What is the purpose of the Audi 80's check engine light?

I noticed that the check engine light in my Audi 80 keeps turning on. What is the purpose of this light and what should I do if it keeps appearing?

The check engine light in your Audi 80 is designed to alert you to potential issues with your vehicle's engine. It is important to not ignore this warning and have your car checked by a professional as soon as possible.

When the check engine light appears, it could indicate a variety of problems ranging from minor to major. The best course of action is to bring your car to a mechanic for a diagnostic check to determine the specific issue.