The Mercedes-Benz CLA 45 AMG: Design meets 'Driving Performance'
Mercedes-AMG is kicking off the 2013 automotive spring in the "Big Apple" with new dynamic spirit. The CLA 45 AMG will celebrate its world debut at the New York International Auto Show. The four-door mid-size coupe follows in the footsteps of the successful CLS 63 AMG, the trendsetter for four-door high-performance coupes. A glance at the high-tech package proves that the CLA 45 AMG also has the characteristic genes and that it fulfills AMG's brand promise "Driving Performance" perfectly. With a maximum power output of 360 hp and a peak torque of 331 lb-ft. it is the world's most powerful four-cylinder engine built in series production. But that's not all: the turbocharged engine also delivers convincing efficiency and meets EU6 emission standards. With a fuel consumption of 6.9 litres per 100 kilometres according to NEDC, the CLA 45 AMG also meets highest requirements. The performance-oriented AMG 4MATIC all-wheel drive of the CLA 45 AMG sets new standards in the competitive segment as well.
Ola Källenius, CEO of Mercedes-AMG GmbH: "In the CLA 45 AMG Mercedes AMG presents a unique and absolutely desirable automobile with the characteristic AMG genes. The high-tech package with the world's most powerful four-cylinder production engine and performance-oriented AMG 4MATIC all-wheel drive stands for 'Driving Performance' at its best."
The new four-door performance coupe offers an extraordinary combination of exciting, sporty driving sensation, extravagant design and maximum individuality.
Key figures at a glance:
Displacement: 1,991 cc
Bore x stroke: 83.0 x 92.0 mm
Compression ratio: 8.6 : 1
Rated power output: 360 hp at 6,000 rpm
Peak torque 331 lb-ft.: @ 2,250-5,000 rpm
Engine weight (dry): 148 kg
Maximum engine speed: 6,700 rpm
Power density: 133 kW (181 hp)
Peak pressure: up to 140 bar
Maximum boost pressure: 1.8 bar
Fuel consumption (NEDC combined): 6.9 – 7.1 l/100 km
CO2 emissions: 161 - 165 g/km
Efficiency class: C - D
Emission standard: EU6
Acceleration 0-100 km/h: 4.6 s
Top speed: 250 km/h*
*electronically limited
Typically AMG: the most powerful four-cylinder production engine in the world
A glance at the technical data of the CLA 45 AMG shows: the AMG 2.0-litre turbo engine is the most powerful turbocharged four-cylinder production engine in the world with a maximum power output of 265 kW (360 hp) and a peak torque of 331 lb-ft.
The combination of high power, strong torque and performance-oriented AMG 4MATIC all-wheel drive lends the CLA 45 AMG driving performance resembling those of sports cars. The performance coupe sprints from a standstill to 100 km/h in 4.6 seconds. Top speed is electronically limited to 250 km/h. The AMG 2.0-litre turbocharged engine delivers not just convincing dynamic spirit, but also efficiency and environmental compatibility. The CLA 45 AMG has a fuel consumption of 6.9 litres per 100 kilometres according to NEDC, and today already meets EU6 emission standards that won't go into effect until 2015. It also complies with the particle concentration limit of 6 × 1011 particles per kilometre that will be binding starting in 2017.
The basis for these impressive figures is provided by the high-tech package which Mercedes-AMG put together. As a high-performance engine belonging to the BlueDIRECT family, the AMG four-cylinder turbo engine features spray-guided direct fuel injection via piezo injectors positioned centrally in the four combustion chambers. The combination of multiple injection and multiple spark ignition improves fuel utilization and substantially increases thermodynamic efficiency, leading to low exhaust emissions. Other highlights include the sand-cast all-aluminium crankcase, weight-optimized crank assembly with forged steel crankshaft and forged pistons with friction-optimized piston rings, NANOSLIDE cylinder lining technology, water-to-air intercooling, alternator management and ECO start/stop function.
