Lumbar support, See “head restraints, Restraint properly – Mercedes-Benz M-Class 2009 Owners Manual User Manual
Page 101: Controls in detail

Seats
99
Do not drive the vehicle without the seat
head restraints. Head restraints are
intended to help reduce injuries during an
accident.
With a rear seat occupied, make sure to
move the respective head restraint up from
the lowest non-use position and have the
occupant adjust the head restraint
properly.
!
Do not attempt to remove front seat head
restraints. They can only be removed by
qualified technicians. We recommend that
you have this work carried out by an
authorized Mercedes-Benz Center.
1
Head restraint
2
Release button
X
Raising: Adjust the height of head restraint
1
manually by pulling it upward.
If head restraint
1
is fully retracted, push
release button
2
in direction of arrow and
pull head restraint
1
upward.
X
Lowering: Push release button
2
in
direction of arrow and press down on head
restraint
1
.
Head restraint fore and aft adjustment
Vehicles with Rear Seat Entertainment
System: When adjusting the head restraint,
make sure your fingers do not become
caught between the head restraint cushion
and the monitor. Failing to do so may lead
to injury.
X
While seated, reach behind you with both
hands and find lower edge of the head
restraint.
X
Adjust the head restraint to the desired
position by pushing or pulling on the lower
edge of the head restraint cushion.
You can adjust the contour of the driver’s seat
lumbar support to help enhance support to
your spine.
1
Curvature up
2
Less curvature
3
Curvature down
4
Greater curvature
Controls in detail
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