[fiedor901]

Hi, I recently bought 328xi from late 2014 with 88k kilometeres on it. Knowing the most popular issues, recently I changed (preventive) the timing chain, oil pump drive, rod bearings and spark plugs.

I noticed my engine runs kinda rough on cold start, when the RPM are going down there is some car shaking going on especcialy around 1000RPM. It's not shaking violently just slightly, thinking about checking the injectors and changing coils due to that they are still OEM.

Today I also noticed the rattle after slight rev to around 2500RMP, tho its only happening after startup no matter if the engine is hot or cold. It passes after a minute or two, is that a wastegate finishing its life? (video below)

https://www.youtube.com/shorts/LMTpQgh9Owk

Maybe someone can also identify the sqeeking sound when the camera gets closer to the engine, I only noticed this on the video, barely hearable IRL.

Thanks for any help, my bad on putting this thread on wrong forum before, cheers

[fiedor901]

Bump

[Jimmert]

I think I hear the rattle, but it wouldn’t worry me that much. Probably the adjustment of the camshafts in combinatie with the timing chain.