In Finland, there is a compulsory yearly check up that covers all major points of the car and without passing, the car is not able to be registered. There are pros and cons to this and the major con is holding becomes expensive. Kind of the opposite to cryptocurrencies.
Luckily, air conditioning is not one of those things you would have to repair to pass the mandatory inspection. I'm strongly in favor of the inspection. They check things like steering and brakes and things like that. I do not want clunkers that could get someone killed on the road.