Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 54)

X Adjust the seat and move the backrest to
an almost vertical position (
Y
page 94).
X
Pull the seat belt smoothly through belt
sash guide :.
X Without twisting it, guide the shoulder
section of the seat belt across the middle
of your shoulder and the lap section across
your hips.
X Engage belt tongue ; in buckle =.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
(
Y
page 52).
X If necessary, adjust the seat belt to the
appropriate height (
Y
page 52).
X
If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see (
Y
page 56).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" (
Y
page 53).
Seat belt adjustment
The seat-belt adjustment function adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants.
The belt strap is tightened slightly when:
R you engage the belt tongue in the belt
buckle and you then turn the SmartKey to
position 2 in the ignition lock.
R the SmartKey is in position 2 in the ignition
lock and you then engage the belt tongue
in the buckle.
The seat-belt adjustment will apply a
retraction force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switch the seat-belt
adjustment on and off in the on-board
computer (
Y
page 237).
The seat-belt adjustment is an integral part of
the PRE-SAFE ® convenience function. More
information about PRE-SAFE ® can be found
in the "PRE-SAFE ® (preventative occupant
protection)" section (
Y
page 49).
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Adjust the height so that the upper part of the
seat belt is routed across the center of your
shoulder.
52
Occupant safety
Safet
y