Micr
osleep detection also doe sno tfuncti on
whe nth edr iver camer acann otdetect thedr iv‐
er's eyes, forex am ple asare sult ofthefo llo wing
fa ct or s:
R The driver's eyes areco vereddue tothe
st eer ing column position ,fo rex am ple.
R Poor ambient light.
R Some typesofeyeg lasses orsung lasses.
R The driver's lineofvision isoutside thedr iver
camer a'sfield ofvision.
Also obser veanyinf ormat ionrega rding displa y
mess ages that can bedispla yedon thedr iver
displa y.
The tiredness andalertness assessment of
AT TENTION ASSISTwit hmicr osleep detection is
re se tand restar tedwhen continuing thejour ney
in thefo llo wing situat ions:
R Ifyo uswit choffth eengine.
R Ifyo uunf astenyo ur seat beltandopen the
dr iver's door (e.g.tochang edr iver sor take a
br eak). Ac
tiv eDi stance AssistDI ST RO NIC Fu
nction ofActiv eDi stance Assist
DI ST RO NIC
Ac tiveDis tance AssistDIS TRONI Cma intains the
se tspeed onfree-f lowing roads. Ifve hicles in
fr ont arede tected, these tdis tance isma in‐
ta ined, ifnec essar y,unt ilth eve hicle comes toa
halt. Thevehicle acceler ates orbrak es depend‐
ing onthedis tance totheve hicle infront and
th ese tspeed. Thespeed anddistance tothe
ve hicle infront arese tand save dusing the
st eer ing wheel.
Ac tiveDis tance AssistDIS TRONI Cis available in
th e15 mp h(20 km/h) to130mp h(210 km/h)
spe edrang e.
Ot her featur esofActiveDis tance Assist
DIS TRONI C:
R Adjus tsthedr iving style depending onthe
select eddrive pr ogr am (fuel-sa ving,comfort‐
able ordynamic) (/page19 3)
R Initia tesacceler ationtothestor ed speed if
th etur nsignal indicat orisswitc hedonto
ch ang eto theov ertaking lane R
React sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les)
R Take sone-sided overtak ing restrictions into
acco untonhighwaysor on multi-lane roads
wit hseparat ero adw ays(countr y-dependen t)
Ad diti onalfunc tionav ailab lein certain coun‐
tr ies :if Ac tiveDis tance AssistDIS TRONI Cha s
br ak ed theve hicle toast ands till,it can automat ‐
icall yfo llo wtheve hicle infront when driving off
ag ain within 30seconds. Ifacr itical situation is
de tected inthesur round ingarea when drivin g
of f,suc has aper son intheve hicle path,avisual
and acous ticwarning isgiv en indic atingth at the
dr iver mus tno wtake contr olof theve hicle. The
ve hicle isno tacceler ated anyfur ther.
Ac tiveDis tance AssistDIS TRONI Cis ready to
pull away when thegr een ç vehicle symbol
fl ashes cyclic ally.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 210). 21
8
Driving and parking
Dr
iver dis pla yin theAssist ancemenu 1
Vehicle infront
2 Distance indicator
3 Setspe cified dist anc e
Ve hicle detected infront 1ishig hlight edin
gr een. Itma yal so be inthelane tothelef tof
yo ur vehicle insituations whereit is no tper mit‐
te dto overtake on theright, forex am ple onhigh ‐
wa ys.
Pe rm anen tst atus displa y
R ç (white): ActiveDis tance Assist
DIS TRONI Csel ect ed,sp eci fied distance set R
ç (gre en): ActiveDis tance Assist
DIS TRONI Cacti ve,specif ieddistance setand
ve hicle detected
The stor ed speed issho wnunder theper manen t
st atus displa yand highlight edon thespeedome‐
te r.When ActiveDis tance AssistDIS TRONI Cis
pa ssi ve,th est atus displa yis gray ed out.
If th espeed oftheve hicle infront orthespeed
adjus tmentis less than thestor ed speed dueto
th ero uteeve ntahead, thesegment sin the
speedome terlig ht up.
