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

#
Select Move Highlighte dStati on. #
Select amemo ryprese t.
Dele ting station s: #
Highl ightapr ese tentr yand navig ateto the
lef t. #
Selec tDelet eHighlig htedSt ation. #
Selec tYes. Ac
tiv atin g/deac tivatin gra dio text Multimedia
system:
4 Radio 5
Z Option s
5 Display RadioTextInformation #
Activate0073 ordeacti vate 0053 thefunc tion. Sat
ellit era dio In
fo rm ation onthesat ellit era dio
SIRI USXM®
sat ellite radio offers mor eth an 175
digit al-quality radio chann elsprov iding 100%
commer cial-free musi c,spor ts,news and enter‐
ta inm ent,fo rex am ple. SIRIUS XMsatellit era dio
em ploysaflee tof high-per form anc esat ellit esto br
oadcas tar ound thecloc kth ro ughout theUS A
and Canada. Thesatellit era dio progr am isavail‐
able fora mont hlyfe e. Inf ormation aboutthis
can beobt ained from aSir ius XM®
Ser vice Cen‐
te rand athttps://www .siriusxm.com (USA)or
https://www .siriusxm.ca (Canada ).
% Sirius ,XM and allrelat ed mar ksand logos
ar etrademar ksofSir ius XM Radio Inc.and
its subsidiar ies.Allother mar ks,ch ann el
nam esand logos areth epr oper tyof their
re spectiv eow ner s.All rights reser ved.
Sat ellit era dio restriction s
Sat ellit era dio mode maybe temp orarily una vail‐
able orinterru pte dfo ra va riet yof reason s.
Thes einc lude environ men talor topog raphical
con dition sbe yond thecon trol of Mer cedes- Benz
US A,LLC. Thus, operation atcer tain locat ions
ma yno tbe possible .
Re gis tering sat ellit era dio
Re quirement s:
R Satellit era dio equipment
R Regis tration withasat ellit era dio prov ider R
Ifre gis tration isno tincluded whenpurchas‐
ing thesy stem, your credit cardde tails will
be requ ired toact ivat eyo ur acc oun t.
Mult imed iasystem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
Z Option s #
Select ServiceInformation.
The service information screen appear s
sho wing thera dio IDand thecur rent sub‐
scr iptio nstatus . #
Establish ate lephon econ nection . #
Followtheser vice staf f's instruct ions.
The activatio npr oce ssma yta ke up toten
minut es.
% Youcan also have thesat ellit eser vice acti‐
va tedonline. Todo so, please visithttps:/ /
www .siriusxm. com(USA)orhtt ps:/ /
www .siriusxm. ca(Canada).
Switc hingonsat ellit era dio
Mu ltimed iasystem:
4 Radio 5
Þ Radio Source #
Select SiriusXM Radio. Multimedia
system 309

Ov
ervie wof thesat ellit era dio 1
Activefreq uency band
2 Logoor coverpictur efo rth esong (ifavaila‐
ble)
3 Categor y
4 Chan nelnam e
5 Artis t,trac kand album
6 SiriusXM RadioChannels 7
Pres ets
8 Radio Source
9 Soun d
A Playbac kCon trol
B Options Select
ingasat ellit era dio category
Mu ltimed iasystem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio
5 00D3 SiriusXM RadioChannels 5
Category #
Select acat egor y. 31
0
Multimedia system

