Don't you guys ever wonder when the AC turns on. I mean, on all other cars, there is an AC button, but not on our Mercedes. So the question i think must have crossed everyone's mind is "When does the AC turn on?"

I seem to have a pretty good theory. The AC turn on when you set the climate to be lower then the outside temp reading. I've been keeping track of this for about a year and a half and this seems to be the solution.

Anyone who has another theory, please do share