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Distance warning function
Important safety notes
i
Observe the "Important safety notes"
section (
page 67).
Y
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
situation and be ready to brake.
The distance warning function is only
available in vehicles with DISTRONIC.
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
Always pay careful attention to the traffic
situation and do not rely solely on the
distance warning function.
Function
To activate/deactivate: activate or
X
deactivate the distance warning function in
the on-board computer (
After activation, the Ä symbol is
displayed in the lower multifunction
display.
The distance warning function can help you
to minimize the risk of a front-end collision
with a vehicle ahead or reduce the effects of
such a collision. If the distance warning
function detects that there is a risk of a
collision, you will be warned visually and
acoustically. The distance warning function
cannot prevent a collision without your
intervention.
Starting at a speed of around 20 mph
(30 km/h), the distance warning function
warns you if you approach a vehicle in front
very quickly. An intermittent warning tone will
then sound and the · distance warning
lamp will light up in the instrument cluster.
Brake immediately in order to increase the
X
distance from the vehicle in front.
or
Take evasive action provided it is safe to do
X
so.
For the distance warning function to assist
you when driving, the function must be
activated in the on-board computer and be
operational (
Due to the nature of the system, particularly
complicated driving conditions may cause the
system to display unnecessary warnings.
With the help of the radar sensor system, the
distance warning function can detect
obstacles that are in the path of your vehicle
for an extended period of time.
At speeds up to 40 mph (70 km/h), the
distance warning function may also detect
stationary 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 initially alert you both visually
and acoustically.
In particular, the detection of obstacles can
be impaired if there is:
page 211).
Y
dirt on the sensors or anything else
R
covering the sensors
snow or heavy rain
R
interference by other radar sources
R
the possibility of strong radar reflections,
R
for example in parking garages
Driving safety systems
page 211).
Y
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Z
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