Twin-scroll turbochargers and AMG sports exhaust system with butterfly valve
Mercedes-AMG masters the essential challenges concerning the response of small-displacement turbo engines by means of a twin-scroll turbocharger, minimized restrictions in the exhaust system and an innovative injection strategy. The twin-scroll technology provides for a more spontaneous build-up of boost pressure, making effective use of exhaust gas back pressure, temperature and momentum. This results in a swifter build-up of torque from low revs. As a positive side effect, the twin-scroll technology also benefits fuel consumption and exhaust emissions. With a maximum boost pressure of 1.8 bar, the AMG 2.0-litre four-cylinder turbo engine also leads the field in this respect.
The AMG sports exhaust system features large pipe cross-sections and an automatically controlled butterfly valve. This technology, which is familiar from the SLK 55 AMG, reconciles the two apparently conflicting aims of tangible dynamics and hallmark Mercedes comfort on long trips. The valve is continuously adjusted by the engine mapping in line with the power called up by the driver, load status and engine speed. The AMG sports exhaust system produces a fascinating, throaty exhaust note that is particularly impressive during powerful acceleration.
An AMG Performance exhaust system with butterfly valve is also optionally available for the CLA 45 AMG. It provides for an even more emotional and striking exhaust note when the throttle is open and when shifting gears. The double-declutching function during downshifts and the suppression of ignition and injection during upshifts under full load produce a particularly powerful sound with the AMG Performance exhaust system and create a level of emotionality that is otherwise reserved for engines with more than four cylinders.
High-performance cooling system with components from the SLS AMG
The high level of driving dynamics of the CLA 45 AMG call for a highly effective cooling system. On the basis of the components of the SLS AMG, a low-temperature circuit is additionally installed for water-to-air intercooling of the charge air of the four-cylinder turbo engine. The large radiator at the very front of the cooling module is supplemented by an additional radiator in the wheel well. A high-performance electric pump provides the required flow through the water radiators located behind the large intake ports and the intercooler connected in line. This provides for ideal cooling of the highly compressed charge air, thereby contributing to optimum engine performance.
Cooling of the transmission oil is integrated into the hot-water cooling circuit of the engine. The radiator positioned behind the front fascia 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": engine production the traditional artisan way
Like all eight- and twelve-cylinder engines, the new AMG 2.0-litre four-cylinder turbo engine is also 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 – where all BlueDIRECT four-cylinder engines are built for the 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. Apart from serving as an AMG hallmark confirming superlative production quality, the AMG engine plate also attests to the peerless genes of the Mercedes-Benz high-performance brand.
AMG SPEEDSHIFT DCT 7-speed sports transmission
Dual clutch transmission and all-wheel drive – the drive train package on board the CLA 45 AMG is a demonstration of high-end engineering prowess. The AMG SPEEDSHIFT DCT 7-speed sports transmission is flange-mounted directly to the transversely installed AMG 2.0-litre four-cylinder turbo 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 programs, a double-declutching function and RACE START for optimum acceleration. The strengths of the AMG DCT sports transmission include spontaneous gearshifts without interruption in tractive power, a tailor-made control strategy, extremely smooth and easy gearshifts and a high level of efficiency. Reinforced gears ensure maximum durability. Synchronizer rings with carbon-fibre friction linings improve longevity while also optimizing response during manual gearshifts – the ideal basis for ambitious lap times on a closed circuit.
"Momentary M mode" for even greater dynamics and driving pleasure
Another special feature designed to enhance dynamic performance and driving pleasure is the so-called "Momentary M" program. 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 dynamics and performance in all automatic driving programs, with automatic upshifts upon reaching the rev limit. This allows the driver to devote full attention to the vehicle's impressive performance.
The shift times in manual mode "M" and in sport mode "S" are of similar sporty character as those of the SLS AMG GT super sports car. Brief and precise suppression of ignition and injection under full load leads to even faster gearshifts with a more emotional sound than ever. In "C" mode (Controlled Efficiency), soft transmission and engine characteristics are conducive to a fuel-efficient and comfort-oriented driving style. In addition, the ECO start/stop function is active in "C" mode.
