Switching the split screen on and off
1. 
Press the button.
2. "Split screen"
See also:
Following part replacement
The same breaking in procedures should be observed
if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life. ...
Mobile communication devices in the vehicle
Mobile communication devices in
the vehicle
It is advised that you do not use mobile communication
devices, e.g., mobile phones, inside the
vehicle without connecting them directly to the
ex ...
Switching on/off manually
Switching on/off manually
Press the button.
▷ On: the LED lights up.
▷ Off: the LED goes out.
If Top View is displayed, switch on the backup
camera via the iDrive. ...