The front passenger seat contains a mat that determines the presence and size of a seat occupant. This input to the airbag controller helps to determine if and how forcefully the passenger airbag should deploy in the event of a crash. The detection mat can develop cracks and fail. If this were to occur, the airbag would not deploy as expected, increasing the risk of personal injury. Dealers will repair the occupant detection mat to eliminate the possibility it may crack. Additionally certain vehicles will receive and extended warranty on the front passenger seat occupant detection mat.
2007 BMW 550i Recalls
The insulated connector for the positive battery cable may have been incorrectly attached to the trunk floor panel, which can lead to a loosening of the bolt connection. Loosening of the connection can cause an increase in electrical resistance and overheating of the cable connection, which could lead to a fire, even when the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been completed. Dealers will secure the battery bolt cable connection as necessary to correct this concern.
A static discharge from the fuel rails may affect the engine electronic control unit (ECU) and stall the engine in weather below freezing combined with low humidity. If the engine stalls, the driver may not be able to maintain speed or accelerate, and the power steering could fail, increasing the risk of a crash. Dealers will install two ground cables in the engine compartment free of charge. The recall began October 29, 2007.