Switching the split screen on and off
1. 
Press the button.
2. "Split screen"
See also:
Switching off automatically
System switches off: above approx. 9 mph/
15 km/h.
Switch on the system again if necessary. ...
Headlamp courtesy delay feature
The low beams stay lit for a short while after the
ignition is switched off, if the lamps are switched
off and the headlamp flasher is switched on.
Setting the duration
1. "Settings"
...
Adjusting
Vehicle
Equipment
...