How do I fix a malfunctioning air conditioning system in an Audi 80?

Whenever I turn on the air conditioning in my Audi 80, it blows out hot air instead of cold. What could be causing this issue and how can I fix it?

It is possible that there may be a leak in your air conditioning system, causing the refrigerant to escape and not cool properly. You should have a professional mechanic inspect your system and fix any leaks before refilling it with refrigerant.

Another potential cause could be a faulty compressor in your air conditioning system. This is responsible for compressing and pushing the refrigerant through the system to cool the air. If it is malfunctioning or damaged, it will need to be replaced.