How can I fix a faulty air conditioning system in my Audi A2?

My Audi A2's air conditioning system seems to have stopped working. What could be the cause of this issue and how can I troubleshoot and fix it?

It's possible that there could be a leak in the refrigerant system. You can try checking the hoses and connections for any visible damage or have a mechanic perform a pressure test to locate the leak.

Another common issue could be a faulty compressor. If this is the case, it will need to be replaced. It's recommended to have this done by a professional as the compressor is a critical component of the AC system.