Campaign - Airbag Warning Lamp For OC3 Seat Mat Fault

SI B 65 75 06
Audio, Navigation, Monitors, Alarms, SRS

April 2009
Technical Service

This Service Information bulletin supersedes SI B65 75 06 dated February 2009.

[NEW] designates changes to this revision

SUBJECT
Airbag Warning Lamp for OC3 Seat Mat Fault

MODEL
E53 (X5) vehicles produced up to 11/2005

E60, E61 (5 Series) vehicles produced up to 11/2005

E63, E64 (6 Series) vehicles produced up to 11/2005

E65, E66 (7 Series) vehicles produced [NEW] up to 11/2005

E83 (X3) vehicles produced up to 07/2006

E85 (Z4) vehicles produced up to 11/2005

E90, E91 (3 Series) vehicles produced up to 11/2005

Only vehicles where the OC3 mat has not been replaced with the later version

SITUATION
The customer complains that the Airbag Warning Lamp (AWL) is illuminated, together with the Passenger Airbag Status Lamp (POL). The problem may be intermittent.

Depending on the vehicle concerned, one of the following OC3 seat mat faults is stored in the SRS Control Module/Satellite 95B8, 71, 93C3, 97E0.

In the interest of customer satisfaction, the warranty coverage of the vehicle for this specific airbag warning lamp issue has been extended to 10 years without mileage limit. The letter has been sent to the owners of all affected vehicles to advise of this change. Eligible vehicles will be shown in the DCS Warranty Vehicle Enquiry (see attachment).

[NEW] Note that on E65 and E66 vehicles, the OC3 mat was introduced from 03/2004. Earlier vehicles had an SBE seat occupancy detection system. However, letters were mistakenly sent to owners of all vehicles up to 11/2005. Therefore BMW will honor this extended warranty for seat mat defects on the
passenger SBE mat.

CAUSE
Microcracks in the OC3 seat mat.

CORRECTION
On a customer complaint basis only:
Follow DIS test plan.
If no other faults are found, replace the OC3 seat mat.

Note that replacement parts for some vehicles are supplied without the cover material (foam pad with integrated OC3 mat). In this case, remove the cover from the faulty seat and reinstall on the replacement
part per RA 52 13 400.

NOTE:
To avoid the possibility of a preload condition on the assembled part, be sure to follow the repair instructions. The OC3 mat will not enable if there is preload.

[NEW] For E65 and E66 with the SBE mat, refer to Repair Instruction REP 65 77 598 to replace the SBE seat mat. No programming is required.





PARTS INFORMATION





























WARRANTY INFORMATION
The warranty coverage of the vehicle, for this specific airbag warning lamp issue, has been extended to 10 years without mileage limit.

ATTACHMENTS





view PDF attachment B657506Extended_Warranty_Letter.








view PDF attachment B657506DCS_Warranty_Vehicle_Inquiry.





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