What are some common problems with the Audi 80's air conditioning system?

I recently bought a used Audi 80 and noticed that the air conditioning isn't working properly. It blows out warm air instead of cold and I'm not sure what's causing the issue. Can anyone offer some insight?

One of the most common issues with the Audi 80's air conditioning system is a faulty compressor. This can be caused by wear and tear or low refrigerant levels. I would suggest getting the compressor checked and replaced if necessary.

Another potential cause for the warm air could be a clogged or dirty AC condenser. This can happen over time and can be easily cleaned or replaced. It's always a good idea to regularly check and clean the condenser to ensure proper functioning of the AC system.