General notes

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.

replace it if necessary. Check the battery in the SmartKey and replace it if necessary.
mechanical key. Unlock the driver's door using the mechanical key.
Lock the vehicle.
contacts checked at a qualified specialist Have the starter battery and the battery contacts checked at a qualified specialist workshop.

If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.

    See also:

    Introduction
    You can establish a Bluetooth® connection to the audio system or to COMAND (see the separate operating instructions). WARNING A driver's attention to the road must always be his/her prima ...

    Replacing the wiper blades
    Moving the wiper blades to a vertical position Vehicles without KEYLESS-GO Turn the SmartKey to position 1 or 2 in the ignition lock. Set the windshield wipers to position . When the wipe ...

    Vehicles with extended Off-Road Proengineering package
    Basic settings The extent to which the vehicle is raised or lowered depends on the basic setting selected. Select: • Off-road level 3 for freeing the vehicle in impassable terrain at low spe ...