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 the on-board computer.
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:
Opening
You can open the trunk lid/tailgate
automatically using the SmartKey or the
handle in the trunk lid/tailgate.
•► Press and hold the button on the
SmartKey until the trunk lid/tailgate
...
Cruise control lever
Cruise control lever
1 To store the current speed or a higher speed
2 To store the current speed or a lower speed
3 To deactivate DISTRONIC PLUS
4 To store the current speed or to call up the la ...
Important safety notes
WARNING
Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly, adversely affect handling and fuel economy,
and are more ...