SOURCE: I need my check engine light to turn off in my 2002 Audi A6
You need to have the car scanned to address the issue that is causing the check engine light to come on. The computer will reset the check engine light once the issue has been addressed and there is not more issues. The scanner can also reset the light but if the problem is still there the light will just come on again. Good luck and hope this helps, Auto Zone scan free of charge.
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