2011 MERCEDES-BENZ M-CLASS SUV lane assist

R
the lane markings change quickly, e.g.
lanes branch off, cros sone anothe ror
merge.
R ther oad is narrow and winding.
Active Lane Keeping Assist cannot detect
road and traffic conditions. It is not asubsti-
tute for attentive driving.Y ou are responsible
for the vehicle's speed ,braking in good time,
and steering correctly .Always adapt your
driving style to sui tthe prevailing roa dand
weather conditions. Alway spay attention to
traffic condition sand your surroundings. Oth-
erwise, you may fail to recognise dange rsin
time, cause an accident and injure yourself
and others.
Warning vibra tion in th esteering wheel
Aw arnin gmay be given if afront wheel
passes ove ralane mar king. You will then be
warned by means of an intermittent vibration
in the steering wheel for up to 1. 5seconds.
In order that you are warned only when nec-
essary and in good tim eifyou cross the lane
marking, the system recognises cer tain con-
ditions and warns you accordingly.
The warnin gvibration occur searlier if:
R you approach the outer lane markin gona
bend.
R the road has ver ywide lanes, e.g. amotor-
way.
R the system recognises solid lane markings.
The warnin gvibration occur slater if:
R the road has narrow lanes.
R you cut the corner on abend.
Lane-correcting brak eapplication
If you leave your lane unde rcertain cir cum-
stances, the vehicle will brake briefl yonone
side. Thi sisdesigned to help you brin gthe
vehicle bac kinto the original lane.
Thi sfunction is available in the range between
60 km/ hand 200 km/h.
Al ane-correctin gbrake applicatio ncan only
be made after driving over asolid, recognis-
able lane marking. Befor ethis, awarning must be emitted by means of intermittent
vibration in the steering wheel. In addition, a
lane with lane markings on both sides must
be recognised. The brake application also
slightly reduces driving speed.
If al ane-correcting brake application occurs,
the following appears in the multifunction dis-
play: i
Afurther lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane. G
WARNING
Active Lane Keeping Assis tdoes not keep
your vehicle in its lane. It is only an aid
designed to assist driving. It is not asubstitute
for attentive driving. Corrective braking may
not always be sufficient to return your vehicle
to its original lane. In such cases, you must
steer the vehicle yourself to ensure that it
does not leave the lane.
Active Lane Keeping Assis tcannot detect the
current traffic situation or other road users.
Ensure at all times that there is sufficient lat-
eral distance between you and other road
users or obstacles .Inrare cases, broken lines
or certain structures on the road surface may
be detected by the system as solid lane mark-
ings. You can, for example, countersteer gen-
tly at any time to cancel inappropriate braking
action, e.g. if you intentionally drive across a
solid lane marking.
Active Lane Keeping Assis tcannot take
weather conditions into account.
You are responsible for the vehicle's speed,
correct steering and for braking in good time.
Always adapt your driving style to suit the
prevailing road and weather conditions.
Always pay attention to traffic conditions and 216
Driving systemsDrivin
gand parking

