HI,
I knew to this forum and seems like there is a lot of deep knowledge here and wondering if anyone can help me out.
I also have some sort of chirping/ringing/whirring noise coming from near the PCV area. The car has now done 50,000KM and it is a 2011 n55 335i model.
I performed a quick test as described for the water test. There wasn't any bubbles at low revs, however, when I hit the throttle, I can see the water being sucked in/out.
Can this also be a dead PCV issue? The noise is really doing my head in!
I have also recently done a full engine oil flush, replacing the oil filter. I have also recently changed the boost solenoid which hasn't resolved the issue.
Any help would be much appreciated..
Here are some videos of the noise from the engine:
https://www.youtube.com/watch?v=KgVW...ature=youtu.be
https://www.youtube.com/watch?v=eND7...ature=youtu.be
ttps://www.youtube.com/watch?v=48om...ature=youtu.be