Specifications

297x198_RS4_Fas09_RZ.indd 32 18.02.13 14:32
32 Suspensions
Whether on long journeys or quick trips: the
RS sport suspension gives the Audi RS 4 Avant
excellent road handling and gives you poise.
It combines precise steering characteristics,
outstanding directional stability 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 sport
suspension are made of aluminium to keep
the unsprung masses low. This allows sporty
handling and improved rolling character istics
to be achieved.
The RS sport suspension plus with Dynamic
Ride Control (DRC) is available as an option. 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 RS sport suspension plus with Dynamic Ride
Control (DRC) can be adjusted in three 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.
The fuel consumption and CO₂ emission figures can be found on page 60.
Dynamic. Sporty. Self-assured.
Your suspension shows plenty of character.
RS4_Avant_Fas18_2013_03.indd 32 30.04.13 12:51