When these tspecif ieddistance isincr eased or
de crea sed ,th eÒ displa ybr ief lyappear s
unde rth eve hicle intheper manen tst atus dis‐
pla y.
% Onhighw aysor high-speed major roads, the
gr een ç vehicle symbol isdispla yedcy cli‐
cally when theve hicle isready topull away.
% Ifyo udepr esstheacceler ator pedal beyond
th ese tting oftheAc tiveDis tance Assist
DIS TRONI C,thesy stem isswitc hedtopas‐
siv emode. Theç Suspen dedmessag e
appear son thedr iver displa y. Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions,fo rex am ple:
R Insnow ,ra in, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight .
R The windsh ieldinthear ea ofthecamer ais
dir ty,fo gg ed up, damag edorcovered.
R Ifth era dar sensor sar edir tyor covered.
R Inpar kingga rage sor on roads withsteep
uphill ordownhill gradients.
R Ifth er ear enar row vehicles infront, suchas
bicy cles ormo torcyc les.
In addition ,on slipper yro ads, brakin gor acc el‐
er atin gcan caus eon eor severalwheels tolose
tr act ion and theve hicle could then skid.
Do notuse ActiveDis tance AssistDIS TRONI Cin
th ese situation s. Dr
iving andparking 21
9
R
Variable limiter
Fu rther information aboutActiveDis tance
Assi stDIS TRONI C(/ page 220).
% Further information onspeed adaptatio n
(/ page 223) .
Fu nction ofActiv eSt op- and -Go Assis t
Ac tiveSt op-and-Go Assisthelps youwhen in
traf fic jams onmul ti-la neroads withseparat e
ro adw aysby aut omat icallypullin gaw ay wit hin up
to 60 seconds andwithmode rate steer ing
maneuv ers. Itor ients itself using theve hicle in
fr ont and lane markings. ActiveSt op-and-Go
Assis taut omaticall ymaint ainsasaf edis tance
fr om theve hicle infront and vehicles cuttingin.
Ac tiveSt op-and-Go Assistre qu ires you, as the
dr iver ,to keep your han dson thesteer ing wheel
at all times sothat youar eable tointerve ne at
an ytime tocor rect thecour seoftheve hicle and
ke ep itin lane.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 210). Ac
tiveSt op-and-Go Assistactiv ates aut omati‐
call ywhen allofthefo llo wing condition sar e
me t:
R Youar ein atraf fic jam onafree wa yor high -
spe edmajorro ad.
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te dand activ e(/ page220 ).
R ActiveSt eer ing Assis tis activ ated and activ e
(/ page22 7).
R Youar etrave ling nofaster than 35 mph
(60 km/ h).
When ActiveSt op-and-Go Assistis activ eth e
¬ status displa yappear sin thedr iver displa y.
Sy stem limit s
The system limit ations ofActiveDis tance Assist
DIS TRONI Cand ActiveSt eer ing Assis tapply to
Ac tiveSt op-and-Go Assist(/ page225). Ac
tiv eSte ering Assis t Fu
nction ofActiv eSte ering Assis t
Ac tiveSt eer ing Assis tis onl yav ailable uptoa
speed of130mp h(210 km/h) .The system helps yo
uto stay inthecent erofthelane bymeans of
moder atesteer ing interve ntio ns.Dep endingon
th espeed driven, ActiveSt eer ing Assis tuses the
ve hicles ahead andlane markings asare fer‐
ence.
% Dependi ngon thecount ry,in thelowe r
speed rang eAc tiveSt eer ing Assis tcan use
th esur round ingtraf fic as are fere nce. Ifnec‐
ess ary, Ac tiveSt eer ing Assis tcan then also
pr ov ide assis tance when drivi ng away from
th ecent erofthelane.
If th ede tection oflane mar kings andvehicles
ahead isim pair ed,ActiveSt eer ing Assis t
switc hestopassiv emode. Thesystem prov ides
no suppor tin this case.
