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with respect to the correctness of information in this document. Copyright by AUDI AG.
18
The chassis
Subframe
The geometry of the subframe was modified by
lowering the engine position on the
4-cylinder TDI engines.
Anti-roll bars
Geometric modifications were necessary due to the
different engine position.
Guide link
The guide link bearing connecting the link and
subframe was redesigned.
Drive shafts
Vehicles with the AL420 gearbox have a newly
developed triple roller joint drive shaft with
a smaller triple roller joint.
A new special tool T40084 was developed for
installing/removing the new triple roller joint.
General
Three chassis variants are available for the Audi A4 `05. In the case of the sports suspension, ride height has
been lowered by 20mm compared to the standard suspension system. For the heavy-duty suspension, ride
height was raised by 13 mm. Both suspensions use different tuning parts (springs, shock absorbers, anti-roll
bars). In the case of the heavy-duty suspension system, additional covers are fitted to the track rod and the
trapezoidal link on the rear axle to provide effective stone chip protection.
Front suspension
The proven four-link front suspension is also used in the new Audi A4 `05 (see SSP 161).
The following new developments will be introduced:
Bearing pedestal
Anti-roll bar
Guide link
Upper transverse rod
Subframe
Spring / damper unit
Track rod
Swivel bearing
Support link Wheel bearing / wheel hub
Common part from S4 model year 2004
Common part from previous model
343_012
New part
Damper bearing
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