Hello fellow volvo addicts! this is my first post to this forum, its good to be here. we just bought this wonderful wagon from my parents, we love it except for its issue with the air conditiong. the air conditioning only wants to blow cold when the outside temperature is below 70 degrees fahrenheit. If its colder than 70 deg, NO problem! it blows cold ! we had my parents neighbor fill the system with some R12 right before we purchased it. What should I be checking/looking at? summer time is coming very quickly and I dont want my wife and son to pass out from heat stroke. any help is greatly appreciated!