RIf narrowv ehicles ar ewithin them onitoring
ra nge, e.g .bicyc les.
Wa rnings ma ybeissued in er rorw hen driving
close tocrash barr iersors imilar solid lane bor‐
ders. Warnings ma ybeinterrupte dw hen driving
alongside long vehicles, fore xamp le, truc ks,for
ap rolonge dperiod.
Blind Spo tAssis tisn otoperational when reve rse
ge ar is engaged.
Brak eapplication of Activ eB lind Spo tAssis t
If Ac tiveB lind Spo tAssistdetects arisk of aside
impact in them onitoring range, acourse-cor‐
re cting brak eappli cation is car ried out. This is
designed tohelp youa void ac ollision.
The course-cor recting brak eappli cation is availa‐
ble in thes peed rang eb etwe en appr oximately
20 mph(30 km/h) and 125m ph (200 km/h).
&
WARNING Risk of accident despite
brak eapplication of ActiveB lind Spot
Assi st
Ac ourse-co rrecting brak eapplication cannot
alw aysp reve nt ac ollision.
#Alw ayss teer,b rake or accelera teyour‐
self,e speciall yifActiveBlind Spot
Assi stwa rnsy ou or makes acourse-
co rrecting brak eapplication.
#Alw aysm aintain asafed ista nce at the
sides.
& WARNING Risk of accident despite
Ac tiveB lind Spo tAssist
Blind Spo tAssist does no treact tothef ol‐
lowing:
ROver taking vehicles closel yonthe side,
placing them in theb lind spo tarea
RVe hicles approaching and overtakin gyou
at av eryd iffe re nt speed
As aresult, ActiveB lind Spo tAssistma ynei‐
th er giv ewarning snor inter vene in such sit‐
uations.
#Alw aysp aycareful attention tothet raf‐
fi cs ituation and maintai nasafed is‐
ta nce at thes ide of thev ehicle.
Ifac ourse-cor recting brak eappli cation occurs ,
th er ed warning lam pflashes in theo utside mir‐
ro ra nd warning tone sounds. In addition, adis‐
pl ay 1 indicatin gthe danger of aside collision
appear sinthe multifunction displa y.
In rare cases, thes ystemm aymak eani nappro‐
priat ebrake application. This brak eapplication
ma ybei nterrupte data nytime if yous teer
slightl yinthe opposit edirection or accelera te.
Driving and pa rking 18
9
System limitations
Either acourse-cor recting brak eappli cation
appropria teto thed riving situation ,ornonea t
all, ma yoccur in thef ollowing situations:
RTher earevehicles or obs tacles, e.g. crash
barr iers, on bo thsides of your vehicle.
RAv ehicle approaches tooc losel yont he side.
RYouh avea dop tedas porty driving stylew ith
high cornering speeds.
RYo uc lear ly brak eora ccelera te.
RAd riving safe ty system inter venes, such as
ESP®or ActiveB rake Assi st.
RESP®is deacti vated.
RTire pressur eloss or adefectiv etireh as
been de tected.
RWhe ndriving wi thatrailer ,the electrical con‐
nection tothet railer hitc hhas been cor rectly
es tablished. Ac
tivating/deactivatin gBlind Spo tAssis tor
Ac tiv eB lind Spo tAssis t
Multimedia sy stem:
,Vehicle.k Assistance.Blind
Spot Assist
#Ac tivate Oor deacti vate ª thef unction.
Ac tiv eL aneK eeping Assist
Function of Activ eL aneK eeping Assist
ActiveL aneK eeping Assis tmonitor sthe area in
front of your vehicle bymeans of multifunction
camera 1.Itserve stop rotect youa gains tunin‐
te ntional lyleavingy our lane. Youw ill be warned
by means of avibration in thes teering wheel
19 0
Driving and pa rking
andacourse-cor recting brak eappli cation guides
yo ub acki ntoy our lane.
Yo ua rewa rned byvibration pulses in thes teer‐
ing wheel in thef ollowing circums tances:
RAc tiveL aneK eeping Assis tdetects lane
markings.
RAf ront wheel passe soverthe lane markings.
Yo uw illalso beguided bac kintoy our lane by
means of acourse-cor recting brak eappli cation
if th ef ollowing condition sareme t:
RActiveL aneK eeping Assis tdetects lane
markings on bo thsides.
RAf ront wheel drives overas olidl ane mark‐
ing.
Whe ther aw arning is issued and when this
occur salso depends on thes elected sensitivity
setting (s tanda rdor adaptive).
If yo uf ail toadap tyour driving style, Ac tiveL ane
Ke eping Assis tcan neither reduce ther isk of an
accident nor override thel aw sofp hysics. It can‐
no ttak ei ntoa ccount road, weather or traf fic
conditions .Activ eLaneK eeping Assis tisonlya n
aid. Youa re re sponsible fort he dis tance tothe ve
hicle in front, forv ehicle speed, forb raking in
good time and fors taying in lane.
