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.
BMW 550i Recalls
Increased resistance at the electrical contact points may cause damage to the ground terminal and housing of the connector. This can result in an intermittent or permanent loss of one or more rear lamp functions (tail, brake, turn-signal, reverse). Intermittent light operation reduces the ability to warn other motorists of the driver's intentions, increasing the risk of a crash. Dealers will replace the rear lamp bulb carriers to correct this concern.
Vehicles equipped with an 8 or 12 cylinder turbocharged engine may overheat the circuit board for the auxiliary water pump. This could lead to smoldering of the pump or an engine compartment or vehicle fire. Dealers will replace the auxiliary water pump to correct this concern.
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.
On vehicles equipped with an 8 or 12 cylinder turbocharged engine, the circuit board for the electric water pump may overheat. This could lead to smoldering of the pump and/or an electrical fire in the engine compartment. Dealers will replace the auxiliary water pump 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.
The lower rubber mount for the rear shock absorber may not have been manufactured properly and may not adhere to the housing. If it separates, the driver will experience impaired handling and control of the vehicle, increasing the risk of a crash. Dealers will replace the rear shock absorber. The recall began September 13, 2006.
On 40 vehicles, the nuts securing the front control arm and tension strut to the wheel hub were not tightened to specification and could loosen over time. If the nuts loosen, vehicle handling and control could be compromised, increasing the risk of a crash. Dealers will tighten the front control arm and tension strut nuts to the correct specifications. The recall began June 28, 2006.
Certain passenger vehicles may have been built with incorrectly manufactured transmission guide plate part. This may cause the parking lock system to not activate when the transmission is placed in park. If the vehicle is parked on an incline and the parking brake is not engaged the vehicle may roll away causing an accident. The dealer will repair and replace the automatic transmission guide plate free of charge. The campaign # is 05V504000