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rapid knocking sound

  1. Buying Online !!

    Welcome New Members
    Hi, I just bought a 2010 Mni Cooper S Convertible at auction, online. I left the auction centre and within 3 minutes the car started to rattle and a couple of minutes after that it started to make a machine gun-like sound around the 2k rev mark and only on acceleration. It would stop imediately...
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