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

My Audi 80's air conditioning system doesn't seem to be working properly. The air blows out but it's not very cool and doesn't have much pressure. How can I troubleshoot and fix this issue?

First, check the refrigerant levels in your air conditioning system. Low levels of refrigerant can cause your AC to blow out lukewarm air. If the levels are low, you can refill them yourself or take your car to a mechanic. Be sure to check for any leaks in the system as well.

Another common issue could be a faulty compressor. This can cause your AC to not blow cool air, or to have inconsistent temperatures. You may need to replace the compressor if it's malfunctioning.