I have tried everything and anything in here. Nothing works. I've used meguiars gold class, turtle wax, and zaino. Nothing seems to help/make it better. My top bars that run parallel to the roof (with the bike rack attachment points) are fine and it's the same material from what I hear. I took it to the dealer and they said it's enviromental and they will replace it under waranty because there is no fix for this.
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2002 E39 M5
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