Active Protection
Principle
In critical situations, Active Protection prepares
the passengers and the vehicle for a potential
imminent accident.
General
Depending on the vehicle's equipment and the
national-market version, Active Protection con‐
sists of different PreCrash functions.
The system detects critical driving situations
which could potentially lead to an accident. Such
situations include:
▷ Full braking.
▷ Severe understeer.
▷ Severe oversteer.
Certain functions of some systems installed in
the vehicle can – within the system's limits –
cause Active Protection to trigger:
▷ Front-collision warning: automatic brake in‐
tervention.
▷ Front-collision warning: brake power assis‐
tance.
▷ Rear collision prevention: detection of poten‐
tial rear collisions.
Safety note
WARNING
The system does not relieve you of your per‐
sonal responsibility. System limitations may
mean that critical situations are not detected
reliably or in good time. There is a risk of acci‐
dent. Adapt your driving style to the traffic con‐
ditions. Observe the traffic situation and inter‐
vene actively if the situation warrants it.
Function
In an accident-critical situation, the following indi‐
vidual function become active as needed:
Automatic closing of the windows, leaving just a
small gap.
Following a critical driving situation without acci‐
dent, the system can be returned to the desired
setting.
PostCrash – iBrake
Principle
In certain accident situations, PostCrash can au‐
tomatically bring the vehicle to a standstill with‐
out an intervention from the driver.
General
PostCrash can reduce the risk of a further colli‐
sion and its consequences.
At a standstill
Once the vehicle has come to a halt, the brake is
released automatically.
Harder vehicle deceleration
In certain situations, it may be necessary to bring
the vehicle to a standstill more quickly than is
possible with automatic braking.
To do so, brake quickly and firmly. For a brief pe‐
riod, the braking pressure will be higher than that
achieved with the automatic braking function.
Automatic braking is interrupted.
Cancelling automatic braking
In certain situations, it may be necessary to can‐
cel automatic braking, for example if evasive ac‐
tion is required.
Cancel automatic braking:
▷ By depressing the brake pedal.
▷ By depressing the accelerator pedal.
Seite 220
CONTROLS
Safety
220
Online Edition for Part no. 01405A38CB9 - VI/21
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