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.

SmartKey and 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.
mechanical key. Lock the vehicle using the mechanical key.
battery contacts checked at a qualified specialist workshop. 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:

    Coupling up a trailer
    WARNING Vehicles with air suspension program: While you are coupling or decoupling a trailer, make sure nobody locks or unlocks the vehicle and/or opens or closes doors or the tailgate. The v ...

    Interior
    Leather upholstery is complemented by burl walnut interior trim. Standard equipment includes power windows and locks, heated power seats, a GPS navigation system and the Mercedes-Benz Tele Aid tel ...

    Instrument cluster
    Selecting the unit of measurement for distance The Display Unit Speed-/Odometer: function allows you to choose whether certain displays appear in kilometers or miles. The selected unit of measu ...