your surroundings. Otherwise, you may fail to
recognise danger
sintime,cause an accident
and injur eyourself and others.
No lane-correcting brak eapplication occurs
if:
R you clearly and acti vely steer ,brake ,or
accelerate.
R you cut the corner on ashar pbend.
R you have switched on the tur nsignals.
R ad riving safet ysystem intervenes, such as
ESP ®
,P RE-SAFE ®
Brak eorA ctive Blind
Spot Assist.
R you have adopted asport ydriving style with
high cornerin gspeeds or high rates of
acceleration.
R on vehicles with atrailer to whitch, the
electrical connection to the trailer has been
correctly established.
R ESP ®
is deactivated.
R the transmission is not in position D.
R the Off-road program is activated (vehicles
without the ON&OFFROA Dpackage).
R Off-road program 1or2isactivated (vehi-
cles with the ON&OFFROAD package).
R the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
R al oss of tyr epressure or adefective tyre
has been detected and displayed.
Activ eLaneK eeping Assist does no tdetect
road and traffic conditions .Aninappropriate
brake applicatio nmay be interrupted at any
time if:
R you steer slightly in the opposite direction.
R you use aturn signal.
R you clearly brake or accelerate.
Al ane- correcting bra keapplication is inter-
rupted automatically if:
R ad riving safet ysystem intervenes, such as
ESP ®
,P RE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longe rberecognised. Activating Active Lane Keeping Assist
X
Switch on Active Lan eKeeping Assist using
the on-boar dcomputer ;todoso, select
Standard or
Adaptive (Y
page 245).
Symbol :appears in the multifunction
display.
If Standard is selected, no warnin
gvibra-
tion occur sif:
R you have switched on th eturn signals .In
this event, the warnings are suppressed
for acertain period of time.
R ad riving safety system intervenes, such
as ABS, BAS or ESP ®
.
If Adaptive is selected, no warning vibra-
tio no ccurs if:
R you have switche donthe tur nsignals. In
this event, the warnings are suppressed
for acertain period of time.
R ad riving safety system intervenes, such
as ABS, BAS or ESP ®
.
R yo ua ccelerate hard ,e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid
an obstacle or chang elane quickly.
R you cut the corner on ashar pbend.
Trailer towing
If you attach atrailer, make sure that yo uhave
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Driving systems
217Drivingand parking Z

For further information on disp
laying the
transmission position, see (Y page 146).
The following messages can appea rinthe
multifunction display:
Xj Y Active Parking Assist
(Y page 194)
¯ Cruise control (Y page 170)
LIM SPEEDTRONIC (Y
page 172)
fDSR DSR (Y
page 220)
Ç Off-road programme
(Ypage 222)
LOW RANGE LOW RANGE off-road gear
(Y page 223)
è Rear window wiper
(Ypage 117)
_ Adaptive Highbea mAssist
(Y page 110)
À ATTENTION ASSIST
(Y page 202)
¤ ECOs tart/stop function
(Y page 142)
Ä Speed Limit Assist
(Ypage 203)
à Lane Keeping Assist
(Y page 210) or Active Lane
Keeping Assist (Y page 215)
HOLD HOLD function (Y
page 187)
Ä PRE-SAFE®
Brake (Y page 66)
120km/h! Maximum permissible speed
exceeded (only for certain coun-
tries) Displays and operation
237On-boardcomputerand disp lays Z

tio
nd isplay shows the Äsymbol when the
ignition is switched on.
Showing distance display This function is only available with DIS-
TRONI CPLUS.
X Press =or; on thesteerin gwheel
to selec tthe Assist. menu.
X Press the 9or: button to select
Distance display .
X Press a.
The DI STRONIC PLUS distance display
(Y page 177) appears in the multifunction
display.
Activating/deactivatin gthe PRE-SAFE ®
Brake PRE-SAFE
®
Brake is onl yavail able in vehicles
with DISTRONIC PLUS.
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select PRE-SAFE Brake .
X Press the abutton.
The current selection is displayed.
X To activate/deactivate: pressa
again.
When PRE-SAFE ®
Brake (Y page 66) is acti-
vated, the multifunction displa yshows the
Ä symbol as long as the HOL Dfunction is
not activated (Y page 187).
Vehicles with Active Parking Assist: if
PARKTRONIC is activated and you are driving
at as peed under 35 km/h, the jActive
Parking Assist symbol is shown instead of the
Ä symbol. Activating/deactivating ATTENTION
ASSIST X
Press =or; on the steerin gwheel
to selec tthe Assist. menu.
X Press the 9or: button to select
Attentio nAsst. .
X Press a.
Th ec urrent selection is displayed.
X To activate/deactivate: pressa
again.
When ATTENTION ASSIST (Y page 202)is
activated, the Àsymbol appears in the
multifunction displ aywhen the ignition is on.
Activating/deactivating Blind Spot
Assist You can use the
Blind Spot Asst. func
tion
to activate or deactivate Blin dSpot Assist
(Y page 208) or Active Blin dSpot Assist
(Y page 212).
X Press =or; on the steerin gwheel
to selec tthe Assist. menu.
X Press 9or: to select Blind Spot
Asst. .
X Press a.
The curren tselection is displayed.
X To activate/deactiva te:press a
again.
Activating/deactivating Lane Keeping
Assist You can use the
Lane Keep. Asst. function
to activate/deac tivate Lane Keeping Assist
(Y page 210) or Active Lane Keeping Assist
(Y page 215).
X Press =or; on the steering wheel
to select the Assist. menu.
X Press 9or: to select Lane Keep.
Asst. .
X Press a.
The current selection is displayed.
X Press the abutton to confirm. Menus and submenus
245On-boardcomputerand disp lays Z

