFT MCT 7-speed sports transmission

  • Direct petrol injection with piezo-electric injectors and spray-guided combustionBiturbocharging with air/water intercooling
  • Sophisticated engine electronics with Controlled Efficiency stop/start system and generator management
  • Aluminium crankcase with ventilation holes to reduce friction
  • Continuous camshaft adjustment on the intake and exhaust sides
  • Demand-controlled engine oil pump
  • AMG SPEEDSHIFT MCT 7-speed sports transmission with compact start-up clutch and three drive modes
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Comments (34)

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 valantise46 valantise46
so its called CLS63,but it has a 5.5lt engine??hmmm makes sense!
January 14, 2011 5:59 pm
 burana800 burana800
So last CLS AMG was called CLS63 and had 6,2 l engine. Does that make more sense to you?
January 15, 2011 2:37 am
 valantise46 valantise46
they named the previous one 63 AMG to continue the tradition with the name,although it had a 6.2lt engine.but before the 6.2 N/A engine,mercedes was using the 5.5lt for their AMG models...and they called it 55 AMG.so no it doesn't make sense to me
January 15, 2011 5:13 am
 benz_man benz_man
Just like BMW, Mercedes stopped adhering to engine-displacement matching model name a LONG time ago, keep up. In this example, I'd assume (again, like BMW) the 63 name indicates theoretical displacement since it features forced induction...at least, thats what marketing will tell everyone...
January 15, 2011 8:23 pm
 jolz24 jolz24
good luck trying to decipher m-b, bmw nomenclature
January 16, 2011 6:27 am
 norther norther
you think the name and the engine is missplaced? how about an Mb Amg model with an optional amg sport pacage. this car has an optional extra named "amg performance package" which gives the car another 25 hp and 100nm of torque. and at the cost offff...... and my question is why? personally i think thats retarded MB. ur some greedy little, ripoff, piggies.
January 16, 2011 5:06 pm
 benz_man benz_man
...or they could just be trying to meet their CAFE and emissions requirements...
January 16, 2011 6:44 pm
 Uptohere Uptohere
Fantastic sounding engine! But yeah, when someone asks "what's the 63 stand for?" It shouldn't have to be that difficult. Kinda lame.
January 17, 2011 8:15 am
 wcfuser14429 wcfuser14429
My God shes beautiful.
January 14, 2011 7:05 pm
 darzav darzav
10l / 100km. That is surely noteworthy. Consumption normally put me off these cars, but wow.
January 14, 2011 7:06 pm
 M! M!
the rear overhang looks a bit disproportional...
January 14, 2011 11:46 pm
 yucelerdogan yucelerdogan
This is amazing, rear side is so agressive. But mirrors are huge and i think don't look good.
January 15, 2011 2:29 am
 mikemikemikemike mikemikemikemike
They should have kept similar trademark concave tailights somehow. Beautiful car though.
January 15, 2011 2:37 am
 mikemikemikemike mikemikemikemike
I wish their engines didn't look so clean and nice. Somewhere between where they are now and a polished crate motor would be awesome.
January 15, 2011 2:42 am
 GHERNAS GHERNAS
I want to place order..........Very nice machine
January 15, 2011 6:31 am
 Johnluke Johnluke
Class,elegance,outrageous power and the ability to make 3 of your friends giggle like little school girls when you floor it. Time to trade in the SL550.
January 15, 2011 12:42 pm
 GRAVE GRAVE
Porsches GTS model engines are less powerfull than the Turbo, and I don't think there will be a Turbo S version cuz they already offer a 50hp performance package upgrade. This CLS63 is realy better than the Panamera in every aspects
January 15, 2011 1:17 pm
 6SPEEDV8 6SPEEDV8
you obviously haven't read any reviews of the Panamera..either that or you are blinded by your blatant fanboyism of Mercedes.
January 15, 2011 7:13 pm
 GTurbo GTurbo
Where the old CLS was all classical elegance, the new one is all malevolent menace! My money will go on the former.
January 15, 2011 3:16 pm
 6SPEEDV8 6SPEEDV8
I could not agree more. That NA 6.2...what a beast.
January 15, 2011 7:14 pm
 veesix veesix
those L.E.D running lights really shines in daylight.
January 15, 2011 9:56 pm
 AlbertoIT AlbertoIT
Mercedes is now in the right direction in terms of design.Just the E-class paid the price of the new design, while the CLS, new C class and SLK look very beautiful and not so sad and cold as BMWs.
January 17, 2011 12:39 am
 YaSSaL YaSSaL
Even though I'm not a merc fan, the red one just leaves me speechless...
January 17, 2011 1:23 am
 DUCATI46 DUCATI46
MMMMMMMMMMM Not sure think its a bit too fussy.... i'll stick with and old CLS63 thanks.
January 17, 2011 1:57 am
 panamera789 panamera789
this is pure beauty.. it's time to add a neighbour to my panamera... porsche is porsche and it's not replaceable... but this cls is truly beauty as well...
January 17, 2011 3:01 am
 bmw2002m bmw2002m
@DUCATI46 - I agree, I think this model whilst being goodlooking is a shade too fussy, it looks great from the front. On another note, someone said earlier that MB are being greedy offering a performance pack - most manufacturers are doing that these days...it makes the company money but they leave the choice up to the customers. AMG engines always sound terrific...perfect balance between deep bass rumble and absolute bark when floored. What I think is most significant is that they have increased fuel consumption by 32%. The CL63 only gets 300 miles out of a full tank at a push!.
January 17, 2011 3:13 am
 joelynn joelynn
itncredible sound and looks... but i think the last CLS was prettier
January 17, 2011 6:19 am
 B_M_Gearhead B_M_Gearhead
Alex, in your article you state there is an aluminum crankshaft. In the press release I couldn't find any info about the crankshaft but it does state there is an full aluminum "crankcase". Correct me if I'm wrong but I cannot believe aluminum would ever be suited for an engine crankshaft, especially for an engine with this kind of power output. I think what they are saying is that the crankcase, main caps, and stud girdle will all be aluminum.
January 17, 2011 10:02 am
 benz_man benz_man
That one had me guessing a bit too...
January 17, 2011 12:30 pm
 fred123456 fred123456
From the previous model i think they did a good job... But with all the new 4 seaters 4 door vehicles out they need to push harder than ever to get some sales....
January 18, 2011 4:35 am
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