Among the several problems in the car, the oil leaks are the most hassle one that needs immediate attention of a mechanic. Thus, oil leaks from the valve cover gasket are the most commonplace in the vehicle. If you left it unchecked, then it can cause your engine to run low on oil and cause catastrophic damage poorly. The following video defines the way to diagnose the valve cover gasket leaks in BMW X5.
https://www.youtube.com/watch?v=n8BRBtx2gcc
