Why does my Audi A3 have a rough idle?

I've noticed that my Audi A3 sometimes has a rough idle when I start it up in the morning or when I come to a stop. What could be causing this and how can I fix it?

There could be a few different reasons for a rough idle in your Audi A3. One potential cause could be a dirty air filter, which can restrict airflow and cause the engine to run rough at idle. Another possible culprit could be old or worn spark plugs, which may not be firing efficiently. In any case, I would recommend bringing your car to a trusted mechanic for an inspection and tune-up.

I had this issue with my Audi A3 as well. It turned out to be a faulty ignition coil. When this part starts to fail, it can cause rough idling and even misfires. I would suggest taking your car to an Audi dealership for a diagnostic test and possible replacement of the ignition coil.