The compressor doesn't come on in other cars. Most A/C systems have a "cycling switch" which cycles the compressor off when the pressure drops to 35psi. A/C refrigerant has a pressure/temperature relationship and at 35psi it is around 35 degrees ferenhight. It doesn't really have anything to do with the car but rather the system.

If the temperature in your area is so cold, why do you want A/C for anyway?

hope this helps.

__________________
Chris Muc

'08 R320CDI 265,000km
'15 GL350 206,000km

"You can fight without ever winning
But never ever win without a fight"

Neil Peart