I just purchased a used Audi A1 and noticed that it has a rough idle whenever I come to a stop or when I'm at low RPMs. What could be causing this issue and how can I fix it?
ReplyIt's common for Audis to have rough idles due to carbon buildup in the throttle body. I recommend getting it cleaned by a professional mechanic.
Another possibility is a faulty idle control valve. You can try cleaning it yourself with some carburetor cleaner, but if that doesn't work, it's best to have it replaced.
Make sure to check for any vacuum leaks, as they can also cause a rough idle. You can use a smoke test or soapy water to locate any leaks.
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