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

#
Using thelug wrenc h,loosen thewheel bolts
on thewheel youwish tochang eby about
on efull turn.Do notuns crew thebolts com‐
ple tely. Po
sition ofjac ksuppor tpoints
Mer cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yfa ilto rec‐
ogni zedangers. &
WARNIN GRisk ofinju ryfrom incor rect
pos itioning ofthejac k
If yo udo notposi tionth ejac kcor rectly at
th eappr opriatejac king point oftheve hicle,
th ejac kcould tipwithth eve hicle raised. #
Onlyposit ionthejac kat theappr opri‐
at ejac king point oftheve hicle. The
base ofthejac kmus tbe position ed ve
rticall yunder thejac king point ofthe
ve hicle. *
NO
TEVehicle damag efrom thejac k If
yo udo notposi tionth ejac kcor rectl yat
th eappr opriatejac ksuppor tpoint ofthe
ve hicle, thejac kcould tipove rwit hth eve hi‐
cle raised. #
The jackis design edexclu sively for
jac king uptheve hicle atthejac ksup‐
por tpoints . Wheels
andtires 41
5

#
Position jack2 atjac ksuppor tpoint 1. #
Turn crank 3cloc kwiseunti ljac k2 sits
com plet elyon jacksuppor tpoint 1and the
base ofthejac klies evenlyon thegr ound. #
Turn crank 3unti lth etir eis raised amaxi‐
mum of1.2 in (3 cm) from thegr ound. #
Loosen andremo vethewheel (/page41 6). Re
mo ving awh eel Re
quirement s:
R The vehicle israised (/page41 4).
Me rcedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yno tre cog‐
nize dangers.
Whe nch ang ingawheel, avoid applying anyfo rc e
to thebr ak ediscs, sincethis could impair the
le ve lof com fort when brakin g.
* NO
TEDama getothre adin gfrom dirton
wheel bolts #
Donotplace wheel boltsin san dor on
a dir tysur face. #
Unscr ew theupper mostwheel boltcom‐
ple tely. #
Screw align mentbolt 1instead ofthe
wheel boltintoth eth re adin g. #
Unscr ew there maini ngwhee lbolts com‐
ple tely. #
Remo vethewheel. #
Installth ene wwheel (/page41 6). Mo
untin gane wwh eel Re
quirement s:
R The wheel isremo ved(/ page41 6). 41
6
Wheels andtires

Mer
cede s-AMG vehicl es:obse rveth eno tesin
th eSupplement .Ot her wise, youma yno tre cog‐
nize dangers. &
WARNIN GRisk ofacci dent from losing a
whe el
Oil ed, grea sed ordamag edwhe elbol t/whe el
nut thre ads orwheel hub/wheel mounting
bolt thre ads can caus eth ewheel bolts/
wheel nutstocome loose.
As are sult, youco uld lose awheel whiledriv‐
ing . #
Neveroil orgrease theth re ads. #
Intheeve ntofdamag eto theth re ads,
con tact aqu alif ied spec ialistwo rkshop
immediat ely. #
Have thedamag edwheel boltsordam‐
ag ed hub thre ads replaced. #
Donotcon tinue driving. #
Obser vetheno teson thech oice oftires
(/ page409). Fo
rtir es wit haspecif ieddirection ofrotatio n,an
ar ro w on theside wallof thetir eindicat esthe
cor rect dire ction ofrotatio n.Ob serveth edir ec‐
tion ofrotatio nwh en installing. #
Slide thewheel tobe mount edont oth e
align mentbolt andpush iton . &
WARNIN GRisk ofinju ryfrom tight ening
whee lbol tsand nuts
If yo utig hten thewheel boltsorwheel nuts
when theve hicle israised, thejac kcould tip. #
Onlytight enwheel boltsorwheel nuts
when theve hicle ison thegr ound. #
Besureto obser vetheins truction sand
saf etyno teson "Cha nging awheel"
(/ page409). #
Forsaf etyre ason s,on lyuse wheel bolts
whic hha ve been approvedby Mer cedes-
Benz andforth ewheel inqu estion . *
NO
TEDama getopaintw orkof thewheel
ri m when screwing onthefirs twh eelbo lt If
th ewheel hastoomuc hpla ywhen screw‐
ing inthefirs twh eelbo lt, thewheel rim pai nt
can bedama ged. #
Press thewheel firm lyag ains tth e
wheel hubwhen screwing onthefirs t
wheel bolt. #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat eduntil they are
fi ng er-tig ht. #
Unscr ew thealignment bolt. #
Tight enthelas twheel boltuntil itis fing er-
tig ht. #
Lowe rth eve hicle (/page41 7). Lo
we ring theve hicl eaf te ra wh eelch ang e Re
quirement s:
R The newwheel hasbeen installed
(/ page41 6). Whee
lsand tires 41
7

