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[:'(] When driving along with the windows open on my 924S there is a strong smell of exhaust/fuel fumes. If I close the windows, the smell clears almost immediately. Recently I found that the fuel tank expansion breather pipe had become separated in the boot but having joined it back together this has made no difference. Any thoughts on why these fumes are being dragged in? I have had a quick shufti at the exhaust system and I can't see any obvious holes or gaps. I have read that on 944's there is a carbon filled fuel filter that can become blocked and cause a similar problem, is this applicable to the 924S?