Why is my Audi's check engine light on and how can I fix it?

I recently noticed that the check engine light on my Audi has been illuminated. What could be causing this and how can I resolve the issue?

The most common reason for a check engine light to turn on in your Audi is a faulty oxygen sensor. I recommend getting your car diagnosed by a certified technician to determine the exact issue and have the sensor replaced if necessary. In the meantime, avoid using your car for long trips to prevent further damage.

Your Audi's check engine light may be indicating a problem with the catalytic converter. Take your car to a trusted repair shop and have them check the converter's function. If it is indeed faulty, have it replaced as soon as possible to avoid any other issues.