What is the most common cause of check engine light in Audi 80?

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Samantha 1 hour ago

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What is the most common cause of check engine light in Audi 80?

I recently bought a used Audi 80 and noticed that the check engine light keeps coming on. What could be causing this and how can I fix it?

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**John** · Answer 1 · 2026-07-02T10:15:04+00:00

The most common cause of the check engine light is a faulty oxygen sensor. It's an easy fix and relatively cheap to replace. Make sure to use a high-quality sensor and have it installed by a professional mechanic.

What is the most common cause of check engine light in Audi 80?

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