How to troubleshoot a malfunctioning air conditioning system in an Audi A5?

The air conditioning system in my Audi A5 seems to be malfunctioning. Whenever I turn it on, it only blows hot air instead of cold. How can I troubleshoot this issue and fix it?

First, check the coolant level in your car. If it is low, that could be the reason for the hot air. If the coolant level is fine, then the issue may be with the compressor. Check for any leaks or damages in the compressor and get it repaired if needed.

Another common reason for a malfunctioning air conditioning system in an Audi A5 is a faulty temperature sensor. You can try resetting the temperature sensor by disconnecting and reconnecting the battery. If that doesn't work, it may need to be replaced.

Sometimes, the problem can be as simple as a clogged air filter. Check the air filter and clean or replace it if needed. A clogged air filter can affect the performance of your air conditioning system.