Mercedes-Benz 2005 M-Class Operator's Manual page 38

Getting started
Adjusting
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
36
Manual seat adjustment
1 Seat fore and aft adjustment
2 Backrest tilt
3 Seat height
Seat fore and aft adjustment
Lift handle 1.
Slide seat to the desired position.
Allow handle 1 to reengage.
Check for proper seat engagement
before driving.
Adjust seat to a comfortable seating posi-
tion that still allows you to reach the
accelerator/brake pedal safely. The posi-
tion should be as far rearward as possible,
consistent with ability to properly operate
controls.
i
When moving the seat, make sure
there are no items in the footwell or
behind the seats. Otherwise you could
damage the seats.