2021 MERCEDES-BENZ C-CLASS SEDAN airbag

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
When usingapo we rwa sher ,maint ainamini‐
mum distance of11.8 in(30 cm).
Re ar vie wcamer aand surround viewcamer a
R Open thecamer aco verwit hth emultimedia
sy stem (/ page19 5).
R Usecle an waterand asof tclo thtocle an the
came ralens .
R Donotuse apo we rwa sher .
Ta ilpip es
R Clean withaclean ingagent recomme nded
fo rMer cedes-Benz, especiallyin thewint er
and afte rwa shing theve hicle.
R Donotuse acidic cleaning agents. No
teson car eof theint erior &
WARNIN GRisk ofinju ryfrom plastic
par tsbreakin gof faf te rth euse ofsol‐
ve nt-ba sedcarepr od ucts
Ca reand cleanin gpr oduc tscon tainin gsol‐
ve nts can causesurfaces inthecoc kpit to become
porous. When theairbags are
deplo yed, plas ticpar tsma ybr eak away. #
Donotus ean ycar eor cle ani ng prod ‐
ucts containing solvents tocle an the
coc kpit. &
WARNIN GRisk ofinju ryor deat hfrom
bleac hedseat belts
Bleac hingordyeing seat belts canseverely
we aken them.
This can, forex am ple, caus eseat beltsto
te ar or failin an acc ident . #
Neverblea chordyeseat belts. To
avo iddamag eto theve hicle, observethefo l‐
lo wing noteson cleaning andcare:
Seat belts
R Clea nwit hluk ewa rmand soap ywa ter.
R Donotus ech emical cleaningag ent s.
R Donotdr yby heating them toove r17 6°F
(80°C )or exposing them todirect sunlight .Displa
y
R Switc hof fth edispla yand letit cool down.
R Clean thesur face car efu llywith amic rofiber
clo thand asuit able displa ycar epr oduc t
(TF T-LC D).
R Donotus ean yot her agents.
Plas tictrim
R Clea nwit hadam pmicr ofiber cloth.
R Forhea vysoil ing: useaclea nerrecomme n‐
ded forMer cedes-Benz.
R Donotatt achsticke rs,fi lms orsimilar mate‐
ri als.
R Donotallo wcos metics,ins ect repellent or
sun cream tocome incont actwith theplas‐
tic trim.
Re alwo od and trim elemen ts
R Clean withamic rofiber cloth.
R Blackpiano-lac quer look: clean withadam p
clo thand soap ywa ter.
R Forhea vysoil ing: useaclea nerrecomme n‐
ded forMer cedes-Benz. 31
2
Maint enance andcare

Occupant
safety Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0075 SRS Malfunct ionServic e
Required *T
herestra int system ismalfunct ioning(/page36). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Front LeftMalfunction
Service Required(exa mp le) *T
hecor responding restra int system ismalfunct ioning(/page36). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Left Side Curtain Airbag
Malfunction Service
Requ ired(Exam ple) *T
hecor responding windowcur tain airbag ismalfun ctionin g(/ page36). &
WARNIN GRisk ofinju ryor fata linj urydue toamalf unctionin thewindo wcur tain airbag
The windo wcur tain airbag mightbetrigg ered unin tentio nallyor might notbe trigg ered atall intheev ent ofan
acciden t. #
Have thewindo wcur tain airbag checkedand repair edimmediat elyat aqu alif ied spec ialistwo rkshop. 380
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Fron tPassenger AirbagDis-
abled SeeOperator' sMan-
ual *T
hefront passeng erairbag hasbeen disabl edeve nth ough anadult oraper son ofadult statur eis on thefront
passeng erseat. Ifadditional forc es areapplied totheseat, thewe ight thesy stem detects maybe toolow. &
WARNIN GRisk ofinju ryor fata linj urydue toadisable dfron tpasse nger airbag
If th efront passeng erairbag isdisabled, thefront passeng erairbag willnotbe deplo yedin theev ent ofan acci‐
dent andcann otper form itsintended protect ive func tion.
A per son inthefront passeng erseat could then, forex am ple, com eint ocon tact with theve hicle's interior ,
especially ifth eper son issitt ing tooclose tothecoc kpit. #
Mak esur e,bo th bef oreand during thejour ney,that thest atus ofthefront passeng erairbag iscor rect. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Makesur eth at no obj ect sar etrapped underth efront passeng erseat. #
Chec kth est atus oftheaut omatic front passeng erairbag actuation (/page46). #
Ifneces sary,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
Front Passeng erAirb ag
Enabl edSee Operator 's
Manu al *T
hefront passeng erairbag willbeenabled whiletheve hicle isin mo tion inthefo llo wing situat ions:
R Even when ach ild, aper son ofsmaller statur eor an obj ect weighin gless than thesy stem weight thre shold is
locat edon thefront passeng erseat
R Even when thefront passeng erseat isno toccupied
The system mayde tect obje ctsorforc es that areaddin gto thewe ight applied totheseat. Displa
ymessag esand warning/ indic ator lam ps 38
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions &
WARNIN GRisk ofinju ryor deat hwhen usingach ild restra int system while thefront passeng erairbag is
enabled
If yo usec ureach ild inach ild restra int system onthefront passeng erseat andthefront passeng erairbag is
enabled, thefront passeng erairbag candeplo yin theeve ntofan acci dent.
The child could bestru ck bytheairbag. #
Ensur e,bo th bef oreand during thejour ney,that thest atus ofthefront passeng erairbag iscor rect.
NEVER useare ar wa rdfacing child restra int onaseat protect edbyan ACTIVE AIRBAGinfront ofit,DE ATHor
SERIOU SINJU RYtotheCH ILD can occur . #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Makesur eth at no obj ect sar etrapped underth efront passeng erseat. #
Chec kth est atus ofaut omat icfron tpasse nger airbag actuatio n(/ page46) . #
Ifnec essar y,consu ltaqu alif ied spec ialistwo rkshop immediat ely.
PRE-S AFEInoperat iveSee
Operator's Manual *
The PRE‑S AFE®
funct ionsaremalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. 382
Displa ymessag esand warning/ indic ator lam ps

