All modern vehicles use some type of power assist for the braking system. The 8 cylinder models being recalled use a vacuum pump, connected to the power booster by a vacuum hose, to provide the necessary assist. The vacuum pump may leak a small amount of lubricating oil into the vacuum hose and this contamination could result in a loss of power assist, leading to increased stopping distances. Dealers will correct this concern by replacing the brake vacuum line with an improved version.
2007 BMW X5 Recalls
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 switch in the brake fluid reservoir cap to activate the brake warning lamp for low fluid levels may not work at high temperatures. If this happens, a loss of the hydraulic brake system may cause increased stopping distances, which could result in a crash. Dealers will replace the brake fluid reservoir cap free of charge. The recall began September 20, 2007.