Horns - Activated by Themselves
90bmw20 Group 61 Chassis - ElectricalBulletin Number 61 06 90 (3107)
Woodeliff Lake, NJ September 1990 Service Engineering
SUBJECT: Horn Malfunction
MODELS: All Equipped with Airbag (SRS)
Situation: Horns are activated by themselves. The malfunction may occur when driving around turns, over bumps, or when the horn is briefly (and intentionally) activated.
Causes: 1. Insufficient clearance of the upholstered cover in the contact bridge support area.
2. Possible short circuit between the contact bridge and the steering wheel in the area of the upper spokes.
Correction: The airbag unit must be removed and reworked according to the instructions given below, but only if a complaint is encountered.
All safety instructions contained in the repair manual must be strictly observed.
Important
Note: Under no circumstances is the gas generator to be separated from the airbag unit, for this or any other repair.
When refitting the airbag unit, tighten both screws slightly and center the airbag unit. Next tighten the right-hand screw (viewed in direction of travel) to 8 N-m, then tighten the left-hand screw to 8 N-m.
Warranty
Information: Covered under the terms of the BMW New Car Limited Warranty of
3 Years/36,000 Miles.
Defect code: 32 33 02 22 00
Labor operation: 00 50 834
Labor allowance: 2 FRU
Any questions concerning warranty coverage should be discussed with your District Service Manager.