Selec
tingasat ellit era dio channe l
Mul timedi asy stem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio #
Navig ateup ordown.
Sa ving ordele ting asat ellite ra dio channe l
Mul timedi asy stem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
ß Preset s #
Select Store Current Station inthe Preset s.
Mo ving ach anne l #
Select Options. #
Select MoveHighlightedStation. #
Select amemor ypr ese t.
De leting ach anne l #
Select Options. #
Select Delete HighlightedStation . #
Select amemor ypr ese t. Di
spla ying EPGinformation forthe current
ch anne l
Mul timedi asy stem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
Z Option s #
Select EPGInformation aboutCurrent Chan-
nel.
Se tting parental controlforra dio
Mu ltimed iasystem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
Z Option s
5 Parent alContr ol #
Activateth efunc tion 0073. #
Determ ine afo ur -di git charact erseq uenc e
and selec t¡.
All chann elswithadult content are lock ed.
Un loc king ach anne l #
Enterthefo ur -di git charact erseq uenc eand
selec t¡.
All chann elswithadult content are unlocked. Music
andspor taler tsfunction
This function enables youto prog ram an alertfor
yo ur favo rite artis ts,tr ac ks orspor tingevents.
Mu sic aler ts can besave dwhils ta tra ck isbeing
pla yedand spor taler tscan besave ddur ing a
liv ega me. Youcan also spec ifyspor taler tsvia
th emenu option .The system then con tinuousl y
sear ches thro ugh allthech ann els. Ifamat chis
fo und withast or ed aler t,yo uwill beinformed .
Se tting music and sportaler ts
Mul timedi asy stem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
Z Option s
5 Alert forArtist, Son g& Sport ingEven t
Se tting amusic alert #
Select AddNew Alert.
or #
Select Manage Artist &Son gAlert s. #
Select ¥Option s.
The follo wing option sar eav ailable:
R Mark ThisEntry
R Unmar kThis Entry Mult
imed iasystem 31
1

R
Mark AllEnt ries
R Unmark AllEnt ries
R Delete ThisEntry
R Delete AllEnt ries #
Select anoption. #
Activate Artist &Song Alerts 0073.
The alertis setfo rth ecur rent artis tor trac k.
If amatc his found ,a pr om ptappear sask ing
whe ther youwish tochang eto thest atio n.
Se tting aspor taler t #
Select Add New Alert.
or #
Select Man ageSports Ale rts. #
Select Select New Alerts.
or #
Select EditAle rts. #
Select ate am from aleague. #
Activate Spo rts Ale rts 0073. Inf
orma tion onSm artFa vo rite sand Tune
St art
St atio nsinthest atio npr ese tscan beadded as
Sm artFa vorite s. Smar tFa vorite sst atio nsare
aut omat icallysa ve dto temp orar yst or ag ein the
bac kground .If yo uch ang eto aSm artFa vorite s
st atio n,youcan repla y,pause oractiv elyskip
fo rw ardor bac kto broadcas tswhic hyo uha ve
missed .If Tu ne Startis act ivat ed and youch ang e
to ano ther Smar tFa vorite sst atio n,themusic
tra ck cur rentl ypl ay ing onthest atio nis aut omat ‐
icall yre star tedfrom thebeginnin gof thetra ck.
Ad ding ach anne lto Smar tFa vo rite s
Multimedia system:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio #
Select theactiv efreq uency band. #
Highlight anent ry. #
Select ¥. #
Select Add Highlighte dCh anne lto Smar t
Favo rites. Ac
tiv atin g/deac tivatin gTu neS tart
Multimedia system:
4 Radio 5
Z Option s5
TuneSt art #
Activate0073 ordeacti vate 0053 thefunc tion.
Contr olling playbac k
Multimedia system:
4 Radio 5
Y Playback Control
Yo ucan pause thepla ybac kof thecur rent sta‐
tio nor skip forw ardor bac kwardin thetimelin e.
This leavesliv emode toacc ess theint ernal tem‐
por aryst or ag e. #
Tofast forw ard/r ewind: turnth econ troller
count er-cloc kwise orcloc kwise/swipe leftor
ri ght ontheto uc hpad. #
Tojum pto thepr ev ious/ne xtsong: press
th econ troller leftor right/swipe leftor right
on theto uc hpad. #
Topause playbac k:sel ect 00CF. #
Toretur nto livemod e:navig ateto theend
of thetimeline. 31
2
Multimedia system

