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:
Useful information
This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences ...
Problems with the side windows
Problem: a side window cannot be closed
because it is blocked by objects, e.g.
leaves in the window guide.
Remove the objects.
Close the side window.
Problem: a side window cannot be closed
...
High-Tech Features
Distronic Plus takes adaptive cruise control — of which Mercedes was a
pioneer — to another level. Adaptive cruise uses a front-mounted radar device to
maintain the following distance from the car ...
