A lack of power may be noted and the Check Engine Light illuminated with various throttle system fault codes stored. Our technicians tell us this is generally caused by electrical connection issues at the throttle body. If this is the case a harness repair kit is available from Audi.
Lack of power due to throttle system fault on Audi A3
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My vehicle sounded (still does to be honest) like a tractor trailer & not even the dealer could tell me what the problem was. I noticed a lag in acceleration & the check engine light was on. The dealer said it was the clutch &changed it all out. Guess what, the vehicle was still loud as heck. I figured if the dealer gavethe car a full once over it had to be what they said it was & kept driving my loud little car. One day while driving the car just lost all power. After getting the car towed to a mom & pop shop I was told the throttle body needed to be cleaned. After the service the car at least started but it was still sluggish but I figured I just made a poor choice in the vehicle I purchased & would have to get rid of it ASAP. That was 8 months ago & I'm still driving it, the vehicle is starting to hesitate & do all the same things it did last time I had car issues. Some places say it's the alternator but I've never seen a bad alternator cause this type of problem. I think it's the throttle body again.