Thread: Strange Oily Residue in Engine Compartment
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      08-01-2020, 03:29 PM   #3
BetweenTheWheels
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Drives: 228i M Sport
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Quote:
Originally Posted by MarcoZandrini View Post
It's cosmoline, the rust proofing that BMW sprays in the areas that are prone to rust.
Wow, even 6 years after it was built I'd see it in droplets like this?
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