Odd sound from M54 3.0 engine 2003
Hey folks, any help would be appreciated. I've talked to several mechanics and no one has firm ID on what the problem is.
The M54 3.0 engine on my 2003 Z4 is making an odd sound when its hot. It does not make the sound when the engine is cold, and takes about 15-20min to get warm enough for the sound to start up. My car has 101k miles. I've found a Youtube video from someone else with the same problem.
It can best be heard in the video between 0:40 - 0:50. It's not the CCV, just replaced it. One theory is that its the oil pump.
Thanks in advance!