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Discussion Starter · #1 ·
I have a 08 535xi with 155k miles. It started to make an odd noise. Not sure how to describe it. I read that it could be wastegate problems so i checked around. Turned out one of them was completely out of where its supposed to be. So I put it back in. Didnt not fix it.

The noise is most prominent at idle, or at low rpms ex: idle rpms to about 3k, and when coasting. When i coast and put the car in neutral the noise is almost eleminated. The noise fluctuates with volume sometimes going from very loud to almost nothing.

Ive also read that my problem could be a lifter or injectors. But I would like to know what it is for me. Thanks!
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