How do I troubleshoot my Audi A6 engine light?

I've noticed that my engine light is on in my Audi A6. How can I troubleshoot this issue and determine the cause of the light being on?

First, check your gas cap to see if it's loose or damaged. A loose or damaged gas cap is a common reason for the engine light to come on.

If your gas cap is secure, take your Audi to a certified mechanic who can use specialized equipment to diagnose the issue. It's important to address the issue promptly to avoid potential damage to your vehicle.

It could also be a simple fix, such as a faulty oxygen sensor, which can easily be replaced by a mechanic.