Pre-Safe; System - Mercedes-Benz E-Class Coupe 2021 Operator's Manual

50 Occupant safety
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PRE-SAFE

system

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PRE-SAFE (anticipatory occupant protec‐
tion)
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PRE-SAFE is able to detect certain critical driv‐
ing situations and implement pre-emptive meas‐
ures to protect the vehicle occupants.
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PRE-SAFE can implement the following meas‐
ures independently of each other:
Tightening the seat belts on the driver's seat
R
and front passenger seat.
Closing the side windows.
R
Vehicles with sliding sunroof: Close the
R
sliding sunroof.
Vehicles with memory function: Move the
R
front passenger seat to a more favorable
seat position.
Vehicles with multicontour seat: Increase
R
the air pressure in the seat side bolsters of
the seat backrest.
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PRE-SAFE Sound: provided that the multi‐
R
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.
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Reversing the PRE-SAFE system measures
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
You will need to perform certain settings your‐
self.
If the seat belt pre-tensioning is not reduced,
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move the seat backrest back slightly.
The locking mechanism releases.
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Function of PRE-SAFE PLUS (anticipatory
occupant protection plus)
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PRE-SAFE PLUS can detect certain impacts,
particularly an imminent rear impact, and take
pre-emptive measures to protect the vehicle
occupants. These measures cannot necessarily
prevent an imminent impact.
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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.
Increasing brake pressure when the vehicle
R
is stationary. This brake application is can‐
celed 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 backing up
R