Mercedes-Benz C-Class Saloon 2022 Owner's Manual page 49

46 Occupant safety – Information on the automatic functions of the restraint system
pants. These measures cannot necessarily pre-
vent an imminent impact.
®
PRE-SAFE PLUS can implement the following
measures independently of each other:
Tightening the seat belts on the driver's seat
R
and front passenger seat.
Activating the rear hazard warning lights at a
R
higher flashing frequency.
Increasing brake pressure when the vehicle is
R
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.
System limits
The system will not initiate any action in the fol-
lowing situations:
when reversing
R
or
when the vehicle is towing a trailer and there
R
is a risk of a rear impact
The system will not initiate any braking application
in the following situations:
whilst driving
R
or
when entering or exiting a parking space while
R
using Active Parking Assist
®
Function of PRE-SAFE Impulse 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
inflating 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.
®
If PRE-SAFE Impulse Side has been deployed or
PRE-SAFE impulse side inoperative
is faulty, the
See Owner's Manual display message appears
( page 465).
/
Seat belt adjustment function
®
Vehicles with PRE-SAFE : after you have fastened
the seat belt of the front seat, it may adjust itself
against your body by pulling at the shoulder until
somewhat tight. Do not hold the seat belt tightly
while it is adjusting.
This function is a reminder that all vehicle occu-
pants must wear their seat belts correctly.
You can activate and deactivate the seat belt
adjustment function using the multimedia system
( page 46).
/
Activating/deactivating seat belt adjustment via
the multimedia system
Multimedia system:
© Settings Vehicle
4 5 5
Occupant protection
5
Activate or deactivate Belt adjustment.
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