Who knows what this it?

General conversations about BMW E28s and the people who own them.
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Alberto89
Posts: 129
Joined: May 04, 2021 5:24 AM
Location: Netherlands

Who knows what this it?

Post by Alberto89 »

I have been looking at a "yellow / brown stuff" under my hood for years since I got my BMW. I suspect this is something against rust like tectyl. Have you seen this before? I think it's very ugly, would you take it away or leave it? It doesn't come off just like that, I tried it with WD-40 and it is easy with that, just don't know if WD-40 is not bad for the paint? I got a photo of the white e28 from google, it has it too.

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stuartinmn
Posts: 9380
Joined: Feb 12, 2006 12:00 PM
Location: Minneapolis

Re: Who knows what this it?

Post by stuartinmn »

It's cosmoline, or some similar product (I don't know what it was called in German). It's common on BMWs of this era, and was put on as a rust protectant. WD-40 may work to soften it up and won't damage the paint, but people have used various other cleaners and methods to remove it - if you search here on the forum using the word cosmoline, you should be able to find other people's responses.
Alberto89
Posts: 129
Joined: May 04, 2021 5:24 AM
Location: Netherlands

Re: Who knows what this it?

Post by Alberto89 »

Thanks for the tip!
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