2019 MERCEDES-BENZ C-CLASS SEDAN Owner's Manual

R
Ifth emaneuv ering assis tance func tionis
acti vatedin themultimedia system.
Sy stem limita tions
Dr ive Aw ayAssi stisno tav ailable onincline s.
Fu nction ofCross Traf fic Aler t
0009 Alsore ad theins truction son Blind Spot
Assis t(0013 page21 9). Ve
hicl eswith Blind SpotAss ist: driver scan
also bewarned ofanycr ossing traf fic whe n
ba cking upout ofapar kingspace. Ifacr itic al
situat ionisde tected, symbo l1 appea rsinthe
multime diasystem displa y.Ifth edr iver does not
re spond tothewa rning, theve hicle's brak es can
be appli edaut omaticall y.To do this, thefunc tion
uses thera dar sensor sin thebum per.The area
adjacen tto theve hicle iscont inually monitored.
If th era dar sensor sar eobs truct edbyvehicles
or other object s,de tection isno tpos sible.
The Cross Traf fic Aler tfuncti onisacti veunde r
th efo llo wing condition s:
R IfBlin dSpo tAss istis act ivat ed.
R Ifth eve hicle isbac king upatwa lkin gpace.
R Ifth emaneuv ering assis tance func tionis
acti vatedin themultimedia system.
Sy stem limita tions
The Cross Traf fic Aler tfuncti onisno tav ailable
on incline s. Deact
ivat ing/a ctivating maneuv ering assis‐
tance
Mult imed iasystem:
0018 Vehicle 0019
k Assist ance
0019 Camera &Parkin g0019
Maneuverin gAssist . 0007
Activate0073 ordeacti vate 0053 thefunc tion.
0009 Maneuv ering assis tance mustbe activ efo r
th efunc tion ofDrive Aw ayAssi st
( 0013 page21 4) and Cross Traf fic Aler t
(0013 page 215). AT
TENTI ONASSIST Fu
nction ofATTENTI ONASSIST
AT TENTION ASSISTassis tsyouon long,mon oto‐
nous journeys,e.g. onhighw aysand trunk roads.
If AT TENTION ASSISTde tects indicatorsof fati‐
gu eor incr easing laps es inconce ntration onthe
par tof thedr iver ,it sugg ests taking abr ea k.
AT TENTION ASSISTis onl yan aid. Itcann ot
alw aysde tect fatig ue orlaps es inconce ntration
in tim e.The system isno ta subs titutefo ra we ll-
re sted and attent ive dr iver .On long journeys, Dr
iving and parking 21
5

ta
ke regular break sin good timethat allo wfor
adeq uatere cup erati on.
Yo ucan choose between twose ttings.
R Standar d:nor mal system sensit ivity.
R Sensitiv e:higher system sensit ivity.The
dr iver iswa rned ear lier and theatt ent ion
le ve lde tected byATTENTION ASSISTis adap‐
te daccor dingly.
If dr ow siness orincr easing lapsesinconcen tra‐
tion arede tected, theATTE NTION ASSIS T:Take
a Break !wa rning appear sin theins trument dis‐
pla y.Yo ucan ackn ow ledg eth emessag eand
tak eabr eak wher eneces sary.Ifyo udo notta ke
a br eak and ATTENTION ASSISTcont inues to
de tect incr easing lapse sin concentr ation, you
will bewarned again afte ra minimu mof
15 minut es. Yo
ucan have thefo llo wing status informat ionfor
AT TENTION ASSISTdispla yedin theassis tance
menu oftheon- boar dcom puter:
R The lengt hof thejour neysince thelas t
br eak .
R The attent ion leve lde term ined byATTENTION
ASS IST.
If AT TENTION ASSISTis unable tocal cul ateth e
att ent ion leve land cannotissue awa rning, the
Sys tem Suspend edmes sage appear s.
If awa rning isgiv en intheins trument display,
th emultimedia system offers to sear chfora re st
ar ea. Youcan selectare st area and star tna vig a‐ tio
nto this rest area. This function can beact iva‐
te dand deactiv ated inthemultimedia system.
If AT TENTION ASSISTis deactiv ated, the00D7
symbol appearsin theassis tance grap hicin the
ins trumen tdispla ywhen theengine isrunning .
AT TENTION ASSISTis activ ated aut omaticall y
when theengine isre-sta rted. The lastselect ed
sensit ivityleve lre mains stor ed.
Sy stem limita tions
AT TENTION ASSISTis activ ein the37 mph
(60 km/ h)to 124mp h(200 km/h) speedrang e.
The func tional ity ofATTENTION ASSISTis
re strict ed, and warnings maybe dela yedor not
occ uratall inthefo llo wing situat ions:
R Ifyo uha ve been driving forless than appr ox‐
imat ely30 min utes.
R Ifth ero ad con dition ispoor (unevenro ad
sur face orpotholes).
R Ifth er eis ast ro ng side wind.
R Ifyo uadop ta spor tydrivin gst yle (high cor‐
ner ing speeds orhigh ratesof acceler ation).
R Ifth eSt eer ing Assis tfunc tion ofActiveDis ‐
ta nce AssistDIS TRONI Cis acti ve. 21
6
Driving and parking

