Yes, the Mercedes-Benz CLA 45 AMG will come to Australia
Mercedes-Benz CLA 45 AMG debuts
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31st March, 2013
Mercedes-AMG chose the "Big Apple" for the world premiere of the CLA 45
AMG. The New York Motor Show has been host to numerous new model debuts including the worked-over CLA. The philosophy
behind this four-door mid-series sedan (which Mercedes-Benz call a coupe) matches that of the successful CLS 63 AMG, the
trendsetter among four-door high-performance coupés.
A glance at the new CLA 45 AMG high-tech package shows that the new model has all the typical 'DNA' to make it a true
representative of the AMG's Driving Performance brand claim: with a peak output of 265 kW (360 hp) and maximum torque of
450 Newton metres, its turbocharged engine (which is shared with the A 45 AMG) is not only the most powerful
four-cylinder unit in series production anywhere in the world but also a highly efficient one that meets the EU6
emissions standard. With fuel consumption of 6.9 litres per 100 km according to NEDC 'combined' figures, the CLA 45 AMG
meets even the most exacting requirements. The performance-oriented AMG 4MATIC all-wheel drive of the CLA 45 AMG
similarly sets a new benchmark in its competitive segment.
Ola Källenius, Chairman of Mercedes-AMG GmbH: "With the CLA 45 AMG, Mercedes-AMG is launching a unique and highly
desirable automobile with all the typical DNA of AMG. A high-tech package that includes the most powerful
series-production four-cylinder engine in the world as well as performance-oriented AMG 4MATIC all-wheel drive, it
embodies Driving Performance at its best."
The new four-door high-performance coupé-like sedan offers an exceptional combination of an excitingly sporty driving
experience, extravagant design and exclusive individuality.
Turbocharged engine, all-wheel drive and the AMG SPEEDSHIFT DCT 7-speed sports transmission - the CLA 45 AMG features
the same drive system that is already powering the A 45 AMG to deliver highly dynamic and efficient performance.
If you're curious, the 0-100 km/h acceleration time for the new CLA 45 AMG is just 4.6 seconds!
Key figures at a glance:
Mercedes-Benz CLA 45 AMG
Bore x stroke
83.0 x 92.0 mm
265 kW (360 hp) at 6,000 rpm
450 Nm at 2,250-5,000 rpm
Engine weight (dry)
Maximum engine speed
133 kW (181 hp)
up to 140 bar
Maximum charge pressure
6.9 – 7.1 l/100 km
161 - 165 g/km
C - D
Acceleration 0-100 km/h
Typically AMG: the most powerful series-production four-cylinder turbo engine in the world
A glance at the technical data for the CLA 45 AMG shows: the AMG 2.0-litre turbo engine, with a maximum output of 265
kW (360 hp) and up to 450 Newton metres of torque, is the most powerful turbocharged four-cylinder engine in series
production anywhere in the world.
The combination of high performance and torque, together with the performance-oriented AMG 4MATIC all-wheel-drive
system, gives the CLA 45 AMG driving characteristics almost on a par with those of a sports car. The performance coupé
accelerates from zero to 100 km/h in 4.6 seconds and its top speed is 250 km/h (electronically limited). But the AMG
2.0-litre turbo engine is impressive not only in terms of its dynamic performance but also with regard to its efficiency
and environmental compatibility. The CLA 45 AMG achieves a fuel consumption level of 6.9 litres per 100 kilometres
according to NEDC combined figures, while it already meets the EU6 emissions standard that only comes into effect in 2015
as well as the limit for the particle count per kilometre of 6 × 1011 part./km that will become mandatory in 2017.
