Suspension - Rear End Knocking Noise On Bumps

SI M33 02 09
rear Axle

January 2010
Technical Service

SUBJECT
Rattling and/or Knocking Noise from the Rear Axle

MODEL
R55, R56, R57 without Sport Suspension

SITUATION
A rattling and/or knocking noise may be heard from the rear axle and/or rear suspension while driving over uneven roads.

CAUSE
The inner diameter of the stabilizer bar mounts may be too large for this application.

PROCEDURE





Use a caliper gauge to determine whether the rear stabilizer bar is 16mm (1) (non-sports suspension). If the stabilizer bar is 16mm, replace the stabilizer mounts (2) with P/N 33 55 6 754 823.





PARTS INFORMATION





WARRANTY INFORMATION