2020 MERCEDES-BENZ C-CLASS CABRIOLET Owner's Manual

eq
uipped withall featur esdesc ribed. Thisisalso
th ecase forsy stems andfunc tionsre leva nt to
saf ety. Ther efor e, theeq uipment onyour vehicle
ma ydif ferfr om that inthedescr iption sand illus‐
tra tion s.
The original purchase agreeme ntforyo ur vehicle
cont ains alis tof all ofthesy stems inyour vehi‐
cle.
Should youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter.
The Oper ator's Manual andMaint enanc eBook let
ar eim por tant docum ents andshould be kept in
th eve hicle. Ser
vice andvehicl eoper ation Ve
hicl eoper ation outside theUS Aor Cana da When
youar eabr oad withyo ur vehicle, observe
th efo llo wing points:
R service point sor replacemen tpar tsma yno t
be available immediat ely. R
unle aded fuelmayno tbe available forve hi‐
cles withacat alytic converter .Leaded fuel
ma ycause damag eto thecat alytic converter .
R thefuel mayha ve an extreme lylow oct ane
num ber.Un suit able fuelcancause engine
damag e.
Some Mercedes-Benz modelsareav ailable in
Eur ope thro ugh ourEuropean DeliveryPr og ram.
Fo rmor einf ormation, pleaseconsult anauthor‐
ized Mercedes‑B enzservice center,or write to
one ofthefo llo wing address:
in theUS A:
Mer cede s-Benz USA,LLC
Eur opea nDeliv eryDepar tment
One Mercedes-Benz Drive
Sandy Springs, GA30328
in Canada:
Mer cedes-Benz Canada,Inc.
Eur opea nDeliv eryDepar tment
98 Vande rhoof Avenue
To ronto, Ont ario M4G 4C9 Mai
nten anc e Yo
ur cus tomer advisorconf irms theser vice in
th eser vice repor t. Ro
adside Assistan ce The
Mercedes -Benz Roadside Assis tance Pro‐
gr am offers tech nica lhel pin thecase ofa
br eakdo wn.Your calls totheto ll-f reeRo adside
As sis tance Hotline areans weredby our agents
24 hour sa da y,365 days aye ar.
1- 80 0-FO R-MER Cedes (1-800-367-63 72)(US A)
1-8 00-387-0 100(Canada)
Yo ucan find further information inthe
Mer cedes-Ben zRo adside Assis tance Progr am
br oc hu re (US A)orthe"R oadside Assistance"
secti oninthemaint enanc eand warrant yinf or‐
mat ionbook let(Canad a).Youwill find both in
th eve hicle document wallet. Chang
eof address orchang eof ow ner ship In
theeve ntofach ang eof addr ess, please send
us the"No tification ofaddr esschang e"inthe Gene
ralno tes 23

Ser
vice andGuarant eeboo kletor simpl ycal lth e
Mer cedes-Ben zCus tomer Assis tance Center
(US A)on theho tline number
1-8 00- FOR-MER Cedes (1-800-367-63 72)or Cus‐
to mer Service (Canada )on 1-800-38 7-0100. We
can then reac hyo uin atim elyfa shion, ifneces‐
sar y.
If yo usell your Mer cedes,pleas elea veall liter a‐
tur ein theve hicle sothat itis available tothe
ne xt ow ner .If yo uha ve pur chased aused vehi‐
cle, please sendusthe"No tice ofPur chase of
Used Car"intheSer vice andGuar anteebookle t
or sim plycall theMer cedes- BenzCustomer
Assis tance Center (US A)attheho tline number
1-8 00- FOR-MER Cedes (1-800-367-63 72)or Cus‐
to mer Service (Canada )at 1-800-38 7-0100. Po
ssible dangerdue tosubs tances hazard‐
ous tohealth In
com pliance withPr oposi tion65("Prop65"),
th efo llo wing detach able label hasbeen added to
eac hve hicle soldinCali forn ia: Oper
ating safety &
WARNIN GRisk ofacci dent dueto mal‐
functions orsystem failur es
If yo udo notha ve thepr escr ibed service/
maint enanc ewo rkor anyre qu ired repair s
car ried out, this could result inmalfunctions
or system failur es. #
Alw aysha ve thepr escr ibed service/
maint enanc ewo rkas wellan yre qu ired
re pair scar ried out ataqu alif ied spe‐
cialis two rkshop. &
WARNIN GRisk ofacci dent andinjuryas
a re sult ofincor rect mod ifica tions to
electr oniccomponen tpar ts
Modif ication toelectr oniccomponen ts,their
sof twareor wir ing could impair their func tion
and/or thefunc tion ofother networke dcom‐
ponen tpar ts.Inpar ticular ,sy stems releva nt
to saf etyco uld also beaffect ed.