Performance-oriented AMG 4MATIC all-wheel drive
The CLA 45 AMG comes with variable AMG 4MATIC all-wheel drive as standard. In developing this all-wheel-drive system, the focus was on "performance" and "dynamic spirit." The power transfer to the rear drive train is facilitated by a compact power take-off unit (PTU), which is fully integrated into the 7-speed sports transmission. Its lubrication is supplied by the oil circuit of the sports transmission. This configuration results in substantial weight advantages compared with rival systems, which branch off power by means of an add-on component with dedicated circuit. Together with the friction-minimized tapered roller bearings, the PTU delivers excellent efficiency. As an additional bonus, the system weight of the new AMG 4MATIC all-wheel drive is up to 25 percent less than the all-wheel-drive versions offered by the competition.
A two-part propeller shaft transfers the power of the AMG 2.0-litre four-cylinder turbo engine to the rear axle. In the interests of favorable weight distribution, an electrohydraulically controlled multi-disc clutch is integrated into the rear axle differential. The multi-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 undetectable by the driver. To enable particularly fast response, the pump is always active and does not require to be started up each time it is needed, such as is usually the case with other systems. Torque split is fully variable: in normal driving, the CLA 45 AMG has front-wheel drive in the interests of optimum efficiency. If the driving dynamics require, the variable AMG 4MATIC all-wheel drive splits the torque between front and rear axle at a ratio of up to 50 : 50. The variables influencing the torque split ratio are vehicle speed, lateral and longitudinal acceleration, steering angle, speed difference between the individual wheels, selected gear and accelerator position.
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 ESP® Curve Dynamic Assist. The three ESP® stages enable the driver to vary the dynamics of the CLA 45 AMG according to his individual preferences 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 the onset of unstable driving conditions.
Briefly pressing the ESP® button activates "SPORT Handling" mode. This dynamically oriented driving mode applies appropriate control strategies for delayed ESP® intervention and increased torque at the rear axle. This means more driving pleasure for drivers who are keen to exploit the vehicle's dynamic potential. Pressing and holding the ESP® button activates "ESP OFF" mode. In this mode, the ESP® functions are not available. ESP OFF should only be used by experienced drivers on closed circuits. When the driver steps on the brake pedal in "SPORT Handling" or "ESP OFF" mode, all safety functions of the ESP® system are available.
ESP® Curve Dynamic Assist complements the ESP® system to perfection: during dynamic cornering, imperceptible brake intervention on an inside wheel creates a defined yaw moment around the vertical axis, resulting in precise and safe turn-in of the CLA 45 AMG. ESP® Curve Dynamic Assist is adapted according to the selected ESP® mode. In "SPORT Handling" and "ESP OFF" mode it aids in fulfilling the driver's wish for increased agility and driving dynamics. ESP® Curve Dynamic Assist is an additional function of the Electronic Stability Program which noticeably improves not only agility, but also active driving safety at the limits of the laws of physics.
AMG sports suspension with stand-alone front and rear axle
Like every AMG high-performance automobile, the 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 ensure more agile turn-in properties and more precise and direct feedback from the road surface. The more rigid bearings also lead to higher camber stability, allowing higher cornering speeds. In developing the complete front axle, great importance has been attached to attaining the best possible traction under highly dynamic driving conditions.
The four-link rear axle of the CLA 45 AMG is also a totally new development. In the course of optimizing the elastokinematics, the strut bearings were modified for maximum driving dynamics and control. The rear axle carrier is fitted with more rigid bearings for increased directional stability; the subframe is rigidly bolted to the body. The AMG sports suspension with specifically tuned spring/damper units and larger stabilizers ensures high lateral acceleration and a reduced rolling tendency in fast S-bends. The CLA 45 AMG comes standard with twin-spoke AMG light-alloy wheels painted titanium gray with a high-sheen finish, fitted with size 235/40 R 18 tires.
