Camshaft Leaks Could Stall BMW Engines

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BMW will be issuing notices to approximately 156,137 BMW car and SUV owners regarding a problem that could increase the chance of an accident due to unexpected engine stalls. Owners of approximately 170,172 model year 2010-2012 BMW vehicles equipped with inline 6 cylinder engines are not covered by this recall, but will receive extended warranties to address this condition.

A quality fault with the housing bolts for the variable camshaft timing (VANOS) adjustment unit could result in the bolts loosening or breaking. The problem could lead to an internal oil leak of the unit, alerting the vehicles engine electronics that there is a problem. Limp Home mode will be activated, reducing engine power and the “check engine” or “service engine soon” warning lights will be illuminated. In rare cases the engine cannot be started after switching it off or the vehicle could stall during operation.

The vehicles affected by this problem include:

BMW will notify owners, and dealers will replace the four VANOS housing bolts for both VANOS units (intake and exhaust). For more information about the problem, contact BMW at 1-800-831-1117. The NHTSA campaign number for this is 14V-176

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