Mercedes-Benz E-Class 2011 Owner's Manual page 222

warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
Active Lane Keeping Assist camera
:
If you have selected the
Speed-/odometer(
Y
the on-board computer and select
unit of measurement, Active Lane Keeping
Assist is active from speeds of 60 km/h. If
the miles display unit is selected, the assis-
tance range begins at 40 mph.
G WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid and
may detect the lane markings on the road
incorrectly or not at all.
The system may be impaired or may not func-
tion if:
several or no lane markings for a single lane
R
are present.
there is poor visibility, e.g. due to insuffi-
R
cient illumination of the road, or due to
snow, rain, fog or spray.
there is glare, e.g. from oncoming traffic,
R
the sun, or reflection from other vehicles.
the windscreen is dirty, misted up or cov-
R
ered, for instance by a sticker, in the vicinity
of the camera.
the lane markings are worn away, dark or
R
covered up, e.g. by dirt or snow.
the distance to the vehicle in front is too
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small and the lane markings thus cannot be
detected.
Display unit
page 243) function in
km as the
the lane markings on the road are unclear,
R
e.g. near roadworks.
the lane markings change quickly, e.g.
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lanes branch off, cross one another 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.
Warning vibration in the steering wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you
by means of intermittent vibration in the
steering wheel for up to 1.5 seconds.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
you approach the outer lane marking on a
R
bend.
the road has very wide lanes, e.g. a motor-
R
way.
the system recognises solid lane markings.
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The warning vibration occurs later if:
the road has narrow lanes.
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you cut the corner on a bend.
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No warning vibration occurs if:
you clearly and actively steer, brake, or
R
accelerate.
you cut the corner on a sharp bend.
R
Driving systems
219
Z