Mercedes-Benz E-Class Owner's Manual page 259

system : at the top of the windscreen. Var-
ious different areas to the front, rear and side
of your vehicle are also monitored with the aid
of the radar sensor system. Active Lane Keep-
ing Assist detects lane markings on the road
and can warn you before you leave your lane
unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
This function is available in the range between
60 km/h and 200 km/h.
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must
be operational
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of an accident nor override the laws of
physics. Active Lane Keeping Assist cannot
take account of road and weather conditions.
It may not recognise traffic situations. Active
Lane Keeping Assist is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time, and for staying in the lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
give an unnecessary warning and then
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make a course-correcting brake application
to the vehicle
neither give a warning nor intervene
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There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not func-
tion if:
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
(e.g. if the road surface is wet)
the windscreen is dirty, misted up, dam-
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aged or covered, for instance by a sticker,
in the vicinity of the camera
if the radar sensors in the front or rear
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bumpers or the radiator grille are dirty, e.g.
obscured by snow
no, or several, unclear lane markings are
R
present for one lane, e.g. in a construction
area
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 the lane markings thus cannot be
detected
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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there are highly variable shade conditions
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on the road
If no vehicle is detected in the adjacent lane
and broken lane markings are detected, no
lane-correcting brake application is made.
Warning vibration through 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.
Lane-correcting brake application
G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original
lane. There is a risk of an accident.
Driving systems
257
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