Mercedes-Benz C-CLASS Operator's Manual page 206

Driving systems
204
the windshield is dirty, fogged up, damaged or
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covered, for instance by a sticker, in the vicin-
ity of the camera
the radar sensors in the front or rear bumpers
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or the radiator trim are dirty, e.g. obscured by
snow
there are no, several or unclear lane markings
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for a lane, e.g. in areas with road construction
work
the lane markings are worn away, dark or cov-
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ered up, e.g. by dirt or snow
the distance to the vehicle in front is too small
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and the lane markings thus cannot be detec-
ted
the lane markings change quickly, e.g. lanes
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branch off, cross one another or merge
the road is narrow and winding
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there are strong shadows cast on the road
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If no vehicle is detected in the adjacent lane and
broken lane markings are detected, no lane-cor-
recting brake application is made.
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.
Lane-correcting brake application
If you leave your lane, under certain circumstan-
ces the vehicle will brake briefly on one side.
This is meant to assist you in bringing the vehicle
back to the original lane.
G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original
lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation.
If a lane-correcting brake application occurs,
display : appears in the multifunction display.
The brake application also slightly reduces vehi-
cle speed.
A lane-correcting brake application can be made
after driving over a lane marking detected as
being solid or broken. Before this, a warning
must be given by means of intermittent vibration
in the steering wheel. In addition, a lane with
lane markings on both sides must be recog-
nized.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been detected
in the adjacent lane. Oncoming vehicles, over-
taking vehicles and vehicles in adjacent lanes
can be detected.
A further lane-correcting brake application can
only occur after your vehicle has returned to the
original lane.
No lane-correcting brake application occurs if:
you clearly and actively steer, brake or accel-
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erate.
you cut the corner on a sharp bend.
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you have switched on the turn signal.
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a driving safety system intervenes, e.g. ESP
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®
PRE-SAFE Brake or Active Blind Spot Assist.
you have adopted a sporty driving style with
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high cornering speeds or high rates of accel-
eration.
®
ESP is switched off.
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the transmission is not in position D.
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a loss of tire pressure or a defective tire has
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been detected and displayed.
an obstacle in the lane in which you are driving
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has been detected.
®
,