The basis for these impressive figures is provided by the high-tech package which has been put together by
Mercedes-AMG. As a high-performance engine belonging to the BlueDIRECT family, the four-cylinder turbo engine features
spray-guided direct petrol injection via piezo injectors positioned centrally in the four combustion chambers. The
combination of multiple fuel injection and multiple spark ignition improves fuel utilisation and increases thermodynamic
efficiency substantially, leading to lower exhaust emissions. Other highlights include the gravity-die sandcast
all-aluminium crankcase, weight-optimised crank assembly with forged steel crankshaft and forged pistons with
friction-optimised piston rings, NANOSLIDE cylinder wall technology, air-water charge air cooling, generator management
and ECO start/stop function.
Twin-scroll turbochargers and AMG sports exhaust system with exhaust flap
Mercedes-AMG addresses the essential challenges concerning the response of small-displacement turbo engines by means
of a twin-scroll turbocharger, maximum derestriction of the exhaust system and an innovative injection strategy. The
twin-scroll technology provides for a more spontaneous build-up of charge pressure, making effective use of exhaust gas
back pressure, exhaust gas temperature and exhaust gas impulse. This results in a swifter build-up of torque right from
the lower rev range. As a positive side-effect, the twin-scroll technology also benefits fuel consumption and exhaust
emissions. With a maximum charge pressure of 1.8 bar, the AMG 2.0-litre four-cylinder turbo engine leads the field in
this respect, too.
The AMG sports exhaust system features large pipe cross-sections and an automatically controlled exhaust flap. This
technology, which is familiar from the SLK 55 AMG, reconciles the two apparently conflicting aims of tangible dynamism
and hallmark Mercedes comfort on long journeys. The flap is continuously adjusted by map control according to the power
called up by the driver, load status and engine speed. The AMG sports exhaust system emits a fascinating, full engine
sound that is particularly impressive during powerful acceleration.
An AMG Performance exhaust system with exhaust flap is available as an option for the A 45 AMG. This provides for an
even more emotional and striking engine sound when the throttle is open and during gear shifting. The double-declutching
function during downshifting and the interruption of ignition and injection during upshifting under full load produce a
particularly throaty sound with the AMG Performance exhaust system and create a level of emotionality which is
otherwise the preserve of engines with more than four cylinders.
High-performance cooling system with components from the SLS AMG
The high driving dynamics of the Mercedes-Benz CLA 45 AMG call for a highly effective cooling system. On the basis of
the components from the SLS AMG, a low-temperature circuit is additionally deployed for air-water charge air cooling of
the four-cylinder turbo engine. The cooler extending across the complete front level of the cooling module is
supplemented by an additional cooler in the wheel arch.
Together with the charge air cooler, which is connected in series, a high-performance electric pump ensures the
required flow through the water coolers located behind the large intake ports. This provides for ideal cooling of the
highly compressed charge air, thereby contributing towards optimum engine performance.
The cooling of the transmission oil is integrated into the water cooling circuit for the engine. The water cooler
positioned behind the front apron is supported by the heat exchanger which is fitted directly on the transmission and
supplied with cooling water as required by means of an auxiliary pump.
"One man, one engine": a tradition of hand-built excellence
As is the case with all eight- and twelve-cylinder engines, the new AMG four‑cylinder turbo engine is hand-built
according to the traditional AMG philosophy of "one man, one engine". An exclusive assembly line has been set up for the
new AMG engine at the Mercedes-Benz engine production plant in Kölleda (Germany) – where all BlueDIRECT four-cylinder
engines are made for the A- and B-Class models. A characteristic feature of the "one man, one engine" production process
is the AMG engine plate bearing the signature of the responsible engine fitter.
AMG SPEEDSHIFT DCT 7-speed sports transmission
Dual clutch transmission and all-wheel drive – the drive package on board the new CLA 45 AMG is a demonstration of
high-end engineering prowess. The AMG SPEEDSHIFT DCT 7-speed sports transmission is directly flange-mounted on the
transversely installed engine. Key software modules have been adopted from the SLS AMG super sports car with its
inspirational power transmission concept. The dual clutch transmission of the CLA 45 AMG features seven gears, three
driving programmes, a double-declutching function and RACE START for optimum acceleration. The strengths of the AMG DCT
sports transmission include spontaneous gear shifting without any interruption in tractive power, a tailor-made control
strategy, extremely smooth and easy gear shifting and a high level of efficiency. Reinforced gear wheels provide for
maximum stability. Synchroniser rings with carbon-fibre friction linings improve durability while also optimising the
response time during manual gear-changing – the ideal basis for ambitious laps on cordoned-off race tracks.