#
Tolowe rthe vehicl e:tur nth ecr ank ofthe
jac kcou nter-clo ckwise untilth eve hicle is
once again standi ngfirm lyon thegr ound. #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 with
a max imum of59 lb-ft(80 Nm). #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 to
th especif iedtight ening torq ue of96 lb-ft
(1 30 Nm) . &
WARNIN GRisk ofinju rythro ugh incor‐
re ct tigh tening torq ue
Th ewh eelscou ldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed tighteningto rq ue. #
Makesur eth ewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue. #
Ifyo uar eno tsur e,do notmo vethe
ve hicle. Consult aqu alif ied spec ialist
wo rkshop andhave thetight ening tor‐
qu ech eckedimmediat ely. #
Chec kth etir epr essur eof thene wlymoun‐
te dwheel andadjus taccor dingly. #
Vehicl eswith tirepr ess urelos swa rning
sy stem: Restar tth etir epr essur eloss warn‐
ing system (/ page396).
Ex cep tion: thene wwheel isan emer gency
spa rewheel. #
Vehicl eswith atir epr ess uremonit oring
sy stem: Restar tth etir epr essur emonit oring
sy stem (/ page395).
Ex cep tion: thene wwheel isan emer gency
spa rewheel.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(/ page390) Emer
gency spar ewheel No
teson the emer gency spar ewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. Mount‐
ing anemer gency sparewheel/ sparewheel
ma yse verely im pair thedr iving charact eris‐
tic s.
To preve nthazardous situa tions: 41
8
Wheels andtires

#
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. #
Nevermount moreth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
>Ha vetheemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐
shop. Thenewwheel mustha ve the
cor rect dimensi ons. Ch
eckth etir epr essur eof theemer gency spare
wheel installed. Correct thepr essur eas neces ‐
sar y.
The maximum permissible speedwithan emer‐
ge ncy sparewheel installed is50 mph
(80 km/ h).
Do notins tallth eemer gency sparewheel with
sn ow chains . Re
place theemer gency sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess urelos swa rn‐
ing system: Ifan emer gency sparewheel is
ins talled thetir epr essur eloss warning sys‐
te m canno tfunction reliabl y.Onl yre star tth e
sy stem again when theemer gency spare
wheel hasbeen replaced withane wwheel.
Ve hicl eswith atir epr ess uremonit oring
sy stem: Ifan emer gency sparewheel is
ins talled thetir epr essur emonit oring system
cann otfunction reliabl y.Fo ra fe w min utes
af te ran emer gency sparewheel isins talled,
th esy stem mayst ill displa yth etir epr essur e
of there mo vedwheel. Onlyre star tth esy s‐
te m again when theemer gency sparewheel
has been replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page390)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page39 7)
R Tire pressur eta ble (/ page39 1) Re
mo ving the eme rgency sparewheel The
eme rgency sparewheel issecur edinthe
emer gency sparewheel baginthetrunk . #
Obser vetheinf ormation onmount ingtires
(/ page409). #
Open thetrunk . #
Detach thesecur ingstra ps. #
Unhook there tainin gspr ing hook sof the
secur ingstra ps from thebr ac kets. #
Remo vetheemer gency sparewheel bagwith
th eemer gency sparewheel. #
Open theemer gency sparewheel bagand
re mo vetheemer gency sparewheel. Wheels
andtires 41
9

