I live in a hot climate area, and you can't be driving around without the cooling system on. Since I drive everyday, I use it frequently. I was wondering how often I should get a service for it.

I'm assuming they just check for any leaks and stuff like that, and don't replace the freon that has been used?

 

These guys have a descent write up on it...http://teamvalleylandrover.co.uk/pag...ng-service.php
To summarize...if nothing is noticeably wrong...about every 3 years.

 

In a closed-loop cooling system (like the car A/C), the refrigerant(what you call Freon even though its no longer used) should not get "used" up at all -- you don't spend the refrigerant.