Mercedes-Benz E-Class Owner's Manual page 77

COLLISION PREVENTION ASSIST
General notes
COLLISION PREVENTION ASSIST consists of
the distance warning function and adaptive
Brake Assist, which are described in the fol-
lowing section.
Distance warning function
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y page 72).
G
WARNING
The distance warning function does not react:
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
R
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
G
WARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
give an unnecessary warning
R
not give a warning
R
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation; do not rely on the distance warning
function alone.
Function
X
To activate/deactivate: activate or deac-
tivate the distance warning function in the
on-board computer ( Y page 279).
Driving safety systems
If the distance warning function is not activa-
ted, the æ symbol appears in the assis-
tance graphics display.
The distance warning function can help you
to minimise the risk of a front-end collision
with a vehicle ahead or reduce the effects of
such a collision. If the distance warning func-
tion detects that there is a risk of a collision,
you will be warned visually and acoustically.
Without your intervention, the distance warn-
ing function cannot prevent a collision.
The distance warning function issues a warn-
ing at speeds:
of around 30 km/h or more, if, over several
R
seconds, the distance maintained to the
vehicle travelling in front is insufficient. The
· distance warning lamp then lights up
in the instrument cluster.
of around 7 km/h or higher, if you very
R
quickly approach a vehicle in front. An
intermittent warning tone will then sound
and the · distance warning lamp will
light up in the instrument cluster.
X
Brake immediately in order to increase the
distance from the vehicle in front.
or
X
Take evasive action provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause the system to display a
warning.
With the help of the radar sensor system, the
distance warning function can detect obsta-
cles that are in the path of your vehicle for an
extended period of time.
From a speed of around 70 km/h, the dis-
tance warning function can also react to sta-
tionary obstacles, such as stopped or parked
vehicles.
If you approach an obstacle and the distance
warning function detects a risk of a collision,
the system will alert you both visually and
acoustically.
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Z