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

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is activated, any detected changes in the
speed limit are adopted by the system.
Collision warning
If Active Distance Assist DISTRONIC is unable to
sufficiently decelerate the vehicle in order to
prevent it from approaching the vehicle in front,
you will be warned visually and acoustically. An
intermittent warning tone will then sound and
the distance warning lamp will light up in the
instrument cluster.
#
Brake immediately in order to increase the
distance from the vehicle in front.
or
#
Take evasive action provided it is safe to do
so.
Active Steering Assist
Function of Active Steering Assist
Active Steering Assist is only available for
vehicles with the Driving Assistance Pack‐
age.
R
Active Steering Assist is operational at
speeds up to 130 mph (210 km/h) and helps
you to stay in the center of the lane by
means of moderate steering interventions.
R
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.
R
Active Steering Assist can be overridden at
any time by steering the vehicle yourself.
R
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:
R
If there is poor visibility, e.g. due to insuffi‐
cient illumination of the road, or due to snow,
rain, fog or heavy spray.
R
If there is glare, e.g. from oncoming traffic,
direct sunlight or reflection from other vehi‐
cles (e.g. if the road is wet).
R
If the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera.
R
If no, or several, unclear lane markings are
present for one lane, e.g. in a construction
area.
R
If the lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
R
The distance to the vehicle in front is too
small and the lane markings thus cannot be
detected.
Driving and parking 173