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:

    Showing the distance display
    This function is only available with DISTRONIC PLUS. Press the or button on the steering wheel to select the DriveAssist menu. Press the or button to select Distance Display. Press ...

    Information about driving abroad
    Converting to symmetrical low beam when driving abroad: switch the headlamps to symmetrical low beam in countries in which traffic drives on the opposite side of the road to the country where ...

    Stowage well under the trunk floor
    The TIREFIT kit, the vehicle tool kit, etc. are located in the stowage compartment. To open: pull handle 1 upwards. Hook handle 1 into rain trough 2. Unhook the handle before again b ...