How to fix the air conditioning in my Audi A2?

My Audi A2's air conditioning stopped working suddenly. I've checked the fuse and it seems fine. What could be causing this issue and how can I fix it?

First, check the air conditioning compressor to see if it is running. If it's not, then it could be an issue with the compressor itself. If it is running, then the problem could be with the refrigerant level. You may need to refill the refrigerant or have a leak checked.

Another common cause of air conditioning failure in Audi A2's is a faulty condenser. If you notice any signs of leaking or damage on the condenser, it may need to be replaced. It's best to take it to a certified mechanic for a proper diagnosis.