2021 MERCEDES-BENZ C-CLASS CABRIOLET tires

Clim
atecontr ol......................................... 12 0
Ov ervie wof climat econt rolsy stems ..........1 20
Oper ating theclimat econ trol system ......... 120 Dr
ivin gand parking ................................. 124
Dr iving ............ ............ ........................ ........124
DY NA MIC SELE CTswitc h... ............... ..........1 34
Au tomatic transmiss ion.................... .......... 136
Fu nctio nof the4MA TIC.............................. 140
Re fuel ing...... ............................................... 141
Pa rking .......................................................1 43
Dr iving anddriving safetysy stems .............1 50
Ve hicle towing instruct ions .........................1 99 Ins
trument Displa yand on-b oard
co mp uter ...... ............................................200
No teson theins trument displayand on-
boar dcom puter.............................. ............ 200
Ins trument displayove rview ............ ...........2 01
Ov ervie wof butt ons onthesteer ing
wheel .................. ........................................2 02
Oper ating theon- boar dcom puter.............. 202
Ov ervie wof displa yson themultifunc ‐
tion displa y... ..............................................2 03 Head
-upDispl ay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 203 Vo
ice Contr olSy stem .............................. 206
No teson oper ating safety.......................... 206
Ope ratio n........... ................................. .......206
Usi ngtheVo ice Cont rolSy stem effec‐
tiv ely <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>...208
Essenti alvoice com mand s.........................2 08 Multimedi
asy stem .................................. 220
Ov ervie wand oper ation .................. ............ 220
Sy stem settings .............................. ............ 229
Fit &Healt hy<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 240
Na vig ation .......................................... ........242
Te lephon e........................................ ...........2 67
Online andInterne tfunctions ..................... 291
Media ......................................................... 294
Ra dio .......................................................... 306
Sound .........................................................3 13 Maint
enanc eand care...... ....................... 316
ASS YSTPL US service interva ldispla y.........3 16
Engi necompar tment............. ............. .........317 Clean
ingand care.......................................3 23 Br
eakdo wnassi stance ............................ 333
Emer gency <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>.333
Flat tire....... ................................................ 334
Batt ery(v ehi cle) ....... ................................... 341
To w star tin gor towing away <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 346
Ele ctrica lfus es<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 351 Whe
elsand tires <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 354
No teson noise orunusua lhandling char‐
act eristic s...................................................3 54
No teson regular lyinspect ingwheels and
tir es ............................................................ 354
No teson sno wch ains ................................ 355
Ti re pressur e.............................................. 355
Loading theve hicle .................................... 362
Ti re labeling ................................................ 366
Def inition ofterm sfo rtir es and loading ..... 371
Chan gingawheel ........................................ 374
Emerg encysparewh eel............ ..................383 Co
ntents 3

*
NO
TEImpairment oftheoper ating effi‐
cie ncy ofthere stra int systems from
ins talling accessor ypar tsor from repair s
or we lding Air
bags andEmerge ncy Tensi oni ng Device s,
as wellas con trol unit sand sensorsfo rth e
re stra int systems, maybe installed inthefo l‐
lo wing areas ofyour vehicle:
R Door s
R Door pillars
R Doo rsi lls
R Sea ts
R Cockpit
R Instrument cluster
R Cen terconsole
R Lateral roof frame #
Donotins tallacc essor ypar tssuc has
audio systems inthese areas. #
Donotcar ryout repair sor we lding. #
Have afte rm arke tins tallation ofacc es‐
sor ies carried out ataqu alif ied spec ial‐
is two rkshop. Yo
uco uld jeopar dizeth eoper ating safetyof your
ve hicle ifyo uuse parts,tir es and wheel sas well
as acc essor iesreleva nt tosaf etywhic hha ve not
be en approve dby Mer cedes-Ben z.Saf ety-re le‐
va nt systems, e.g.thebr ak esy stem, maymal‐
func tion.Onl yuse Mercedes- BenzGenuineP arts
or par tsof equal qualit y.Onl yuse tires, wheels
and accessor iesthat have been specif ically
appr ovedfo ryo ur vehicle model.
Mer cedes-Ben zGenuineP arts aresubject to
st rict qualit yins pec tions.Eac hpar thas been
spec iallyde veloped, manufactured orselec ted
fo rMer cedes-Benz vehicles andadap tedto
th em. Ther efor e, onl yMer cedes- BenzGenuine‐
Pa rts should beused.
Mor eth an 300,0 00 differe nt Mer cedes-Be nz
Ge nui neP arts areav ailable forMer cedes-Benz
model s.
All author ized Mercedes-B enzCent ersmaint ain
a supply ofMer cedes-B enzGenuineP arts for nece
ssaryser vice andrepair work.In addition,
st ra tegically locatedpar tsdeliv erycent erspr o‐
vide forqu ick and reliable partsser vice .
Alw aysspecify theve hicle identif ication number
(VIN) (/page38 7) when order ing Mer cedes-
Benz GenuineP arts. Oper
ator's Manual
This Oper ator's Manual describesallmodels and
all standar dand optio nal equipme ntavailable for
yo ur vehicle atthetime ofthis Opera tor's Man‐
ua lgoing topress. Countr y-specif icdif fere nces
ar epo ssi ble. No tethat your vehicle mayno tbe
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 agreement foryo 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. 22
Gener alno tes

