The
driver isresponsible forch oosing theright
speed andobser vingother road user s.This
applies inpar ticular tointersect ions,ro und ‐
about sand traffic lights, asroute-based speed
adap tatio ndo es notbr ak eth eve hicle toast and‐
st ill.
When routeguidan ceisact ive, thefirs tsp ee d
ad jus tment iscar ried out automaticall y.Ifth e
tur nsigna lind icatoris switc hedon,theselect ed
ro uteis co nfirmed andfurther speed adjustment
is activ ated.
Speed adaptatio nis canc eled inthefo llo wing
cases :
R Ifth etur nsignal indicat orisswitc hedoff
bef oreth ero uteev ent .
R Ifth edr iver depr esses theaccelera toror
br ak epeda ldur ing thepr ocess.
Sy stem limit s
Ro ute-based speedadap tatio ndo es nottak e
ri ght ofwa yre gulations intoaccount .The driver
is responsible forcom plying withro ad traf fic
re gulations anddriving atasuit able speed. The
speed adaptatio nma de bythesy stem may
no talw aysbe suit able, particular lyin thefo llo w‐
ing situat ions:
R The road's coursenotcle arly visi bl e
R Road nar row ing
R Varying maxim umpermissib lespeeds inindi‐
vidual lanes
R Wetro ad sur faces, snowor ice
In these situation sth edr iver mus tint erve ne
acco rding ly. &
WARNIN GRisk ofacci dent inspi teof
ro ute-based speedadap tatio n
Ro ute-based speedadap tatio ncan malfunc‐
tio nor be temp orarily una vailable inthefo l‐
lo wing situat ions:
R Ifth edr iver does notfo llo wthecalcula‐
te dro ute
R Ifmap datais no tup-t o-dat eor available
R Intheev ent ofroadw orks
R Inbad weather orroad con dition s R
Ifth eacceler ator pedal isdepr essed
R Intheeve ntofelectr onicallydispla yed
speed limitations #
Adaptth espeed tothetraf fic situ ation. Se
tting rout e-base dspee dadap tation
Re quirement s:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
R ECOAssis tis activ e.
Multimedia system:
4 © 5
Set ting s5
Assist ance
5 Route-based Speed #
Activateor deacti vate thefunc tion.
When thefunc tion isactiv e,theve hicle
speed isadjus teddependin gon thero ute
eve nts ahead.
% Further information onthero ute-based
spee dadap tatio n(/ page 179). 18
0
Driving and parking
Fu
nction ofActiv eSt op- and -Go Assis t
Ac tiveSt op-and-Go Assisthelps youwhen in
traf fic jams onmul ti-la neroads withsepar ate
ro adw aysby aut omat icallypullin gaw ay wit hin
60 sec ond sand withmode rate steer ing maneu‐
ve rs.It or ients itselfus ing theve hicle infront
and lane markings. ActiveSt op-and-Go Assist
aut omaticall ymaint ainsasaf edis tance from the
ve 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 sys‐
te ms and your responsibili ty;yo uma yot her wise
fa ilto recogni zedangers(/ page 164).
Ac tiveSt op-and-Go Assistactiv ates aut omati‐
call yas soon asall ofthere qu iremen tsareme t:
The ¬ status displa yappear sin theins tru‐
ment clusterwhen thefunc tion isactiv e.
Re quiremen ts:
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(/ page17 6).
R ActiveBr ak eAssi stisavailable
(/ page18 5).
R ActiveSt eer ing Assis tis activ ated and activ e
(/ page18 3).
R ActiveSt op-and-Go Assistis activ ated
(/ page18 1).
R Youar etra veling nofaster than 35 mph
(60 km/ h).
Sy stem limit s
The system limit ations ofActiveDis tance Assist
DIS TRONI Cand ActiveSt eer ing Assis tappl yto
Ac tiveSt op-and-Go Assist(/ page18 1).
Ac tiv atin g/deac tivatin gAc tiv eTr af fic Jam
Assis t
Mult imed iasystem:
4 © 5
Set ting s5
Quick Access #
Select ¬. 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, forex am ple, toform a
re scue lane.
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.
St atus displa yof Activ eSte ering Assis tin
th emu ltifunct iondisp lay
R Ø (gra y): act ivat ed and pass ive
R Ø (gre en): activ ated and activ e Dr
iving andparking 18
1
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 atintersecti ons.
