Mercedes-Benz E-Class Wagon, Operator'S Manual

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you to stay in the center of the lane by
means of moderate steering interventions.
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It uses the vehicle in front and the lane mark‐
ings as a reference depending on the driven
speed.
R
Active Steering Assist requires you as the
driver, to keep your hands on the steering
wheel at all times so that you are able to
intervene at any time to correct the course of
the vehicle and keep it in lane.
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Active Steering Assist can be overridden at
any time by steering the vehicle yourself.
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When the system is actively steering, the
è symbol is shown in green in the multi‐
function display.
System limitations of Active Steering Assist
Active Steering Assist has a limited steering tor‐
que for lateral guidance. In some cases, the
steering intervention is not sufficient to keep the
vehicle in the lane.
If the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches to passive mode. The system provides
no support in this case. During the transition
from the active to passive status, the è sym‐
bol is shown as enlarged and flashes yellow.
Once the system is passive the è symbol is
shown as gray in the multifunction display.
The system may be impaired or may not function
in the following instances:
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If there is poor visibility, e.g. due to insuffi‐
cient illumination of the road, or due to snow,
rain, fog or heavy spray.
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If there is glare, e.g. from oncoming traffic,
direct sunlight or reflection from other vehi‐
cles (e.g. if the carriageway is wet).
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If the windshield is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera.
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If no, or several, unclear lane markings are
present for one lane, e.g. in a construction
area.
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If the lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
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The distance to the vehicle in front is too
small and the lane markings thus cannot be
detected.
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If the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
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The carriageway is narrow and winding.
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If there are highly variable shade conditions
on the carriageway.
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If there are obstacles such as object markers
on the lane or projecting out into the lane.
The system does not provide assistance in the
following conditions:
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On very sharp bends.
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When towing a trailer.
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If you actively change lane without switching
on the turn signal indicator.
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If you switch on the turn signal indicator and
the conditions for activating Active Lane
Change Assist are not fulfilled.
Activating Active Steering Assist
Requirements:
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ESP ® must be activated, but not intervening.
Driving and parking 183