What does the Audi A3 coolant warning light mean?

My Audi A3's coolant warning light has been coming on occasionally. What could be causing this and how should I address it?

The coolant warning light could indicate a leaking or malfunctioning coolant system. It's important to have this issue addressed as soon as possible to avoid engine damage.

You may need to top off or replace your coolant. Check your Audi A3's owner's manual for guidance on which type of coolant to use and how to properly fill it.

If your coolant levels are fine, the warning light could be caused by a faulty sensor. It's best to have a trained technician diagnose and repair this issue.