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Lane Keeping Assist
The Lane Keeping Assist supports you at a
vehicle speed of above 40 mph when you
have set the display unit to miles in the
Display Unit Speed-/Odometer: menu in
the control system (Y page 235). When you
have set the display unit to km, the system
supports you at a vehicle speed of above
60 km/h. When the Lane Keeping Assist
detects lane markings, the system is
designed to alert you in case you leave your
lane unintentionally. A warning is usually
issued when a front wheel is on the lane
marking. An interval vibration in the steering
wheel that lasts for up to 1.5 seconds will
then alert you.
The Lane Keeping Assist monitors the area in
front of your vehicle via camera :.
The system can distinguish various
conditions in order to alert you early enough
and to avoid unnecessary warnings when
crossing lane markings.
The warning is issued sooner when
R
cutting a curve on the outside of the turn
R
driving on very wide lanes such as highway
lanes
R
the system recognizes dividing lines
because crossing them is often crucial due
to soft shoulders or guardrails behind for
example
The warning is issued later however when
R
driving on narrow lanes
R
cutting a curve on the inside of the turn
The system does not issue a warning when
R
steering, braking, or accelerating in a
clearly active manner, e.g. when changing
lanes, passing, exiting a highway
R
cutting a narrow curve
R
making a very sharp turn
R
a driving safety system such as the ABS,
the BAS, or the ESC has been activated
When setting the turn signal in either
direction, the warning will be suppressed. The
system will issue a warning if a turn signal has
been on for an extended period of time.
G
Warning!
The Lane Keeping Assist does not keep the
vehicle in the lane. The Lane Keeping Assist
is only an aid to the driver and may not always
recognize lane markings properly or fail to
recognize them at all.
The system may be impaired or unavailable
when
R
visibility is poor, e.g. due to snow, rain, fog,
or heavy spray
R
oncoming traffic, sun glare or reflection
from other vehicles
R
the camera area of the windshield is dirty,
foggy, or otherwise obstructed
R
lane markings are not present
R
lane markings are worn, dark, or covered
e.g. by snow or dirt
R
the distance to the preceding vehicle is too
short
R
when lane markings are ambiguous, for
example in road work sections
R
lane markings change rapidly, e.g. on
highway exits or turn-off lanes
R
lanes are narrow and winding
The Lane Keeping Assist cannot take road and
traffic conditions into account. It is the
driver’s responsibility at all times to be
attentive to road, weather and traffic
362
Driving systems
Controls in detail
221_AKB; 6; 20, en-US
d2ugruen, Version: 2.11.8.1
2009-09-24T13:28:17+02:00 - Seite 362