Noise In Airbag Unit

Complaint: Noise in the airbag unit on the steering wheel.

Cause/Remedy:









Axial play at the retaining bolts (75) of contact bridges (57) or radial play in triangular springs.
Move airbag unit (cushioned panel) on the steering wheel back and forth in a diagonal direction to localize the axial play.
Unscrew disarmed airbag unit from steering wheel. Observe safety regulations. Service Precautions

Steering wheel, 1st Version:
There is a positioning wheel on the right-hand contact bridge to eliminate axial play.

Example: If play is at bottom left or top right, turn positioning wheel (80) to the left using a suitable tool until the play is eliminated.





NOTE: The airbag unit need not be removed for this. There is a channel molded into the foam covering of the steering wheel in the region of the positioning wheel to receive the adjusting tool (see arrow).

Steering Wheel, 2nd Version (Standard as of 12/85):





Slacken oval-head torx socket bolts and align airbag unit on steering wheel so that it is correctly seated. Screw in both torx socket bolts a few threads. Then first tighten left-hand torx socket bolt to the prescribed tightening torque. Gently pull right-hand side of airbag unit from steering wheel and tighten torx socket bolt to the prescribed tightening torque. (6 Nm)