How to troubleshoot a check engine light in your Audi A6?

The check engine light in your Audi A6 can indicate a variety of issues, ranging from simple to more serious. If the light stays on, it's important to diagnose and fix the problem right away. This question will guide you on how to troubleshoot the check engine light in your Audi A6.

The first step is to check for any visible issues such as a loose gas cap or a damaged catalytic converter. If everything looks fine, you should use a OBD2 scanner to read the trouble codes.