 Bought this car in November 2010 with 50k miles as a CPO. Water pumps are electric and go out every 50k miles or so, covered under cpo. Injectors on this car are notorious for failing, had 3 fail on my car also covered under cpo. Finally the condensor was leaking also replaced under warranty. I sold the car recently for a good price as it still had one year left on the maintenance and warranty. But the new owner reported serpentine belt failure. This is due to a bad subfram design and driver side engine mount which allows the belt to hit the subframe, over time the belt will shear and WILL FAIL. BMW has a "New" subframe but will not cover costs to fix their mistake. Idiots. 