Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
- the doors
- the trunk lid/tailgate
- the fuel filler flap


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:
The spray nozzles are misaligned
The windshield washer fluid from the spray
nozzles no longer hits the center of the
windshield. The spray nozzles are misaligned.
Have the spray nozzles adjusted at a
qualified specialist work ...
Driving with summer tires
At temperatures below 45 °F (+7 °C), the
elasticity of summer tires and therefore also
traction and braking capability are reduced
considerably — equip your vehicle with
M+S tires. Using summe ...
DISTRONIC PLUS displays in the
multifunction display
General notes
You can select the distance display in the
Assistance menu of the onboard
computer.
Display when DISTRONIC PLUS is
deactivated
Select the Distance Display function
using the ...
