Self-levelling suspension –shock
absorbers and –pressure
are the main components of the
system and often the major source
of error - these parts wear out more often.
Unfortunately these spare
parts are very expensive and in
cases even not available.
The wearing out of levelling suspension
successive worsening process,
often not recognized by the
For a more detailed explanation of Audi self-levelling suspension: click
The most common fault symptoms
Vehicles rear is standing
high, reduced or
not springy (hard hopping).
Cause: Pressure reservoirs
have too little
nitrogen gas pressure.
standing high and notspringy,
is not adjustable. Cause:
Pressure reservoirs have
no nitrogen gas - sometimes
associated with a damaged height
is different at LH and RH side.
reservoirs with very different
nitrogen load; one shock absorber
leak at shock. Cause: Blownshock
absorber seals (often caused by less
Rear is deepening when engine
is cut off. Cause: Leaking
shock seals ; leaking
pressure hose; leaking regulation
valve (often caused by less