BMW is recalling 696 model-year 2013 versions of the M5 and M6 coupes and convertibles due to problems with engine's oil pump, according to the National Highway Traffic Safety Administration.
The affected vehicles were manufactured from July 19 through Sept. 11 (check your vehicle's build date on a sticker on the driver-side doorjamb); a manufacturing defect could cause the oil pump's driveshaft to separate from the rotor. This could lead to a sudden loss of oil pressure and the engine could stall, increasing the risk of a crash.
BMW will notify owners later this month, and dealers will replace the affected parts free of charge. Owners can call BMW at 800-525-7417 or NHTSA's vehicle safety hotline at 888-327-4236 for more info.