System limits
The sy
stem 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
Function of PRE-SAFE
®
Im
pulse Side
If an imminent side impact is detected, PRE-
S
AFE
®
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
be
tween the door and the vehicle occupant.
If PRE-SAFE
®
Impulse Side has been deployed or
is faulty, the PRE-SAFE impulse side inoperative
See Owner's Manual(/ page 459) display mes-
sage appears.
Automatic measures aer an accident
Depending on t
he 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 371)
R
switching o the engine
To start the vehicle again, switch the vehicle
o and on once more (/ page 180). 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
R
v
ehicles with hybrid drive: switching o the
hybrid system and high-voltage on-board elec-
trical system
R
unlocking the vehicle doors
R
lowering the side windows
R
displaying the emergency guide in the central
display
R
switching on the interior lighting
Function of the post-collision brake
Depending on the accident situation, the post-col-
lision brake can minimise the severity of a further
collision or even avoid it.
If an accident is detected, the post-collision brake
can implement automatic braking. When the vehi-
cle has come to a standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking by taking
the following actions:
R
braking more strongly than automatic braking
R
fully depressing the accelerator pedal with
force
58
Occupant safety
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