Gezij Posted June 23, 2020 Share Posted June 23, 2020 Had my first audi for 3 weeks now and noticed it runs and idles terribly with the air con economy button on. Almost like a random misfire. As soon as i switch it off the blowers get much colder as it should plus the engine runs and idles great. Its a 2007 A6 Avant 2.0 SE TFSI Any help much appreciated. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted June 23, 2020 Share Posted June 23, 2020 Did you buy the car from a private individual or a dealership? If it were a dealership then I'd be taking it back for them to access it. Ive found this thread which might offer some help: https://www.audizine.com/forum/showthread.php/779675-Engine-shake-at-idle-worse-with-ac-on Cheers Steve Quote Link to comment Share on other sites More sharing options...
Gezij Posted June 23, 2020 Author Share Posted June 23, 2020 Steve Thanks for your reply. It was a private sale and didnt notice the issue on the test drive. Checked the link out but my problem goes away when the a/c is on. Theres no codes showing. I guess i will have to live with it until i can get it to an audi specialist. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted June 23, 2020 Share Posted June 23, 2020 Yea I'd get it to a garage to get a diagnostic check carried out. Quote Link to comment Share on other sites More sharing options...
Gezij Posted June 20, 2021 Author Share Posted June 20, 2021 Just to follow up on this, it turned out to be faulty #1 injector. Quote Link to comment Share on other sites More sharing options...
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