belt MERCEDES-BENZ C-CLASS CABRIOLET 2021 Owner's Manual

1
Steer ing wheel gearshif tpaddles →
139
2 Comb inationswit ch →
109
3 Instrument display →
201
4 DIRECT SELECT leve r →
136
5 Media display →
220
6 Glovebox →
101
7 Start/ stop butt on →
125
8 Climat eco ntro lsy stems →
120
9 Calls upthemain functionsof themultimedia
sy stem →
224
A Hazar dwa rning light system →
110
B PASSENGER AIRBAGind icat orlam ps →
47
C Stor ag ecom partmen t →
101
D Controller forvo lume andswitc hingsound
on/ off →
220
E Swit ches themultimedia system on/ off →
220
F Extends/ retracts theseat beltextende r →
40 G
Ope nsand closes thesof tto p →
72
H Activates and deacti vatesAIR CAP →
75
I Opens thestow agecom partment →
101
J Opens andcloses theside windo ws →
78
K ECO star t/ stop funct ion →
133
L ActivePa rking Assist →
195
M Setstheve hicle leve l →
183
N DYNA MIC SELE CTswitc h →
135
O Touc hpad →
221
P Control pan elforth emultimedia system →
202
Q Adjus tsthesteer ing wheel electrically →
95
Switc hesthesteer ing wheel heateron/ off →
95
R Contr olpanel:
On- boar dcom puter →
202
Cr uise control →
158
Ac tiveDis tance AssistDIS TRONI C →
162
S Diagno stics con nection →
26 At
aglanc e– Coc kpit 7

1
003E003D Turn signal lights →
109
2 005E Rear foglam p →
109
3 0057 Highbeam →
109
0058 Lowbeam →
108
0060 Parking lam ps →
108
4 ÿ Coolan tte mp eratur e →
451
5 Coolant temp eratur edispla y →
201
6 L Distance warning →
457
7 00E9 Seatbelt →
449
8 0077 Tire pressur emonit oring system →
460
9 Ù Powe rst eer ing →
450
A 0024 Electric pa rking brak e(yello w) →
454
B Elec tric par kingbr ak e(red) →
454
0049 USAonl y
0024 Canada only C
0075 Restra int system →
449
D Brak es (red) →
454
0027 USAonly
004D Canad aonly
E 00B6 Reser vefuel withfuel filler flap locatio n
ind icat or →
451
F Fuelleve l →
201
G 00C6 Recup erati ve Brak eSy stem, USAonl y →
454
004D Brak es (yello w), Canada only →
454
H ä Suspension →
457
I 003D Electrical mal functi on →
451
J 00B9 CheckEngine →
451
K 0025 ABS →
458
L 00BB ESP®
OFF →
458
00E5 ESP®
→
458 At
aglanc e– Indicat orand warning lam ps(Widesc reen Coc kpit) 13

and
your dat apr otect ion rights caneither be
fo und onthemanuf acturer'swebsit eor youwill
re cei vethis inf ormatio nas par tof theva rious
ser vices andservice offers .The reyouwill also
fi nd thecon tact informati onforth emanuf ac‐
tur erand itsdat apr otect ion officer s.
At awo rkshop, forex am ple, withth esuppor tof
a specialis tand possibly fora fe e, youcan have
dat are ad out whic his stor ed onlylocally inthe
ve hicle. Multimedia
system/M ercedes meconnect If
th eve hicle iseq uipped withth emultimedia
sy stem orMer cedes meconnect ,additional data
about theve hicle's operation, theuse ofthe
ve hicle incer tain situat ions,and thelocation of
th eve hicle maybe com piled bythemultimedia
sy stem orMer cedes meconnect .
