1998 BMW 740iL Q&A
1998 BMW 740iL Question: Whining noise in engine.
It appears to be a pressure issue inside the crankcase. Check for vacuum leaks and if it has a pcv valve, replace it. - Bret Bodas
I have the same problem , weird., i dont know why? remove the dip stick and the whinning , spaceship sound will end...replace it, whining sound is even loader. Help us , who really need.. - Dont Hate