Ve hicles with Lane Tracking Package: Ifth e
lane markings ar esolid lines and youdon ot
re act tothew arning ,alane-cor recting brake
application can bring thev ehicle bac kintot he
original lane.
Ve hicles with Drivin gAssistanc ePacka ge or
Driving Assistance Plus Package: Ifyo udon ot
re ac
t tothew arning ,alane-cor recting brake
application can bring thev ehicle bac kintot he
original lane. In thec ase of abroke nl ane mark‐
ing being de tected, abrake application will only
be mad eifavehicle has been de tected in the
adjacent lane .Oncoming vehicles, overtaking
ve hicles and vehicles in adjacent lanes can be
de tected.
The brak eappli cation is available in thes peed
ra ng eb etwe en 40 mph(60 km/h )and 120m ph
(200 km/h).If al ane-cor recting brak eappli cation occurs ,dis‐
play 1appear sinthe multifunction displa y.
Sy stem borders
No lane-cor recting brak eappli cation occurs in
th ef ollowing situations:
RYouc lear lyand activel ysteer,b rake or accel‐
erate.
RYo uh ave switched on thet urns ignal indica‐
to r.
RAd riving safe ty system inter venes, such as
ESP®,A ctiv eBrake Assi stor ActiveB lind
Spo tAssist.
Driving and pa rking 19
1
RYouh avea dop tedas porty driving stylew ith
high cornering speeds or high ratesofa ccel‐
eration.
RESP®is deactivated.
RWhen driving wit hatrailer, thee lectrical con‐
nection tothet railer has been cor rectly
es tablished.
RIfal oss of tir epressur eorad efectivetire
has been de tected and displ ayed.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
RTher eisp oor visibility, e.g. duetoinsuf ficient
illumination of ther oad, highly variable shade
conditions, or due torain, sno w,fogorh eavy
spr ay.
RTher eisg lare, e.g. from thes un, reflections
or oncoming tra ffic.
RTher eisd irtont he windshield in thev icinity
of them ultifunction camer aorthe camer ais
fo gged up, damaged or obscured.
RNo or se veral, unclear lane markings are
presentf or one lane, e.g. in aconstruction
area.
RThe lane markings ar eworn, dar korcovered.
RThe dis tance tothev ehicle in front is too
small and thel ane markings thus canno tbe
de tected.
RThe lane markings chang equickl y,e.g. lanes
branc hoff,c ross one ano ther or mer ge.
RThe road is very nar rowa nd winding.
Ve hicles with Drivin gAssistanc ePacka ge or
Driving Assistance Plus Package: ActiveL ane
Ke eping Assis tuses radar sensor stomonitor
se verala reas around thev ehicle. If ther adar
senso rs
inther ear bumper ar edirt
y or covered
wit hs now, thes ystemm aybe impaired or may
no tfunction .Ifano bstacle in thel ane in which
yo ua redrivin ghas been de tected, no lane-cor‐
re cting brak eappli cation occurs .
Ac tivatin gActive Lan eKeeping Assist
&
WARNING Risk of accident despite
wa rning from ActiveL aneK eeping Assist
Al ane-cor recting brak eappli cation cannot
al wa ys bring thev ehicle bac kintot he origi‐
nal lane.
#Alw ayss teer,b rake or accelera teyour‐
self,e speciall yifActiveLaneK eeping
Assis twarns youorm akesalane-cor‐
re cting brak eappli cation.
&
WARNING Risk of accident despite inter‐
ve ntio nofA ctiveLaneK eeping Assist
Ac tiveL aneK eeping Assis tdoes no tdetect
traf ficc onditions or road users. In very rare
cases, thes ystem ma ymakeani nappropri‐
at eb rake application, e.g. af teri ntentional ly
driving overas olidl ane marking.
The brak eapplication can be inter rupte dat
an yt ime if yous teer slightl yinthe opposite
direction.
#Alw aysm akes uret hat ther eiss uffi‐
cient dist ancetot he side foro ther traf‐
fi coro bstacles.
&
WARNING Risk of accident despite Lane
Ke eping Assist
Lane Keeping Assis tcannot alwaysc learly
de tect lane markings.
19 2
Driving and pa rking
In suchcases, Lane Keeping Assis tcan:
Rgiv eanu nnecessar ywarning
Rnotg iveaw arning
#Alwaysp ayparticular attention tothe
traf fics ituation and keep within the
lane, especiall yifActiveLaneK eeping
Assis talerts you.
Prerequisi te
The driving speed is at leas t40m ph (60 km/h).
#Press button ;.
If indicator lamp :lights up, Lane Keeping
Assis tisactivated. When lane marking sare
de tected, thel ines in thea ssis tance graphic
ar es hown in white.
