What should I do when my Audi A4's check engine light turns on?

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Samantha Green 1 month ago

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What should I do when my Audi A4's check engine light turns on?

I've noticed that my check engine light has turned on in my Audi A4. What could be the possible causes and how should I address this issue?

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Talk Audi - Explore Audi Car Mats

**Peter Johnson** · Answer 1 · 2025-03-14T00:00:07+00:00

First, check your gas cap. A loose or damaged gas cap can trigger the check engine light. If the gas cap seems fine, then you should take your car to a certified mechanic for a diagnostic check.

What should I do when my Audi A4's check engine light turns on?

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