Official: 2013 Mercedes-Benz A45 AMG unveiled

Article by Christian Andrei, on February 13, 2013

After few leaked photos, the all-new Mercedes-Benz A45 AMG made its official debut today! As we said, the vehicle is powered by the AMG 2.0-litre four-cylinder turbo engine delivering an impressive 265 kW (360 hp) and up to 450 Newton metres of torque. This makes it the most powerful series production four-cylinder engine in the world.

Still, Mercedes-Benz says that the engine needs only 6.9 litres of fuel per 100 kilometres in NEDC combined mode.

The engine is mated to a seven-speed AMG SpeedShift DCT transmission and is able to hit 100 km/h (62 mph) in just 4.6 seconds and has a top speed of 155 mph of 250 km/h. Moreover, the 7-speed transmission offers three driving modes, a double-declutching function and Race Start for optimum acceleration.

The new A 45 AMG comes with variable, performance-oriented AMG 4MATIC all-wheel drive as standard. In developing this all-wheel drive, the focus firmly was on performance and dynamism.

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 percent.

Regarding the design, the car comes with a new body kit consisting of a new front bumper, new side sills, a rear bumper with integrated exhaust system and air diffuser and a new rear roof spoiler. Same theme is continued at the interior where we find new sport bucket seats, a sporty steering wheel and a new gear knob.

Exterior Design

The new Mercedes-Benz A45 AMG is truly a spectacle, with refinements undertaken on both its exterior and interior. This new Mercedes-Benz A-Class has been chosen by Mercedes-AMG for a material facelift, thereby giving the vehicle a sportier and muscular exterior and a more dynamic exclusive interior.

That is aside from the fact that the A45 AMG is a true high-performance vehicle that carries AMG genes. To start with, the Mercedes-Benz A45 AMG features a front distinguished by the AMG "twin blade" radiator grille and the cross strut in the AMG front apron.

Both features are in matt titanium grey. The sides of the A45 AMG feature black flics surrounding the large cooling air intakes. The sides are accentuated by AMG light-alloy wheels in a twin-spoke design and the side sill panels with inserts in matt titanium grey.

In addition to that, the AMG rear apron -- with emphasized air outlet openings at the sides – dons a diffusor insert and trim in matt titanium grey. Featured prominently at the rear of the vehicle are two square, chrome-plated tailpipes of the AMG sports exhaust system with exhaust flap.

Interior Design

Enhancements extend inside the A45 AMG, as the vehicle exudes an even higher level of exclusivity through the premium materials used. For instance, the vehicle has sports seats in ARTICO man-made leather or DINAMICA micro-fiber with red contrasting top stitching.

On the other hand, its dashboard trim features carbon fiber, which matches the five air vents in black/red, the red seat belts and the AMG door sill panels. Additionally, the A45 AMG is fitted with a multifunction steering wheel with shift paddles as well as an AMG DRIVE UNIT.

Finally, the vehicle features an AMG instrument cluster that displays needed information through a central color screen with the AMG main menu and the RACETIMER. Thanks to Mercedes-Benz’s new architecture for front- and all-wheel drive vehicles, Mercedes-Benz has been able to create the A45 AMG and at least two other high-performance premium autos.

Mercedes-AMG relied on its decades of motorsports experience and of production of high-performance vehicles to come up with something as good as the Mercedes-Benz A45 AMG. Having said that, the Mercedes-Benz A45 AMG is truly a vehicle that is a testament to the brand’s claim of "Driving Performance" to perfection.

Press Release

Mercedes-Benz A45 AMG

The A45 AMG sees Mercedes-AMG embarking on a new era. For the first time in the company's history extending back over more than 45 years, Mercedes-Benz's performance brand is offering a fascinating high-performance vehicle in the compact class. The Mercedes-Benz A45 AMG is representative of the "AMG Performance 50" strategy for the future, which is to run up to the 50th birthday of Mercedes-AMG GmbH in 2017. With a maximum output of 265 kW (360 hp) and up to 450 Newton metres of torque, the AMG 2.0-litre four-cylinder turbo engine is the most powerful series production four-cylinder engine in the world. The sensational power density of 133 kW (181 hp) outstrips even the most powerful super sports cars. At the same time, the engine also boasts supreme efficiency and complies with the EU6 emissions standard.The A45 AMG also leads its segment in terms of fuel consumption, returning 6.9 litres per 100 kilometres (40.9 mpg) in NEDC combined mode. These credentials indicate that a further high-performing member of the BlueDIRECT family is now taking to the road.The performance-oriented AMG 4MATIC all-wheel drive onboard the A45 AMG sets new standards in the car's segment.

