AMG V8 biturbo engine with up to 33 percent better fuel economy

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Stunning design, superior performance and groundbreaking efficiency – that is the all-new 2012 Mercedes-Benz CLS63 AMG. The four-door coupe features the all-new AMG V8 biturbo engine generating an output of up to 550 hp and 590 lb-ft of torque, as well as the AMG SPEEDSHIFT MCT 7-speed Sports Transmission. Fuel economy of 16 mpg city and 21 mpg highway (estimated figures) represents an improvement of up to 33 percent compared with the preceding model. The 2012 CLS63 AMG goes on sale in the US in the summer of 2011.

The combination of AMG Adaptive Suspension with the adaptive damping system and a new front axle arrangement, plus new electro-hydraulic AMG sports steering delivers supreme handling and dynamics. From a visual standpoint, the 2012 CLS63 AMG cuts an impressive figure with its athletic stance and distinctive exterior and interior design. The brand new active LED high-performance headlights are available as an option, with LED Daytime Running Lamps fitted as standard.

“The new CLS63 AMG writes the next chapter in the success story
created by the CLS55 AMG and CLS63 AMG, which have been amazing our
customers around the world since 2004,” says Ola Källenius, General
Manager of Mercedes-AMG GmbH. “The CLS63 AMG is a unique,
high-performance automobile – it sets new benchmarks in design,
performance and efficiency.”

As with the S63 AMG and CL63 AMG, drivers of the CLS63 AMG benefit
from the new eight-cylinder motor known internally as the M 157. The
new AMG 5.5-liter V8 biturbo engine features a combination of
high-tech components – in addition to spray-guided gasoline direct
injection with piezo injectors, it boasts an all-aluminum crank-case,
four-valve technology with variable camshafts, air-water charge-air
cooling, generator management and stop/start system. From 5,461 cm3,
the eight-cylinder generates a maximum output of 518 hp and 516 lb-ft
of torque. In combination with the optional AMG Performance Package,
output rises to 550 hp and 590 lb-ft. Both versions of the CLS63 AMG
deliver exceptional performance – acceleration from 0 to 60 mph takes
4.4 and 4.3 seconds respectively, with a top speed of 155 mph in the
standard version and 186 mph with the Performance Package
(electronically limited. All figures are preliminary).

The key difference between the two performance levels is the maximum
charge pressure of the twin turbochargers, which is 14.5 psi in the
standard CLS63 AMG and 18.8 psi with the Performance Package.
Moreover, the version with the Performance Package boasts an
attractive engine cover with carbon-fiber applications.

Quantum leap – 33 percent improved fuel economy

Despite a substantial increase in output compared with the preceding
model with the AMG 6.3-liter V8 naturally aspirated engine producing
507 hp and 465 lb-ft, the new CLS63 AMG goes 4 miles further in the
city on one gallon of fuel, making it 33 percent more fuel-efficient –
no less than a quantum leap. With estimated fuel economy of 16 mpg
city and 21 mpg highway, the new AMG V8 coupe is not only considerably
better than all of its direct competitors in the exclusive segment of
high-performance four-door coupes, it is also more fuel-efficient than
many far less potent vehicles. Both performance variants have
identical fuel economy.

Overview of key data

2012 CLS63 AMG
Displacement 5,461 cm3
Bore x stroke 98.0 x 90.5 mm
Compression ratio 10.0 : 1
Power 518 hp @ 5,500 r/min
550 hp @ 5,500 r/min*
Max. torque 516 lb-ft @ 1750-5000 r/min
590 lb-ft @ 2000-4500 r/min*
Engine weight (dry) 450 lbs
Fuel economy 16 / 21 mpg city / highway
Acceleration 0-60 mph 4.4 s
4.3 s*
Top speed** 155 mph
186 mph*

All figures are preliminary; * with AMG Performance Package; ** electronically limited

