khaitan Posted April 20, 2012 Report Share Posted April 20, 2012 Hi Everybody, nice to see Dubai based Audi Owners community. Need little help from you guys, that since 2 days my Audi A8 showing and going off check engine light. Car is always serviced regularly and no other problem has been so far. Car drives well, checked engine oil and other stuff from engine bay and everything looks great. Link to comment Share on other sites More sharing options...
Saleem Posted April 29, 2012 Report Share Posted April 29, 2012 Mostly it is CO sensor (Exhaust sensor) you may replace it and it will even reflect in fuel consumption but you must check engine ECU diagnostic trouble code (DTC) to be sure other than that sometimes it is ignition coils and the sensor is just indicating to misfire or multi misfire. Good Luck Link to comment Share on other sites More sharing options...
raven Posted April 30, 2012 Report Share Posted April 30, 2012 During what times does the check light come on and off? Does it happen constantly or only when you are driving? Link to comment Share on other sites More sharing options...
khaitan Posted April 30, 2012 Author Report Share Posted April 30, 2012 Got the diagnostic done, none precise fault found but something pointing to air filter being old and might be choking the air intake. So mechanic changed that 2 days back and no check engine light so far. Yet to confirm 100% after sometime. Thanks Saleem and Raven for all your help and advises. Cheers. Link to comment Share on other sites More sharing options...
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