The substance of the new Mercedes-Benz vehicle architecture for front- and all-wheel drive provides the perfect basis for the A45 AMG and at least two other high-performance premium automobiles from Affalterbach. In designing and developing the Mercedes-Benz A45 AMG, the experts at AMG have drawn on the company's decades of experience in motorsport and the production of powerful, high-performance vehicles. As such, the A45 AMG will inherit the corporate DNA and embody the AMG brand claim "Driving Performance" to perfection: a fascinatingly sporty driving experience combined with impressive craftsmanship and pronounced individuality.

"The A45 AMG will enable Mercedes-AMG to appeal to new customers and tap new markets," observes Ola Källenius, Chairman of Mercedes-AMG GmbH. "We are adding an extremely attractive model with exceptional performance to our range of unique high-performance automobiles."

"With the new A45 AMG we have well and truly achieved our aim of developing the most dynamic, powerful and efficient four-cylinder series production car," comments Tobias Moers, Head of Overall Vehicle Development and Board Member of Mercedes-AMG GmbH. "With its impressive high-tech package and the performance-oriented AMG 4MATIC all-wheel drive, the A45 AMG is a thoroughbred AMG through and through."

The most powerful series production four-cylinder engine in the world

Two figures show that the Mercedes-Benz A45 AMG holds pole position in its displacement segment: the newly developed AMG 2.0-litre turbo engine is the most powerful series production four-cylinder turbo engine in the world. A maximum output of 265 kW (360 hp) and up to 450 Nm of torque are unmatched by any other mass-produced turbocharged four-cylinder engine worldwide.

The power density of 133 kW (181 hp) is also absolutely unrivalled.In this discipline, the new AMG high-performance turbo engine even outstrips the most powerful super sports cars.

The high power and torque output and the combination with the performance-oriented AMG 4MATIC all-wheel drive lead to extremely dynamic performance: the A45 AMG accelerates from zero to 100 km/h (62 mph) in 4.6 seconds, while its top speed stands at 250 km/h (155 mph) [electronically limited].The specially developed AMG engine is also a model of efficiency - the Mercedes-Benz A45 AMG also leads its segment on this front, with fuel consumption of 6.9 litres per 100 km (40.9 mpg) in NEDC combined mode. This is accompanied by particularly low exhaust emissions:the A45 AMG already complies with the EU6 emissions standard which is not scheduled to enter into force until 2015, combined with the limit for the particle count per kilometre which will be mandatory from 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 AMG 2.0-litre 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 turbocharger 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. At a maximum charge 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 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 two striking tailpipes of the AMG sports exhaust system emit a fascinating, full engine sound which is particularly impressive during powerful acceleration.

An AMG Performance exhaust system with exhaust flap and featuring a dedicated tailpipe trim design is optionally available for the A45 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 reserve of engines with more than four cylinders.

High-performance cooling system with components from the SLS AMG

The highly capable driving dynamics of the A45 AMG call for a highly effective cooling system. On the basis of the components belonging to the SLS AMG, a low-temperature circuit is additionally deployed for air-water charge air cooling of the four-cylinder turbo engine. The large cooler section at the 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.

Cooling of the transmission oil is integrated in 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.

Engine production - a tradition of hand-built excellence

Similarly to 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 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. Apart from serving as an AMG hallmark confirming superlative production quality, the AMG engine plate also attests to the peerless DNA of Mercedes-Benz's high-performance brand.

