What is the biggest issue with BMW?
Oil Leaks. Despite the fact that it is not a problem with the newer versions of BMW, oil leaks are the most common problem you may face with BMWs. Occasionally, oil leaks from the valve corners or transmission are noticed in BWM. It may be because of a malfunctioning fuel pump. One of the most frequent BMW repairs involves the cooling system. Radiators, water pumps, and thermostats are known weak points, and when they fail, overheating quickly follows. Because BMW engines run at higher operating temperatures than many other cars, even minor coolant leaks can lead to serious damage if ignored.