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04 Comfort and driving pleasure
Collision Warning with Auto Brake & Pedestrian Protection*
Activating/deactivating warning signals
The warning lamp is activated automatically
when the engine is started if the system is
switched on.
The warning sound can be activated/deacti-
vated separately using the options for
Off
in the menu system MY CAR under
Settings
Car settings
systems
Warning sound if risk of
collision.
04
Set warning distance
The warning distance regulates the distance at
which the visual and acoustic warnings are
deployed. Select one of the options from
Long
Normal
Short
,
or
MY CAR under
Settings
Driving support systems
Warning
Warning
distance.
The warning distance determines the system's
sensitivity. Warning distance
earlier warning. First test with
setting produces too many warnings, which
could be perceived as irritating in certain sit-
uations, then change to warning distance
Normal
.
Only use warning distance
tional cases, e.g. for dynamic driving.
*
192
Option/accessory, for more information, see Introduction.
When the adaptive cruise control is in use
the warning lamp and warning sound will be
used by the cruise control even if the colli-
sion warning system is switched off.
On
or
The collision warning system warns the
driver in the event of a risk of a collision, but
the function cannot shorten driver reaction
Driving support
time.
In order for the collision warning system to
be effective, always drive with the Distance
Alert set at time interval 4 – 5. see
page 183.
in the menu system
Even if the warning distance has been set to
Car settings
Long
Collision
late in certain situations, e.g. when there are
large differences in speed or if vehicles in
front brake heavily.
Long
provides an
Checking settings
Long
and if this
The settings required can be controlled on the
centre console display screen. Search with the
menu system MY CAR under
settings
Collision
Short
in excep-
NOTE
NOTE
warnings could be perceived as being
Settings
Driving support systems
Warning, see page 144.
Limitations
The collision warning system is active from and
including approx. 4 km/h.
The visual warning signal may be difficult to
notice in the event of strong sunlight, reflec-
tions, when sunglasses are being worn or if the
driver is not looking straight ahead. The warn-
ing sound should therefore always be acti-
vated.
On slippery road surfaces the braking distance
is extended, which may reduce the capacity to
avoid a collision. In such situations the ABS
and DSTC systems will provide best possible
braking force with maintained stability.
NOTE
The visual warning signal can be temporarily
disengaged in the event of high passenger
compartment temperature caused by
strong sunlight for example. If this occurs
then the warning sound is activated even if
it is deactivated in the menu system.
•
Warnings may not appear if the dis-
tance to the vehicle in front is small or if
Car
steering wheel and pedal movements
are large, e.g. a very active driving style.
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