Mercedes-Benz E-Class Owner's Manual page 220

Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs, if:
there are vehicles or obstacles, e.g. crash
R
barriers, on both sides of your vehicle.
a vehicle approaches too closely on the
R
side.
you have adopted a sporty driving style with
R
high cornering speeds.
you brake or accelerate decisively.
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a driving safety system intervenes, such as
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® ®
ESP or PRE-SAFE
®
ESP is deactivated.
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a loss of tyre pressure or a defective tyre is
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detected.
Activating Active Blind Spot Assist
Make sure that the radar sensor system
X
( page 245) and Active Blind Spot Assist
Y
( page 241) are activated in the on-board
Y
computer.
Turn the key to position 2 in the ignition
X
lock.
Warning lamps : in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the
Blind Spot Assist currently unavail‐
able See Owner's Manual
appears in the multifunction display.
Active Lane Keeping Assist
Important safety notes
G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid and
Brake.
Active
message
Driving systems
may detect the lane markings on the road
incorrectly or not at all.
The system may be impaired or may not func-
tion if:
there is poor visibility, e.g. due to inade-
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quate illumination of the road surface,
snow, rain, fog or spray.
there is glare, e.g. from oncoming traffic,
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the sun, or reflection from other vehicles.
the windscreen is dirty, fogged up or cov-
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ered, for instance by a sticker, in the vicinity
of the camera.
several or no lane markings for a single lane
R
are present.
the lane markings are worn away, dark or
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covered up, e.g. by dirt or snow.
the distance to the vehicle in front is too
R
small and as a result the lane markings can-
not be recognised.
the lane markings on the road are unclear,
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e.g. near roadworks.
the lane markings change quickly, e.g.
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branch off, cross, or merge.
the road is narrow and winding.
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Active Lane Keeping Assist cannot detect
road and traffic conditions. It is not a substi-
tute for attentive driving. You are responsible
for the vehicle's speed, braking in good time,
and steering correctly. Always adapt your
driving style to suit the prevailing road and
weather conditions. Always pay attention to
traffic conditions and your surroundings. Oth-
erwise, you may fail to recognise dangers in
time, cause an accident and injure yourself
and others.
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