R The lane mar kings 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 wind ing.
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 Ontigh tcur vesand when turning.
R When crossing intersections.
R Atround about sor tollplazas.
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
Quick Access #
Select 004FSteering Assist. Fu
nction ofActiv eEme rgency Stop Assis t Dr
ivin gand parking18
3
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, display1 appear sin themultifunc ‐
tion displa y.Ifth edr iver still does notst eer the
ve hicle, orgiv es no conf irmation tothesy stem,
a wa rning tone sou nds inad ditio nto thevisual
wa rning mess age.
If th edr iver still does notre spond tothewa rn‐
ing, theBeginn ingEmer gencySt op messag e
appear sin themultifunc tiondispla y.Ifth edr iver
st ill does notre spond, ActiveDis tance Assist
DIS TRONI Creduces thespeed. Thevehicle is
deceler ated instag es toast ands till.
De pen dingon thecount ry,at speeds below
40 mph(60 km/h) thehazar dwa rning light s
switc hon aut omat ically.
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 ActiveDis tance AssistDIS TRONI Cis end ed
R The vehicle isunloc ked. R
Ifpossible, anemer gency callis place dto
th eMer cedes- Benzemergency callcent er
The driver can cance lth edeceler ationatany
time byper form ing one ofthefo llo wing actions :
R Steer ing
R Braking oracceler ating
R Deact ivating ActiveDis tance Assist
DIS TRONI C Ac
tiv eLan eCha ngeAs sist Fu
nction ofActiv eLan eCha ngeAs sist
Ac tiveLa ne Chang eAssi stsuppor tsthedr iver
when chang inglane sby appl ying steer ing torq ue
if th edr iver oper ates atur nsignal indicat or.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 164).
Assis tancewhe nch ang inglane sis prov ided ifall
th efo llo wing condition sar eme t:
R Youar edr ivin gon afree wa yor road with
mult iplelanesin thedir ect ion oftra vel. R
The neigh boring lane issepar ated byabr o‐
ke nlane ma rking.
R Novehicle isde tected intheadjacen tlane.
R The vehicle speed isbe tween 50mph
(80 km/ h)and 110mp h(1 80 km/h).
R ActiveLa ne Chang eAssi stisswitc hedonin
th emultimedia system.
R ActiveSt eer ing Assis tis activ ated and activ e.
If no vehicle isde tected intheadjacen tlane and
a lane chang eis per mitted, thelane chang e
begin saf te rth edr iver has activ ated thetur nsig‐
nal indicat or.This issho wntothedr iver wit ha
gr een arro w ne xt to the± steer ing wheel
symbol. TheLane Change tothe Left messag e,
fo rex am ple, also appear s.IfAc tiveLa ne Chang e
Assi sthas been activated withth etur nsignal
indicat orbut alane chang eis no timm ediat ely
poss ible, agr ay arro w appear sne xt to the±
st eer ing wheel symbol, whichre mains green.
When thelane chang eassis tance star ts,th etur n
signal indicat orisaut omaticall yactiv ated along
wit hth edispla yin themultifunc tiondispla y. 18
4
Driving and parking
R
Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:Evasi ve Steer ing Assis tand corner ing
func tion
Ac tiveBr ak eAssi stcan helpyo uto minimize the
ri sk ofacollision withve hicles, cyclis tsor
pedes trians ortoreduce theef fects ofsuch a
coll ision.
If Ac tiveBr ak eAssi sthas detected arisk ofcolli‐
sion, awa rning tone sou nds and theL dis‐
ta nce warning lam plight sup intheins trument
clus ter.
If yo udo notre act tothewa rning, autono mous
br akin gcan beinit iated incritic alsituat ions.
In espec iallycritic alsituat ions,Ac tiveBr ak e
Assi stcan initia te aut onomo usbrakin gdir ect ly.
In this case, thewa rning lam pand warning tone
occu rsi mu ltane ously with thebr aking applica‐
tion .