Ac
tiv eSte ering Assis t
Ac tivati ng/d eactiv ating........... ..............175
Ac tiveEmerg encyStop Assis t................ 176
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 177
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>174
Sy stem limits. ........................................1 74
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>117
Swi tching on/of f.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 118
Ad diti ves
Engi neoil.... ............ ...............................372
Fu el....................................................... 372
Ad diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
Ad dres sbo ok
see Contacts
Ad jus tingthe balanc e/fader
Ad vanced soundsystem.. ......................2 99
Bur mes ter®
sur round soun dsy stem.. ...298 Ad
jus tingthe bass,mid- rang eand
tr eble
Bur mes ter®
sur round soun dsy stem ..... 298
Ad jus tingthe mid- rang e,treble and
bass
Burmes ter®
sur round soun dsy stem ..... 298
Ad jus tingthe sound focus
Bur mes ter®
sur round soun dsy stem ..... 298
Ad jus tingtreb le,mid- rang eand bass
se ttings
Ad vanced soundsystem.. ......................2 99
Bur mes ter®
sur round soun dsy stem ..... 298
ADS PLUS dam ping system
see AIRMA TIC
Ad vanced sound system
Ad jus ting thebalance/f ader............ ..... 299
Ad jus ting treb le,mid -rang eand bass
se tting s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 299
Ca lling upthesound menu.................... 299
Inf ormation.. .................................... ...... 298
Switc hingvolume adjustment on/ off... .2 99
Af ter-sales service center
see ASSYSTPL US Air
bag
Re duced protect ion.. ...............................4 4
Air distribut ion
Se tting. .................................................. 126
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRMA TIC
Air vents
Ad jus ting (front) ............ ........................ 129
Ad jus ting (rea r)............. .........................130
Air vents
see Airvents
Ai r-condi tioningsystem
see Climat econ trol
Air -recir cula tion mode..............................1 29
Air -water duct
Ke eping free... ....................................... 307
Airbag Activati on........... .....................................36
Fr ont airbag (driver ,fr ont passeng er)....... 41 Inde
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1