As are sult, they ma yno long erfunction as
int ended and/or endangertheoper ating
saf etyof theve hicle. #
Neverta mp erwit hth ewir ing and elec‐
tr onic componen tpar tsor their soft‐
wa re. #
Yousho uld have all workon electr ical
and electr oniccomponent scar ried out
at aqu alif ied spec ialistwo rkshop. Obser
vethe"On-boar delectr onics"sect ionin
"T ec hnical data". 24
Generalno tes

&
WARNIN GRisk offire due toflammab le
mat erials onhotpar tsof theex haus t
sy stem
Flammable material suc has lea ves, grass or
twigs mayignit eif th ey come intocont act
wi th hotpar tsof theex haus tsy stem. #
When driving onunpavedro ads oroff-
ro ad, regular lych eckth eve hicle under‐
side. #
Remo vetrap pe dplants orother flam‐
mable material. #
Ifth er eis damag e,con sult aqu alif ied
spec ialistwo rkshop immediat ely. *
NO
TEDama getotheve hicle In
thefo llo wing situat ions,in par ticular ,th er e
is arisk ofdamag eto theve hicle:
R The vehicle becomes grounded, e.g.ona
high curb oran unpavedro ad R
The vehicle isdriven toofa st over an
obs tacle ,e.g. acurb ,spe edbump orpot‐
hole
R Ahea vyobject strike sth eunderbody or
ch assis components
In situatio nssuc has this, thebody ,th e
und erbody ,ch assis components,wheels or
tir es coul dbe damag edwithout thedamag e
being visible. Componen tsdamag edinthis
wa ycan unexpec tedly failor ,in thecase of
an acciden t,ma yno tabsorb theloads that
ar ise asintend ed.
If th eunderbody panelingisdamag ed,flam‐
mable materials suchas lea ves, grass or
twigs cancollect between theunderbody and
th eunderbody paneling.Thesematerials may
ignit eif th ey come intocont actwith hot
par tson theex haus tsy stem. #
Have theve hicle checkedand repair ed
immediat elyat aqu alif ied spec ialist
wo rkshop.
or #
Ifdr iving safetyis im pair edwhile con‐
ti nui ng your jour ne y,pull over and stop
th eve hicle immediat elyin accor dance
wit hth etraf fic condi tions,and cont act
a qu alif ied spec ialistwo rkshop. Ve
hicl eswith a48 Von-b oardele ctrical sys‐
te m (EQ Boo sttech nology) &
DANG ER Risk offata linj uryby touc hin g
damag edhigh -volt ageco mp onent s
Ve hicles witha48 Von-boar delectr icalsys‐
te m cont ainindivi dualhigh-v oltagecom po‐
nents. Thesehigh-voltagecom ponents are
under highvoltag e.
If yo umod ifycomp onent partsof these high-
vo ltag ecom pone ntsor touc hdamag edcom‐
pon entpar ts,yo uma ybe elec troc uted.
