Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
• the doors
• the trunk lid
• the fuel filler flap

1
Locks the vehicle
2
Unlocks the trunk lid
3
Unlocks the vehicle
When unlocking, the turn signals flash once. When locking, they flash three times.
When it is dark, the surround lighting also comes on if it is activated in COMAND.
If you activate the acoustic locking
confirmation function, you will hear the
following, depending on the date of
production of the vehicle:
• an acoustic signal when locking
or
• one acoustic signal when unlocking and
three when locking.
The audible signal can be activated and deactivated using the on-board computer.
To unlock centrally: press the
button.
If you do not open the vehicle within
approximately 40 seconds of unlocking:
• the vehicle is locked again.
• the theft deterrent locking system is armed
again.
To lock centrally: press the
button.
See also:
Mounting a new wheel
WARNING
Always replace wheel bolts that are damaged or rusted.
Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be
repaired immediately. Do not continue to drive und ...
Transfer case
This section is only valid for vehicles with 4-wheel drive (4MATIC). Power is
always
transmitted to both axles.
Performance tests may only be
carried
out on a 2-axle dynamometer. The brake
...
Activating the rear view camera
Make sure that the SmartKey is in position
2 in the ignition lock.
Engage reverse gear.
The area behind the vehicle is shown in the
COMAND display with guide lines. ...