Fo radd itional information pleasereferto the
ch ap ter"Mu ltimed iasystem" and/or the
Mer cedes meconn ectTerm sand Conditions. Ev
ent data recor der s US
Aonl y:
This vehicle iseq uipped withan event data
re cor der (EDR ).The mainpu rpose ofan EDRis
to recor d,incer tain crash ornear crash-lik esit‐
uation s,suc has an airbag deployment orhitt ing
a ro ad obs tacle ,da ta that will assis tin unde r‐
st andi nghowave hicle's systems perform ed.
The EDRis designed torecor dda ta relat ed to
ve hicle dynamics andsafetysy stems fora shor t
per iod oftime, typica lly30 seconds orless.
The EDR inthis vehicle isdesigned torecor d
su ch dat aas:
R Howvarious systems inyour vehicle were
oper ating
R Whe ther or notth edr iver and front
passeng erseat belts werebuc kled/f astened
R Howfar(if at all)th edr iver wa sdepr essing
th eaccelera torand/or brak epeda land
R Howfast theve hicle wastrave ling
This datacan help prov ide abe tter under stand‐
ing ofthecir cums tances inwh ich acci dents and
inju ries occur .NO TE: EDRdat ais recor ded by yo
ur vehicle onlyif anon- trivial crash situation
occur s;no dat ais recor ded bytheED Runder
nor mal driving conditions andnoper sonal data
(e.g. name, gende r,ag eand acciden tloc atio n)is
re cor ded .Ho wever,ot her parties, suchas law
enf orcement ,could combine EDRdatawit hth e
typ eof personally identifying dataro utin ely
acq uired dur ing acr ash inve stigation .
To read dat are cor ded byan EDR,spec ialequip‐
men tis requ ired, and access totheve hicle or
th eED Ris needed. Inaddition totheve hicle
manuf acturer,ot her parties that have thespecial
eq uipment, suchas law enf orcemen t,can read
th einf ormation byacc essi ngtheve hicle orthe
EDR.
EDR data ma ybe used incivil andcrimina lmat‐
te rs as ato ol inaccident recons tructi on,acci ‐
dent claims and vehicle safety. Since theCr ash
Dat aRe trie va l(CDR) tool that isused toextract
da ta from theED Ris comm erciall yav ailable,
Mer cedes-Ben zUS A,LLC("MBUS A")expressl y
disclaims anyand allliability arising from the
ex tracti onofthis inf ormatio nby unaut horized
Mer cedes-Ben zper son nel. Gen
eral no tes 33

Re
stra int system Pr
otection prov ided bythere stra int system The
restra int system includes thefo llo wing com‐
pone nts:
R Seat beltsystem
R Airbags
R Child restra int system
R Child seatsecur ingsystems
The restra int system can help preve nttheve hi‐
cle occupants from coming intocont actwith
par tsof theve hicle interior intheev ent ofan
acciden t.In theev ent ofan acciden t,th e
re stra int system can also reduce thefo rc es to
whic hth eve hicle occupants aresubject ed.
A seat beltcanonlypr ov ide thebes tle ve lof pro‐
te ction ifit is wo rncor rectl y.Dep endingonthe
de tected acci dent situation, Emerg encyTensi on‐
ing Device sand /or airba gssupp lement thepr o‐
te ction offere dby acor rectl ywo rnseat belt.
Emer gency Tensi oni ng Device sand /or airba gs
ar eno tde ploy ed ineve ryacc iden t. In
order forth ere stra int system toprov ide the
int ended leve lof protect ion, eachve hicle occu‐
pant mustobser vethefo llo wing informatio n:
R Fasten seat belts correctl y.
R Sitinan almos tup right seat position with
th eir bac kag ains tth eseat backres t.
R Sitwithth eir feet resting onthefloor ,if pos‐
sible.
R Alw ayssecur eper sons under 5ft (1.50 m)
ta llin an addition alrestra int system suitable
fo rMer cedes-Benz vehicles.
Ho wever,no system available toda ycan com‐
ple tely elim inat einj uries and fata lities ineve ry
acc iden tsit uatio n.Inpar ticular ,th eseat belt
and airbag gener ally do notpr otect agains t
objec tspene trating theve hicle from theoutside.