Hig hvo ltag ecom pone ntsma ybe damag ed
in an acc ident ,alt hough thedamag ema yno t
be visible. #
Neverper form modif icationstocom po‐
nent parts of high-v oltagecom ponents. Gener
alno tes 25

#
Neverto uc hdamag edcomp onent parts
of high-v oltagecom ponent s. #
Neverto uc hco mp onent partsof high-
vo ltag ecom pone ntsaf te ran accide nt. Ve
hicles witha48 Von-boar delectr icalsystem
con tain high voltag ecom pone nts. These compo‐
nen tsaremar kedwit hahigh voltag elabel: All
workon high voltag ecom pone ntsmus tbe
car ried out ataqu alif ied spec ialistwo rkshop. Dec
laration ofconf ormity forwi reless vehi‐
cle comp onent s
US A:"The wireless devic es ofthis vehicle com‐
ply withPa rt15 oftheFCC Rules. Opera tionis
subje ctto thefo llo wing twocon dition s:1) These
de vice sma yno tcause harmful interfere nce, and
2) The sedevice smu stacc eptan yint erfere nce
re cei ved, includin gint erfere nce that ma ycaus e
unde sired operation .Chan gesor modif ications
no tex pressl yappr ovedby thepar tyresponsible
fo rcom pliance could void theuser's author ityto
oper ateth eeq uipment. "
Canada :"The wireless devices ofthis vehicle
com plywit hIndus try Canada license-e xemp t
RSS standar d(s).Operationis subj ecttothefo l‐
lo wing twocon dition s:(1) These device sma y
no tcause interfere nce, and(2)The sedevice s
mu stacc eptan yint erfere nce, including interfer‐
ence that ma ycaus eunde sired oper ationof the
de vice. "
US A:"W ireless chargin gsy stem formobil ede vi‐
ces (mode l:WMI2 Wireless Mobile Interface):
th is de vice complies withPa rt18 oftheFCC
Ru les." The
name andaddr essofthere sponsible party
is:
peik eracus ticGmbH
Max-Planc k-St r.28-32
61 38 1Fr iedr ichsdor f
Ger man y Diagnos
ticsconnection
The diagno stics con nection isonl yint ended for
th econ nect ionofdiagnos ticdevices ataqu ali‐
fi ed specialis two rkshop. &
WARNIN GRisk ofacci dent dueto con‐
necting device sto thediagnos ticscon‐
nect ion
If yo uco nn ect equipme nttoadiagn ostic s
con nectionin theve hicle, itma yaf fect the
oper ation ofvehicle systems.
As are sult, theoper ating safetyof theve hi‐
cle could beaffect ed. #
Onlyconnect equipmenttoadiagn os‐
tic scon nectionin theve hicle whichis 26
Gener alno tes

appr
ovedfo ryo ur vehicle byMer cedes-
Benz . &
WARNIN GRisk ofacci dent dueto
object sin thedr iver's foot we ll
Obj ectsin thedr iver's foot we llma yim pede
pedal trav el or bloc kadepr essed pedal.
This jeopar dizestheoper ating androad
saf etyof theve hicle. #
Stow allobj ect sin theve hicle secur ely
so that they canno tget intoth edr iver's
fo ot we ll. #
Alw aysins tallth efloor mats securely
and asprescr ibed inorder toensur e
th at ther eis alw ayssuf ficie ntroom for
th epedals. #
Donotuse loose floor mats anddonot
place floor mats ontopof one another. *
NO
TEBatt erydi sc ha rging from using
de vice sconne cted tothediagnos tics
con nect ion Using
devices atthediagnos ticsconnect ion
dr ains thebatt ery. #
Chec kth ech arge leve lof thebatt ery. #
Ifth ech arge leve lis low, charge the
batt ery, e.g. bydriving acon sider able
dis tance. Co
nnecti ngequip ment tothediagnos ticscon‐
nect ioncan lead toemissions monitoring infor‐
mation beingrese t,forex am ple. This maylead
to theve hicle failing tomee tth ere qu iremen tsof
th ene xt emissions inspectionduring themain
inspect ion. Qualif
iedspecialis two rkshop
An author ized Mercedes-B enzCent erisaqu ali‐
fi ed specialis two rkshop. Ithas theneces sary
special skills,tools and qualif icat ionsto cor‐
re ctly carryout thewo rkrequ ired on your vehi‐ cle.
This particular lyapplies tosaf ety-re leva nt
wo rks.
Fo rth efo llo wing, alwaysha ve your vehicle
ch eckedat an aut hor ized Mercedes- BenzCen‐
te r:
R safety-re leva nt wo rks
R service andmaint enance work
R repair work
R modif icationsaswellas installation sand
con versions
R workon electr oniccomponent s
Mer cedes‑B enzrecomme ndsaMercedes‑Be nz
ser vice center. Co
rrect use oftheve hicl e
If yo ure mo veanywa rning sticke rs,yo uor other s
could failto recogni zecer tain dang ers. Lea ve
wa rning sticke rs inposit ion.
Obser vethefo llo wing informatio nin par ticular
when drivin gyo ur vehicle:
R thesaf etyno tesin this manual Gener
alno tes 27

R
tech nica lda ta forth eve hicle
R traf fic ru les and regulations
R laws and safetyst andar dsper tainin gto
mo torve hicles Pr
oblems withyour vehicl e
If yo usho uld exper ience apr oblem withyo ur
ve hicle, particular lyone that youbelie vema y
af fect its safeope ratio n,we urge youto cont act
an author ized Mercedes-B enzCent erimmedi‐
at ely tohave thepr oblem diagnosed andrecti‐
fi ed. Ifth epr oblem isno tre sol vedto your sat is‐
fa ction, plea se discu ssthepr oblem again with
an aut hor ized Mercedes- BenzCenteror,if nec‐
essar y,cont actusatone ofthefo llo wing
addr esses :
In theUS A:
Mer cede s-Benz USA,LLC
Cus tomer Assis tance Center
One Mercedes-Be nzDrive
Sand ySpr ings,GA 30328
In Can ada: Mer
cedes-Be nzCanad a,Inc.
