How can I fix the air conditioning in my Audi A2?

I recently noticed that my Audi A2's air conditioning is not working properly. The air coming out of the vent is not as cool as it used to be. What steps can I take to fix this issue and get my air conditioning back to its normal functioning?

First, check the air conditioning system's fuse and replace it if necessary. If that doesn't solve the issue, there may be a leak in the system. Bring your car to a certified mechanic to have it checked and repaired.