Mercedes-Benz M-Class
Mercedes-Benz M-Class

See also:
Displaying service messages
Switch on the ignition.
Press or
on the steering wheel to select
the Serv. menu.
Press or
to select the ASSYST PLUS submenu
and press to confirm. The service
due date appears ...
Rear seat head restraints
WARNING
For safety reasons, always drive with the rear
head restraints in the upright position when
the rear seats are occupied.
Keep the area around head restraints clear of
articles (e.g. ...
Problems with the SmartKey
Problem
You cannot lock or unlock the vehicle using the SmartKey.
Possible causes/consequences and Solutions
The SmartKey battery is discharged or nearly discharged.
Try again to lock/unlock th ...
