C 55 AMG (203.076) V8-5.5L (113.988) (2006)
Power Steering Fluid: All Technical Service Bulletins
Steering - Squealing Noises When Turning
Date: July 19, 2006
Order No.: P-B-46.20/33a
Supersedes: P-B-46.20/33 dated March 27, 2006
Group: 46
Revision History
SUBJECT:
Model 203.040/052/054/056/061/064/065/076/081/084/087/092/261/264/281/284/740/
747/764
Model 209.356/365/375/376/456/465/475/476
Model 211.026/056/065/070/076/082/083/087/256/265/276/282/283/287
Model 220.067/170/175/179/183/184 Without ABC
Squealing / Squeaking Noises From Area of Rack-And-Pinion When Steering in Both Directions
If you receive customer reports in the above model vehicles of squealing or squeaking noises when steering in both directions when the engine is warm,
the cause may be due to insufficient lubrication at the radial shaft sealing ring in the control head.
Note:
The additive Lubrizol 6178 must only used up to a certain steering gear serial number (see list). This restriction applies to models 203120912111220
without ABC. The additive must no longer be used as of steering gear serial number stated below. If the additive Lubrizol 6178 is poured into a
steering gear after the steering gear serial number stated below, damage to the steering gear is possible.
For vehicles (except Model 211) with later steering gear serial numbers from those stated below, repair per DTB P-B-46.20/25a dated March 27, 2006.
For Model 211 with later steering gear serial numbers from those stated below, replace the steering gear per WIS Document AR46.20-P-0600T or