Pe rm anen tst atus displa yon thedr iver dis‐
pla y
Ø Gray:acti vatedand passiv e
Ø Green: activated and activ e
Ø Red,fla shing: prom pttothedr iver to
act ivel ycon firm ortransition from activ e
to passiv est atus ,sy stem limit detected Dr
iving and parking 225
%
During thetransition from activ eto passiv e
st atus ,th eØ symbol issho wnas
enlar gedand flashin g.On ce thesy stem is
passiv e,theØ symbol issho wnasgray
on thedr iver displa y.
Contact detection
The driver isrequ ired tokeep their hands onthe
st eer ing wheel atall times andbeable tointer‐
ve ne atanytime tocor rect thecour seofthe
ve hicle andkeep itin lane. Thedriver mus t
ex pect ach ang efrom active to passiv emode or
vice versaat anytim e. If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableper iod of time
orhas remo vedth eir hands from thesteer‐
ing wheel, anoptical warning isgiv en firs t. Dis ‐
pl ay messa ge1 appear son thedr iver displa y.
If th edr iver still does notst eer theve hicle, or
giv es no conf irmation tothesy stem, awa rning
to ne sou nds inad ditio nto thevisual warning
mess age.
If th edr iver does notre act tothis wa rning fora
consider ableper iod, anemerg encystop isiniti‐
at ed (/ page22 7).
The warning isno tissued orisstopped assoon
as thesy stem detects that thedr iver has
to uc hed thesteer ing wheel.
To uc hde tection maybe limit edorinop erati ve in
th efo llo wing situat ions:
R The driver iswe aring glov es.
R Ther eis ast eer ing wheel coveron thesteer‐
ing wheel.
If Ac tiveSt eer ing Assis tde tects that asy stem
limit hasbeen reac hed, avisual warning is
issued andawa rning tone sou nds. Obs
erve theno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 210).
Sy stem limit s
Ac tiveSt eer ing Assis thas alimit edsteer ing tor‐
qu efo rlat eral gui dance. Insome cases, the
st eer ing interve ntio nis no tsu fficien tto keep the
ve hicle inthelane.
The system maybe impair edorma yno tfunc tion
in thefo llo wing instances:
R The reispoor visibilit y,e.g. due tosno w,rain,
fo g, hea vyspr ay,gr ea tly varying ambien t
light orstro ng sha dows onthero ad.
R Ther eis glar e, e.g .fr om oncom ingtraffic,
di re ct sunli ght orreflect ions.
R Insuf ficie ntroad illumin ation.
R The wind shieldisdir ty,fo gg ed up, damag ed
or coveredin thevicin ityofthecamer a,e.g.
by ast icke r.
R No, orseveral,unc lear lane markingsare
pr esen tfo rone lane, orthemar king sch ang e
qu ickl y, forex am ple, inacon stru ction area
or atintersecti ons. 226
Driving and parking
R
The lane markings arewo rnaw ay,dar kor
co veredup, e.g. bydirtor sno w.
R Ifth edis tance totheve hicle infront istoo
shor tand thus thelane marking scann otbe
de tected.
R The road isnar row and windin g.
R Ther ear eobs tacle son thelane orprojec ting
out intoth elane, suchas objec tmar kers.
The system does notpr ov ide assis tance inthe
fo llo wing condition s:
R Onvery tight cur vesand when turning.
R When crossing intersections.
R Atround about sor tollplazas.
R When activel ych ang inglane without switch‐
ing onthetur nsignal indicat or.
R When thetir epr essur eis toolow. &
WARNIN GRisk ofacci dent ifAc tive
St eer ing Assis tune xpect edlystops func‐
tionin g
If th esy stem limits ofActiveSt eer ing Assis t
ar ere ac hed ther eis no guar anteethat the
sy stem will remain activeor wil lke ep the
ve hicle inlane. #
Alw ayske ep your han dson thesteer ing
wheel andobser vethetra ffic car efull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic condi tions. &
WARNIN GRisk ofacci dent ifAc tive
St eer ing Assis tune xpect edlyinterve nes
The detection oflane mar kings andobje cts
ma ymal functi onand causeune xpect ed
st eer ing interve ntio ns. #
Steer accor dingtotraf fic condi tions. Ac
tiv atin g/deac tivatin gAc tiv eSte ering
Assis t
Re quirement s:
R ESP®
is act ivat ed, but isno tint erve ning .
