Hmm to be fair i thought it was a well known fact that BMW Air Con or their fans...basically their cooling system smells of cold piss lol even in a E39 1998 T-Reg i have still has that problem and that has only had 1 owner (bought that from new) and only done 36,000 miles and is mint!
But as i recall BMW's cooling system always stunk and now as i think of it it does smell 'damp' i just over come it by switching the 'max' button on which instantly gets all the crap stuck in the fans out and then when you feel the fresh air coming i turn the ac back off and use the normal fans at 18 degrees...hardly use the ac though, probably on a hot day on the motorway
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