R
Ifth etime hasbeen setincor rectly .
R Inacti vedriving situation s,ifyo uch ang e
lane sand vary your spee dfreq uen tly.
The ATTENTION ASSISTtir edness oraler tness
assessment isdele tedand restar tedwhen con‐
tin uing thejour neyin thefo llo wing situat ions:
R Ifyo uswit choffth eengine.
R Ifyo uunf astenyo ur seat beltandopen the
dr iver's door (e.g.chang ingdriver sor taking
a br ea k).
Se ttin gAT TENTI ONASSIST
Multimedia system:
0018 Vehicle 0019
k Assist ance
0019 ATTE NTION ASSIS T
Se tting options 0007
Select Standard, SensitiveorOff.
Sugg esting are st area 0007
Select SuggestRes tArea. 0007
Activate0073 ordeacti vate thefunc tion 0053.
If AT TENTION ASSISTde tects fatig ue or
incr easing lack ofatt ention ,it sugg ests a
re st area inthevicinit y. 0007
Selec ta sugg estedre st area: youar egui‐
ded totheselect edrest area. Tr
af fic Sign Assis t Fu
nction ofTraf fic Sign Assis t Tr
af fic Sign Assistdetects traf fic sig ns with mul‐
tifunction camera1. Itassi stsyo uby displa y‐
ing detected spe edlimits andovertakin gre stric‐ tions
intheins trument clusterand optionally in
th eHead-up Display.
Since Traf fic Sign Assistalso uses thedat a
st or ed inthena vig ation system, itcan updat e
th edispla yin thefo llo wing situat ionswithout
de tecting traf fic sig ns:
R Whe nth eve hicle chang esroads, e.g.a free‐
wa yen try or exitro ad.
R When avillag eor cityboun darywhic his
st or ed inthedigit almap ispassed.
The camer aalso detects traf fic sig ns with a
re striction indicatedbyan addit ionalsign (e.g.in
we tcond itions ).
Tr af fic Sign Assistisonl yan aid. Thedriver is
re sponsible forke eping asaf edis tance tothe
ve hicle infront, forve hicle speed andforbr aking
in good time. Themaximu mper missi blespee d
als odepe ndsonfact or ssu ch asthero ad sur‐
fa ce and traf fic condi tions.
Wa rning when thema xim um permis sible
speed isexc eeded
The system can warnyouif yo uunin tentio nally
exc eed themaximum permissible speed.Todo Dr
iving andparking 217

th
is, youcan spec ifyinthemultimedia system
by howmuc hth emaximum permissible speed
can beexc eeded beforeawa rning isissued. You
can specify whether thewa rning isto be justa
visual warning oran acous ticone aswell.
Displa yin theIns trum ent Displa y In
stru ment Displa yin theWi descr eenCockpit
1 Perm issible speed
2 Perm issible speedwhenther eis are striction
3 Addition alsign withre striction Tr
af fic Sign Assistisno tav ailable inall coun ‐
tr ies. Ifit is una vailable, display1 issho wnin
th espeedome ter.
Sy stem limita tions
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions. R
Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth etra ffic sign sar ehar dto detect, e.g. due
to dir tor sno w,orbecause they areco vered
or due toinsuf ficie ntlighti ng.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out-of-da te.
R Ifth esigns areambiguous, e.g.traf fic sig ns
on cons tructi onsites orinad jacent lanes.
R Ifyo utur nshar plywhen traffic sig ns areou t‐
sid eth ecamer a'sfield ofvision.
Se tting Traf fic Sign Assis t
Mult imed iasystem:
0018 Vehicle 0019
k Assist ance
0019 Traffic SignAssist
Ac tiv atin g/deac tivatin gaut omati cadop tion
of spe edlimits
Re quiremen ts:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d. 21
8
Driving and parking

