Central Hydraulic Pump - Vibrations
90audi06Subject: Noise From Central Hydraulic Pump Vibrations Can Be Felt At The Steering Wheel
Model(s): 100/200
Group: 48
Number: 90-06
Date: 09/30/90
Condition:
Loose check valve in the hydraulic pump.
Production:
Tolerance of press fitting of the check valves increased.
As of: March 1989
VIN: 44_KN070100
Service:
Replace hydraulic pump. The complete hydraulic system must be thoroughly flushed to prevent later damage.