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:
Deactivating/activating ESP® (except AMG vehicles)
WARNING
ESP® should not be deactivated during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do no ...
Starting procedure with the SmartKey
To start the engine using the SmartKey instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
X Turn the SmartKey to position 3 in the ignition lock () and release
it as ...
Engine oil
Vehicles with a diesel particle filter:
If the vehicle is mostly driven for short
distances, it is possible that malfunctions
may occur during the automatic cleaning of
the diesel particle fil ...