2021 MERCEDES-BENZ C CLASS ignition

When
theignition isne xt star ted, the
mediu msetting issele cted automatical lyand
Ev asiv eSt eer ing Assis tis available.
% IfAc tiveBr ak eAssi stisdeact ivat ed, the
00D4 symbol appearsinthest atus barofthe
multifu nctiondisplay. Bli
nd Spo tAs sist and 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 and
10 ft(3 m) next to your vehicle.
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. Pe
rm anen tst atus displa yin theins trument clus‐
te r:
R ¸ (gra y): system isactiv ated but inoper a‐
tiv e
R ¸ (green): system isactiv ated and oper a‐
tion al
If ave hicle isde tected clos eto your vehicle and
yo uswit chon thetur nsignal indicat orinthecor‐
re sponding direction, adoubl ewa rning tone
sou nds and there dwa rning lam pin theoutside
mir rorflashes .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. &
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 158).
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. Dr
iving andparking 18
3

Ac
tiv atin g/deac tivatin gPI N protection Re
quirement s:
To unlo ckthePIN:
R Ther eis an Interne tcon nect ion.
R AMer cedes meaccount exists at htt ps:/ /
me. secur e.mercedes -benz.com.
R The Perso nalization service isact ive
(/ page228) .
Multim ediasystem:
4 System 5
PIN Protec tion
Se tting thePIN #
Sele ctSet PIN. #
Entera fo ur -di git PIN. #
Enterth efo ur -di git PIN again.
If bo th PINs match,PIN protect ion isactiv e.
Changing thePIN #
Sele ctChang eSet tings. #
Enterth ecur rent PIN . #
Select Chang ePIN . #
Seta ne wPIN . Ac
tiv atin gPI N protection fordat aex por t #
Select Change Setting s.
Co nfirm with thePIN. #
Select ProtectData Export .
Ac tivate0073 ordeacti vate 0053 thefunc tion.
Un bloc king thePIN
If th ePIN has been entered incor rectl yth re e
tim es,th ePIN willbebloc ked. Youcan have a
sing le-use passwordsent toyouvia the
Mer cedes meconn ectonline portalto rese tth e
PIN protect ion. #
Select Unbloc kPIN. #
Enterth esing le-use password.
PIN protect ion isrese t,and youcan seta
ne wPIN.
% The availabilit yof this func tion iscoun try
depen dentandmayno tbe available inyour
co unt ry.
Alt ernati vely,yo ucan have PIN protect ion
re se tat an aut hor ized Mercedes-Benz Cen‐
te r. User
profile Se
tting auser profile
Multimedia system:
4 System 5
g Person alization
Displa yingauser profile when star ting
If th is func tion isact ive, apr om ptappear swhen
st ar tin gth esy stem asking whichuser profile to
use. #
Select Display Profile Select ion afterStart . #
Activate0073 ordeacti vate 0053 thefunc tion.
Selecting auser profile #
Select GuestProfile orindividual profile 003B.
% Some settings from theuser profile areonl y
loaded whentheve hicle isstatio naryor
when theignition isswitc hedon.
Au tomatic synchronizat ion
Eac htime theignition isswitc hedoffor on, the
indiv idual userprofiles aresync hroniz edon the
multime diasystem and ontheser ver.This
ensur esthat thelat estuser profiles areav aila‐
ble. Mult
imed iasystem 22
7