X
Press :or9 to set Off ,
Standard or
Adaptive .
X Press the abutton to save the setting.
When Lane Keeping Assist or Active Lane
Keeping Assist is activa ted, the Ãsymbol
appear sint he multifunction displa ywhen the
ignition is on. Servic
emenu In the
Service menu you can:
R call up display messages (Y page 253)
R reset the tyre pressure loss warnin gsystem
(Y page 360) or check the tyre pressure
electronically (Y page 361)
R call up the service due date (Y page 322)Settings menu
Introduction The
Settings menu can be used for:
R changing the instrument cluster settings
R changing the ligh tsettings
R changin gthe vehicle settings
R changin gthe auxiliary heating settings
R changin gthe con venience set tings
R resto ring the factory settings Instrument cluster Selectin
gthe uni tofmeasurement for dis-
tance
The Displa yunit Speed-/odometer: function allows yo
utochoose whether cer-
tai nd isplays appear in kilometres or miles.
The selected unit of measurement for dis-
tanc eapplies to:
R the digital speedometer in the Trip menu
R the total distanc erecorder and the trip
meter
R the trip computer
R the curren tconsumption and the range
R the navigation instruction in the Navi menu
R cruise con trol
R SPEEDTRONIC
R DIST RONIC PLUS
R ASSYST PLUS service interval display
X Press the =or; button on the steer-
ing whee ltoselect the Settings menu.
X Press the :or9 button to select the
Inst .cluster submenu.
X Press the abuttontoc onfirm.
X Press the :or9 button to select the
Displa yunit Speed-/odometer func-
tion.
Yo uw ill see the selected setting: km or
miles .
X Press the abutton to save the setting.
Selecting the permanent display function
i Vehicles for the United Kingdom: this
func tion is not available.
The Permanen tdisplay: function allows
yo utoc hoose whether the multifunction dis-
play always shows the outside temperature
or the speed in mph.
X Press the =or; button on the steer-
ing wheel to selec tthe Settings menu.
X Press the :or9 button to selec tthe
Inst .cluster submenu.
X Press the abuttontoc onfirm. 246
Menu
sand submenusOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Vehicles wit
hBecker ®
MA PPILOT :ifthe Becker ®
MA PPILOT is
not connected, the radar sensor syste misdeactivated automati-
cally.
BAS PLUS, DI STRONIC PLUS, Blind Spot Assis torActive Blind
Spo tAssist and PRE-SAFE ®
Brake ar enot available.
X Connect the Bec ker®
MAP PILOT; see the separate operating
inst ructions. Rada
rsensor deactivated See
Owner's Manual Th
er adar senso rsystem is deactivated.
X Check whether or not the radar sensor syste mmay be activated
(Y page 380).
X Switch on the radar senso rsystem (Y page 249). Lan
eKeeping Assist currently
unavailable See
Owner's Man‐
ual or
Active Lane Keeping Assist cur‐
rently unavailable
See Owner's Manual Lan
eKeeping Assist or Active Lan eKeeping Assist is deactivated
and temporarily inoperative. Possible causes:
R the windscreen is dirt yinthe camera's field of vision.
R visibilit yisimpaire ddue to heavy rain, snow or fog.
R there are no lane markings for alonger period.
R the lane markings ar eworn ,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 Apply the electric parking brake.
X Clean the windscreen.
If the system detect sthat the camera is fully operational ,the dis-
play message disappears.
Lane Keeping Assist or Ac tive Lane Keeping Assist is operational
again. Lane Keeping
Assist inopera‐
tive orActive Lane
Keeping Assist
inoperative Lane Keeping Assist or Active Lane Keeping Assist is faulty.
X
Visit aqualified specialist workshop. Display messages
273On-boardcomputer anddispl ays Z