Ins
tallation locations................................ 41
Knee airbag.... .........................................4 1
Ov ervie w.. .................. ........................ ...... 41
PA SSENGER AIRBAGind icat orlam p....... 46
Pr otect ion.......................................... ...... 42
Side airbag ............................................... 41
Wi ndo wcur tain airbag .............................4 1
Air flow
Se tting. .................................................. 126
AIRM ATIC
Se tting.. .................................................1 89
Suspe nsion........... ............................ ..... 188
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Alt ernativ ero ute
see Route
Amb ientlighting
Se tting (mult imediasystem).. ................1 19 Andr
oidAuto
Con necting amob ilephon e...................2 70
Ending ...................................................270
Inf ormation ......................................... ... 270
Ov ervie w.. .......................................... ... 269
Sound settings... ................................... 270
Tr ans ferred vehicle data........................2 71
Anim als
Pe ts intheve hicle .............................. ..... 63
Anti-loc kbr aking system
see ABS(An ti-loc kBr akin gSy stem)
Anti-skid chains
see Snowch ains
Anti -thef tpr otection
Imm obiliz er...................................... ........ 85
Anticip ator yoccupa ntprotection
see PRE- SAFE®
(anticip ator yoccu‐
pa nt protect ion)
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
Apple CarPla y®
Connec tinganiPhone ®
... ......................2 68
Ending ...................................................269 No
tes... .................................................2 68
Ov ervie w.......... .....................................268
Sound settings ......................................269
Tr ans ferred vehicle data........................2 71
Assis tance systems
see Drivin gsaf etysy stem
ASS YSTPL US
Batt erydi sconne ctionpe riods..... ..........3 01
Dis play ing theser vice duedate............ 300
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 300
Re gular maint enance work<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 300
Spec ialser vice requ iremen ts................3 00
ATA (anti-thef tala rm system)
Ac tivati ng/d eactiv ating theint erior
mo tion sensor.. ....................................... 88
Ar ming/ disarming theto w- aw ay alar m...8 7
Dea ctivating thealar m............................ 86
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 85
Fu nctio nof theint erior motion sensor.... 87
The tow- aw ay alar mfun ction ...................8 6
AT TENTI ONASSIST
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>164
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 165
Sy stem limit ations. ................................ 164 44
2
Inde x

At
tention assistant
see ATTENTION ASSIST
Au dio 20
see Multimed iasystem
Au dio mode
Ac tivati ng med iamod e................ .......... 283
Co nnecti ngUSB devic es........... ............285
Cop yrights. ............................................283
Inf ormatio n............ ................................282
Inser ting/r emoving anSD card............. 283
Med iasea rch.. .................................. .....2 86
Ov ervie w.... ....... ....... ............................ .284
Pa use and playbac kfun ction .................2 85
Selecti ngatrac k............ .......................285
Selecti ngplayba ckoptions .................... 285
Tr ac klis t................................................ 285
Au thorized Mercedes- BenzCenter
see Qualif iedspec ialistwo rkshop
Au thorized workshop
see Qualif iedspecialis two rkshop
Au tomatic distanc eco ntr ol
se eAc tiveDis tance AssistDIS TRONI C
Au tomatic drivin glights ........... .................115 Au
tomatic engine star t(E CO star t/
sto pfunc tion)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ....139
Au tomatic engine sto p(E CO star t/
sto pfunc tion)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> .....139
Au tomatic fron tpass engerfr on tair‐
bag shutoff
Fu nctio nof theaut omatic front
passeng erfront airbag shutoff........... ..... 44
PA SSENGER AIRBAGind icat orlam p....... 46
Au tomatic fron tpass engerfr on tair‐
bag shutoff
see Automatic front pass engerfront
airb agshut off
Au tomatic mirrorfo lding function
Ac tivati ng/d eactiv ating........... ..............125
Au tomatic trans mis sion
DIR ECT SELEC Tleve r..... .................... .... 143
Dr ive pr ogr am disp la<005C001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ....142
Dr ive pr ogr am<0056001100110011001100110011001100110011001100110011001100110011
001100110011> ....................141
DY NA MIC SELE CTswitc h....................... 141
Eng aging drive po sitio n............ ............. 145
Eng aging neu tral ............. .......................144
Eng aging park position .................... ...... 145
Eng aging reve rsege ar. ...................... .... 144 Kic
kdo wn..... ..........................................147
Manual gearshif ting... ............................1 46
St eer ing wheel paddle shifters.............. 146
Tr ans miss ionposit iondispla y................ 143
Tr ans miss ionposit ions.......................... 143
Au tomatic trans mis sion (problem)
se eTr ans miss ion(problem ) B
Ba ghook .................................................... 108
BA S(Br akeAssis tSy stem). ...................... 160
Batt ery
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 66
Batt ery
see Battery(v ehi cle)
Batt ery(v ehi cle)
Ch <00440055004A004C0051004A0011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 325
Ch arging (Remo teOnline). ..................... 134
No tes... .................................................. 321
No tes(s ta rting assis tance and
ch argin g)............................................... 323
Re placing .............................................. 327
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ........325 Inde
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3