Car problem diagnose - handbrake releasing, air condition, windscreen wiper liquid leaking etc -- 2

I need help diagnosing issues with my car. Specifically, I'm having issues with the air condition, minor issue with handbrake releasing, driver-side window automatic rising, and minor issue with windscreen liquid leaking. The car is a 2010 Audi Q7, and this issue has been going on for more than a month. I'm looking for someone who can take a look at the car and diagnose the problem so I can get it fixed. Will ask for further help to fix the issues if goes well.