The
mobile phonecontinues tobe supplied
wit helect ricity .
or #
Disco nnect thecon nect ingcable between
th emobile phoneandmultimedia system.
Mer cedes- Benzrecomme ndsdisconnecti ng
th econ nect ingcable onlywhen theve hicle is
st atio nary. Tr
ansf erre dve hicl edata withAndroidAuto
and Apple CarPla y® Ov
ervie wof transf erre dve hicl edata
When using Andr oidAutoor Apple CarPla y®
,cer‐
ta in vehicle datais transf erredto themobile
phone. Thisenables youto getth ebes tout of
select edmobile phoneservices. Vehicle datais
no tdir ectl yaccessible.
The follo wing system information istransmit ted:
R Softwarere lease ofthemultimedia system
R System ID(anon ymized) The
transf erofthis dat ais used tooptimize com‐
munication between theve hicle andthemobile
phone.
To do this, and toassig nse veralve hicles tothe
mobil ephone, ave hicle identif ierisrando mly
ge ner ated .
Thi sha sno conne ctionto theve hicle identif ica‐
tion number (VIN)andisdele tedwhen themulti‐
media system isrese t(/ page230).
The follo wing drivin gst atus datais trans mitted:
R Trans miss ionposit ionengaged
R Distinction between parked, stands till,ro lling
and drivin g
R Day/n ight mode oftheins trument cluster
The transf erofthis dat ais used toalter how
con tent isdispl ayed tocor respond tothedr iving
situation .
The follo wing positiondatais transmit ted:
R Coor dinat es
R Speed
R Com pass direct ion
R Accel erati on dire ction Thi
sda ta isonl ytransf erredwhile thena vig ation
sy stem isactiv ein order toimprove it(e.g. soit
can continue func tioningwhen inatun nel). Mer
cedes mecalls Mak
ingacall viatheov erhead controlpa nel
Re quirement s:
R Youha ve acc ess toaGSM network.
R The cont ract partner' sGSM networkco ver‐
ag eis available inthere spectiv ere gion.
R The ignition isswitc hedonsothat vehicle
dat acan betransf erredaut omatic ally. Multimedia
system 27
1

1
mebutt onforser vice orinformation calls
2 SOS buttoncover
3 SOS button
Maki ngaMer cedes mecall #
Press button 1. Maki
nganeme rgency call #
Toopen theco verof SOS button2, press it
br ief ly. #
Press and hold SOS button3 forat lea st
one second.
If aMer cedes mecall isactiv e,an emer gency
cal lcan still be trigg ered. This hasprior ity ove r
all other activ ecalls.
Inf ormat ionabout theMer cedes mecall
using theme button
A cal lto theMer cedes- BenzCustomer Cent er
has been initiatedvia theme butt onintheove r‐
head controlpanel orthemultimedia system.
Using thevo ice con trol system, youcan select
on eof thefo llo wing service s:
R Accid ent and brea kdo wnmana gement
(/ page27 5)
R Mercedes-B enzCustomer Cent erforge ner al
inf orma tionab ou tth eve hicle
Yo ucan find informa tionon thefo llo wing topics:
R Activati on ofMe rcedes meconnect
R Oper ating theve hicle R
Near estaut hor ized Mercedes-Ben zCent er
R Other products andservices from Mer cedes-
Benz
Dat ais transf erreddur ing thecon nect iontothe
Mer cedes-Ben zCus tomer Cent er(/ page27 4).
Call ingtheMer cedes- BenzCustomer Center
usi ng the multi mediasy stem
Re quirement s:
R Youha ve acc ess toaGSM network.
R The cont ract partner' sGSM networkco ver‐
ag eis available inthere spectiv ere gion.
R The ignition isswitc hedonsothat vehicle
dat acan betransf erredaut omatic ally.
Multimedia system:
4 Phone 5
ª Contac ts #
Call Mercedes meconnect.
The callismade.
Af terconf irmation, themultimedia system
sends there qu ired vehicle data.The data
tr ansf erissho wninthemedia display. 27
2
Multimedia system