If yo uappl yth ebr ak eyo urself inacr itical situa‐
tio nor appl yth ebr ak edur ing autonomous brak‐
ing, situation -dependen tbr aking assistance
occu rs.The brak epr ess ureincr eases uptomax‐
imum full-sto pbr aking ifnec essar y. Obser
vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 164). If
au tonomo usbraki ng orsitua tion-de pende nt
br aki ng assist anc ehas occurred, displa y1
appear sin themultifunc tiondispla yand then
aut omaticall ygoes outafte ra shor ttime. &
WARNIN GRisk ofan acci dent caused by
limit eddetection perform anc eof Active
Br ak eAssi st
Ac tiveBr ak eAssi stcanno tal wa ys cle arly
ident ifyobje ctsand complextraf fic situ a‐
tions . #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on ActiveBr ak e
Assi stalon e.Ac tiveBr ak eAssi stisonl y
an aid. Thedriver isresponsible for
maint ainingasuf ficie ntly safedist anc e
to theve hicle infront, vehicle speed
and forbr aking ingood time. #
Beprepa redto brak eor sw erve ifnec ‐
essar y. Als
oob ser vethesy stem limits ofActiveBr ak e
Assi st.
The indiv idua lsub func tions areav ailab lein
va rious speed rang es:
The distance warning func tion canissue awa rn‐
ing inthefo llo wing situat ions:
R From appr oximat ely4 mp h(7 km/h), ifyo ur
ve hicle iscritically closetoave hicle, cyclis t
or pedes trian, youwill hear anintermit tent
wa rning tone and theL distance warning
lam plight sup intheins trument cluster. 18
6
Driving and parking
R
Activati on byan abr uptst eer ing movement
dur ing asw erving maneu ver.
R Assi stanc edur ing swervin gand stra ight enin g
of theve hicle.
R React ion from aspee dof appr oximat ely
12 mp h(20 km/h) uptoaspee dof appr ox‐
imat ely43 mph(70 km/h).
Yo ucan preve nttheassis tance atanytime by
act ivel yst eer ing.
Cor nering function (onlyve hicl eswith Driv‐
ing Assistanc ePa ckag e)
If adang erofcoll ision from anoncoming vehicle
is de tected whe ntur ning across anoncomi ng
la ne, autonomo usbraki ng can beinitia tedat
speeds below9mp h(1 5 km/h) beforeyo uha ve
lef tth elane inwhic hyo uar edr ivin g. &
WARNIN GRisk ofacci dent despite Eva‐
si ve Steer ing Assis t
Ev asiv eSt eer ing Assis tcann otalw aysre cog‐
nize objectsorcom plex traf fic situ ations
cle arly. Mor
eover,th esteer ing suppor tpr ov ided by
Ev asive St eer ing Assis tis no tsuf ficie ntto
av oid acollision. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on Evasiv e
St eer ing Assis talone. #
Beprepar edtobrak eor sw erve ifnec ‐
essar y. #
End thesuppor tby act ivel yst eer ing in
non -critical situation s. #
Drive at an appr opriatespeed ifth er e
ar epedes trians close tothepat hof
yo ur vehicle. Sy
stem limit s
Fu llsy stem perform anc eis no tav ailable fora
fe w sec ond saf te rswitc hingontheignition or
af te rdr iving off.
If Ac tiveBr ak eAssi stisim pair edorinope rativ e
du eto amalf unction,the00C7 warning lam p
appear sin themultifunc tiondispla y. The
system maybe impair edorma yno tfunc ‐
tion ,par ticular lyin thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight .
R Ifth esensor sar edir ty,fo gg ed up, damag ed
or covered.
R Ifth esensor sar eim pair eddue tointerfer‐
ence from other radar sour ces, e.g.stro ng
ra dar reflect ions inpar king garage s.
R Ifaloss oftirepr essur eor afa ulty tirehas
been detected and displ ayed.
R Incom plextraf fic situ ations whereobject s
cann otalw aysbe clear lyidentif ied.
R Ifpedes trians orvehicles movequickl yint o
th esensor detection rang e.
R Ifpe destrians arehidde nby other object s.
R Ifth etypical outline ofapedes trian cann ot
be distinguished from thebac kground .
R Ifapedes trian isno tde tected assuch ,e.g.
due tospecial clothing orother object s.
R Ifth edr iver's seat beltisno tfa stened. Dr
iving andparking 18
9
Multimedia
system:
4 © 5
Set ting s5
Assist ance
5 Traffic SignAssist
Ac tiv atin gor deac tivatin gaut omati cadop ‐
tio nof spe edlimits (onlyve hicl eswith Driv‐
ing Assistanc ePa ckag e) #
Select LimitAdoptio n. #
Activateor deacti vate thefunc tion.
