How to fix a malfunctioning air conditioning in an Audi A2?

I recently noticed that my Audi A2's air conditioning is not working as it should be. The air blows out, but it's just not as cold as it used to be. How can I fix this issue quickly and effectively?

Firstly, check if your car's air filter is clogged or dirty. A dirty air filter can reduce the efficiency of your air conditioning system. If it is dirty, replace it with a new one. In addition, you can try cleaning the condenser and evaporator of your air conditioning system to improve its performance.