em
ployeedeals withyo ur appoin tment.The
inf ormat ionisthen sent toyour desir ed
ser viceout let.
This willcontact youto conf irm theappoint‐
ment andifneces sarycon sult about the
de tails.
% Ifyo usele ctLat erafte rth eser vice messag e
appear s,themessag eis hidden andreap‐
pear sat alat er tim e.
Tr ansf erre ddata during aMer cedes mecall
If yo uini tiat easer vicecall usin gMer cedesme,
dat ais transf erredto enable targeted advice and
an efficie ntser vice .
The follo wing requ iremen tsmus tbe fulf illed for
th etransf erofthedat a:
R The ignition isswitc hedon.
R The requ ired dat atransf ertech nol ogy issu p‐
po rted bythemobile phonenetworkpr o‐
vider .
R The qualit yof themobile connect ionissuf fi‐
cie nt. Mu
lti-sta ge trans ferdepe ndsonthefo llo wing
fa ct or s:
R Reason forth einitiat ionofthecall
R The available mobilephon etransm ission
te ch nol ogy .
R The activatedMer cedes meconnectser v‐
ices.
R The service select edinthevo ice con trol sys‐
te m.
Dat atransf erifMer cede sme connectser v‐
ice sar eno tactiv ated
If no Mer cedes meconnect services areactiv a‐
te d, thefo llo wing datais transf erred:
R Vehicle identif ication number
R Time ofthecall
R Reason forth einitiat ionofthecall
R Conf irmation ofthedat apr otect ion prom pt
R Coun try ind icat oroftheve hicle
R Setlanguag efo rth emultimedia system
R Telephon enumb erofthecomm unication
platf orm ins talled intheve hicle If
acall ismade fora ser vice appointment via
th eser vice reminder ,th efo llo wing datais also
transmit ted:
R Cur rent mil eage and main tenance data
If acall ismade afte rau tomatic accide ntor
br eakdo wndetection using themultimedia sys‐
te m, thefo llo wing datais also transm itted:
R Cur rent mil eage and main tenance data
R Cur rent vehicle location
If Ac cid ent and Brea kdo wnManag eme ntis
cal led via thevo ice con trol system and no
ser vice hasbeen activated, thefo llo wing data
can also becalled upfrom theve hicle bythe
Mer cedes-Ben zCus tomer Cent er:
R Current vehicle location
Data transf erifMer cedes meconne ctser v‐
ices areactiv ated
Onl yif th ere spectiv eser vice isactiv ated will
additional incident-specificdat abe transmitt ed
in thesecon dstag eto enable anoptimal
ser vice. 27
4
Multimedia system

An
eme rgency callcan bemade automatical ly
( / pag e27 7) or ma nua lly(/ page 277).
Onl ymak eemerg encycallsif yo uor other sar e
in need ofrescue. Donotmak ean emer gency
cal lin theeve ntofabr ea kdo wnorasimil arsit‐
ua tio n.
Di spl aysin themed iadisp lay
SOS READY: eCall available
SO SNOT READY: theignition isno ton oreCall
is no tav ailable.
Dur ing anact ive emer gency call,0053 appe ars
in thedispla y.
Yo ucan find mor einf orma tionon there gional
av ailabilit yof eCall at:ht tp s:// www .merced es-
ben z-mobi le.com /extra /eca ll/
% Ifth er eis amalfunct ionintheemer gency
cal lsy stem (e.g. amalfunct ionwithth e
speak er,micr ophone, airbag,SOS button), a
cor responding messageappea rsinthemul‐
tifun ction displa yof theins trument cluster. Tr
igg ering anaut omat icemer gency call
Re quirement s
R The ignit ionisswitc hedon.
R The star terbatt eryis suf ficie ntlych arge d.
If re stra int systems suchas airbags orEmer ‐
ge ncy Tensi oni ng Device sha ve been activated
af te ran accide nt,theMer cedes- Benzemer‐
ge ncy callsy stem mayaut omaticall yinitiat ean
emer gency call.
The eme rgency callhas been made:
R Avo ice con nection ismade totheMer cedes-
Benz emergency callcent er.
R Ames sage withacc iden tdat ais transm itted
to theMer cedes- Benzemergency callcent er.
The Mercedes-B enzeme rgency callcent er
can trans mit theve hicle position datato one
of theemer gency callcent ers.
The SOS button intheove rhead control panel
fl ashes untilth eemer gency callis finis hed .
It is no tpo ssi ble to immed iatelyend anaut o‐
matic emergency call. If
no conne ctioncan bemade totheemer gency
ser vice sei th er,a cor responding message
appea rsinthemedia display. #
Dialth elocal emergency num beron your
mob ilephon e.
If an eme rgency callhas been initiat ed:
R Remain intheve hicle ifth ero ad and traffic
condi tions permit youto do sountil avo ice
con nection ises tablished withth eemer‐
ge ncy callcent eroperator.
R Bas edon thecall, theoper ator decides
whe ther itis neces saryto cal lre scue teams
and/ orthepolice totheacciden tsit e.
R Ifno vehicle occupant answers, an ambu‐
lance issent totheve hicle immediat ely.
Tr igg ering ama nual emer gency call #
Press and hold theSOS buttonintheove r‐
head controlpanel forat lea stone second.
The emer gency callha sbe en ma de:
R Avo ice con nection ismade totheMer cedes-
Benz emergency callcent er. Mu
ltimed iasystem 27
7

