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:

    Important safety notes
    You can limit the opening angle of the tailgate. This is possible in the top half of its opening range, up to approximately 4 in (10 cm) before the stop. Make sure there is sufficient cleara ...

    Vehicle Overview
    More than one automaker would like to believe its sport utility vehicle is the “ultimate” example. Mercedes-Benz is taking a step in that direction with the new G500 (G-Class), which evolved from ...

    Operating the panorama roof with power tilt/sliding panel
    Opening and closing Overhead control panel 1 To raise 2 To open 3 To close/lower The panorama roof with power tilt/sliding panel can only be operated when the roller sunblind is open. Tur ...