On a small number of vehicles, the combined charging unit (CCU) may not have been assembled correctly. As a result, power from the high-voltage battery could be interrupted while driving. If this happens, the vehicle could stall and lose power to the wheels.
A sudden loss of power could increase the risk of a crash.
BMW will notify owners by mail and advise you to take your vehicle to a dealership to replace the high-voltage battery combined charging unit (CCU).