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 assist 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 front and rear brake discs measuring 350 x 32 millimetres at the front and 330 x 22 millimetres at the rear provides spontaneous and reliable deceleration.
Unmistakable design
The new CLA 45 AMG leaves no doubt even at first glance: similarities with the CLS 63 AMG are definitely intentional. Mercedes-AMG complements the expressive design idiom with distinctive AMG elements and thus creates a new design icon. The CLA was born with sporty proportions – the AMG "twin blade" radiator grille and the cross member in the AMG front fascia, both painted matte titanium gray, reinforce the dynamic appearance further. The large air inlet ports on the sides are framed by black flics and improve the air flow to the cooling modules located behind them. Bi-xenon headlights are part of the standard equipment.
Side sill panels with matte titanium gray inserts catch the eye in the side view. Typical elements of a powerful top-of-the-line AMG model furthermore are the twin-spoke AMG light-alloy wheels, painted titanium gray and with a high-sheen finish, as well as the "TURBO AMG" lettering on the fender. The expressive feature in the rear is the AMG rear fascia of the CLA 45 AMG. It features stylized side air vents as well as a large diffuser insert and matte titanium gray trim elements. The two chrome-plated tailpipes of the AMG sport exhaust system with butterfly valve emphasize the dynamic spirit. The striking LED tail lights come as standard.
Dynamic, exclusive and high-quality interior
Impressive quality, high-end materials as well as the dynamic spirit and exclusive character typical of Mercedes-AMG – the interior of the CLA 45 AMG leaves nothing to be desired. Sport seats wrapped in ARTICO man-made leather and DINAMICA microfibres with red contrasting topstitching, red seat belts, the multifunction steering wheel with shift paddles, the AMG DRIVE UNIT and front AMG door sill panels all come as standard. The brushed aluminium trim of the instrument panel is perfectly matched to the five anodized ventilation nozzles. The AMG instrument cluster provides information with a central color display, the AMG main menu and the RACETIMER.
Numerous customization options are available for the CLA 45 AMG (excerpt):
• AMG carbon-fibre exterior mirror housing
• AMG Exterior Carbon-Fibre package: front splitter, side sill panel inserts and trim on rear fascia in genuine carbon fibre
• AMG carbon-fibre interior trim
• AMG Exclusive package
• AMG floor mats
• Multi-spoke AMG light-alloy wheels in size 8.0J x 19 fitted with size 235/35 R 19 tires, in two versions: painted titanium gray with high-sheen finish or painted matte black with high-sheen rim flange
• AMG Night package: privacy glazing, black anodized beltline trim strip, tailpipes with black-chromed finish, radiator grille blades in silver chrome, high-gloss, black painted front splitter, exterior mirrors, side sill panel inserts and rear fascia trim
• AMG Performance exhaust system
• AMG Performance suspension with firmer spring/damper tuning
• AMG Performance steering wheel and E-SELECT lever, electronic key with AMG emblem
• AMG Performance seats
• AMG wheel bolt covers in black with centres caps in centres-lock look (for standard AMG light-alloy wheels only)
• Intelligent Light System
• Red painted calipers
The sales release of the new CLA 45 AMG will start in July 2013, the market launch will begin in September of this year.
About Mercedes-Benz Canada
Mercedes-Benz Canada is responsible for the sales, marketing and service of the three brands within the Mercedes-Benz Group in Canada: Mercedes-Benz, AMG and smart. Headquartered in Toronto, Ontario, Mercedes-Benz Canada Inc. employs approximately 1,450 people in 22 locations across Canada. Through a nationwide network of 13 Mercedes-Benz owned retail operations and 40 authorized dealerships, Mercedes-Benz Canada sold 35,503 vehicles in 2012, the best year ever reported for Mercedes-Benz Canada Inc.
For more information, please contact:
JoAnne Caza 416-847-7550 joanne.caza@mercedes-benz.ca
Michael Minielly 416-847-7509 michael.minielly@mercedes-benz.ca
Further information from Mercedes-Benz is available on the internet at: www.media.mercedes-benz.ca
