Self-Levelling Suspension, A6; System Overview - Audi A6 242 Service Manual

Self-levelling suspension, A6

The following chapter deals with the self-
levelling air suspension system in the Audi A6
'98. Basic information about air suspension/
self levelling has already been given in the
"Principles" chapter. As this information and
knowledge forms the basis for the next
chapter we recommend making yourself
familiar with the principles before continuing.
Overview of system
In the case of the Audi A6, an air suspension-
based self-levelling system is offered as an
optional extra. The air suspension system is
designed specifically for the rear axle
because only small loads are applied to the
front axle and consequently only small level
changes occur as a result of loading the
vehicle.
Self-levelling suspension, A6 front
wheel drive
38
The Audi A6 air suspension system comprises
the following main components:
Air springs with U-bellows are used as
suspension elements.
PDC dampers as used as shock absorbers (see
page 33).
The air supply unit with integrated air dryer,
control valves and control unit are contained
in a metal box within the air supply unit.
A level sensor detects the actual vehicle level.
PDC damper
Level sensor
Air supply unit
242_040
Air springs