It is also notpossible tocom plet elyru le out the
ri sk ofinjur ycaused bytheairbag deploying. Re
duce dre stra int system protection &
WARNIN GRisk ofinju ryor deat hdue to
modif icationstothere stra int system
Ve hicle occupants mayno long erbe protec‐
te das intended ifalt erations aremade tothe
re stra int system. #
Neveralt er thepar tsof there stra int
sy stem. #
Neverta mp erwit hth ewir ing orany
electr oniccomponen tpar tsor their
sof tware. If
it is neces saryto modify theve hicle toacc om‐
modat eaper son withdisabil ities, con tact an
au thor ized Mercedes-B enzCent erforde tails.
US Aonl y:forde tails, con tact ourCu stomer
Assis tance Center on 1-800-F OR-MER Cedes
(1‑80 0‑367‑63 72). Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐ Occ
upant safety 35

is
occ upied, makesur e,bo th bef oreand during
th ejour ney,that thest atus ofthefront
passeng erairbag iscor rect (/ page 47). &
WARNIN GRisk ofburnsfrom hotair bag
com ponents
The airbag partsareho taf te ran air bag has
been deployed. #
Donotto uc hth eair bag parts. #
Have adeplo yedair bag replaced ata
qu alif ied spec ialistwo rkshop assoon
as possible . Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt.Take this int oacc ount ,par tic‐
ular lyifan Em erge ncy Tensi oni ng Device istrig ‐
ge redor an airbag deployed.
If th eEmer gency Tensi oni ng Device sar etrig ‐
ge redor an airbag isdeplo yed, youwill hear a
ban g,and asmal lamoun tof powder mayalso be
re leased:
R The bang willnotge ner ally affect your hear ‐
ing . R
Ingener al,th epo wder released isno thaz‐
ar dous tohealt hbut maycause short-term
br eat hing difficul ties toper sons suffering
fr om asthma orother pulmonar yconditions .
Pr ov ided itis saf eto do so, leavetheve hicle
immediat elyoropen thewindo win order to
pr eve ntbrea thing difficul ties .
Airb agsand pyrotech nic Emerg encyTensi oni ng
De vice scont ain pe rchlor atemat erial, whic hma y
re qu ire spec ialhandlin gor environm entalpro‐
te ction measures. Na tional guideline sre ga rding
wa ste disposal mustbe obser ved. InCalif ornia,
see https:/ /dtsc.ca.go v/.Using thesear ch
function, youwill find informa tionon perchlo‐
ra te,fo rex am ple. Seat
belts Pr
otection prov ided bytheseat belt Alw
aysfa sten your seat beltcorrect lybef ore
st ar tin gajo ur ne y.Asea tbe ltcan only prov ide
th ebes tle ve lof protect ion ifit is wo rncor rectl y. &
WARNIN GRisk ofinju ryor deat hdue to
inc orrectl yfa stened seatbelt
If th eseat beltisno two rncor rectly ,it can‐
no tper form itsintended protect ive func tion.
In addition, anincor rectly fastened seatbelt
can also cause injuries,forex am ple, inthe
ev ent ofan acciden tor when braking or
ch ang ingdirect ion sudden ly. #
Alw aysensur eth at all vehicle occu‐
pants have their seat belts fastened
cor rectl yand aresitti ngprope rly. Alw
aysobser vetheins truction sabout thecor‐
re ct driver's seatpos ition and adjus ting theseat
(/ page84 ).
In order forth ecor rectly wornseat belttopro‐
vide theint ended leve lof protect ion, eachve hi‐
cle occupant mustobser vethefo llo wing infor‐
matio n:
R The seat beltmustno tbe twis tedand must
fi t tig htly and snuglyacr oss thebody . Occ
upant safety 37

R
The seat beltmustbe routed acr oss thecen‐
te rof theshoulder andaslow do wn across
th ehips aspossible.
