Displaying service messages
•► Switch on the ignition.
•► Press 
on the steering wheel
to select the Serv. menu.
•► Press 
to select the ASSYST
PLUS submenu and press 
to confirm.
The service due date appears in the multifunction display.
See also:
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 ...
Brilliant finish: the rear assembly of the M-Class
The rear area too of the M-Class also protects the sturdy passenger
compartment in crash situations thanks to specific deformation work, therefore
minimising the loads on the occupants. A special ...
Operating the on-board computer
The on-board computer is activated as soon
as you turn the SmartKey to position 2 in the
ignition lock.
You can control the multifunction display and
the settings in the on-board computer using ...