*
NO
TEDama getotheve hicle duetodriv‐
ing toofast and due toimpact sto the
ve hicle underbody orsuspension compo‐
nent s 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
suspension componen ts
In situation ssuc has these, damag eto the
body ,underbody ,suspension componen ts,
wheels ortires ma yno tbe visible. Compo‐
nen tsdamag edinthis wa ycan unexpec tedly
fa ilor ,in thecase ofan acciden t,ma yno lon‐
ge rabso rbthere sulting forc eas intended.
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 tsof 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 ely, while paying
att ent ion toroad and traffic condi tions,
and cont actaqu alif ied spec ialistwo rk‐
shop. Dec
laration ofconf ormity forwi reless vehi‐
cle comp onent s
US A:"Radio based 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 oper ation.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 :"This vehicle contains license-e xemp t
tr ans mitter( s)/r ece iver( s)that com plywit hInno ‐
va tio n,Scie nceand Econo micDe velopmen tCan‐
ada ’sRSS (s).Operatio nis subj ectto thefo llo w‐
ing twocon dition s:(1) These device sma yno t
cause interfere nce, and(2)The sedevice smu st
acc eptan yint erfere nce, including interfere nce
th at 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 Inte rface) :
th is de vice complies withPa rt18 oftheFCC
Ru les."
The name andaddr essofthepar tyresponsible
is:
peik eracus ticGmbH
Max-Planc k-St r.28-32
61 38 1Fr iedr ichsdor f
Ger man y Gener
alno tes 25

Br
eak ing-i nno tes To
preser vetheengine during thefirs t
10 00 mile s(1 500 km):
R Drive at varying road spee dsand engine
spee ds.
R Donotdr ive at spee dsgrea terth an 85 mph
(1 40 km/ h).
R Drive th eve hicle indrive pr ogr am A
or ;.
R Shif tto thene xt highes tge ar attheve ry lat‐
es twhen theneedle reac hes thelas tth ird
bef oreth ere dar ea intheta ch ome ter.
R Donotshi ftdo wn age ar man uallyin order to
br ak e.
R Avoid overstrai ning theve hicle, e.g.driving at
full thro ttle .
R Donotde pres sth eacceler ator pedal past
th epr essur epoint (kickdo wn).
R Onlyincr ease theengine speedgraduallyand
accelera tetheve hicle tofull spee daf te r
10 00 mile s(1 500 km). This
also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced.
Please alsoobser vethefo llo wing breakin g-in
no tes:
R Incer tain drivin gand drivin gsaf etysy stems,
th esensor sadjus taut omaticall ywhile acer‐
ta in dis tance isbe ing driven afte rth eve hicle
has been delivered orafte rre pair s.Fu llsy s‐
te m effectiv enes sis no tre ac hed untilth e
end ofthis teac h-in proce ss.
R Brak epads ,br ak edisc sand tires that are
eit her newor have been replaced onlyac h‐
ie ve optimum braking effect and grip afte r
se veralhundr edkilom eter sof driving. Com‐
pensat efo rth ere duced braking effect by
appl ying grea terfo rc eto thebr ak epedal. No
teson optimiz edacceler ation If
all necess aryre qu iremen tsand activation con‐
dition sar efulf illed, thebes tpossible accelera‐
tion canbeachie vedfrom ast ands till.
Do notuse theop timiz edaccelera tiononpublic
ro ads. Individ ualwheels couldspin andyou cou
ldlos econtr olof theve hicle. Thereis an
incr eased risk ofskidding and/oraccident.
Be sureto obser vethesaf etyno tesand informa‐
tion onESP ®
(/ page15 2). Pull
ingaway wit hop timi zed accel eration &
WARNIN GRisk ofskid ding and having
an acci dent from whe elsspi nning
Whe nyo uuse optim izedacc eler ation,ind i‐
vidual wheelsco uld spin andyouco uld lose
co ntro lof theve hicle.
If ESP ®
is deactiv ated, ther eis arisk ofskid‐
ding andaccident. #
Mak esur eth at no per son sor obs tacles
ar ein theclose vicinityofyour vehicle. Re
quirement s:
R The vehicle hasbeen brok en in
(/ page12 8).
R Theve hicle andtires arein good condition.
R Youar eon ahigh -grip ro adw ay. 12
8
Driving and parking

