Throttle body oil

Tomk

Dedicated Member
Joined
Mar 8, 2023
Points
39
Hi
Just changed the mass flow rubber boot thingy on my 2.8 z3. Whilst there I thought I’d clean the throttle body.

I found a fair bit of oil in the Asc throttle body ( sorry if that’s the wrong name) and some at the main throttle body. (See photos)

Is this normal? If not any ideas on possible cause?
Cheers
 

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