Rejecting or ending a call
Press the 
button on the steering
wheel.
If you are not in the Tel menu, you can still reject or end a call.
See also:
Centrally locking and unlocking thevehicle from the inside
You can centrally lock or unlock the vehicle
from the inside.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
The buttons are located on both front doors.
...
Closing the DEF filler cap and fuel filler
flap
– Place DEF filler cap 2 on the filler neck and
turn it clockwise.
– To close the fuel filler flap, press it in the
direction of arrow 1.
– Drive at a speed above 10 mph (16 km/h).
The Check ...
Activating the rear view camera
Make sure that the SmartKey is in position 2 in the ignition lock.
Make sure that the "rear view camera" function is selected in COMAND (see
the separate operating instructions for C ...