I recently noticed that my Audi A3 has a rough idle and I'm not sure what could be causing it. What steps should I take to diagnose and fix this issue?
ReplyFirst, check for any vacuum leaks. These can often cause a rough idle and can be easily fixed. If there are no vacuum leaks, you may need to clean or replace your mass airflow sensor.
Another possible cause could be a dirty or clogged fuel filter. This can restrict fuel flow to the engine and lead to a rough idle. Make sure to regularly replace your fuel filter to prevent this issue.
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