Electrical problem
2004 Audi A4 4 cyl Two Wheel Drive Automatic 37000 miles
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Just purchased A4 2004 convertible, it has now a few times while idling it stalls. Put it in park then restart it put it in drive will not go forward. Then turn off again and goes fine. This doesn't happen of course when i bring it to audi service. they say the computer isn't saying there is a problem, they have put a new battery in and still happens mostly in the morning at a red light. They said the throttle flap was cleaned and there was some build up from the previous owner not using premium gas. I am getting the car back in the am. they drove it and had it for three days and the problem didn't happen for them, therefore they cannot diagnose and fix. Any suggestions? Thank you. Kerri M