0007
Select LimitAdop tion. 0007
Activate0073 ordeacti vate 0053 thefunc tion.
The speed limitsdetected byTraf fic Sign
Assi stareaut omat icallyadop tedby Active
Dis tance AssistDIS TRONI C.
Di spl aying detected traf fic signs inthe
med iadis pla y 0007
Select Display inCOMA ND. 0007
Activate0073 ordeacti vate 0053 thefunc tion.
0009 When DISTRONIC orcruise control areacti‐
va ted, thespeed detected can bemanu ally
ad op tedas thespeed limit
(0013 page18 5).
Ad jus tingthe type ofwa rning 0007
Selec tVisual &Audible ,Visual orNon e.
Ad jus tingthe warning threshold
This value determ ines thespeed atwhic ha
wa rning isissued whenexceeded. 0007
Select Warning Threshold. 0007
Setth edesir edspeed. Blind
SpotAssis tand Activ eBli nd Spo t
As sist wit hex itwa rning Fu
nction ofBlind SpotAssis tand Activ e
Bli nd Spo tAs sist wit hex itwa rning
Blin dSpo tAss istand ActiveBli nd Spo tAssi st
use twolat eral, rear-facin gra dar sensor sto
monit orthear ea up to130ft (40 m)behind your
ve hicle and10ft(3 m) direct lyne xt to your vehi‐
cle.
If ave hicle isde tected atspe eds aboveappr ox‐
imat ely8 mp h(12 km/h) andthis vehicle subse‐
qu ent lyent ersth emonit oring rang edire ctly next
to your vehicle, thewa rning lam pin theoutside
mir rorlig hts upred.
If ave hicle isde tected clos eto theside ofyour
ve hicle, there dwa rning lam pin theoutside mir‐
ro rflashes .If yo uswit chon thetur nsignal indi‐
cat orinthecor responding direction, awa rning
to ne sou nds once .If th etur nsignal indicat or
re mains switchedon,allother detected vehicles
ar eindicat edonlyby theflashin gof there d
wa rning lam p.
If yo uove rtak eave hicle quickl y, no warning is
giv en. 000A
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.
As are sult, Blind SpotAssis tcanno twa rn
dr iver sin this situat ion. 0007
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Blind
SpotAssis tand ActiveBli nd Spo tAssi st
ar eon lyaids. Theyma yfa ilto detect some vehi‐
cles andareno subs titutefo ratt entiv edr iving.
Alw aysensur eth at ther eis suf ficie ntdist anc eto
th eside forot her road user sand obstacle s.
Exi twa 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. Dr
iving and parking 21
9

000A
WARNIN GRisk ofacci dent despite exit
wa rning
The exitwa rning react snei ther tostatio nary
obj ect sno rto vehicles approaching youat a
gr eat lydif fere nt spe ed.
As are sult, theex itwa rning cannotwa rn
dr iver sin these situation s. 0007
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 ivat ed and uptoamax i‐
mum ofthre eminut esafte rth eignition has
been switchedoff.The exitwa rning isno long er
av ailable once thewa rning lam pin theoutside
mir rorflashes 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 limita tions
Blin dSpo tAs sis tand ActiveBli nd Spo tAssi st
ma ybe limi tedin thefo llo wing situat ions:
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 solidlanebor‐
der s.Alw aysmak esur eth at ther eis suf ficie nt
di st anc eto theside forot her traf fic or obs ta‐
cle s. Wa
rnings maybe interru pte dwhen driving along‐
side long vehicles, forex am ple truc ks,fo ra pr o‐
long edtime.
Blind SpotAssis tis no toper ationa lwhen reve rse
ge ar iseng aged.
The exitwa rning maybe limit edinthefo llo wing
situat ions:
R When thesensor sar eco veredby adjac ent
ve hicles innar row par kingspac es.
R When people approachth eve hicle.
R Intheeve ntofstatio naryor slo wlymo ving
obj ect s.
Fu nction ofbrak eapp lication (Activ eBlind
Spo tAssis t)
The brak eapplication functionisonl yav ailable
fo rve hicles withaDr iving Assistance Packag e.
If Ac tiveBli nd Spo tAssi stdetects arisk ofaside
im pact inthemonit oring rang e, acou rse-co r‐
re cting brak eap plica tion iscar ried out. This is
designed tohelp youavo idacollis ion.
The cour se-cor recting brak eap plica tion isavaila‐
ble inthespeed rang ebe twee nap prox imat ely
20 mph(30 km/h) and125mp h(200 km/h). 220
Driving andparking

