A6 Sedan V6-3.2L (BKH) (2007)
Compressor/Pump: Customer Interest
Suspension - Compressor Inoperative/DTC's
43 08 16 2
018765/3
December 11, 2008.
Supersedes Technical Service Bulletin Group 43 number 08-13 dated November 3, 2008 for reasons listed below.
Affected Vehicles
43 Self-leveling compressor inoperative
Condition
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The self-leveling system cannot be adjusted any more with the MMI.
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The compressor for the self-leveling system continues to run after switching off the engine and locking the vehicle.
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One of the following DTCs may be stored:
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DTC 0453 (restricted function through excess temperature).
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DTC 1583 (leak in the system recognized).
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DTC 1770 (sender for compressor temperature of self-leveling control G290).
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DTC 1772 (signal cable of pressure sender for self-leveling control G291).
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DTC 2645 (valves for self-leveling control).
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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
N/A
Service
1. Use a direct current supply to check the compressor for the self-leveling system.
2. See the current flow diagram for the locations of the relay and the compressor.