Why won't my Audi 80's AC blow cool air?

My Audi 80's AC was working fine until recently, but now it only blows hot air. I've checked the coolant levels and replaced the cabin air filter, but it still won't cool down. What could be the issue?

It's possible that your AC compressor is failing. This can happen if the compressor's bearings wear out or if there is a leak in the system. I would recommend taking it to a mechanic for a diagnostic test to determine the exact cause.