000A
WARNIN GRisk ofacci dent despite
br ak eapplication ofActiveBli nd Spo t
Assi st
A cou rse-co rrect ing brak eapplication cannot
alw ayspr eve ntacol lisi on. 0007
Alw aysst eer ,br ak eor accelera teyour‐
self ,espe ciallyif Ac tiveBli nd Spo t
Assi stwa rnsyo uor mak esaco urse-
co rrect ing brak eapplication. 0007
Alw aysmaint ainasaf edis tance atthe
sides. 000A
WARNIN GRisk ofacci dent despite
Ac tiveBli nd Spo tAssi st
Ac tiveBli nd Spo tAssi stdoes notre act tothe
fo llo wing:
R Ifve hicles overtak eto oclosel yon the
side, placing them intheblind spotar ea
R Vehicles approaching andovertakin gyo u
at agr ea tly differ ent speed As
are sult, ActiveBli nd Spo tAssi stma ynei‐
th er giv ewa rnings norinterve ne insuch sit‐
uations. 0007
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. If
acour se-cor recting brak eap plica tion occu rs,
th ere dwa rning lam pflashes intheoutside mir‐
ro rand awa rning tone sou nds. Inadditio n,dis‐
pl ay 1 indic atingth edang erofaside collision
appear sin themultifunc tiondispla y.
In rare case s,thesy stem maymak ean inappr o‐
pr iat ebr ak eapplication. Thisbrak eapplication ma
ybe interru pte dat anytime ifyo usteer
slightl yin theopposit edir ect ion oraccelera te.
Sy stem limita tions
Eit her acour se-cor recting brak eap plica tion
ap propr iate to thedr iving situation ,or non eat
all, mayoccur inthefo llo wing situat ions:
R Vehicles orobs tacle s,e.g. crash barrier s,are
locat edon both sides ofyour vehicle.
R Ave hicle approaches tooclosely ontheside.
R Youha ve adop tedaspor tydriving style wit h
high corner ing speeds.
R Youbr ak eor acc elerat esign ifican tly.
R Adr ivi ng safety system interve nes, e.g.ESP ®
or ActiveBr ak eAssi st.
R ESP ®
is de acti vated.
R Aloss oftirepr essur eor adef ect ive tir eis
de tected. Dr
iving and parking 22
1

Ac
tiv atin g/deac tivatin gBli nd Spo tAs sist or
Ac tiv eBli nd Spo tAs sist
Multimedia system:
0018 Vehicle 0019
k Assist ance
0019 Blind SpotAssist 0007
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv eLan eKe eping Assist Fu
nction ofActiv eLan eKe eping Assist Ac
tiveLa ne Keeping Assistmonit orsth ear ea in
fr ont ofyour vehicle bymeans ofmultifu nction
camer a1. Itser vesto protect youag ains tunin ‐
te ntio nallylea vingyo ur lane .Yo uwill bewarned by
vibr ation pulses inthesteer ing wheel andgui‐
ded byacour se-cor recting brak eap plica tion
ba ck intoyo ur lane .
Yo uar ewa rned byvibr ation pulses inthesteer‐
ing wheel inthefo llo wing circums tances:
R ActiveLa ne Keeping Assistde tects alane
mar king.
R Afront whe eldrives ove rth is lane marking.
Yo uwill also beguided backint oyo ur lane by
means ofacour se-cor recting brak eap plica tion
if th efo llo wing condition sar eme t:
R ActiveLa ne Keeping Assistde tects lane
mar kings onboth edg esofthelane.
R Afront wheel drives over asolid lanemark‐
ing.
Yo ucan activat eor deac tivateth eAc tiveLa ne
Ke eping Assistwa rning.
Ac tiveLa ne Keeping Assistcan neither reduce
th erisk ofan accident ifyo ufa ilto adap tyo ur
dr ivin gst yle nor override thelaws ofphysics. It
can notta ke intoacc ount road, weather ortraf fic
condi tions.Ac tiveLa ne Keeping Assistis onl yan
aid. Youar ere sponsible forth edis tance tothe ve
hicle infront, forve hicle speed, forbr aking in
good timeandforst ay ing inyour lane .
Ac tiveLa ne Keeping Assistcan bring theve hicle
bac kint oth elane withalane-c orrecting brak e
ap plica tion. Inthecase ofabr ok en lane marking
being detected, abr ak eap plica tion willonly be
mad eif ave hicle hasbeen detected intheadja‐
cent lane. Oncoming traffic can bedetected.
Ve hicl eswith Drivin gAss istanc epac kage or
Dr iving Assistance Pluspackag e:ove rtakin g
ve hicles andvehicles inadjacent lanescanalso
be detected.
Ac tiveLa ne Keeping Assistis available inthe
speed rang ebe twee n37 mph(60 km/h) and
12 4mp h(200 km/h). 222
Driving andparking