R
freq uent operation inmount ainouste rrain or
on poor road sur faces
R whe nth eengine isoftenleft idling forlong
per iods
R oper ation inpar ticula rly dus tycond ition s
and /orif air -rec ircula tion mod eis freq uen tly
used
In these orsimilar operating conditions ,ha ve the
int erior airfilt er ,engin eair clean er,engin eoil
and oilfilt er etc. chang edmor efreq uent ly.The
tir es mus tbe checkedmor efreq uentl yif th e
ve hicle isoper ated under increased loads. Fur‐
th er information canbeobt ained ataqu alif ied
spec ialistwo rkshop. Batt
erydisconne ctionperiods The
ASSYSTPL US service interva ldispla ycan
calc ulateth eser vice duedateonl ywhen the
batt eryis con nected. #
Notedown theser vice duedatedispla yedon
th eins trument displaybef orediscon necting
th ebatt ery(/ page300). Engine
compartment Opening
andclosing thehood &
WARNIN GRisk ofacci dent dueto driv‐
ing withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood
is loc ked. &
WARNIN GRisk ofacci dent andinjury
when openingand closingthehood
The hood maysuddenl ydr op intoth eend
position .
Ther eis arisk ofinjur yfo ran yone inthe
hood's rang eof mo vement. #
Donotopen orclose thehood ifth er e
is aper son inthehood's rang eof mo ve‐
ment. &
WARNIN GRisk ofburnswhen opening
th ehood
If yo uopen thehood when theengine has
ove rheat edorwhen ther eis afire inthe
engine compartmen t,th efo llo wing situat ions
ma yocc ur:
R Youco uld come intoco ntact withho t
ga ses.
R Youco uld come intoco ntact withot her
ho t,escaping operating fluids. #
Beforeopen ingthehood, allowthe
ove rheat edengine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofinju rydue tomo ving
par ts
Com ponents intheengine compartmen tma y
con tinue running orstar tup sudden ly,ev en if
th eignition isswitc hedoff. Maint
enanc eand care30
1

Mak
esur eof thefo llo wing beforeper form ing
ta sk sin theengine compartmen t: #
Swi tchth eignition off. #
Neverre ac hint oth edang erzon esur‐
ro und ingmovingco mp onent s,e.g. the
ro tatio nar ea ofthefa n. #
Remo vejewe leryand watche s. #
Keep items ofclo thing and hair away
fr om moving parts. &
WARNIN GRisk ofinju ryfrom touc hin g
co mp onent sunder voltag e
The ignit ionsystem and thefuel injec tion
sy stem workund erhigh voltag e. Youco uld
re cei vean elec tric shoc k. #
Neverto uc hco mp onent sof theignition
sy stem orthefuel injec tionsystem
when theignition isswitc hedon. &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntpar tsintheengine com‐
par tmen tcan bevery hot,e.g. theengine,
th ecooler andpartsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GRisk ofinju ryfrom using the
winds hieldwiper swhile theengine hood
is open
When theengine hoodisopen andthewind‐
shield wipersar ese tin mo tion ,yo ucan be
tr apped bythewiper linkage. #
Alw aysswitc hof fth ewindshield wipers
and ignition beforeopening theengine
hood. Opening
thehood #
Torelease thehood, pullonhandle 1. 302
Maintenanc eand care