Locking and unlocking centrally

The SmartKey centrally locks/unlocks:
- the doors
- the tailgate
- the fuel filler flap

1  Locks the vehicle

1 2  Opens/closes the tailgate Locks the vehicle
2 3  Unlocks the vehicle Opens/closes the tailgate
3 When unlocking, the turn signals flash once. 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.

You can also set an audible signal to confirm that the vehicle has been locked. The audible signal can be activated and deactivated using the on-board computer.

- To unlock centrally: press the button. 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. button.

    See also:

    Information for customers in California
    Under California law you may be entitled to a replacement of your vehicle or a refund of the purchase price or lease price, if after a reasonable number of repair attempts Mercedes-Benz USA, LLC a ...

    Roadside Assistance button
      Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance but ...

    General information
    If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. ► Check the battery ...