Suspension - Level Control System Inoperative
89mercedes01TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
DATE: March 1989
REF. NO. 32/34
SUBJECT: HIGH PRESSURE HOSES MODEL 126 WITH LEVEL CONTROL
High pressure hoses were installed on the above vehicles during the MarchApril 1988 production period, in which it was possible for plastic particles to break away from the inner wall of the hose and cause internal leakage in the level control system.
Effective Serial End Number Range
Model Chassis End Number Range
From To
126 A 400877 A 410719
In case of customer complaints regarding
- uncontrollable lowering of vehicle, - vehicle level at rear too low, or
- no pressure in system the high pressure hose should be inspected. To check if particles have broken off from the inner wall of the hose, simply remove and inspect the filter element in the oil reservoir. If the filter element contains plastic particles, the following procedure must be performed.
Procedure
1. Remove high pressure hose.
2. Loosen all pressure line connections.
3. Remove leveling valve.
4. Blow out all pressure lines with compressed air.
5. Replace high pressure hose, leveling valve, oil reservoir filter element and hydraulic oil.
Note: Replace suspension struts and pressure reservoirs only when previous repair attempts were unsuccessful.
Parts Information
Part Name Part Number
High pressure hose 114 997 04 82
Hydraulic pump 117 230 00 64
Filter element oil reservoir 201 327 02 91
MB Hydraulic oil 000 989 91 03 10
Suspension struts 126 320 46 13
Pressure reservoir 123 320 02 15
Leveling valve 123 320 02 58
In Case of Warranty:
Time Allowance
02-3218 Filter element, level control oil reservoir; check 0.2 hrs. | 72/73
02-3219 Level control system, inspect/repair 2.7 hrs. | 72/73
Damage Code
32531 ** Hydraulic high pressure hose; particle separation
Please enter the above description in the text field of the warranty claim.