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:
Servicing the brakes
If the red brake warning lamp lights up in the instrument cluster and you hear
a warning tone while the engine is running, the brake fluid level may be too low.
Observe additional warning messag ...
Multifunction display
Values and settings as well as display
messages are shown in the multifunction
display.
1 Description field
2 Menu bar
3 Drive program
4 Outside temperature or speed
5 Transmission position ...
Adjusting the head restraints manually
Adjusting the head restraint height
To raise: pull the head
restraint up to the desired position.
To lower: press release catch 1 in
the direction of the arrow and push the head restraint do ...