G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is
a risk of an accident.
Always steer, apply the brakes or accelerate
the vehicle yourself, especially if Lane Keep-
ing Assist alerts you.
If you fail to adapt your driving style, Lane Keep-
ing Assist can neither reduce the risk of an acci-
dent nor override the laws of physics. Lane
Keeping Assist cannot take into account road,
weather or traffic conditions. 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
lane.
Lane Keeping Assist does not keep your vehicle
in its lane.
The system may be impaired or may not function
if:
R
there is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
R
there is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
R
the windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R
no or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R
the lane markings are worn away, dark or cov-
ered 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 detec-
ted
R
the lane markings change quickly, e.g. lanes
branch off, cross one another or merge
R
the road is narrow and winding
R
there are highly variable shade conditions on
the road
Activating Lane Keeping Assist
X
Activate Lane Keeping Assist using the on-
board computer; to do so, select
Standard
Standard
or
Adaptive
Adaptive
(
Y
page 183).
If you drive at speeds above 60 km/h and lane
markings are detected, the lane markings in
the assistance graphics display (
Y
page 182)
are shown in green.
When
Standard
Standard
is selected, no warning vibra-
tion occurs if:
R
you have switched on the turn signal. In this
event, the warnings are suppressed for a cer-
tain period of time.
R
a driving safety system intervenes, such as
ABS, BAS or ESP
®
.
When
Adaptive
Adaptive
is selected, no warning vibra-
tion occurs if:
R
you have switched on the turn signal. In this
event, the warnings are suppressed for a cer-
tain period of time.
R
a driving safety system intervenes, such as
ABS, BAS or ESP
®
.
R
you accelerate hard, e.g. kickdown.
R
you brake hard.
R
you steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
R
you cut the corner on a sharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system detects certain conditions and
warns you accordingly.
The warning vibration occurs earlier if:
R
you approach the outer lane marking on a
bend
R
the road has very wide lanes, e.g. a motorway
R
the system detects solid lane markings
The warning vibration occurs later if:
R
the road has narrow lanes
R
you cut the corner on a bend
Driving systems
171
Drivi
ng
and
parking
Z
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