Central Hydraulic System - Fluid Seepage

9220audi02

48-89-TO5
Oct 89


Central Hydraulic System - Fluid Seepage


5000 All
100/200 All
M.Y. 1984-89


Cause:
A. Fluid Seepage Oil loss at hose end crimp:

1. Pump to accumulator hose

2. Pressure hose, pump to steering rack bubble formation.

B. Seepage at hose connection sealing washer.
C. Oil seepage at hydraulic pump.

Production:
A. 1. Accumulator J-hose "Aeroquip" identification underneath protective hose.
As of: Nov. 1987
VIN: 44_JNO33364

Mixed build by vendors Tecalemit and Aeroquip.
As of: Jan. 1988
VIN: 44_JN211254
Further changes in preparation.

2. Improved pressure hose from new vendor.
As of: Sept. 1988
VIN: 44_KNO20850

B. Hose connections with 0-ring seal.
As of: December 1987
VIN: 44_JN211254

C. Vacuum filling of pump before functional check. 100% testing of check valve and improved sealing between halves.
As of: June 1987
VIN: 44_H_127440

Hydraulic Pump (internal, case halves) 0-rings made with Viton

As of: June 1989
VIN: 44_KNO96700


Service:
A. Replace parts. Use only improved parts from vendor Tecalemit.
Identification: Metal portion of hose yellow chromated. Stamped production week "823" and higher.
B. Replace parts.
C. Replace parts:
P/N 035 145 155GX or GV
M.Y. 1984-86 up to VIN 44_G_013844
P/N 034 145 155X or V
M.Y. 1986-89 from VIN 44_G_013845