How to fix AC not working on Audi 80?

My Audi 80's AC doesn't seem to be cooling properly. What could be the cause and how can I fix it?

One common cause of AC not working on the Audi 80 is a low refrigerant level. Check the AC system for any leaks and recharge the refrigerant if necessary. Also, make sure the AC compressor is functioning properly.

Another potential cause could be a faulty AC condenser. Make sure the condenser is not clogged or damaged. If needed, replace the condenser for optimal AC performance.

It could also be an issue with the AC evaporator. Check for any clogs or leaks and replace if necessary. It's important to regularly clean and maintain the AC system to prevent any complications.