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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Cosmetic Maintenance: Wash, Wax, Detailing, Repairs > Sticky crud?
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      01-18-2013, 03:12 PM   #1
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Sticky crud?

Just got my F30 a month or so ago and noticed a buildup of black gooey stuff on both sides of the car in the location shown in the picture. Does anyone else have this? I'm trying to figure out where it is coming from and how to properly clean it.
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2013 F30 335i Sport Line | Mineral Grey | Everest Grey/Black Interior | Premium | Cold Weather | Technology | HK
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      01-18-2013, 06:34 PM   #2
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I think it is the grease from the door hinges. I have some on the back doors as well. Use some bug and grease remover, then put a coat of wax over it. In future it should wipe off more easily.
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      01-18-2013, 07:29 PM   #3
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its cosmoline.

i had it on running between all my doors like that and also found some under the hood. it is used in shipping the vehicle/body parts. it is like a wax. clean it off asap or it will harden.

you can buy cosmoline remover online/at auto stores.
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