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General information
The congestion assistant determines speed
and distance from the vehicle in front via a ra‐
dar sensor and the position of the lane marking
via a camera.
Sensors on the steering wheel detect whether
the steering wheel is being touched.
The system is deactivated as soon as contact
with the steering wheel is no longer detected.
In order to be able to use the Congestion As‐
sistant, place your hands around the steering
wheel.
When driving with gloves or with protective
covers, contact with the steering wheel cannot
be detected by the sensors. The system in this
case cannot be used.
Notes
Personal responsibility
The system does not relieve the driver of
the responsibility to adapt his or her speed,
distance and driving style to the traffic condi‐
tions. Drive attentively, and react to the current
traffic events. Intervene actively when neces‐
sary, e.g., by braking, steering or making an
evasive maneuver, otherwise, there is danger
of an accident.◀
Functional requirements
▷ Drive on approved road type. The data on
this are stored in the navigation system.
▷ Driving on the limited access highway or
divided lane roads.
▷ Sufficient lane width.
▷ Lane marking is detected.
▷ Vehicle driving ahead is detected.
▷ Speed below 25 mph/40 km/h.
▷ Both hands on the steering wheel rim.
At a glance
Buttons on the steering wheel
Press the
button
Function
Congestion Assistant ON/OFF,
Pause, refer to page 141.
Rocker switch:
Store, change/maintain speed,
refer to page 135.
Maintain, store speed, refer to
page 135.
Resume speed, refer to
page 136.
Adjust distance, refer to
page 136.
Radar sensor
A radar sensor is located in the front bumper
for detecting vehicles on the road ahead of the
vehicle.
A dirty or covered sensor may hinder the de‐
tection of vehicles.
▷ If necessary, clean the radar sensor. Re‐
move layers of snow and ice carefully.
▷ Do not cover the view field of the radar
sensor.
Seite 140
Controls Driving comfort
140
Online Edition for Part no. 01 40 2 909 749 - VI/13
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