AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System
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In order to protect the compressor from
overheating, it switches off at excess
A temperature module is integrated into the
control unit. This monitors the temperature
and is used to calculate the compressor
The calculations are based on the running
and cooling times of the compressor.
The max. running time is limited to 120 sec.
(an fault entry is made in the control unit
whenever the maximum running time is
15 seconds running time are allowed
following every 6 minutes of cooling time.
After 48 minutes of cooling time the
maximum running time of 120 seconds is
In order to protect the battery, the maximum
running time of the compressor is limited to
60 seconds after the ignition has been
switched ÒOFFÓ. The system switches off and
only reactivates after the ignition has been
switched ÒONÓ again.
Switching self-levelling on/off.
The system can be switched off using the
diagnostic tester, e.g. during repair work.
When the ignition is switched ÒONÓ, the
systemÕs off status is indicated by a ßashing
warning lamp (T34).
At a driving speed of >20 km/h the system is
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Service.For internal use only All rights reserved, including
the right to make technical
Technical status 11/00
Printed in Germany
Pneumatic suspension system
Par t 1
in the Audi A6Design and Function
Self-study programme 242