karim.hady Posted June 18, 2009 Report Share Posted June 18, 2009 Hi all, reading you guys posts has been very informative, however my dealer has not come up with any solution except "put some redex in and give it a good thumping!" which i did not do as i have been told that it does more bad than good. My audi a3 2.0tdi sport rumbles when stationary when temp is norm and cold, also my idle never sits still, always raising and falling slightly......however i do not notice any unusual sounds except the obvious increase in engine noise when the car is cold and is first started. any ideas...? :confused: thanks in advance audi a3 2.0tdi sport (remapped to 175bhp) 83,000mls (last service 79,000) Link to comment Share on other sites More sharing options...
iceman2002_uk Posted July 19, 2009 Report Share Posted July 19, 2009 yeah had this with my last A3... try the injector wiring harness... mine was misfiring at idle and the revs were all over the place, turned out that the harness was resisting too much so wasnt injecting the diesel correctly! Hope that helps Link to comment Share on other sites More sharing options...
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