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  1. Other Methane/Rotten egg smell from exhaust

    Bugs, faults and irritations (8G)
    Hi guys, Noticed that my car has a methane/rotten egg smell from the exhaust. Not really apparent when driving forward (most of the time it's not there), but when I reverse it gets really bad (gagging bad). I can confirm that it's not there when going forward (sometimes it is, rarely...