Mercedes-Benz S-Class Saloon 2021, Owner'S Manual

Page: 64 / 621

FFunction of PRE-S unction of PRE-SAFE AFE
® ®
PL PLUS (anticipat US (anticipator ory occu- y occu-
pant prot pant protection plus) ection plus)
PRE-SAFE ® PLUS can detect certain impacts, par-
ticularly an imminent rear impact, and take pre-
emptive measures to protect the vehicle occu-
pants. These measures cannot necessarily pre-
vent an imminent impact.
PRE-SAFE
®
PLUS can implement the following
measures independently of each other:
R
Tightening the seat belts on the driver's seat
and front passenger seat.
R
Activating the rear hazard warning lights at a
higher ashing frequency.
R
Increasing brake pressure when the vehicle is
stationary. This brake application is cancelled
automatically when the vehicle pulls away.
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
Syst
System limits em limits
The system will not initiate any action in the fol-
lowing situations:
R
when reversing
or
R
when the vehicle is towing a trailer and there
is a risk of a rear impact
The system will not initiate any braking application
in the following situations:
R
whilst driving
or
R
when entering or exiting a parking space while
using Active Parking Assist
FFunction of PRE-S unction of PRE-SAFE AFE
® ®
Im Impulse Side pulse Side
If an imminent side impact is detected, PRE-
SAFE ® Impulse Side can pre-emptively move the
front seat vehicle occupant's upper body towards
the centre of the vehicle. It does this by rapidly
in ating an air cushion in the outer seat side bol-
ster of the seat backrest on the side on which the
impact is anticipated. This increases the distance
between the door and the vehicle occupant.
VVehicles wit
ehicles with E-A h E-ACTIVE BOD CTIVE BODY C Y CONTR ONTROL: OL: the body
can also be slightly raised.
If PRE-SAFE
®
Impulse Side has been deployed or
is faulty, the PRE-SAFE impulse side inoperative
See Owner's Manual (
/
page 486) display mes-
sage appears.
AAut utomatic measur omatic measures es a er a er an accident an accident
Depending on the type and severity of the acci-
dent, and depending on the vehicle's equipment,
the following measures can be implemented, for
example:
R
automatic braking (post-collision brake)
R
activating the hazard warning lights
R
triggering an automatic emergency call
(
/
page 401)
R
switching o the engine
To start the vehicle again, switch the vehicle
o and on once more (
/
page 201). Depend-
ing on the type and severity of the accident,
you may no longer be able to start the vehicle.
R
switching o the fuel supply
Occupant safety 61 61