ML 320 (163.154) V6-3.2L (112.942) (1998)
Power Steering Line/Hose: All Technical Service Bulletins
Steering - Fluid Leaks/Noises/Heavy Steering/Looseness
Date: May 22, 2006
Order No.: T-B-46.20/30c
Supersedes: T-B-46.20/30b dated April 21, 2006
Group: 46
Revision History
Revision
Date
Purpose
C
5/22/06
Condition 8 Added/Parts and Warranty Information Updated
b
4/21/06
Condition 2 Remedy and Warranty Information Updated
a
2/9/06
Condition 5 Remedy and Warranty Information Updated
-
9/14/05
Initial issue
SUBJECT:
Models 163.154/157/172/174/175
Steering Complaints
If you receive customer reports in the above model vehicles of any of the below power steering system conditions, please perform the associated remedy.
Note:
Do not replace steering gear as a remedy for any of the below conditions.
Condition 1: Steering leaking at steering gear
Cause: Steering gear internal pipes may be oxidized or corroded.
Remedy: Remove steering gear, refer to WIS document AR46.20-P-0600GH. Replace oxidized or corroded steering gear internal pipes, refer to WIS
document AR46.20-P-3501GH.
Condition 2: Steering noisy when turning.
Cause: Steering shaft dust cap and/or clamp for steering gear bellows may be damaged.
Remedy: Remove steering gear, refer to WIS document AR46.20-P-0600GH. Replace steering shaft dust cap if damaged, refer to WIS document
AR46.20-P-0004GH. Replace clamp for steering gear bellows if damaged.
Condition 3: Steering gear leaking at internal pipe fittings.
Cause: Seal at internal pipe fittings may be insufficient.
Remedy: Remove steering gear, refer to WIS document AR46.20-P-0600GH. Remove internal pipes, refer to WIS document AR46.20-P-3501GH.
Replace 0-rings at internal pipe fittings if necessary.
Condition 4 (Valid for 163.174 Only): Steering heavy or stiff during low speed turns.
Cause: Parametric valve may be malfunctioning.
Remedy: Remove steering gear, refer to WIS document AR46.20-P-0600GH. Replace parametric valve (PML), refer to WIS document
AR46.50-P-6000GH.
Condition 5: Excessive play in steering wheel and/or noisy when steering.
Cause: Inner tie rod may be damaged.
Remedy: Replace inner tie rod refer to WIS document AR46.40-P-0201GH.