Activating/deactivating
WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired, endangering you and others.
The rear window defroster has a high current draw. You should therefore switch it off as soon as the window is clear as it only switches off automatically after several minutes.
http://strategic-human-resource.com/If the battery voltage is too low, the rear window defroster may switch off.
•► Turn the SmartKey to position 2 in the ignition lock.
•► Press the 
button.
The indicator lamp above the 
button
lights up or goes out.
See also:
Standard display
Press and hold the button on the
steering wheel until the Trip menu with odometer 1 and trip odometer 2 is shown. ...
Derestricting the shift range
Briefly press the selector lever
to the right towards D+.
or
Pull the right-hand steering wheel
paddle shifter.
The shift range is derestricted. ...
Override feature for the rear side windows
WARNING
When children ride on the vehicle's rear seats, activate the override switch.
Otherwise, the children could be injured, e.g. by trapping themselves in the rear
side window.
...