I had W124s for many years. I know the 124 very well. Replaced two evaporators along the way. I recently bought a W212 E350, 2012. I am curious about the AC. I notice that when I shut the car down with the AC on, the car sits patiently for about an hour and then the blower starts up to dry the system. Seems to run about 30 minutes unless you open a door, then it stops. When driving, I can turn off the AC button but the AC continues to cool for several minutes. I notice the recirc door is activated even when the recirc switch is off. The system has a mind of its own. The W124 was very responsive to the driver's commands. This W212 seems to think it is smarter than the driver. Some of this is mentioned in the owner manual, like the recirc being on when the switch is not and the AC staying cold a while after you turn off the AC switch. Seems to be less info on these newer cars. How can I get details about how this system actually works? Thanks!

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2012 E350
2006 Callaway SC560