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:

    Calling up memory space info
    Select Music Register by sliding and turning the COMAND controller and press to confirm. Select Memory Information and press to confirm. The following is displayed: • storage capaci ...

    Exterior mirror out of position
    If an exterior mirror has been pushed out of position, proceed as follows: Vehicles without electrically folding exterior mirrors: move the exterior mirror into the correct position manually. ...

    Important safety notes
    WARNING The PARKTRONIC is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers alway ...