Sensitivity of Activ eL aneK eeping Assist
Wi th th estandar dora daptiv esetting ,you can
influence when thew arning vibration of Lane
Ke eping Assis ttakes place. In bo
th thestandar dand adaptiv esettings, no
wa rning vibration occur sinthefollowing situa‐
tions:
RYo uh ave switched on thet urns ignal indica‐
to r.
RAd riving safe ty system inter venes, such as
ABS, BASorE SP®.
In thea daptiv esetting, ther ew ill also be no
wa rning vibration in thef ollowing situations:
RThe vehicle is accelerated or braked consid‐
erably.
RYo us teer actively ,e.g. swer vetoavo id an
obs tacle or chang elane quickl y.
RYouc utthec orner on ashar pbend.
Setting thes ensitivityofA ctive Lan eKeep‐
ing Assist
Multimedia sy stem:
,Vehicle.k Assistance.Act.
Lane Keep. Assist
Selection options
#Select Adaptive orStandard.
Driving and parking 19
3
Menus and submenus
Functions in theS ervice menu of theo n-
boar dcompu ter
On-boar dcomputer:,Service
% The spelling ma ydiffe rint he main menu dis‐
pla yed. Therefore, obser vethem enu over‐
vie wf orthei nstrument displa yinthe wide‐
screen cockpit (
→pag e195).
#To select thef unction: swipe upwards or
down wardsont he left-hand side of Touch
Control.
#Press thel eft-hand side of Touc hC ontrol.
Fu nctions in theService menu:
RMessagememor y(→page352)
RTire Pressure :
-Checkingthet irep ressur ewitht he tire
pressur emonitoring sy stem (→pag e317)
-Re startin gthe tir epressur emonitoring
sy stem (→pag e318)
RASSYST PLUS :calling up thes ervice due
dat e(→pag e277)
Calling up theA ssistance graphic display
On-board computer:,Assistance
% The spelling ma ydiffe rint he main menu dis‐
pla yed. Therefore, obser vethem enu over‐
vie wf ortheI nstrument Displa yintheWide‐
screen Cockpit (
→pag e195). When you
ha ve setthe progressiv edispla ysetting, the
assis tance graphicc an be viewedint he
Disp. Content menu.
The following displa ysarea vailable from the
Assi stanc egraphic menu:
RAssis tance graphic
RAt tentio nleve l(→pag e184)
#To switc hbetwe en thed ispla ys:swipe
up wa rdsord ownw ards on thel eft-hand side
of Touc hC ontrol.Status displa ysintheA ssis tance graphic:
Ré:A TTENTION ASSIS Tdeactivated
Ræ:A ctiveBrake Assi stdeactivated
RLight lane markings: ActiveL aneK eeping
Assis tactivated
RGreen lane markings :Activ eLaneK eeping
Assis tactive
19 8
Instrument Displa yand on-boar dcomputer
Displaymessages
Possible causes/consequences and MSolutions
Active Lane Keeping Assist
Currently Unavailable See
Operator' sManual *A
ctiv eLane keeping Assis tistemporarily una vailable.
The ambientc onditionsareoutside thes ysteml imits (
→pag e190).
Ve hicles with Steering Pilo t:The camer aviewm aybe restricted bythew indshield.
#Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem limits, thes ystemw ill become available again.
If th ed ispla ymessag edoes no tdisappear on vehicles wit hSteering Pilo t:
#Pulloverand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
#Cleant he windshield.
Active Lane Keeping Assist
Inoperative *A
ctiveLane Keeping Assis tismalfunctioning.
#Visit aq ualified specialis tworks hop.
Displa ymessages and warning/indicator lamps 37
3
Displaymessages
Possible causes/consequences and MSolutions
Active Lane Keeping Assist
Camera View Restricted
See Operator' sManual *V
ehicles without Steering Pilo t:
The camer aviewisr educed. Possible causes are:
RDir tont he windshield in thec amera's field of vision
RHeavy rain, sno worfog
Driv ings ystems and driving saf etys ystems ma ybem alfunctioning or temp orarily una vailable.
When thec auses no longer apply ,driving sy stems and driving saf etys ystems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear:
#Pull overand stop thev ehicle safely ,paying attention toroad and traf ficc onditions.
#Cleant he windshield.
Blind Spot Assist Currently
UnavailableS ee Operator's
Manual *B
lind Spo tAssis tist emporaril yunavailable.
The sy stem limits ha vebeen reached (
→pag e188).
#Driv eon.
When thec auses no longer appl y,thes ystemw ill be available again.
or
#If th ed ispla ymessag edoes no tdisappear ,pull ove rand stop thev ehicle while paying attention toroad and
traf ficc onditions and restar tt he engine.
#If necessar y,clean thes ensor sintherear bumper.
37 4
Displ aymessage sand warning/indicator lamps