R The shoulder sectionoftheseat beltshould
no tto uc hyo ur neck nor berouted unde r
yo ur arm or behin dyo ur bac k.
R Avoid wearing bulk yclo thing, e.g. awint er
coat .
R Push thelap belt down asfaras possi ble
acr oss your hips andpulltight wit hth eshoul‐
der sect ionofthebelt. Neverro uteth elap
belt across your abdom en.
Pr egn ant women mustals ota ke par ticular
car ewit hth is.
R Neverro uteth eseat beltacross shar p,poin‐
te d, abr asiv eor fragile objec ts.
R Onlyone person should useeachseat beltat
an yone time. Neverall ow babies andchil‐
dr en totrave lsitt ing onthelap ofano ther
ve hicle occupant.
R Neversecur eobjects withaseat beltifth e
seat beltisalso being usedbyone ofthe
ve hicle's occupants. Alwaysobser vethe
ins truct ions forloa ding theve hicle when secur
ingobject s,lugg ageor loads
(/ page98).
Also ensur eth at no obj ect s,e.g .a cus hion ,
ar eeve rpla ced between aper son and the
seat.
The seat belts onthefo llo wing seats areeq uip‐
ped withaspec ialseat beltretract or:
R Front passeng erseat
R Rear seat s
Ac tivateor deacti vate thespecial seatbelt
re tract or(/ page 55).
If ch ildr enaretra veling intheve hicle, besur eto
obser vetheins truction sand safetyno teson
"Chi ldren intheve hicle" (/page52). Limitations
ofthepr otection prov ided bythe
seat belt &
WARNIN GRisk ofinju ryor deat hdue to
an incorrect sea tpos ition
The seatbel tdoe sno tof ferth eint ended
le ve lof protect ion ifyo uha ve notmo vedth e
seat backres tto an almos tve rtical posit ion.
In par ticular ,yo uco uld slip beneathth eseat‐
belt andbecome injured. #
Adjus tth eseat proper lybef orebegin‐
ning your jour ne y. #
Alw aysensur eth at theseat backres tis
in an almos tve rtical posit ionand that
th eshoulder beltisrouted acr oss the
cent erofyour sho ulder . &
WARNIN GRisk ofinju ryor deat hdue to
an extende dsea tbe ltex tende rwh ile th e
ve hicle isin mo tion
If th eseat beltdoes notsit cor rectly onthe
body ,it cann otper form itsintended protec‐
tiv efunc tion. 38
Occupant safety

#
Alw aysensur eth at theseat belt
ex tende ris retract edwhile th eve hicle
is in mo tion. If
th eseat beltextende rdo es notre tract auto‐
matical ly,it can beretract edmanua lly.To do so,
pr ess theseat beltextende rba ck asfaras itwil l
go bef orest ar tin gth eve hicle. Pressing theseat
belt extende rba ck intoplace requ ires forc e. &
WARNIN GRisk ofinju ryor deat hwhen
additional restra int systems areno tused
fo rper sons withasmal lerstatur e
Pe rsons under 5ft (1.50 m)ta llcan notwe ar
th eseat beltcorrectly without asuit able
additional restra int system. #
Alw ayssecur eper sons under 5ft
(1 .50 m)tallin asuit able restra int sys‐
te m. &
WARNIN GRisk ofinju ryor deat hdue to
damag edormodif iedseat belts
Seat belts cannotprov ide protect ion inthe
fo llo wing situat ions:
R The seat beltisdamag ed,has been modi‐
fi ed, isex treme lydirty, bleac hedordyed
R The seat beltbuckleisdamag edor
ex treme lydir ty
R Modif ication sha ve been made tothe
Emerg encyTensi oni ng Device ,sea tbe lt
anc horageor sea tbe ltre tract or
Sea tbe lts ma ysu stain non-visi ble damag ein
an acc iden t,e.g .due toglass splin ters.
Modif iedordamag edseat belts could tear or
fa ilin theev ent ofan acciden t,forex am ple.
