Audi 243 Service Manual page 16

System components
Warning:
The piston must not be touched during
installation or transport of the
complete suspension strut assembly as
the piston can be easily pushed back
when unpressurised.
If the sealing ring is pushed out of
position (by the air spring pressure) the
air spring will not be sealed correctly.
Wrong
243_006
16
Air springs must not be moved when
pressureless because the air bellows
cannot unroll on the piston and would
be damaged.
In a vehicle with depressurised air
springs, the relevant air springs must
be filled with the aid of the diagnostic
tester (see Workshop Manual) before
raising or lowering the vehicle (e.g. on a
vehicle lifting platform or vehicle jack).
Correct
243_007