General notes

If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered.

There are several ways to turn off the alarm:
SmartKey: press the  or To turn the alarm off with the SmartKey: press the button or on the SmartKey. button on the SmartKey.
or
Insert the SmartKey into the ignition lock.
or
the To deactivate the alarm with KEYLESS-GO: press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.
or
KEYLESS-GO. Lock or unlock the vehicle using KEYLESS-GO.
The SmartKey must be outside the vehicle.

    See also:

    Remote vehicle locking
    If you forget to lock your vehicle but are no longer in the vicinity of the vehicle, it can be locked for you by the Mercedes-Benz Customer Assistance Center. The vehicle can be locked remotely ...

    Introduction to destination entry
    WARNING For safety reasons, only enter a new destination when the vehicle is stationary. You could otherwise be distracted from the traffic conditions, cause an accident and injure yoursel ...

    Overview
    The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using ...