AMG SPEEDSHIFT DCT 7-speed sports transmission

Dual clutch transmission and all-wheel drive - the drive package onboard the new Mercedes-Benz A45 AMG is a demonstration of high-end engineering prowess.The AMG SPEEDSHIFT DCT seven-speed sports transmission is directly flange-mounted on 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 A45 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 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 of the automatic driving programmes, with automatic up- and down-shifting into the bargain.This allows the driver to devote his full attention to the vehicle's impressive performance.

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 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.The ECO start/stop function is also active in "C" mode.

Performance-oriented AMG 4MATIC all-wheel drive

The new A45 AMG comes with variable, performance-oriented AMG 4MATIC all-wheel drive as standard. In developing this all-wheel drive, the focus firmly was 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 seven-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 multi-disc clutch is integrated with 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 without the driver noticing. To enable particularly fast response, the pump is always active and does not need to be started up each time it is required, such as is customary with other systems. Power distribution is fully variable: in normal driving, the A45 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. 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 position.

Three-stage ESP® with ESP® Curve Dynamic Assist

An exclusive feature is the interaction of the AMG 4MATIC all-wheel drive with the three-stage ESP® and the ESP® Curve Dynamic Assist. The three ESP® stages enable the driver to vary the dynamics of the A45 AMG according to their 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. When the driver steps on the brake pedal in the course of braking in "SPORT Handling" mode or "ESP OFF" mode, all the safety functions of the ESP® system are restored.

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 Mercedes-Benz A45 AMG and ensuring that the vehicle remains under control at all times. 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 Assistis an additional function of the Electronic Stability Program 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 A45 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 A45 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 Mercedes-Benz A45 AMG comes as standard with twin-spoke AMG light-alloy wheels, painted in titanium grey with a high-sheen finish, 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.

Exterior design with sporty and muscular highlights

Mercedes-AMG adds emphatically sporty and muscular highlights to the emotional exterior design of the new Mercedes-Benz A-Class sporting the new dynamic style, sculptural character and feature lines on the sides. These refinements ensure that the A45 AMG looks the part as a distinctive high-performance automobile - a genuine AMG through and through.

The front view of the Mercedes-Benz A45 AMG is characterised by the AMG "twin blade" radiator grille and the cross strut in the AMG front apron, both painted in matt titanium grey. Striking black flics surround the large cooling air intakes at the sides. An interesting side view is guaranteed by the AMG light-alloy wheels in twin-spoke design and the side sill panels with inserts in matt titanium grey. The AMG rear apron with its highlighted air outlet openings at the sides features a diffusor insert and trim in matt titanium grey. Two square, chrome-plated tailpipes of the AMG sports exhaust system with exhaust flap add an appropriately bold finishing touch.

Dynamic and exclusive interior design and appointments

Inside, too, the new A45 AMG boasts a heady mix of hallmark Mercedes-AMG dynamism and exclusivity. The sports seats in ARTICO man-made leather/DINAMICA microfibre with red contrasting top-stitching, the multifunction steering wheel with shift paddles and the AMG DRIVE UNIT set new standards in terms of both appearance and quality. The dashboard trim comes in carbon-fibre look - a perfect match for the five air vents in black/red, the red seat belts and the AMG door sill panels. The AMG instrument cluster presents information by means of a central colour display with the AMG main menu and the RACETIMER.

Numerous individualisation options are available for the Mercedes-Benz A45 AMG (selection):

  • AMG Aerodynamics package: AMG rear aerofoil, additional flics in front apron, larger front splitter
  • AMG carbon-fibre exterior mirror housing
  • AMG Exterior Carbon-Fibre package: front splitter, side sill panel inserts and trim on rear apron in genuine carbon fibre
  • AMG rear aerofoil
  • AMG Exclusive package
  • AMG multi-spoke light-alloy wheels fitted with 235/35 R 19 tyres, in two variants: painted in titanium grey with high-sheen finish or in matt black
  • AMG Night package: privacy glass, black anodised waistline trim strip, black tailpipe trims in chromed finish, radiator fins in silver chrome, high-gloss black painted finish for front splitter, exterior mirrors, side sill panel inserts and rear apron trim
  • AMG Performance exhaust system incl. tailpipe trims in specific design
  • AMG Performance suspension with tauter 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 hub caps in central-locking look (for standard AMG light-alloy wheels only)
  • Red painted callipers

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