My Audi A4 seems to be idling really rough lately. What could be causing this and how can I fix it?
ReplyFirst, check your spark plugs and replace them if needed. Old or dirty spark plugs can cause a rough idle.
Next, check your air filter and replace it if it's clogged or dirty. A dirty air filter can also cause a rough idle.
If those things don't fix the issue, it could be a problem with your fuel injectors. You may need to have them cleaned or replaced.
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