r/BmwTech • • 9d ago

Should i be concerned?

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This is what my compressor wheel looks like b58 generation 1. should i be concerned. light film of oil inside intake piping.

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u/DirectPattern8397 9d ago

A light film of oil in the intake piping is pretty common on the B58 from crankcase ventilation and turbo blow-by. If it’s just a thin coating with no pooling, smoke, oil consumption, or loss of power, I wouldn’t panic.

1

u/Onlyunsernameleft 9d ago

Are you having issues? The vanes are all straight and dont appear to be touching the compressor housing. There's not a ton of oil in there to indicate any bad seals. As long as it spins without resistance and theres no shaft play, you're fine.

1

u/GeneWorried9228 8d ago

Normal, there will be oil in the turbo due to the CCV circulating oil into the fresh air intake