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:
Engine oil viscosity
Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an ...
Driving systems
Display messages
The red distance
warning lamp lights up
while the vehicle is in
motion. A warning tone
also sounds.
Possible causes/consequences and ►
Solutions
Risk of accident
The ...
Switching the display design
Select Settings using the
button
and confirm with the button.
Select Day Mode, Night Mode or
Automatic using the buttons
and press the button to confirm.
The icon indicates the curren ...