No
teson hydropl aning
Hyd roplaning cantake place onceacer tain
amount ofwa terhas accumu lated on thero ad
sur face.
Obs erve thefo llo wing notesdur ing heavyprecip‐
it ation orinconditions inwhic hhy droplaning
ma yocc ur:
R Reduce speed
R Avoid tireru ts
R Avoid sudden steer ing movements
R Brak ecar eful ly
% Also obser vetheno teson regular lych ecking
wheels andtires (/ page35 4).
No teson driving through wateron the road
sur face
Wa terwhi chhas entered intoth eve hicle can
damag eth eengine, electricsand transmission .
Wa tercan alsoent ertheair intakeof theengine
and cause engine damage. Obser
vethefo llo wing ifyo umus tdr ive th ro ugh
wa ter:
R The water,when calm,ma yonl yre ac hth e
lo we redg eof theve hicle body.
R Drive at amaximum speedof6mp h
(1 0 km/ h);watercan other wise enterthe
ve hicle interior orengine compartment .
R Vehicles trave ling infront ,or onc omin gve hi‐
cles, cancreat ewav eswhic hma yex ceed the
maximu mper missi bledep thofthewa ter.
The braking effect of thebr ak es isreduced afte r
fo rd ing. Brak ecar efull ywhile paying attent ion to
th etraf fic condi tions untilbr aki ng powe rhas
been fullyrestor ed. ECO
star t/s topfunc tion Ope
ratio nof the ECOstar t/s topfunc tion
% The ECOstar t/ stop funct ionisno tav ailable
in all drive pr og rams, depe nding onthe
engine. Observethest atus displa yin the
multifu nctiondisplay fo rth is. The
engin eis switc hedoffaut omat icallyin the
fo llo wing situat ionsifall vehicle conditions for
an aut omat iceng inestop areme t:
R Youbr ak eth eve hicle toast ands tillin trans ‐
miss ionposit ion005Bor005C.
R Vehicl eswith a48 Von-b oard electrical
sy stem: Youdepr essthebr ak epedal when
tra veling atalow speed.
If th esy stem has detected one ofthefo llo wing
situat ions,th eengine willnotst op:
R Youstop atast op sign andther eis no vehi‐
cle infront ofyou.
R The vehicle that stopped infront ofyou
st ar ts up again.
R Youman euver,tur nth esteer ing wheel
shar plyor eng agere ve rsege ar.
% Ifth esy stem detects anintellige nt stop
inhibit or,fo rex am ple, ast op sign, theengine
will notst op.
If yo uact ivat eth eHOLD function oreng age
th epar kposition 005D,theengine canbe
switc hedoffin spit eof an intellig entstop
inhibit or. 13
2
Driving and parking

th
etraction ofyour vehicle whene vera dr iven
whee lspins duetoinsuf ficie nttracti on.
If yo ufa ilto adap tyo ur drivin gst yle, 4MA TICcan
neit her reduce therisk ofan accident norover‐
ri de thelaws ofphysics. 4MA TICcannotta ke
acc oun tof road, weather and traf fic condi tions.
4MA TICisonly anaid. Youar ere sponsible espe‐
cially formaint ainingasaf edis tance from the
ve hicle infront, forve hicle speed, forbr aking in
good timeandforst ay ing inlane.
% Inwint ryroad con dition s,themaximum
ef fect of 4MA TICcan beachie vedonl yif yo u
use wint ertires (M+ Stir es), withsn ow
ch ains ifnec essar y. Re
fueli ng Re
fueli ngtheve hicl e &
WARNIN GRisk offire or explosion from
fuel
Fu els arehighly flammab le. #
Fire,open flames ,smo kingand creat ion
of spar ksmus tbe avo ided. #
Swit choffth eignition and,ifav ailable,
th est atio naryheat er,bef oreand while
re fuel ingtheve hicle. &
WARNIN GRisk ofinju ryfrom fuels
Fu els arepoisonous andhazar dous toyour
healt h. #
Donotsw allo wfuel orletit co me into
co ntact withsk in, eyes orclo thing. #
Donotinhale fuelvapor . #
Keep childr enaway from fuel. #
Keep door sand windo wsclos edduring
th ere fuel ingprocess.
If yo uor other people comeintocont actwith
fuel, obser vethefo llo wing: #
Imm ediat elyrinse fuelof fyo ur skin wit h
soap andwater. #
Iffuel comes intocont actwithyo ur
ey es, immediat elyrinse them thor‐ oughl
ywit hclean water.Seek medical
att entio nimm ediately . #
Ifyo usw allo wfuel, seek medicalatten‐
tio nimm ediat ely. Do notind uce vomit‐
ing. #
Cha ngeimmedi ately out ofclo thing that
has com eint ocon tact with fuel . &
WARNIN GRisk offire and explosion due
to electr ostatic charge
Ele ctrostatic charge can ignitefuel vapor . #
Beforeyo uopen thefuel filler cap or
ta ke hold ofthepum pnoz zle, touc hth e
me tallic vehicle body. #
Toavo idcreatin gano ther electr ostatic
ch arge ,do notget intoth eve hicle again
dur ing there fuel ingprocess. *
NO
TEDama gecau sed bythewr ong fuel Ve
hicles withaga soline engine: Dr
iving andparking 14
1

