Page 335 of 494
X
Switch on Active Lane Keeping Assist using
the on-board compute r(Ypage 349).
Symbol :appears in the instrument
cluster.
If your speed exceeds 40 mph (60 km/h)
and lane markings are detected,
symbol :is highlighted in green .Active
Lane Keeping Assist is ready for use. Driving systems
333Driving and parking Z
Page 351 of 494

X
Press the =or; button on the
steering wheel to select the DriveAssistmenu.
X Press 9or: to select Blind Spot
Assist .
X Press the abutton.
The curren tselection is displayed.
X To activate/deactivate: press thea
button again.
Activating/deactivating Active Lane
Keeping Assist You can use the
Lane Keeping Assist function to activat
eor deactivate Active Lane
Keeping Assist (Y page 330).
X Press the =or; button on the
steering wheel to select the DriveAssistmenu.
X Press 9or: to select Lane Keeping Assist .
X Press the abutton.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When Active Lane Keeping Assist is activated,
the à symbol appears in the multifunction
display when the ignitio nis on. Maintenance menu
In the Service menu, you have the following
options:
R calling up display messages (Y page 352)
R checking the tire pressure electronically
(Y page 461)
R calling up a service due date
(Y page 426)
R checking the oil level (Y page 421) Settings menu
Introduction The
Settings menu can be used for:
R Switching the daytime running lamps on/
off
R switching Adaptive Highbeam Assist on/
off
R showing or hiding the additional
speedometer
R selecting the units for speed and distance
R activating/deactivating the radar sensor
system
Switching the daytime running lamps
on/off This function is not available in Canada.
If you have activated the
Daytime running
lights function and the light switch is in the
$ orc position, the daytime running
lamps are automatically switched on when
the engine is running.
Depending on the ambient light, the following
will additionally light up:
R parking lamps
R tail lamps
R license plate lamp
R side marker lamps
If you turn the light switch to a different
position, the corresponding lights are
switched on. If you switch off the daytime
running lamps at night, make sure that the
light switch is set to Lorc.
The factory setting is On .
X Press the =or; button on the
steering wheel to select the Settings menu.
X Press the 9or: button to select
daytime running lamps .
X Press the abutton to confirm.
X To activate/deactivate: pressa
again. Menus and submenus
349On-board computer and displays Z
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Display messages Possible causes/consequences and
M Solutions
Radar Sensors
Deactivated See
Oper. Manual The rada
rsensor system is deactivated.
X Switch on the radar sensor system (Y page 350).Active Lane
Keeping Assist
Currently
Unavailable See
Oper. Manual Active Lane Keeping Assist is deactivated and temporarily
inoperative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R there are no lane markings for a longer period.
R the lane markings are worn, dark or covered, e.g. by dirt or snow.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 289).
X Clean the windshield.
If the system detects that the camera is fully operational, the
display message disappears.
Active Lane Keeping Assist is operational again. Active Lane
Keeping Assist
Inoperative Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop. 378
Display messagesOn-board computer and displays
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