Disp
laying satellit era dio service informa tion
Multime diasystem:
4 Radio 5
Þ Radio Source
5 SiriusXM Radio5
Z Option s #
Select ServiceInformation. Sound
To
ne settings Inf
ormat ionabout thesound system
The soun dsy stem has atot alout put of100W
and iseq uippe dwit hfive speak ers. Itis available
fo rall functions inthera dio and media modes.
% The callcan also bemade from other audi o
sour ces. Replace Media with,forex am ple,
Ra dio inthemenu path.
Calling upthesound menu
Multi media system:
4 Media 5
à Sound
The follo wing functionsar eav ailable:
R Equal izer
R Balan ceand Fade r R
Automat icVolum eAdj ustmen t
R Other Soun dSet tings #
Select asoun dmen u.
Ad jus tingtreb le,mid- rang eand bass set‐
tings
Multimedia system:
4 Media 5
à Sound 5
Equalizer #
Select Treble, MidRange orBass. #
Chang eth ese ttings.
Ac tiv atin g/deac tivatin gaut omati cvo lum e
adj ustm ent
Multime diasystem:
4 Media 5
à Sound
5 Autom aticVolume Adjustmen t
Au tomatic volume adjustment com pens ates for
dif fering volumes whenchang ingbetween audio
sour ces. #
Activate0073 ordeacti vate 0053 thefunc tion. Ad
jus tingthe balanc e/fader
Mu ltimed iasystem:
4 Media 5
à Sound
5 Balance andFader #
Adjus tth ebalance andfader . #
Toexitth emenu :pr ess the0038 button. Bur
mes ter®
sur round soun dsy stem Inf
orma tion abou tth eBu rm ester®
sur round
soun dsy stem
The Burmes ter®
sur round soun dsy stem has a
to ta loutput of590 Wand iseq uipped with13
speak ers. Itis available forall functions inthe
ra dio and media modes.
% The callcan also bemade from other audi o
sour ces. Replace Media with,forex am ple,
Ra dio inthemenu path. Multimedia
system 31
3

Callin
gup thesound menuinthe
Bu rm ester®
sur round soun dsy stem
Multi media system:
4 Media 5
à Sound
The follo wing functionsar eav ailable:
R Equal izer
R Balan ceand Fade r
R Automat icVolum eAdj ustmen t
R Surroun dSoun d
R Soun dFoc us
R Other Soun dSet tings #
Select afun ction .
Ad jus tingthe treb le,mid andbassse ttin gs
on the Burmes ter®
sur round soun dsy stem
Multi media system:
4 Media 5
à Sound 5
Equalizer #
Select Treble, MidRange orBass. #
Setth edesir edvalues. Ac
tiv atin gor deac tivatin gvo lum eadj ust‐
ment intheBu rm ester®
sur round soun dsy s‐
te m
Multimedia system:
4 Media 5
à Sound
5 Autom aticVolume Adjustmen t
Au tomatic volume adjustment com pens ates for
dif fering volumes whenchang ingbetween audio
sour ces. #
Activate0073 ordeacti vate 0053 thefunc tion.
Ad jus tingthe balanc e/fader inthe
Bur mes ter®
sur round soun dsy stem
Multi media system:
4 Media 5
à Sound
5 Balance andFader #
Adjus tth ebalance andfader . #
Toexitth emenu :pr ess the0038 button. Switc
hingsurround soun don oroffin the
Bur mes ter®
sur round soun dsy stem
Multi media system:
4 Media 5
à Sound
5 Surroun dSound #
Activate0073 ordeacti vate 0053 thefunc tion.
Ad jus tingthe sound focus intheBu rm ester®
sur round soun dsy stem
Multi media system:
4 Media 5
à Sound 5
Sound Focus #
Adjus tth esound focus . Ad
vanced sound system Inf
orma tion abou tth eAd vanced sound sys‐
te m
The Advanced soundsystem has atot alout put
of 22 5W and iseq uipped withnin espeak ers. It
is available forall functions inthera dio and
media modes. 31
4
Multimedia system