"Momentary M mode" for even greater dynamism and driving enjoyment
Another special feature designed to enhance dynamic performance and driving enjoyment is the so-called "Momentary M
mode". In C and S mode, this enables the driver to activate manual mode ("M") without having to remove a hand from the
steering wheel, by pressing the "up" or "down" shift paddle once. In Momentary M mode the driver experiences the dynamism
and performance of gear-shifting in manual mode in all the automatic driving programmes, with automatic up-shifting on
meeting the rpm limit into the bargain. This allows the driver to devote his full attention to the vehicle's impressive
The shift times in manual mode "M" and in Sport mode "S" are similarly sporty in character to those of the SLS AMG GT
super sports car. Briefly and precisely interrupting ignition and injection under full load leads to even faster
gearshifts in "M" and "S", with a more emotional sound than ever. In "C" mode (Controlled Efficiency), tangibly soft
transmission and engine characteristics support a fuel-efficient and comfort-oriented driving style. In addition, in "C"
mode the ECO start/stop function is active.
Performance-oriented AMG 4MATIC all-wheel drive
The CLA 45 AMG comes with variable, performance-oriented AMG 4MATIC all-wheel drive as standard. In developing this
all-wheel drive, the focus was firmly on performance and dynamism. The power flux to the rear powertrain is provided by a
compact power take-off unit (PTU) which is fully integrated in the 7-speed sports transmission. It does not possess an
oil circuit of its own. Instead, it is supplied with lubricant from the oil circuit of the sports transmission. This
configuration gives rise to substantial weight advantages in comparison to rival systems which branch off power by means
of an add-on component with its own oil circuit. Together with the friction-minimised tapered roller bearings, the PTU
achieves an excellent level of efficiency. As an additional bonus, the system weight of the new AMG 4MATIC all-wheel
drive is up to 25 per cent lighter than the all-wheel-drive versions offered by the competition.
A two-part propeller shaft transfers the power from the AMG 2.0-litre four-cylinder turbo engine to the rear axle. In
the interests of favourable weight distribution, an electrohydraulically controlled multiple-disc clutch is integrated
with the rear axle differential. The multiple-disc clutch immediately detects slip at the front axle. A hydraulic pump
instantaneously presses the discs together and channels the engine torque to the rear wheels as necessary. All this takes
place virtually without the driver noticing. To enable particularly fast response, the pump is always active and does not
require to be started up each time it is needed, as is customary with other systems. Power distribution is fully
variable: in normal driving, the CLA 45 AMG uses front-wheel drive in the interests of optimum efficiency. When the
driving dynamics so require, the variable AMG 4MATIC all-wheel drive splits the torque between front and rear axle up to
a ratio of 50:50 per cent. The variables influencing the power distribution ratio are vehicle speed, lateral and
longitudinal acceleration, steering angle, speed difference between the individual wheels, selected gear and accelerator
3-stage ESP® with ESP® Curve Dynamic Assist
An exclusive feature is the interaction of the AMG 4MATIC all-wheel drive with the 3-stage ESP® and the ESP® Curve
Dynamic Assist. The three ESP® stages enable the driver to vary the dynamics of the CLA 45 AMG according to his/her
individual wishes at the push of a button. The safety-oriented "ESP ON" mode supports the driver in maintaining neutral
handling characteristics. The system initiates braking intervention on one or more wheels and reduces the engine torque
on detecting that the operating conditions are becoming unstable.
