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:

    Hazard warning lamps
    The hazard warning lamps automatically switch on if: - an air bag is deployed. - the vehicle is slowed down severely from a speed of over 45 mph(70 km/h) and comes to a halt. - To switch on ...

    Locking and unlocking centrally
    The SmartKey centrally locks/unlocks: - the doors - the tailgate - the fuel filler flap 1 Locks the vehicle 2 Opens/closes the tailgate 3 Unlocks the vehicle When unlocking, the turn signa ...

    Introduction
    COMAND automatically stores the previous destinations for which the route calculation has been started. If the memory is full, COMAND deletes the oldest destination. You can also save a destin ...