[tvlbott]

Here is a YouTube video of the sound. Thinking it’s the turbo. Maybe a leak somewhere? Or turbo going bad?

2017 440i GC with 92k miles.

[Billfitz]

Maybe the PCV diaphragm.

[bimmer456]

BMW reimbursed me $2500 for my PCV covered by 15 year/150k miles extended warranty, take it to the dealer to see if they will replace it free of charge. The part itself isn't expensive but they only sell it as part of the entire valve cover, and parts and labor cost $$$.

[tvlbott]

Originally Posted by bimmer456

BMW reimbursed me $2500 for my PCV covered by 15 year/150k miles extended warranty, take it to the dealer to see if they will replace it free of charge. The part itself isn't expensive but they only sell it as part of the entire valve cover, and parts and labor cost $$$.

I just replaced my cover not even 20k miles ago. If this is a PCV failure I’m just gonna do a delete. First I need to determine what it is.

[tvlbott]

Thinking I might have a boost leak at charge pipe and turbo.

[toxik]

from my research some of the cheaper chinese diaphragms, the orange ones i believe, aren’t great quality and can definitely tear in 20k miles. not saying thats your issue, but a possibility none the less.

[tvlbott]

Originally Posted by toxik

from my research some of the cheaper chinese diaphragms, the orange ones i believe, aren’t great quality and can definitely tear in 20k miles. not saying thats your issue, but a possibility none the less.

Oh I replaced the whole VC with an oem one.

[toxik]

Originally Posted by tvlbott

Oh I replaced the whole VC with an oem one.

damn really? dealer covered it or you did it out of pocket?

[tvlbott]

Originally Posted by toxik

damn really? dealer covered it or you did it out of pocket?

I did it before the whole warranty thing came out. As general maintenance at 70k miles.

[bimmer456]

Originally Posted by tvlbott

I did it before the whole warranty thing came out. As general maintenance at 70k miles.

You can still get reimbursed. I got it done because my valve cover did have minor seepage and the SA said it wasn’t really a big deal but I might want to do it eventually and it did smell like oil. But since I did have the PCV issue I submitted claim and was reimbursed.

[tvlbott]

Originally Posted by bimmer456

You can still get reimbursed. I got it done because my valve cover did have minor seepage and the SA said it wasn’t really a big deal but I might want to do it eventually and it did smell like oil. But since I did have the PCV issue I submitted claim and was reimbursed.

Sorry I didn’t state it probably but I did the repair not bmw. I do all the work on my vehicle.