No
teson tech nical data
Mer cedes- AMGvehicl es:besur eto obser ve
th eno tesin theSupplement .Ot her wise, you
ma yfa ilto recogni zedangers.
The data stat ed onlyapplies tovehicles with
st andar deq uipme nt.Yo ucan obtain further
inf ormation from anaut hor ized Mercedes- Benz
Cent er. Ve
hicl eele ctroni cs Tw
o-w ayradio s No
teson installing two-w ayradio s &
WARNIN GRisk ofacci dent dueto
im proper workon two-w ayradios
The elect romagne ticradiation from two-w ay
ra dios caninterfere wit hth eon- boar delec‐
tr onics ifRF transmit ters areman ipulat edor
re trof itt ed inco rrect ly.
This could jeopar dizetheoper ating safetyof
th eve hicle. #
Yousho uld have all workon electr ical
and electr oniccomponent scar ried out
at aqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofacci dent from incor ‐
re ct ope ratio nof two-w ayradios
If yo uoper atetw o-wa yra dios incor rectl yin
th eve hicle, theelectr omagne ticradiation
could interfere wit hth eon- boar delectr onics,
e.g. :
R ifth etw o-w ayradio isno tcon nectedto
an exterior ant enna
R ifth eex terior ant enna isno tcor rectly
mou nted orisno tof low reflect ion
This could jeopar diestheoper ating safetyof
th eve hicle. #
Have thelow- reflect ion exterior
ant enna installed ataqu alif ied spec ial‐
is two rkshop. #
When operating two-w ayradios inthe
ve hicle, alwaysconn ectthem tothe
lo w- reflect ion exterior ant enna. *
NO
TEInva lidation oftheoper ating per‐
mit due tofailur eto com plywith the
ins truct ions forins tallation anduse The
oper atingper mit maybe inva lidat edif
th eins truction sfo rins tallation anduseof
tw o-w ayradios areno tobser ved. #
Onlyuse appr oved freq uency bands. #
Obser vethemaximum permissible out‐
put powe rin these freq uency bands. #
Onlyuse appr oved ant enn aposition s. 420
Tech nica lda ta

1
Rear fende rs
On there ar fende rs,it is recomme ndedthat you
ins tallth eant enn aon theside oftheve hicle
closes tto thecent erofthero ad.
Use Tech nica lSpe cifica tionISO/T S21 609 (Road
Ve hicles –"EMCs forins tallation ofafte rm arke t
ra dio freq uency transmit tingeq uipment ")when re
trof itti ng two-w ayradios. Complywithth e
leg alrequ iremen tsforde tach able parts.
If yo ur vehicle hasinstallation sfo rtw o-w ayradio
eq uipment ,use thepo we rsupp lyand antenn a
con nectors prov ided inthepr e-ins tallation .Be
sur eto obser vethemanuf acturer'ssupplement s
when installing.
Tw o-w ayradio transmi ssion output
The maxi mum transm ission outpu t(PEAK) atthe
base oftheant enn amus tno texc eed theva lues
in thefo llo wing table.
Fr eq uency bandandmaxim um transm ission
out put Fr
eq uency band Maximumtransm is‐
sion output
Sho rtwa ve
3 -54 MHz 30
W
4 m wav eband
74 -88 MHz 15
W Fr
eq uency band Maximumtransm is‐
sion output
2 m wav eband
14 4-17 4MHz 25
W
tr unk edradio sys‐
te m/T etra
380 -460 MHz 10
W
70 cm wav eband
420 -450 MHz 15
W
Tw o-w ayradio
(2G/3G/ 4G) 10
W The
follo wing device scan beused intheve hicle
wit hout restrictions :
R Two-w ayradios withamaximum transmis ‐
sion output ofup to100mW
R Two-w ayradios withtra nsm itter freq uencies
in the380 -41 0MHz freq uency bandanda
maximu mtransmi ssionoutpu tof up to2W
(tr unk edradio system/T etra )
R Mobile phones (2G/3G/4G) Te
ch nica lda ta 42
1

Ther
ear eno restrictions whenpos itioning the
ant enn aon theoutside oftheve hicle forth efo l‐
lo wing freq uenc ybands:
R Trunk edradio system/T etra
R 70cm waveband
R 2G/3G/ 4G Ve
hicl eiden tificati onplat e,VIN and engine
number overview
Ve hicl eiden tificati onplat e Ve
hicle identif ication plate(US Aonl y)
1 Perm issible gros swe ight
2 Perm issible front axle load
3 Perm issible rear axle load
4 Paint code
5 VIN (vehicle identificat ion numb er) 422
Tech nica lda ta