Callin
gup thesound menuintheAd vanced
sound system
Multi media system:
4 Media 5
à Sound
The follo wing functionsar eav ailable:
R Equal izer
R Balan ceand Fade r
R Automat icVolum eAdj ustmen t #
Select afun ction .
Ad jus tingtreb le,mid- rang eand bass set‐
tings intheAd vanced sound system
Multi media system:
4 Media 5
à Sound 5
Equalizer #
Select Treble, MidRange orBass. #
Setth edesir edvalues. Switc
hingvolum eadj ustm ent inthe
Ad vanced sound system on/of f
Multi media system:
4 Media 5
à Sound
5 Autom aticVolume Adjustmen t
Au tomatic volume adjustment com pens ates for
dif fering volumes whenchang ingbetween audio
sour ces. #
Activate0073 ordeacti vate 0053 thefunc tion.
Se tting thebala nce/f ader intheAd vanced
sound system
Multi media system:
4 Media 5
à Sound
5 Balance andFader #
Adjus tth ebalance andfader . Multimedia
system 31
5

ASS
YSTPL US service interva ldisp lay Fu
nction oftheASS YSTPL US service interva l
displ ay The
ASSYSTPL US service interva ldispla yon the
Ins trument Displaypr ov ides informatio non the
re maini ngtime ordis tance before thene xt
ser vice duedate.
Yo ucan hide this ser vice displa yusing thebac k
butt ononthelef t-hand sideofthesteer ing
wheel.
Depen dingonhowtheve hicle isused, the
ASS YSTPL US service interva ldispla yma y
shor tenth eser vice interva l,e.g. inthefo llo wing
cases :
R Mainl yshor t-dis tance drivi ng
R Whe nth eengine isoftenleft idling forlong
per iods
R Intheeve ntoffreq uent col dstar tphase s
Mer cedes-Ben zre comme ndsavoiding such
oper ating condit ions.
Yo ucan obtain informat ionconcernin gth eser v‐
icing ofyour vehicle from aqu alif ied spec ialist wo
rkshop, e.g.anaut hor ized Mercedes-Benz
Cent er. Displa
yingtheser vice dueda te On-boar
dcom puter:
4 Service 5
ASS YST PLUS
The next ser vice duedateis displa yed. #
Toexitth edisp lay: press thebac kbutt on
on thelef t-hand sideofthesteer ing wheel.
Bear inmind thefo llo wing relat ed topic:
R Oper ating theon- board computer
(/ page202). Inf
ormat iononregular maintenance work *
NO
TEPrema turewe arthro ugh failur eto
obser veser vice duedates Maint
enance workwhic his no tcar ried out at
th eright time orincom pletely ca nlead to
inc reased wearand damag eto theve hicle. #
Adher eto thepr escr ibed service inter‐
va ls. #
Alw aysha ve thepr escr ibed maint e‐
nanc ewo rkcar ried out ataqu alif ied
spec ialistwo rkshop. Special
service requ irement s The
prescr ibed service interva lis based onnor ‐
mal opera tionoftheve hicle. Maintenance work
will needto be per form ed mor eof tenif th eve hi‐
cle isoper ated under arduous conditions or
incr eased loads.
The ASSYSTPL US service interva ldispla yis onl y
an aid. Thedriver oftheve hicle bearsre sponsi‐
bility asrega rdsto whe ther maint enanc ewo rk
nee dstobe per form ed mor eof tenth an spec i‐
fi ed based ontheactual operating conditions
and/or loads.
Ex am ples ofarduous operating conditions :
R regular citydriving withfreq uent intermedi‐
at estops
R mainly short-distance drivi ng 31
6
Maint enance andcare

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(/ page31 6). Eng
inecom partment Ope
ningand clos ing the hood &
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 care 317

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. 31
8
Maint enance andcare