Exclusive – AMG SPEEDSHIFT MCT 7-speed Sport Transmission

A significant proportion of the unparalleled fuel economy is due to
the Mercedes- AMG exclusive AMG SPEEDSHIFT MCT 7-speed Sport
Transmission. In contrast to a conventional automatic gearbox, the MCT
transmission operates without a torque converter, using instead a
compact, wet start-up clutch. The stop/start function is standard
equipment and is constantly active in the Controlled Efficiency (“C”)
transmission program, switching off the eight-cylinder when the vehicle
is at a standstill. The Controlled Efficiency setting also provides
smoother transmission mapping, delivering comfortable and early
shifting, starting from rest in second gear. A green “ECO” symbol on
the AMG dash indicates to the driver that the stop/start function is

The “S” (Sport), “S+” (Sport Plus) and “M” (Manual) programs offer a
more agile engine and transmission setup, while the stop/start
function is deactivated. In the “M”, “S” and “S+” modes, the engine
management partially suppresses the cylinders – by interrupting ignition
and injection for a very short and precisely defined period under full
load, it makes shift times faster than ever. One highly appealing side
effect of this exceptionally quick process is a stunningly emotional
sound. Automatic revmatching and the RACE START function round out the
comprehensive list of standard equipment.

Independent AMG Adaptive Suspension

The suspension, steering and braking system on the new CLS63 AMG are
perfectly matched to the high-tech driveline. The AMG Adaptive
Suspension with steel struts at the front and air suspension at the
rear, as well as automatic ride-height control, is further refined
with an electronic damping system. Depending on the situation, it
automatically varies the damping characteristics and reduces body
roll. The outcome is an incredibly fast correlation between optimum
comfort and best-possible agility. The driver can switch between the
three suspension settings “Comfort”, “Sport” and “Sport plus” at the
touch of a button.

The independent front axle setup has a 0.94 inch wider track and is
paired perfectly with the electro-hydraulic AMG sports steering. Not
only does the level of power assistance vary in accordance with the
suspension mode, it also delivers an improvement in fuel economy
because it draws energy only when the steering is actually in use. The
3-stage ESP® offers individual settings – and thus a distinct plus for
driving fun with no restriction in safety.

AMG high-performance braking system

The AMG high-performance braking system provides perfect stopping
power even under extreme driving conditions with 14.2-inch internally
ventilated and crossdrilled brake discs at all four corners. The front
axle features highly resilient, motorsport- tested composite
technology. Contact with the road is maintained with titanium gray
painted and polished AMG 19-inch triple 5-spoke alloy wheels clad in
255/35 R19 tires (front) and 285/30 R19 (rear).

Intelligent lightweight design – major contribution to efficiency

When it comes to its bodyshell, the 2012 CLS63 AMG is nothing less
than an engineering work of art – intelligent lightweight design plays
a major role in overcoming the classic conflict between low weight
and high stiffness. Like the SLS AMG, the CLS63 AMG also features
all-aluminum doors. They are made using deep-drawn aluminum sheet and
extruded profile, and are around 24 percent lighter overall than
conventional steel doors. Also made from aluminum are the hood, front
fenders, rear parcel shelf, several beam profiles and a large number
of chassis and engine components.

Progress through light – active LED high-performance headlamps

The CLS-Class is the first model line in the world to feature active
LED highperformance headlamps that combine the amazing daylight-like
color of LED technology with the performance, functionality and energy
efficiency of today’s bi-xenon headlights. The new full-LED light
system is available as an option in the U.S. and for the first time
offers the advanced lighting technology already proven in Mercedes
models with bi-xenon headlamps. The headlamps, with their total of 71
LEDs, underscore the distinctive presence of the CLS63 AMG.
Mercedes-Benz light specialists were able to combine LED technology
with the optional Adaptive Highbeam Assist for the first time, leading
to an all-new level of nighttime safety.

Contrary to the first vehicles with LED headlamps, there are now
absolutely no restrictions to the functionality and performance of this
light technology. The case for the new LED technology is strengthened
further by factors such as – the average lifecycle of an LED being
10,000 hours, which is around five times more than a xenon lamp; and
the color of LED driving lights being the closest to daylight. This
means that LED light is a good match for the normal operating range of
the human eye. Studies show that artificial light puts less strain on
the eye the closer it is to the color of daylight. With a color
temperature of 5,500 Kelvin, LED light is closer to daylight (6,500 K)
than xenon light (4,200 K). Fitted as standard are the characteristic
AMGspecific LED Daytime Running Lights, which feature two light bars
integrated into the AMG front skirt.

