Being drawn turbine noise. When the engine speed rises.

Hi
Being drawn turbine noise. When the engine speed rises. After visiting turbo saw a with section aluminum turbine have a low hit. I'm very grateful for your help.
Do I need to replace a part? If so, what must be replaced?

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Audi - Turbocharger Rebuild

[Nick at Pelican Parts]

The plain bearing could be faulty. Use this tech article to see how to rebuild it.

- Nick