A/C changes from Series 1
 

They made a change to the way the A/C works that I absolutely HATE. They have made it so the A/C switches itself on.
If you cycle through the vent locations you wind up the A/C on and in recirculation. If you just turn the temp control all the way cold while in vent the A/C turns on and the vent closes.
I hate it when the car decides that it knows what I want.
This didn't happen in my 2005, but it sure does in my 2009.