How do I troubleshoot a check engine light on my Audi A3?

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Samantha Martin 3 hours ago

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How do I troubleshoot a check engine light on my Audi A3?

I recently had my check engine light come on in my Audi A3 and I'm not sure how to fix it. What steps can I take to troubleshoot and determine the cause of the issue?

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Talk Audi - Explore Audi Car Mats

**Alexis Rodriguez** · Answer 1 · 2025-05-15T16:00:05+00:00

The first thing you can do is check your gas cap. A loose or faulty gas cap can cause the check engine light to come on. If the cap is tight and in good condition, it's time to move on to other possible causes.

How do I troubleshoot a check engine light on my Audi A3?

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