Exterior design inspired by SLS AMG

From the front, the new CLS63 AMG is evocative of the SLS AMG – the
radiator grille in particular, with the large Mercedes star and the
wing-shaped louvers, draws its inspiration from the AMG super sports
car. The CLS63 AMG is differentiated from the other CLS variants by a
unique hood, wider fenders featuring the “V8 BITURBO” logo and an
exclusive AMG front skirt with a black-painted cross-brace.
Distinguishing features on the rear end include the diffuser insert,
the AMG spoiler on the trunk lid, the AMG sports exhaust with two
chromed dual tailpipes, as well as the integrated fog lamps also
familiar from the SLS AMG. The AMG styling harmonizes perfectly with the
classic CLS silhouette, identifiable largely by its elegantly taut
proportions, the “dropping line” along the side and the sporty shoulder
muscles spanning the rear axle.

Exclusive interior ambience

This philosophy is also carried into the interior. All AMG-specific
styling and equipment features are a perfect match for the new design
of the CLS interior. The wraparound effect in the cockpit, with the high
line flowing in a single sweep from the driver door across the
dashboard to the passenger door is flanked by generously proportioned
and finely detailed trim – in the case of the AMG flagship model, this
comes as standard in burl walnut wood veneer. Piano black lacquer and
carbon-fiber trim elements are available as options. Material quality
and workmanship is of the highest order and provide a highly exclusive
ambience. The extensive range of standard equipment includes AMG
sports seats in premium leather, a new AMG threespoke performance
steering wheel with aluminum shift paddles and a flattened rim top and
bottom and the AMG DRIVE UNIT with compact E-SELECT shift lever.

New driver assistance systems – more safety

More than a dozen driver assistance systems in the new CLS work
together to avoid accidents and mitigate their consequences. New
systems include Active Blind Spot Assist and Active Lane Keeping Assist
(both part of the Driver Assistance Package).

Active Blind Spot Assist warns the driver when, using close-range
radar sensors, it detects the threat of a collision during a lane
change maneuver. If the driver ignores the warning and comes
dangerously close to the vehicle in the neighboring lane, Active Blind
Spot Assist steps in. By initiating a brief braking impulse, controlled
by ESP®, on the rear wheel on the other side of the vehicle, it
causes a yawing motion that counteracts the collision course.

Networked with ESP® for the first time is Active Lane Keeping Assist.
The system is activated when the driver involuntarily drives over
continuous lane markings right or left. In such cases, Active Lane
Keeping Assist applies the brakes on the opposing rear wheel in order
to prevent the vehicle from crossing the line. At the same time, a
display in the dashboard issues a warning to the driver. Should the
vehicle cross broken lane markings, the system issues an electrically
generated impulse via the steering wheel. This creates a short
vibration, providing a subtle but highly effective cue to counter-steer
immediately. This tactile warning via steering wheel vibration always
occurs prior to any braking input.

AMG Performance Package adds more power

One highlight of the highly attractive optional equipment list is the
AMG Performance Package for the CLS63 AMG incorporating the following:

  • Increase in power output of 32 hp (total 550 hp) and maximum torque of 74 lb-ft (total 590 lb-ft)
  • AMG engine cover in genuine carbon-fiber
  • Rear spoiler in genuine carbon-fiber
  • Sport suspension
  • Red brake calipers
  • Top speed increased to 186 mph
  • AMG Performance Steering Wheel with Alcantara® applications around the grip zones

“Launch Edition” – something very special

One very special offering is the exclusive CLS63 AMG “Launch
Edition”. Painted in the new shade of matte Manganit Gray Magno, the
“Launch Edition” is a stunning composition of top-quality interior
detailing – on opening the door, the AMG sports seats are an immediate
eye-catcher, designo leather in “Corteccia Pearl” delivers a
mesmerizing shimmering metallic surface finish. Interior roof liner, A, B
and C pillars and sun visors are all upholstered in anthracite
Alcantara®. AMG trim elements in carbon-fiber/piano black lacquer
create a functional ambience, while designo floor mats in black velour
with the design badge and designo leather edging in “Corteccia Pearl”
correspond perfectly with the designo leather seats.

U.S. market launch of the 2012 CLS63 AMG is scheduled for summer 2011.

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