Specifications

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34 Suspensions
Whether on long journeys or quick trips: the
RS 4 sports suspension gives the Audi RS 4 Avant
excellent road handling which giving you poise.
It combines precise steering characteristics,
outstanding grip and high agility.
The front axle is designed as a 5-link design.
The links are connected on a front axle bearer
made of aluminium which is bolted to the body
for reasons of rigidity. This makes precise wheel
guidance possible, while the virtual steering axle
allows for an extremely short lever, thus reducing
influences through drive and interference forces.
The rear axle construction is a trapezoidal-link
rear suspension with independent wheel
suspension, the axle carrier of which is flexibly
mounted. All the important elements of the
RS 4 sports suspension are made of aluminium
to keep the unsprung masses low. This allows
sporty handling and improved rolling
characteristics to be achieved.
The sports suspension plus with Dynamic Ride
Control (DRC) is available as an option for the
RS 4. With this suspension technology, the
nodding and pitching movements of the vehicle
around the lateral and longitudinal axes are
reduced purely hydraulically. The diagonal
dampers are connected to one another via oil
pipes and one central valve each. If the dampers
are immersed differently, for example during
fast cornering, the valves affect the oil flow
at the cushioned wheel. They increase support
there, thus reducing side tilt and increasing
driving dynamics.
The sports suspension plus with Dynamic Ride
Control (DRC) can be adjusted in 3 stages
via Audi drive select: in the comfort mode it
guarantees smooth rolling behaviour, the auto
setting supports a committed driving style and
in the dynamic position it delivers maximum
driving precision.
In order to do justice to the dynamic requirements
made on a high-performance vehicle, the
characteristic curves of the springs and dampers
as well as the rigidity of the tubular stabilisers
were developed and put through their paces
during extensive test series, including on racing
tracks.
Equally, the electromechanical power steering
was given a specific characteristic curve as part
of its adaptation to the Audi RS 4 Avant. It works
speed-dependent with variable steering support.
Thanks to the low-positioned arrangement, the
steering forces are conducted just a short distance
to the wheels, which provides for a spontaneous
steering response and gives you precise feedback
from the road. Since the steering requires almost
no energy when driving in a straight line, it also
helps to reduce fuel consumption.
From its suspension,
for instance.
can be learnt.
Superb driving performance
The fuel consumption and CO₂ emission figures can be found on page 60.
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