Cu stomer Relation sDepar tment
98 Vande rhoof Avenue
To ronto, Ont ario M4G 4C9 Re
por ting safetydef ects
US Aonl y:
The follo wing text ispu blished asrequ ired of
manuf acturersunder Title 49, Code ofU.S. Fed‐
er al Re gulations, Part57 5pur sua nttothe
"N atio nalTraf fic and MotorVe hicle SafetyAc tof
19 66".
If yo ubelie vethat your vehicle hasadef ect
whic hcould cause acr ash orcould cause injury
or deat h,yousho uld imm ediat elyinf orm the
Na tional HighwayTraf fic Saf etyAd minis tration
(NHT SA)in addition tonotify ing Mercede s-Benz
US A,LLC.
If NHT SArecei vessimila rcom plaints, itma y
open aninve stigation ,and ifit finds that asaf ety
def ect exists inagr oup ofvehicles, itma yor der
a re cal land remedy campaign. However,NHT SA
canno tbeco meinvo lved inindiv idual problems be
tween you, your dealer ,or Mer cedes-Ben z
US A,LLC.
To cont actNHT SA,yo uma ycall theVe hicle
Saf etyHo tlin e to ll-f reeat 1-8 88-327-4 236
(TT Y:1-800-42 4-9153) (insi detheUS A); goto
http: //www .safercar .go v;or write to :Ad minis‐
tr at or ,NHT SA,400 SeventhSt reet,SW .,Wa sh‐
ingt on,DC20590, USA.
Fu rther information onvehicle safetycan be
fo und at:ht tp :/ /www .saf er car .gov Limit
edWa rranty
* NO
TEDama getotheve hicle arising
fr om violation ofthese oper ating instruc‐
tion s. Damag
eto theve hicle canarise from viola‐
tion ofthese oper ating instruction s.
This damag eis no tco veredeit her bythe
Mer cedes-Ben zim plied warrant yor by the
Ne w‑ orUsed- Vehicle Warrant y. #
Followtheins truction sin these oper at‐
ing instruction son proper operation of 28
Gener alno tes

yo
ur vehicle aswellas on possible vehi‐
cle damag e. QR
code forre scue card
The QRcode issecur edinthefuel filler flap and
on theopposit eside ontheB-pillar .In theeve nt
of an acci dent, rescue services canusetheQR
code toquickl yfind theappr opriatere scue card
fo ryo ur vehicle. Thecurrent rescue cardcon‐
ta ins themos tim por tant informa tionab ou tyo ur
ve hicle inacom pact form ,e.g. thero utin gof the
electr iclines.
Fu rther information canbeobt ained athttp: //
www .mercedes-benz .de/qr-code. Data
storage Electr
oniccontr olunit s Ele
ctro nic contr oluni tsareins talled inyour vehi‐
cle. Some ofthese areneces saryfo rth esaf e
oper ation ofyour vehicle, whilesome assistyo u
when drivin g(dr iver assis tance systems). In
addition, your vehicle prov ides comfort and ent
ertainm ent func tions,whic har ealso made
possible byelectr oniccontrol units.
Elect ronic contr oluni tscont ain da ta memor ies
whic hcan temp orarily orper manent lystor e
te ch nica linf orma tionab ou tth eve hicle's operat‐
ing stat e, com ponent loads, maintenance
re qu iremen tsand tech nica leve nts orma lfunc‐
tio ns.
In gener al,th is inf ormatio ndocum entsth est at e
of acom ponent part,amodul e,asy stem orthe
sur round ingssuc has:
R Operatin gst atus ofsystem com ponen ts(e.g.
fi ll le ve ls, batt eryst atus ,tir epr essur e)
R Status messagescon cerningth eve hicle or
its individua lcom ponent s(e.g. number of
wheel revo lution s/speed, longitudin alacc el‐
er ation ,lat eral acc eler ation ,displa yof fas‐
te ned seatbe lts)
R Malfunctio nsorfaults inim por tant system
com ponen ts(e.g. lights, brak es)
R Information oneve nts lead ing tovehicle
damag e R
System react ionsin spec ialdrivin gsit uatio ns
(e. g.airbag deployment,int erve ntio nof sta‐
bilit ycon trol systems)
R Ambien tcon ditions (e.g.temp eratur e,rain
sen sor)
In addition toprov iding theactual control unit
func tion,th is dat aassis tsthemanuf acturerin
de tecting andrectify ingmal functi onsand opti‐
mizi ngvehicle functions. Themajority ofthis
dat ais temp orar yand isonl ypr ocessed inthe
ve hicle itself. Onlya small portion ofthedat ais
st or ed intheeve ntor fault mem ory.