Modif iedEmerge ncy Tensi oni ng Device s
cou ldacci dentally trig ge ror failto function
as intended . #
Nevermodify theseat beltsystem, for
ex am ple theseat belt, seatbeltbuckle,
Emer gency Tensi oni ng Device ,sea tbe lt
anc horageand seatbe ltre tract or. #
Makesur eth at theseat belts are
undamag ed,notwo rnand clean. #
Alw aysha ve theseat belts checked
immed iatelyaf te ran accide ntata
qu alif ied spec ialistwo rkshop. Onl
yuse seat belts whichha ve been approved
fo ryo ur vehicle byMer cedes-Ben z. &
WARNIN GRisk ofinju ryor deat hfrom
deplo yedpy rotech nic Emerg encyTen‐
si oni ng Device s
Py rotech nic Emerg encyTensi oni ng Device s
th at have been deployedar eno long eroper a‐
tion aland areunable toper form their inten‐
ded protect ive func tion. #
Ther efor e, have deplo yedpy rotech nic
Emerg encyTensi oni ng Device simm edi‐
at ely replaced ataqu alif ied spec ialist
wo rkshop. Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt. Occupa
ntsaf ety 39

*
NO
TEDama gecau sed bytrap ping the
seat belt If
an unused seatbeltisno tfully retract ed,it
ma ybe come trap pe din thedoor orinthe
seat mechanism. #
Alw aysensur eth at an unus edseat belt
is full yre tract ed. Ex
tending/r etra ctin gth eseat beltextender When
thedoor isclosed, theseat beltextende r
ex tends.
Yo ucan also extend theseat-belt extende rby
usin gth eõ seat-belt extende rbu tton inthe
cent erconso le.
The õ seatbel tex tende rbu tton mayal so be
lo cat edintheswitc hpanel abovethelight
switc hin Mer cedes- AMGvehicles. #
Switc hon theignition . #
Press theõ seatbeltextende rbu tton.
The seatbe ltex tende rex tends. The
seatbe ltex tende rre tracts again in thefo l‐
lo wing cases :
R The seat belttongu eis eng aged intheseat
belt buckle
R The seat belttongu eis no teng aged inthe
seat beltbucklewithin 60seconds
If yo upr ess theõ seatbeltextende rbu t‐
to nag ain in this case, theseat beltextende r
wi llex tend again.
R The respectiv edoor isopened
R Youfo ld theseat backres tfo rw ards
R Nobody issitt ing inthefront passeng erseat
If yo upr ess theõ seatbeltextende rbu t‐
to nag ain in this case, theseat beltextende r
wi llno long er extend.
The seatbe ltex tende rmu stalw aysbe retract ed
wh ile th eve hicle isin mo tion. Fa
stening seatbelts If
th eseat beltispulled quickl yor shar ply, the
seat beltretract orlock s. The seat beltstra pcan‐
no tbe pulled outanyfur ther. #
Alw ayseng ageseat belttongu e2 ofthe
seat beltintoseat beltbuckle1 ofthecor‐
re sponding seat.
Ve hicl eswith automatic front passen gerair‐
bag shutoff: 40
Occupant safety

*
NO
TEDep loym ent oftheEmer gency
Te nsi oni ng Device andside airba gwh en
th efront passeng erseat isunocc upied If
th eseat belttongu eis eng aged intheseat
belt buckleoftheunocc upied front
passeng erseat, theEmer gency Tensi oni ng
De vice andtheside airbag mayalso deplo y
in theev ent ofan acciden talong withot her
sy stems. #
Onlyone person should useeachseat
belt atanyone time. Ve
hicl eswithout automatic front passen ger
airb agshu toff:
* NO
TEDep loym ent oftheEmer gency
Te nsi oni ng Device when thefront -
passeng erseat isunocc upied If
th eseat belttongu eis eng aged intheseat
belt buckleoftheunocc upied front -
passeng erseat, theEmer gency Tensi oni ng
De vice mayal so deploy intheev ent ofan
acciden talong withot her systems. #
Onlyone person should useeachseat
belt atanyone time. Seat
beltadjustm ent function Ve
hicl eswith PRE-S AFE®
:Af tera front seat
belt hasbeen fastened, theaut omatic seatbelt
adjus tmentma yappl ya cer tain tigh tening forc e.
