Air conditioner

What is your question?

My air conditioner blows cold air when just starting up, but will stop and be spotty after a while of driving, especially on hot days, and especially driving under 40 mph and or stop and go. Highway driving will help prolong cold air, but again, a hot day (80 degrees+) and the cold air becomes spotty or not at all. The fan that comes on seems to spin super fast when it’s trying to pump out cold air. It comes on and shuts off during the course of driving.

What makes this problem better or worse?

Hot days and stop and go driving make problem worse, cooler days (70 and below) are ok.

How long has your 2017 Volkswagen Jetta had this problem?

A few years, never had a mechanic look at it.