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:
Activating/deactivating PRE-SAFE®
Brake
PRE-SAFE® Brake is only available in vehicles
with DISTRONIC PLUS.
– Press the or
button on the
steering wheel to select the DriveAssist
menu.
– Press or
to select PRE-SAFE
Brake.
– P ...
Problems with the cooling with air dehumidification function
When you press the button, the indicator
lamp in the button flashes three times or remains off. You can no longer switch
on the cooling with air dehumidification function.
X Consult a qualified ...
Using KEYLESS-GO to start the engine
WARNING
As long as the SmartKey is in your vehicle, the
vehicle can be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the eng ...