"A is for Attack: the A-Class is a clear statement of the new dynamism of the Mercedes-Benz brand," explains Dr Dieter Zetsche, Chairman of the Board of Management of Daimler AG and Head of Mercedes-Benz Cars. "It is completely new, down to the last detail. In automotive development, it's not often you get the chance to start with a clean sheet of paper. Our engineers and designers have made the very most of that opportunity."
Design and dynamism are obvious characteristics of the new A-Class even at first glance, simply in the way it sits up to 18 centimetres closer to the road than its predecessor. The radical new design idiom that was so enthusiastically received upon its first appearance with the "Concept A-CLASS" has been rigorously applied for the series-production model. With their fresh interpretation of the classic two-box design, the Mercedes designers have created an emotive exterior with a pronounced sporty flair. "Applying the new dynamic style of Mercedes-Benz to the compact class was a challenge that we thoroughly enjoyed," explains Gorden Wagener, Head of Design at Mercedes-Benz. "The almost sculptural lines of the A-Class are very typical for Mercedes. The feature lines, particularly along the sides of the car, then give the A-Class structure and tautness."
The objective when it came to the interior design was to complement the sporty look of the exterior. On top of this the car has a high-quality feel about it that is unique in this segment, achieved both through the design idiom as such and through the choice and combinations of the high-quality materials used. As seen in the Concept A-CLASS, there is an option allowing a smartphone to be fully integrated into the operating and display system. A special app makes it possible to use the full functionality of the iPhone®, and in due course also of other smartphones, in the car.
All trim surfaces feature an electroplated finish in "silver shadow", giving them a genuine metallic surface with "cool touch" effect. "This is just one example of the way in which the quality of the A-Class's interior is not defined by classic trim elements but by consistent design and by the specific materials used," explains Hartmut Sinkwitz, Head of Interior Design. "The motto we used when designing the interior was 'pure sportiness, newly interpreted'."
Particular visual highlights include, for example, the air vents, which stand out like "sparkling jewels" (Sinkwitz), so underlining the exceptional quality of the interior. The sporty character of the vehicle is further emphasised by the integral seats (optional extra) in the front. The rear seat is similarly sporty in appearance and can accommodate up to three passengers.
As well as the basic specification, which can be individualised with a wide range of options, there is a choice of design and equipment lines that have been put together with the requirements of customers in mind: "Urban", "Style" and "AMGSport".
For the first time, the performance specialists fromAMG were involved in the development of the compact class from a very early stage. The result is the most dynamic version of the new model series - the A-Class Sport "engineered by AMG", in which the visual affinity to the Concept A-CLASS is at its most evident - particularly in terms of the new diamond grille. The A-Class Sport features exclusive 18-inch AMG light-alloy wheels in a 5-spoke design with 235/40 R18 tyres all round and painted high-gloss black with a high-sheen finish, together with red-painted brake callipers. These give an indication of the particularly dynamic driving qualities of the A 250 Sport and the A 220 CDI Sport, which are differentiated, amongst other factors, by a special AMG-developed front axle and a suspension that has been configured to match.The world premiere of the new A-Class (length/width/height: 4292/1780/ 1433 millimetres) will take place at the Geneva Motor Show (8 to 18 March 2012).
Hints of red on the AMG front and rear aprons also serve to emphasise the expressive positioning of the new model. The contrast between black trim and additional accents in red continues in the interior: the contrasting decorative topstitching on the steering wheel and seats is in this same bright shade, as are the seat belts. The ambient lighting of the instruments and the highlight rings of the air vents are similarly red.
Drive system: new petrol and diesel-powered engines
A broad range of both petrol and diesel engines has something to suit every performance requirement, whilst also demonstrating the current state of the art in terms of efficiency: for the first time, a Mercedes-Benz will produce emissions of just 99 g of CO2 per kilometre.
The bandwidth of the new generation of petrol engines with a displacement of 1.6 and 2.0 litres ranges from 115 hp in the A 180 and 156 hp in the A 200 through to 211 hp in the A 250. Common to all is the combination of direct injection and exhaust gas turbocharging, a more advanced combustion process and an extended stratification range for lean-burn operation that uses fast-acting injectors for the multiple injection of the fuel as well as on-demand multi-spark ignition.CAMTRONIC is an innovation that will be celebrating its world premiere in the 1.6-litre engine: adjusting the valve lift on the intake side restricts the amount of fresh mixture used in the partial load range, so reducing consumption.
The diesel engines also offer an impressively high level of efficiency and environmental compatibility, thanks to sophisticated injection technology and turbocharging. The A 180 CDI offers an output of 109 hp and a maximum torque of up to 250 Nm, while the A 200 CDI has a maximum output of 136 hp and torque that rises to 300 Nm. The A 220 CDI has a displacement of 2.2 litres, an output of 170 hp and torque of 350 Nm, delivering absolutely exceptional performance in the A-Class.
All engines in the new A-Class feature the ECOstart/stop function as standard. The engines can be combined either with the new six-speed manual transmission or, as an option, with the 7G-DCT dual-clutch automatic transmission.
Further highlights: suspension, aerodynamics, safety
The dynamism promised by the design and drive system is realised by the suspension. A noticeably lower centre of gravity and a new 4-link rear axle provide the basis for this; and would also make the installation of 4MATIC all-wheel drive possible. Customers can choose between various suspension settings, among them the optional sports suspension with Direct-Steer system. The electromechanical steering in the A-Class has been completely redesigned, so that the electric motor for the power assistance now sits directly on the steering gear in the form of a compact and extremely precise Dual Pinion EPS.
Its exceptional aerodynamic performance, with a new record Cd value of 0.26, puts the A-Class at the top of its class. This is further helped by the standard roof spoiler, which hides all the unsightly aerials on the A-Class.
The A-Class is the only vehicle in its class to feature as standard a radar-based collision warning system with adaptive Brake Assist, which lowers the risk of rear-end collisions. The COLLISION PREVENTION ASSIST system gives a visual and acoustic warning to alert a possibly distracted driver to identified obstacles, and prepares Brake Assist for the most precise braking response possible. This is initiated as soon as the driver steps firmly on the brake pedal.
The PRE-SAFE® preventive occupant protection system is now available for the first time in the A-Class. This innovation, which was premiered in the S-Class in 2002, thus makes its very first appearance in the compact class. Core features of PRE-SAFE® are reversible belt tensioning, the closing of side windows and sliding sunroof in case of critical lateral dynamics and adjustment of the fully electric front passenger seat with memory function to an ideal position for maximum effectiveness of the restraint systems. PRE-SAFE® is always activated in response to critical longitudinal and lateral dynamics and may also be triggered upon intervention by certain assistance functions.
Source: automotivetv.net/