Question about 2005 Audi A4

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Malfunction Indicator lamp

I have A4 Audi Turbo, yesterday I had Malfunction Indicator lamp on, Mechanic erased it for me but came back after 1 hr. he was saying it may be the transmission but I doubt it his theory.
What do you think ????
Thx

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First tell me what code did you get from the obd2 tester. your so called mechanic should have told you. you can do the same erasing by disconecting the batery for half an hour.
Is the car running good or bad and how is your mialege and is it very hot at the catalictic converter, probably it is your O2 sensor going bad , check what codes you are getting first, Vitally

Posted on Sep 09, 2009

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