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Progressive Exterior Design
The appearance of the new A-Class reflects the new Mercedes-Benz design
strategy. The result is what is known as a two-box design with a distinct
character of its own, a sportily emotive exterior and an exceptionally
high-quality feel to the interior.
Defined edges and tautly drawn surfaces mark out the exterior design of the new
A-Class. The constant interplay between concave and convex planes creates a
characteristic play of light, particularly along the sides of the car, which
contributes to its unique appearance.
Typical features of the long, sporty front are its pronounced V-shape, the
separate headlamps, the radiator grille with central Mercedes star and double
slats to either side of the star, as well as the additional air intakes on the
sides. The "dropping line" apparent in the side profile dissipates towards the
vehicle's front end. The design of the headlamps, together with the
configuration of the light functions within them, is a key element of the design
concept.
The light modules and LEDs behind the headlamp cover glass have been arranged in
such a way as to create the characteristic "flare effect" for the daytime
running lamps and indicators. The so-called "flare" is made up of the feature
line within the headlamp, the LED modules for the daytime running lamps and the
bulb sets for the indicators. This signature effect gives the car its energetic
look and so helps to define a new, youthful face for Mercedes.
The perfect interplay of dynamic design and excellent aerodynamics is nowhere
more apparent than in the roof, with its smooth surfaces and taut, arcing curve.
The silhouette reveals smooth, flowing lines finishing in a flat edge. The roof
spoiler, which conveniently hides all the aerials, provides an extra sporty
touch and gives structure to the roof assembly. The beltline rises to the rear
to form a pronounced wedge-shape. The side view is distinguished by sensuously
moulded sculptural side panels and distinctive lines. The front structural edge,
above the wing, falls in what is known as a "dropping line" in a gentle arc
towards the rear. The powerfully shaped shoulder muscles above the rear axle
serve to emphasize the car's coupé-like character. A further line sweeps up from
just in front of the rear wheel arch, and then gently fades away. All these
lines give depth and dynamism to the car's profile. Dynamic side sill panels
provide a final finishing touch towards the bottom of the car, enhancing the
appearance of elegant light-footedness.
The broad emphasis of the tail end is revealed in an interplay of convex-concave
surfaces and edges. The tail lights continue the line of the muscular shoulders
back towards the rear, while their horizontal orientation emphasizes the car's
powerful breadth. The light functions are provided by fiber-optic cables and LED
modules. Here, too, the interaction between design and aerodynamics is very
clear: the surface finish of the tail lights is not only an interesting design
feature, but also improves the airflow around the vehicle thanks to defined
airflow break-away edges in the rear section.
Interior Design
The high-quality feel and sportiness of the car are continued in the interior.
Both objectives have been achieved with the help of a specific design idiom and
through the various combination options possible with the high-quality materials
selected. All trim elements have been given an electroplated finish, resulting
in real metal surfaces with "cool touch" effect. The work has been executed with
considerable care and attention to detail, so that they appear to have been
moulded in one piece.
The instrument panel is clearly divided into a wing profile-type upper section
and an aesthetically influenced lower section. The resulting effect is that the
upper section appears to be supported by a 'muscle'. The manufacturing process
used for this 'muscle' allows the creation of varying surface structures with
soft tactile qualities. By using special films with three-dimensional structures
it is possible to create a range of different surface finishes that permit an
attractive play of light. The instrument panel incorporates five round vents,
the outer rings of which have a high-quality electroplated finish. The airflow
direction is governed by an insert that is reminiscent of an aircraft turbine
and reveals a meticulous attention to detail. This too has an electroplated
finish in "silver chrome". The free-standing display screen features a black
piano-lacquer-look front panel and a flush-fitting silver frame.
The instrument cluster comprises two large round instruments, each of them with
a small round instrument set within it. When at rest, the dial needles stand at
6 o'clock. The pointer inlays are generally white, although with the sportier
design and equipment lines such as Urban and AMG Sport they are in red. The
dials on the sporty equipment lines and packages are colored silver with a
chequered flag effect. The 3-spoke steering wheel comes with 12 function buttons
and an electroplated bezel.
The centre dome and console, as well as the positioning of the various elements
such as the head unit, lower control panel, air conditioning operating unit,
stowage compartments, rotary push-button and armrest, reflect the findings of
the ergonomics experts at Mercedes-Benz.
An extensive range of seat coverings, in terms of material (e.g. leather,
fabric, Artico/fabric), color combination and also geometry, provides scope for
a broad range of individualization options. Sports seats with integrated head
restraints are available, for example, as an optional extra with all design and
equipment lines. The sporty nature of the seats is emphasized by the opening
between the upper edge of the seat backrest and the head restraint. On the back
of the front seats this opening is edged with a frame in "silver chrome" and, in
conjunction with the Light and Sight package, can also feature ambient lighting.
As well as the basic specification, which can be individualized 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
"AMG Sport".
Sporty Exclusivity
For the first time, the performance specialists from AMG 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
tires 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.
Hints of red on the AMG front and rear aprons also serve to emphasize 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.
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 kilometer.
The bandwidth of the new generation of petrol engines with a displacement of 1.6
and 2.0 liters ranges from 90 kW (115 hp) in the A 180 and 115 kW (156 hp) in
the A 200 through to 155 kW (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 80 kW (109 hp) and a maximum
torque of up to 250 Nm, while the A 200 CDI has a maximum output of 100 kW (136
hp) and torque that rises to 300 Nm. The A 220 CDI has a displacement of 2.2
liters, an output of 125 kW (170 hp) and torque of 350 Nm, delivering absolutely
exceptional performance in the A-Class.
All engines in the new A-Class feature the ECO start/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.
Suspension, Aerodynamics, Safety
The dynamism promised by the design and drive system is realized 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.
Mercedes-Benz A 250 Sport: Photo Gallery, Review (1/2) and Specifications