Mercedes-Benz S 450 2020, Operator'S Manual

Page: 50 / 602

dent. In this case, the front passenger air bag
cannot perform its intended protective func‐
tion, e.g. when a person is seated in the front
passenger seat.
That person could, for example, come into
contact with the vehicle interior, especially if
the person is sitting too close to the cockpit.
If the front passenger seat is occupied,
always ensure that:
R
The classification of the person in the
front passenger seat is correct and the
front passenger air bag is enabled or
deactivated in accordance with the per‐
son in the front passenger seat.
R
The person is seated properly with a cor‐
rectly fastened seat belt.
R
The front passenger seat has been moved
as far back as possible.
Be sure to also observe the following further
related subjects:
R
Child restraint system on the front passenger
seat (
/
page 60).
PRE-SAFE
®
system
PRE-SAFE
®
(anticipatory occupant protec‐
tion)
PRE-SAFE
®
is able to detect certain critical driv‐
ing situations and implement pre-emptive meas‐
ures to protect the vehicle occupants.
PRE-SAFE
®
can implement the following meas‐
ures independently of each other:
R
Tightening the seat belts on the driver's seat
and front passenger seat.
R
Closing the side windows.
R
Vehicles with sliding sunroof: Close the
sliding sunroof.
R
Vehicles with memory function: Move the
front passenger seat to a more favorable
seat position.
R
Vehicles with memory function in the
rear passenger compartment: move the
outer rear seats to a more favorable seat
position.
R
Vehicles with multicontour seat: Increase
the air pressure in the seat side bolsters of
the seat backrest.
R
Vehicles with rear seat belt buckle
extenders: tighten seat belts on the outer
rear seats.
R PRE-SAFE
®
Sound: provided that the multi‐
media system is switched on, generates a
brief noise signal to stimulate the innate pro‐
tective mechanism of a person's hearing.
*
NOTE Damage caused by objects in the
footwell or behind the seat
The automatic adjustment of the seat posi‐
tion may result in damage to the seat and/or
the object.
#
Stow objects in a suitable place.
Reversing the PRE-SAFE
®
system measures
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
48 Occupant safety