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
Multimedia system:
4 © 5
Set ting s5
Assist ance
5 Drivin g #
Select ØAct.St eering Asst.. Fu
nction ofActiv eEme rgency Stop Assis t Ac
tiveEmerg encyStop Assis tuses touc hsen ‐
sor sto monit orwhe ther thedr iver holds the
st eer ing wheel andinitiat esan emer gency stop if
necessar y.
If Ac tiveSt eer ing Assis tis deactiv ated, the
acc elerat orand brak epedal aremon itor ed as
we llas thesteer ing wheel. Awa rning isissued
when thesteer ing wheel isno tbeing heldor
when apedal isno tdepr essed, andtheve hicle
is in dang eroflea ving thelane. Dr
iving andparking 22
7
If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableper iod of
time orhas remo vedth eir hands from thesteer‐
ing wheel, visualwarning 1isissued. Ifth e
dr iver still does notst eer theve hicle, orgiv es no
conf irmation tothesy stem, awa rning tone
sou nds inad ditio nto thevisual warning mes‐
sag e.
Also obser vetheins truction son thecon tact
de tection ofActiveSt eer ing Assis t
(/ page225). Ac
tiveEmerg encyStop Assis tissues thefo llo w‐
ing warnings inorder :
R Disp lay mess age1 appear sin thedr iver's
displa y.
R Inaddi tion todispla y1 awa rning tone
sou nds.
R The BeginningEmerg encyStopmessage
appear son thedr iver displa y,acon tinuous
wa rning tone sou nds, theve hicle nolong er
acceler ates, and ther eis aslight, repeat ed
te nsi oni ng oftheseat belt.
R The vehicle speed isreduced inincr ement s
until itis at ast ands till.Sh arpbr ak eim pul‐
ses arealso produc ed.
De pen dingon thecount ry,a lane chang eto the
adjac entright-h andlane iscar ried out, ifpossi‐
ble.
% Itis onl ypossible tochang eacr oss onelane
and onlyinto theright-h andlane, andnot
ont oth ehar dshoulder .
When automatic braking isinitiat ed,ActiveDis ‐
ta nce AssistDIS TRONI Cis de acti vated. Depen d‐ing
onthecount ry,th ehazar dwa rning light sys‐
te m isswitc hedon.
When theve hicle isstatio nary,thefo llo wing
act ions arecar ried out :
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e.
R The vehicle isunloc ked.
R Ifpossible, anemer gency callis place dto
th eMer cedes- Benzemergency callcent er.
Bef oreau tomatic braking isinitia ted, youcan
can celActiveEmerg encyStop Assis tby steer‐
ing.
Yo ucan canceltheint erve ntio nby ActiveEmer ‐
ge ncy Stop Assis taf te rau tomatic braking isini‐
tiat edbyone ofthefo llo wing actions :
R Accel erati ng orbraki ng: theemer gency stop
is canceled, butthewa rning mess age, wa rn‐
ing tone and powe rst eer ing remain active
R Steer ing: powe r-assis tedsteer ing iscan‐
celed, thewa rning mess ageand warning
to ne remain activeand theve hicle continues
to be brak ed 228
Driving andparking
Dr
iver dis pla yin theAssist ancemenu 1
Green arrow :la ne chang einit iated
2 Redar row :la ne chang ecan celed
When ActiveLa ne Chang eAssi stisavailable, the
± displa yappear salong withgr een arrow sin
th edr iver displa y.Ifth esy stem has been activa‐
te dbut isno tcur rently available, the± dis‐ pla
yappear salong withgr ay arrow sin thedr iver
displa y.
If no vehicle orobs tacle isde tected intheadja‐
cent laneandalane chang eis per mitted, the
lane chang ebegin saf te rth edr iver has indicat ed
br ief ly.The lane chang eis sho wntothedr iver
wit haflashin ggr ee nar ro w ne xt to the±
st eer ing wheel symbol. Green arro w 1 isdis‐
pla yedin theappr opriateadjacen tlane inthe
Assi stance menu inthedr iver displa y.The Lane
Change tothe Left messag e,forex am ple, also
appear s.