The speed limitsdetected byTraf fic Sign
Assi stareaut omat icallyadop tedby Active
Dis tance AssistDIS TRONI C.
% Ifone ofthefo llo wing systems isactiv ated,
th ede tected spe edcan bemanu ally ad op ted
as thespeed limit:
R ActiveDis tance AssistDIS TRONI C
R Cruise contr ol
R Variable limiter
Fu rther information (/page17 6).
Di spla ying detected traf fic signs inthe
me diadispla y #
Select DisplayinCentra lDispl ay. #
Activateor deacti vate thefunc tion.
Se tting thety pe ofwa rning #
Selec tVisual &Audible ,Visual orOff .
Se tting thewa rning threshold
This value determ ines thespeed atwhic ha
wa rning isissued whenexceeded. #
Select Warning Threshold. #
Setth edesir edspeed. Ov
ervie wof thetraf fic ligh tda ta ser vice &
WARNIN GRisk ofan acci dent orinju ry
due todis traction, incor rect or mis sing
da ta
The traf fic light informati ondispl ayisan aid
and cannotre place theobser vatio nof the
act ual drivin gsit uatio n. #
Keep theactual traffic situat ioncon‐
st ant lyin view when approachingatraf‐
fi c light and whench ang inglane s. #
Avoid prolong edviewing oftheIns tru‐
ment Displa yand Head-up Display. The
Instrument Displayand Head-up Display(if
av ailable) showthetra ffic light andremaini ng
time 1until thene xt green phase asacount ‐
do wn. Ex
am ple repr esent ation intheIns trument Display
The displa yis hidden aboutfive seconds before
th etraf fic lights chang eto gree n. 19
2
Driving and parking
&
WARNIN GRisk ofacci dent despite Blind
Spo tAssi st
Bli nd Spo tAssi stdoes notre act tovehicles
appr oaching andovertakin gyo uat agr ea tly
di ffer ent speed.
Blind SpotAssis tcann otwa rndriver sin this
situat ion. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Obser
vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 164).
Ex itwa rning
The exitwa rning isan addition alfunc tion of
Blin dSpo tAss istand canwarnvehicle occu‐
pants about approaching vehicles whenleaving
th eve hicle when statio nary. &
WARNIN GRisk ofacci dent despite exit
wa rning
The exitwa rning neit her react sto statio nary
obj ect sno rto vehicles approaching youat a
gr eat lydif fering spe ed.
The exitwa rning cannotwa rndriver sin these
situation s. #
Alw ayspa ypar ticular attention tothe
tr af fic situ ation whe nope ning thedoor s
and makesur eth er eis suf ficie ntcle ar‐
ance . If
th er eis ave hicle inthemonit oring rang e, this
is indic ated intheoutside mirror.If ave hicle
occupant opensthedoor ontheside withth e
wa rning, awa rning tone sou nds and thewa rning
lam pin theoutside mirrorst ar ts to flash.
This addit ionalfun ction ison lyavailable when
Blin dSpo tAs sis tis act ive. When theex itwa rn‐
ing isact ivat ed, itcan warnvehicle occupants
fo rup tothre eminut esafte rswi tching theigni‐
tion off.The exitwa rning isno long eravailable
on ce thewa rning lam pin theoutside mirror
fl ashes thre etimes. The
exitwa rning isonl yan aid and nota subs ti‐
tut efo rth eatt ent ion ofvehicle occupants. The
re sponsibili tyforopening andclosi ngthedoor s
and forlea ving theve hicle remains withth eve hi‐
cle occupants.
Sy stem limit s
Blin dSpo tAs sis tand ActiveBli nd Spo tAssi st
ma ybe limi tedin thefo llo wing situat ions,in par‐
tic ular :
R Ifth er eis dir ton thesensor sor thesensor s
ar eobscur ed
R Inpoor visibility ,e.g. due tofog, hea vyrain or
sno w
R Ifth er ear enar row vehicles, e.g.bicycles or
mo torbik es
R Ifth ero ad has very wide ornar row lanes
R Ifve hicles areno tdr iving inthemiddle of
th eir lane
Wa rnings maybe issued inerro rwhen driving
close tocrash barrier sor similar continuous lane
bor ders.Alw aysmak esur eth at ther eis suf fi‐
cie ntdist anc eto theside forot her traf fic or
obs tacle s. Dr
iving and parking 19
5