Briefly pressing the ESP® button activates "ESP SPORT Handling" mode. This dynamically oriented driving mode applies
appropriate control strategies for later ESP® intervention and increased drive torque at the rear axle. This means more
fun at the wheel for drivers who are keen to exploit the vehicle's dynamic potential. Pressing the ESP® button longer
activates "ESP OFF". In this mode, the ESP® functions are not available. ESP OFF should only be used by experienced
drivers on cordoned-off race tracks. If the driver steps on the brake pedal in "SPORT Handling" mode or "ESP OFF" mode,
all the safety functions of the ESP® system become available during braking.
ESP® Curve Dynamic Assist complements the ESP® system to perfection: during dynamic cornering, imperceptible braking
intervention on the inside wheel gives rise to a defined yaw moment around the vertical axis, resulting in precise
cornering by the CLA 45 AMG and ensuring that the vehicle remains under control at all times. ESP® Curve Dynamic Assist
is adapted according to the selected ESP® mode. In "ESP SPORT Handling" mode and "ESP OFF" mode it supports the driver's
wish for increased agility and driving dynamics. ESP® Curve Dynamic Assist is an additional function of the Electronic
Stability Programme which noticeably improves not only agility, but also active driving safety in critical conditions.
AMG sports suspension with independent front and rear axle
Like every AMG high-performance automobile, the new CLA 45 AMG also incorporates sophisticated axle technology. For
enhanced driving dynamics, the three-link front suspension is provided with stiffer steering knuckles and totally new
elastokinematics. Newly developed, more rigid bearings are employed in the lower link plane. These provide for more agile
cornering properties and more precise and direct feedback from the road surface. The more rigid bearings also lead to
higher camber stiffness, enabling higher cornering speeds. In developing the complete front axle, great importance has
been attached to attaining the best possible traction in highly dynamic driving.
The four-link rear axle of the CLA 45 AMG is also a totally new development.
In the course of optimising the elastokinematics, the strut bearings were duly adapted for maximum driving dynamics and
control. The rear axle carrier is provided with more rigid bearings for increased driving stability; the subframe is
rigidly connected to the body. The AMG sports suspension with specifically tuned spring/damper units and larger
stabilisers provides for high lateral acceleration and a reduced rolling tendency in fast double bends. The CLA 45 AMG
comes as standard with AMG light-alloy wheels fitted with 235/40 R 18 tyres.
AMG speed-sensitive sports steering and AMG high-performance braking system
The electromechanical Dual Pinion AMG speed-sensitive sports steering with AMG-specific, speed-dependent power
assistance and a constant steering ratio (14.5:1) enables high steering precision and agility. The electric motor is
installed in space-saving configuration on the steering gear. The AMG high-performance braking system with ventilated and
perforated brake discs all round in size 350 x 32 millimetres at the front and 330 x 22 millimetres at the rear provides
for spontaneous and reliable deceleration.
The expressive design idiom of the CLA has been enhanced by Mercedes-AMG with some characteristic AMG elements - and
the result is a new design icon. The sporty proportions of the CLA were there from the start , but its dynamic look is
reinforced by the AMG "twin blade" radiator grille and the cross strut in the AMG front apron, both painted in matt
titanium grey. The generously proportioned cooling air intakes are framed by black flics, which improve the airflow over
the cooling modules positioned behind them. Bi-xenon headlamps are included as standard.
An eye catching view from the side is ensured by the sill panels with inserts in matt titanium grey. Further elements
typical of a top-of-the-range AMG model include the AMG twin-spoke light-alloy wheels, painted grey and with a high-sheen
finish, plus the "TURBO AMG" lettering on the wing. Seen from the rear, the CLA 45 AMG displays a distinctive AMG rear
apron: this not only reveals the presence of the air outlet openings at the sides, but also incorporates a large diffuser
insert and a trim section in matt titanium grey. The two chrome-plated twin tailpipes of the AMG sports exhaust system,
including an exhaust flap, serve to emphasise the car's dynamic appeal.
The Mercedes-Benz CLA 45 AMG will be released in Europe in September 2013. Stay tuned to Next Car for the
details of the Australian release.