Steering - Squealing/Squeaking Noise When Turning

HONKING/SQUEAKING NOISE FROM AREA OF CONTROL HEAD STEERING SYSTEM WHEN STEERING

Topic Number LI46.20-P-047170

Version 1

Design Group 46.20 Steering gear

Date 06-23-2009

Validity Model 163/168, all,
Model 203/209/211 conditional implementation,
Model 220/230 without ABC, conditional implementation

Reason for change Steering system numbers updated

Reason for block

Complaint:

Squealing/squeaking noise when steering in both directions.

The noise can mainly be heard with the engine running and warm.

Cause:

Insufficient lubrication at radial shaft sealing ring in the control head may result in squeaking/rubbing noise

Remedy:

Add the additive Lubrizol 6178 to the power steering fluid.

NOTE:
- The additive Lubrizol 6178 may only be used for specific steering system number (refer to list below)!

No more then 50 ml mat be added!

The additive can only be used once in the steering system!

- If the additive is added to a steering system that comes after the quoted steering system number, the steering system may be damaged!








The list above shows models/steering systems or the steering system number with which the additive may be used.

Procedure

1. Check whether Lubrizol has already been added, this can be seen by a yellow dot on the steering system and power steering pump (see picture in attachment).

2. Bring steering system to operating temperature (approx. 80°C)

3. Suction off 50 ml of steering oil.

4. Add 50 ml of Lubrizol 6178

NOTE:
Shake bottle well before pouring in

5. Start engine, increase idle speed to approx. 1200 rpm, turn steering to limit stop, hold there for approx. 1-2 seconds and then suddenly turn steering out of the limit stop. This procedure must be performed at both limit stops until the noise can no longer be heard.

6. On the reservoir housing on the power steering pump and on the steering system, use a yellow touch-up paint pen to make a dot, as shown in the picture (picture, refer to attachment, clean area before hand).

NOTE:
This mark is used for subsequent work on the steering system as an indication that the additive lubrizol 6178 has already been added once and may not be added again.





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Validity

NOTE:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on June 23, 2009. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.








In case of Warranty, use the table above.