Mercedes-Benz A-Class Owner's Manual page 46

Closing the side windows.
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Vehicles with sliding sunroof: closing the
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sliding sunroof.
Vehicles with memory function: moving
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the front passenger seat to a more favoura‐
ble seat position.
PRE-SAFE ® Sound: provided that the multi‐
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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.
Function of PRE-SAFE ® PLUS (anticipatory
occupant protection plus)
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.
®
PRE-SAFE PLUS can implement the following
measures independently of each other:
Tightening the seat belts on the driver's seat
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and front passenger seat.
Activating the rear hazard warning lights at a
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higher flashing frequency.
Increasing brake pressure when the vehicle
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is stationary. This brake application is cancel‐
led automatically when the vehicle pulls
away.
Occupant safety
If an accident did not occur, the pre-emptive
measures that were taken are reversed.
System limitations
The system will not initiate any action in the fol‐
lowing situations:
when reversing
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or
when the vehicle is towing a trailer and there
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is a risk of a rear impact
The system will not initiate any braking applica‐
tion in the following situations:
whilst driving
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or
when entering or exiting a parking space
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while using Active Parking Assist
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