Ac tiveLa ne Chang eAssi stcan becance led in
va rious situations, includingthefo llo wing:
R Chang ein thesur round ingcond ition s(e. g.
de tected obs tacle ).
R The driver remo vesth eir hands from the
st eer ing wheel.
R The driver steer swit hto omuc hfo rc eor in
th eopposit edir ect ion.
R The driver mo vesth etur nsignal indicat orin
th eopposit edir ect ion. R
ActiveDis tance AssistDIS TRONI Cor Active
St eer ing Assis tis deactiv ated.
R The vehicle canno tmak eth elane chang eas
plan ned.
Canc ellationofActiveLa ne Chang eAssi stisdis‐
pla yedas follo ws :
R The arro w in theselect eddirect ion oftrave l
tur ns red.
R Acor responding messageappea rson the
dr iver displa y.
R Incer tain cir cums tances awa rning tone
sou nds. &
WARNIN GRisk ofacci dent whench ang ‐
ing lane toan occ upied adjacentlane
Lan eChan geAssi stcanno tal wa ys cle arly
de tect ifth eadjacen tlane isfree.
The lane chang emigh tbe init iated although
th eadjacen tlane isno tfr ee. #
Beforech ang inglane s,mak esur eth at
th eneighbor inglane isfree and ther eis
no dang ertoother road user s. 230
Drivin gand parking
#
Monit orthelane chang e. &
WARNIN GRisk ofacci dent ifLane
Ch ang eAssi stune xpectedl yst ops func‐
tionin g
If th esy stem limit ations forLane Change
Assis tha ve been reac hed, ther eis no guar‐
ant eethat thesy stem will remain active.
Lane ChangeAssis tcanno tth en assis tyo u
by appl ying steer ing torq ue. #
Alw aysmonit orthelane chang eand
ke ep your han dson thesteer ing wheel.
Obser vethetra ffic con dition sand steer
and/or brak eif neces sary. Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing instances:
R The reispoor visibilit y,e.g. due tosno w,rain,
fo g, hea vyspr ay,gr eatl yva rying ambien t
light orstro ng sha dows onthero ad.
R Ther eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions. R
Due toinsuf ficie ntillu mina tionofthero ad,
or ifth eex terior lighting indicatesamalfunc‐
tion.
R The windshield isdir ty,fo gg ed up, damag ed
or coveredin thevicinit yof thecamer a,e.g.
by ast icke r.
R The sensor sar edamag ed,coveredor dir ty.
R No,or several,unc lear lane markingsare
pr esen tfo rone lane, orthemar king sch ang e
qu ickl y, forex am ple, inacon stru ction area
or intersecti ons.
R The system does notde tect asu itab leroad,
fo rex am ple, intig ht cur vesor shor tly af te r
an acc ess road.
R The lane markingsarewo rnaw ay,dar kor
co veredup, e.g. bydirtor sno w.
R Ifth edis tance totheve hicle infront istoo
shor tand thus thelane markings cannotbe
de tected.
R The reareobs tacle son thelane orprojec ting
out intoth elane, suchas objec tmar kers.
R When thetir epr essur eis toolow. Als
oob ser vethesy stem limits ofActiveSt eer ing
Assis tand theinf ormation onvehicle sensor s
and camer asintheve hicle Operator's Manual.
% The ActiveLa ne Chang eAssi stsensor s
adjus taut omaticall ywhile acer tain dis tance
is be ing driven afte rth eve hicle hasbeen
deliv ered. ActiveLa ne Chang eAssi stis
una vailable oronl ypar tiall yav ailable during
th is teac h-in proce ss,and noarro ws aredis‐
pla yedne xt to theØ ActiveSt eer ing
Assis tsymbol.
Selecting Activ eLan eCha ngeAs sist
Multimedia system:
4 © 5
Set ting s5
Assist ance
5 Drivin g #
Select thefunc tion. Ac
tiv eBr ak eAs sist Fu
nction ofActiv eBr ak eAs sist
Ac tiveBr ak eAssi stconsi stsof thefo llo wing
func tions:
R Distance warning func tion Dr
ivin gand parking 23
1