Do nothold theseat belttight lywhile itis
adjus ting.
Yo ucan activat eand deac tivateth eseat belt
adjus tmentfunc tion using themultimedia sys‐
te m (/ page41 ). Ac
tiv atin g/deac tivatin gse at beltadjus tment
vi a the multi mediasy stem Multi
media system:
4 Vehicle 5
î Vehicle Setting s
5 Belt Adjustmen t #
Activate0073 ordeacti vate 0053 thefunc tion. Re
leasing seatbelts #
Press there lease buttonintheseat belt
buc kleand guide theseat beltbackwit hth e
seat belttongu e. Se
at beltwa rning funct ionforthe driver and
fr on tpass enger The
00E9 seatbeltwarning lam pin theins tru‐
ment displa yis are minder that all vehicle occu‐
pants mustwe artheir seat belts correctly .
The 00E9 seatbel twa rning lam plight sup forsix
seconds everytim eth eve hicle isstar ted.
In addition, awa rning tone maysou nd.
Whe nth edr iver's andfront passeng er'sdoor s
ar eclosed andthedr iver and front passeng er
ha ve fastened their seat belts, theseat belt
wa rning goes out.
In thefo llo wing cases ,th eseat beltwarning
light sup dur ing ajour neyif:
R The vehicle speed exceeds 15mp h
(25 km/ h)and thedr iver's orfront
passeng erseat beltisno tfa stened. Occ
upant safety 41

R
The driver or front passeng erunf astens their
seat beltwhile theve hicle isin mo tion. Airbags
Ov
ervie wof airbags 1
Driver's knee airbag
2 Driver's airbag
3 Front passeng erairbag
4 Front passeng erknee airbag
5 Head airbag
6 Side airbag The
installation locationofan airbag isident ified
by theAIRB AGsymbol.
When enabled, anairbag canprov ide addition al
pr otect ion forth ere spectiv eve hicle occupant.
Pot entialprotect ion prov ided byeac hairbag:
R Knee airbag: thigh, knee and lowe rleg
R Driver's airbag,front pass engerairb ag:head
and ribcag e
R Head airbag: head
R Side airbag: ribcag e,also pelvis forfr ont seat
occupa nts
* NO
TEMercede s-AMG vehicles #
Obser vetheno tesin theSupplement .
Yo uco uld other wise failto recogni ze
da ngers. &
WARNIN GRisk ofinju ryor deat hif th e
co-dr iver airba gis ena bled
If th eco- driver airbag isenabled, ach ild on
th eco- driver seat maybe stru ck bytheco-
dr iver airbag during anacciden t. NEVE
Ruse are ar wa rd-faci ng child restra int
sy stem onaseat withan ENABL EDFRONT
AIRB AG;DE ATHor SERIOU SINJU RYtothe
CH ILD can occur . When
installing ach ild restra int system onthe
fr ont passeng ersea t,obse rveth eve hicle-spe‐
cif icinf ormation (/page60). Also, always
obser vetheno teson rear wa rd-faci ng or
fo rw ard-f acin gch ild restra int systems onthe
fr ont passeng ersea t.
Inf ormation onaut omatic front passen ger
airbag shutoff
The front passeng erairbag canonly bedep loye d
in an acc ident ifth ePA SSENGER AIRBAGOF F
ind icat orlam pis off.Ifth efront passeng erseat
is occupied, makesur e,bo th bef oreand during
th ejour ney,that thest atus ofthefront
passeng erairbag iscor rect (/ page 47). 42
Occupant safety