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.

•► Check the battery in the SmartKey and replace it if necessary.

•► Unlock the driver's door using the mechanical key.

•► Lock the vehicle using the mechanical key.

•► 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:

    Crash-responsive EASY-EXIT feature
    If the crash-responsive EASY-EXIT feature is triggered in an accident, the steering column will move upwards when the driver's door is opened. This occurs irrespective of the position of the S ...

    Turn signal lamps/side marker lamps
    Switch off the lights. Open the hood. Remove the headlamp cover (). Left-hand headlamp: detach the washer fluid reservoir (). Turn bulb holder 1 or 2 counterclockwise and pull it out. W ...

    Important safety notes
    For reasons of safety, Mercedes-Benz recommends that you drive with the lights switched on even during the daytime. In some countries, operation of the headlamps varies due to legal requirements a ...