General notes

If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key.

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:

the SmartKey: press the  or To turn the alarm off with the SmartKey: press the button on the SmartKey. or or button on the SmartKey.

or

ignition lock. Insert the SmartKey into the ignition lock.

or

KEYLESS-GO: 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. The SmartKey must be outside the Lock or unlock the vehicle using KEYLESS-GO. The SmartKey must be outside the vehicle.

If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically.

flap: insert the SmartKey in the ignition lock. To unlock the fuel filler flap: insert the SmartKey in the ignition lock.

    See also:

    Adjusting the lumbar support
    Vehicles without the memory function: You can adjust the contour of the front seats so as to provide optimum support for your back. Move adjustment lever 1 in the direction of the arrow until the ...

    Displaying real-time traffic reports
    If necessary, switch to navigation mode and show the menu. Select Traffic in the navigation system menu bar by turning the COMAND controller and press to confirm. If you see the No traff ...

    System self-test
    After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs: the indi ...