A8L Quattro Sedan V8-4.2L (BVJ) (2007)
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Compressor/Pump Relay: All Technical Service Bulletins
Suspension - Leveling Compressor Inoperative/DTC's Set
43 Self-leveling compressor inoperative
43 10 01
2018765/5
September 10, 2010
Supersedes Technical Service Bulletin Group 43 number 09-10 dated October 27, 2009 for reasons listed below.
AFFECTED VEHICLES
CONDITION
^ The self-leveling system cannot be adjusted any more with the MMI.
^ The compressor for the self-leveling system continues to run after switching off the engine and locking the vehicle.
^ One of the following DTCs may be stored:
^
DTC 0453 (restricted function through excess temperature).
^
DTC 1583 (leak in the system recognized).
^
DTC 1770 (sender for compressor temperature of self-leveling control G290).
^
DTC 1772 (signal cable of pressure sender for self-leveling control G291).
^
DTC 2645 (valves for self-leveling control).
^
DTC 2646 (plausibility of self-leveling control).
TECHNICAL BACKGROUND
Because of poor performance or failure of the compressor for air suspension, the vehicle position cannot be adjusted. As a safeguard, the control module
will lower the vehicle to the lowest position and illuminate the warning light. Drivability is not affected.
PRODUCTION SOLUTION
--
SERVICE
