right iv got a 2007 S3 iv only owned a couple of weeks and has got a annoying knocking noise going over bumps and or uneven/pothole roads and cant seem to find the problem. it doesn't do it all the time but most the time and only on bumps or rough roads and seems to be coming from drivers side by pedals or bulkhead its completely stock other than the map. things we've changed/checked so far.............................. 1 .top mounts changed...................... 2. arb's changed........... 3. cant find any play in arb bushes, track rods, tie rods, lower arms............. 4. dropped sub frame today and cant see anything loose there or abnormal under there and everything is tight........... 5. you can hear a sort of gas noise as you go up and down speed humps. running out of ideas and wondered if anyone else has come across this or any ideas what else it could be as its doin my head in......... Thanks
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