See also:

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. - ...

Shift ranges
WARNING   Always wait until the procedure of shifting from HIGH RANGE to LOW RANGE – and from LOW RANGE to HIGH RANGE – has been entirely completed. During this procedure do not turn o ...

Adjusting the head restraints manually
The head restraints must only be removed at a qualified specialist workshop. Mercedes-Benz recommends that you use a Mercedes-Benz Center for this purpose. ► If the head restraint is f ...