No
teson using apo we rwa sher &
WARNIN GRisk ofan acci dent when
us ing powe rwa sher swit hro und -spr ay
nozzl es
The waterje tcan caus eex tern all yin visi ble
damag e.
Com ponentsdamag edinthis wa yma yune x‐
pec tedly fail. #
Donotuse apo we rwa sher withro und-
spra yno zzles. #
Have damag edtires orchassis parts
re placed immediat ely. To
avo iddamag eto your vehicle, observethefo l‐
lo wing when usingapo we rwa sher :
R The Smar tKey isat amin imum distance of
10 ft(3 m) away from theve hicle. Other wise
th etrunk lidcould openunintentionally .
R Maint ainadis tance ofat leas t11 .8 in
(30 cm) totheve hicle.
R Vehicl eswith decorativ efo il: par tsof your
ve hicle areco veredwit hadecor ativefo il. Maint
ainadis tance ofat leas t27 .6 in
(70 cm) between thefo il-c ove redpar tsof the
ve hicle andthenoz zleofthepo we rwa sher .
Mo vethepo we rwa sher nozzlearound whilst
cleaning. Thewaterte mp eratur eof the
po we rwa sher mustno tex ceed 140°F
(60°C ).
R Obse rveth einf ormation onthecor rect dis‐
tan ceintheeq uipment manufacturer'soper‐
ating instruction s.
R Donotdir ect thenoz zleofthepo we rwa sher
dir ectl yat sensitiv epar ts,e.g. tires, softto p,
wind deflect ornet,ga ps, elect rical com po‐
nents, batter ies, light sources and ventil ation
sl its. Wa
shing theve hicl eby hand *
NO
TEEngi nedama gedue towa ter
ing ress #
Take car eno tto point thewa terje t
dir ectly towa rdsth eair inle tgr ille belo w
th ehood. Obser
vetheleg alrequ iremen ts,e.g. inanumb er
of coun tries, washing byhand isonl yper mitt ed
in specially designatedwash bays. #
Use amild cleaning agent, e.g.carsham poo. #
Washtheve hicle withluk ewa rmwaterusi ng
a sof tcar spong e.When doingso,donot
ex pose theve hicle todir ect sunlight . #
Carefully hosetheve hicle offwit hwa terand
dr yusi ng ach amois .
% Obse rveth eno teson thecar eof vehicle
par ts(/ page329). No
teson paint work/ma tte finish paint work
car e Obse
rveth eno teson cleaning andcareto avo id
damagin gth epaintw ork.
Pa int
R Insect remains: soakwithinsect remo verand
ri nse offth etreat edareas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse off
af te rw ards. Main
tenance andcare32
5

Se
tting upthewa rning triang le #
Foldside reflect ors1 upw ards toform atri‐
ang leand attachat theto pusing upper
pr ess-s tud2. #
Foldlegs 3down and outtotheside. Fi
rs t-aid kit(sof t-si ded) overview Fir
st-ai dkit (softsided) 1isin thetrunk inthe
lef t-hand orright-h andstor ag ene t,depending
on themodel. Flat
tire No
tesin theeve ntofaflat tire &
WARNIN GRisk ofacci dent dueto aflat
tir e
A flat tirese verely affects thedr iving charac‐
te rist ics aswellas thesteer ing and braking
of theve hicle.
Ti re swith outrun-flat charact eristics : #
Donotdr ive wit haflat tire. #
Chan getheflat tireimm ediat elywit han
emer gency sparewheel orspar ewheel.
Alt ernat ivel y, consu ltaqu alif ied spe‐
cialis two rkshop.
Ti re swith run-flat charact eristics : #
Obse rveth einf ormation andwarning
no teson MOExt ended tires (run-f lat
tir e). 33
4
Breakdo wnassis tance