When your vehicle isser viced, tech nica lda ta
fr om theve hicle canberead out byser vice net‐
wo rkem ployees (e.g. workshops, manufactur‐
er s) or third par ties (e.g. breakdo wnservice s).
Ser vice sinc lude repair services, maintenanc e
pr ocesses ,wa rrant yclaim sand qualit yassur ‐
anc emeas ures, forex am ple. Theread out isper‐
fo rm ed via theleg ally prescr ibed portfo rth e
diagnos ticsconnection intheve hicle. The
re spectiv eser vice networklocations orthird
par ties collec t,pr oces sand usethedat a.The y
documen tte ch nica lst atus esoftheve hicle, Gener
alno tes 29

assis
tin findi ng ma lfunctio nsand improv ing
qu alit yand aretransm itted tothemanuf acturer,
if neces sary.Fu rther mor e,themanuf actureris
subject toproduct liability .Fo rth is, themanu‐
fa ctur errequ ires tech nica lda ta from vehicles.
Fa ult mem ories intheve hicle canberese tby a
ser vice outle tas par tof repair ormaint enanc e
wo rk.
Dep endingontheselect edequipment, youcan
im por tdat aint ove hicle convenie nce and info‐
ta inm ent func tionsyo urself .
This includes ,fo rex am ple:
R Mult imed iadata suchas music ,fi lms orpho‐
to sfo rpla yba ckinan integratedmultimedia
sy stem
R Address book datafo ruse inconnection with
an integr ated hands-fr eesystem oran inte‐
grat ednavig ation system
R Entere dna vig ation destinations
R Dat aabout theuse ofInt erne tser vices
This datacan besave dlocall yin theve hicle orit
is locat edon ade vice whichyo uha ve connect ed
to theve hicle (e.g.asmar tphone, USBflash dr
ive or MP3 player). Ifth is dat ais stor ed inthe
ve hicle, youcan deleteitat anytim e.This data
is sen tto third par ties onlyat your requ est,par‐
ticular lywhen youuse onlineser vices inacc ord‐
anc ewit hth ese ttings that youha ve select ed.
Yo ucan stor eor chang econ venie nce settings /
ind ividu aliza tionin theve hicle atanytime.
Depending ontheeq uipment, this inc ludes, for
ex am ple:
R Setting sfo rth eseat andsteer ing wheel posi‐
tion s
R Suspension andclimat econ trol settings
R Cus tomizations suchas interior ligh ting
If yo ur vehicle isaccor dinglyeq uipped ,yo ucan
co nn ect your smar tphon eor ano ther mobile end
de vice totheve hicle. Youcan contro lth is by
means ofthecon trol element sint egr ated inthe
ve hicle. Imagesand audiofrom thesmar tphon e
can beoutput viathemultimedia system. Cer‐
tai ninf orma tionis simu ltane ously trans ferred to
yo ur smar tphon e. De
pen dingon thetype ofintegr ation, this can
inc lude:
R Gener alvehicle data
R Position data
This allowsyouto use selected apps onyour
smar tphon e,suc has navig atio nor musi cpla y‐
bac k.Ther eis no further interaction between the
smar tphone andtheve hicle; inpar ticular ,ve hi‐
cle datais no tdir ectl yaccessible. Whichtype of
fur ther dat apr ocessin goccur sis de term ined by
th epr ov ider ofthespecif icapp used. Whichse t‐
ting syo ucan make,ifan y,depends onthespe‐
cif icapp andtheoper ating system ofyour
smar tphon e. Onlin
eser vices Wi
reless netw orkconnection
If yo ur vehicle hasawir eless networkconn ec‐
tion, itenables datato be exc hang edbetween
yo ur vehicle andadditional systems. Thewire‐
less networkcon nect ionisenabled viatheve hi‐
cle's transmission andrecep tion unitor via con‐
nect edmob ile end device s(e.g .sma rtphones). 30
Gener alno tes