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Wheels get oily/gritty quickly

Discuss problems you have had or are having with your Z4
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StudioWizard
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Joined: Wed Mar 29, 2023 5:19 pm
Location: Los Angeles, CA, USA

Wheels get oily/gritty quickly

Post by StudioWizard » Sun May 28, 2023 10:25 pm

Hey all

My 2005 2.5i wheels get greasy/oily/gritty pretty quickly. Is this a symptom of some kind of problem with the exhaust, etc, or do all of us have this problem by default?

FYI: I just had major work done on my engine including replacing all fuel injectors, spark plugs, oil pan and valve cover gaskets, and fixing and oil leak on the vanos unit plus replacing hoses. The car is running VERY well, but I notice after cleaning the car, the wheels start getting oil or gunk on them pretty quickly If I let it go for several weeks, the wheels are nearly covered in some kind of greasy something. I've not had this issue on other cars like my Acura...

Any thoughts?

Thanks!
Current: 2005 Z4 2.5i: first time to own a BMW and loving it!
Previous: 2018 Chevy Volt / 2004 Acura RSX Type S / 1989 Acura Intergra RS / 1982 Ford Escort / 1968 VW Bus

j3nks79
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Wheels get oily/gritty quickly

Post by j3nks79 » Sun May 28, 2023 10:46 pm

Which wheels front or back?
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StudioWizard
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Posts: 331
Joined: Wed Mar 29, 2023 5:19 pm
Location: Los Angeles, CA, USA

Wheels get oily/gritty quickly

Post by StudioWizard » Sun May 28, 2023 11:14 pm

All 4 are getting greasy. The fronts might be getting a little more greasy than the backs. I do know the front brakes needs new pads/rotors. The back brakes are still pretty good in terms of wear, but I don't know if there are quality parts on either set to be honest.

Could it be the brakes?
Current: 2005 Z4 2.5i: first time to own a BMW and loving it!
Previous: 2018 Chevy Volt / 2004 Acura RSX Type S / 1989 Acura Intergra RS / 1982 Ford Escort / 1968 VW Bus

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