I recently bought an Audi A4 and noticed that the check engine light has come on. I've checked the gas cap and that doesn't seem to be the issue. What could be causing this and how can I fix it?
ReplyThe most common cause for the Audi check engine light to come on is a faulty oxygen sensor. It's important to get this fixed as soon as possible as it can lead to decreased fuel efficiency and potential damage to the engine.
Another possible cause is a loose or damaged gas cap. Make sure the cap is securely tightened and if it appears to be damaged, replace it with a new one. This should solve the issue in most cases.
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