trunk MERCEDES-BENZ C CLASS 2021 Owner's Guide

%
Dep endingonthemodel, thetir ech ang e
to ol kit maybe locat edatother positions
under thetrunk floor . 1
Lugwr enc h
2 Folding choc k
3 Jack Pr
epar ingtheve hicl efo ra wh eelch ang e Re
quirement s:
R The requ ired tire-c hang eto ol kit isavailable.
If yo ur vehicle isno teq uipped withth etir e-
ch ang eto ol kit, consult aqu alif ied spec ialist
wo rkshop tofind outab ou tsu itab letools. R
The vehicle isno ton aslope.
R The vehicle ison solid, non-slipper yand leve l
gr ou nd . #
Apply theelectr icpar king brak emanually . #
Movethefront wheels tothest ra ight -ahead
posit ion. #
Vehicl eswith automatic transmiss ion:
Shif tint oposi tion 005D. #
Vehicl eswith leve lcontr olsystem: Setth e
nor malve hicle leve l(/ page18 9). #
Swi tchof fth eengine. #
Mak esur eth at theengine cannotbe star ted. #
Place choc ks orother suitable items under
th efront and rear ofthewheel that isdiago‐
nall yoppos ite th ewheel youwish tochang e. #
Ifnec essar y,remo vethewheel trim/hub
caps (/page359). #
Raise theve hicle (/page360). Re
mo ving and inst alli ng thewheel trim/h ub
cap s Re
quirement s:
R The vehicle isprepar edfora whee lch ang e
(/ page35 9).
Pla stic hub cap #
Toremo ve:tur nth ecent ercoverof thehub
cap count er-cloc kwise andremo vethehub
cap. #
Toins tall: makesur eth at thecent ercover
of thehub capistur ned count er-cloc kwise. #
Position thehub capand turnth ecent er
co vercloc kwise untilthehub capengages
ph ysicall yand audibly . Wheels
andtires 359

Alum
inum hubcap #
Toremo ve:po sitio nsoc ket2 from thetir e-
ch ang eto ol kit onhub cap1. #
Position wheel wrenc h3 onsoc ket2. #
Usingwheelwr enc h3, turnhu bcap 1
cou nter-clo ckwise andremo veit. #
Toins tall: follo wtheins truction sabo vein
re ve rseor der .
% Specif iedtight ening torq ue: 18lb-f t
(25 Nm). Ra
ising theve hicl ewhe nch angi ngawhe el Re
quirement s:
R Ther ear eno per sons intheve hicle.
R The vehicle hasbeen prepar edfora whee l
ch ang e(/ page35 9).
R The wheel trims and hub caps have been
re mo ved(/ page359 ).
Im por tant noteson using thejac k:
R Use onlya ve hicle-specif icjac kth at has
been approved byMer cedes-Ben zto raise
th eve hicle.
R The jackis onl ydesigned forra ising and
holdin gth eve hicle fora shor ttime whilea
whee lis being chang edand notfo rmaint e‐
nance workund ertheve hicle.
R The jackmus tbe placed onafirm ,fl at and
no n-slip surface. Ifneces sary,use alar ge,
fl at, load- bearing,no n-slip unde rlay .
R The foot ofthejac kmus tbe position edverti‐
call yunder thejac ksuppor tpoint . Ru
les ofcon duct when theve hicle israised:
R Neverpla ceyour han dsorfeet und erthe
ve hicle.
R Neverlie under theve hicle.
R Donotst ar tth eengine anddonotre lease
th eelectr icpar king brak e.
R Donotopen orclose anydoor sor thetrunk
lid. 360
Wheels andtires

#
Neverins tallmor eth 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 ®
. #
Have theemer 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. %
The eme rgency sparewheel issec ured inthe
emer gency sparewheel baginthetrunk .
Obser vethefo llo wing noteson installing an
emer gency sparewheel:
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur e
as neces sary.
R The maximum permissible speedwithan
emer gency sparewheel installed is50 mph
(80 km/ h). R
Donoteq uip theemer gency sparewheel
wit hsn ow chains .
R Replace 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(/ page336)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page34 3) R
Tire pressur eta ble (/ page338)
R Noteson installing tires (/ page355 ) Wheels
andtires 365

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 .
Obser vethemanuf acturer'ssupplement swhen
ins talling.
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 (1
00 W)
4 m freq uency band
74 -88 MHz (30
W)
2 m frequency band
14 4-17 4MHz (50
W) Fr
eq uency band Maximumtransm is‐
sion output
Te rres trial Trunk ed
Ra dio (TETRA)
380 -460 MHz (1
0 W)
70 cm freq uency
band
420 -450 MHz (35
W)
Tw o-w ayradio
(2G/3G/ 4G) (1
0 W) The
follo wing canbeused intheve hicle without
re strictions :
R Two-w ayradios withamaximum transmis ‐
sion output ofup to100mW
R RFtransmi tter swit htransmi tter freq uenci es
in the380 -41 0MHz freq uency bandanda
maximu mtransmi ssionoutpu tof up to2W
(TETR A)
R Mobi lephones (2G/3G/4G) There
areno restrictions whenpos itioning the
ant enn aon theoutside oftheve hicle forth efo l‐
lo wing freq uenc ybands :
R Terres trial Trunk edRadio (TETRA)
R 70cm freq uency band
R 2G/3G/ 4G Ra
dio ope ratin gper mits forve hicl eco mp o‐
nent s
Manuf acturer informat ionabout wireless vehicle
com ponent scan befound usingth eke yphr ase
"R adio operating per mits"intheDigit alOper a‐
to r's Manua lin theve hicle, ontheInt erne tand
in theapp. Te
ch nica lda ta 36
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0084 *T
hetrunk lidisopen. &
DANG ER Risk ofexhaus tga spoisoning
Combus tionengines emitpoisonous exhaus tga ses suchas carbon monoxide.Exhaus tga ses can enterthe
ve hicle interior ifth etrunk lidisopen when theengine isrunning ,esp ecially ifth eve hicle isin mo tion. #
Alw aysswitc hof fth eengine beforeopening thetrunk lid. #
Neverdr ive wit hth etrunk lidopen. #
Close thetrunk lid.
006F
Rear LeftBack restNot
Latc hed (exa mp le) *T
heseat backres tof thecor responding seatisno teng aged. #
Foldtheseat backres tbac kuntil iteng ages.
00B2 Check Washer Fluid *T
hewasher fluid leve lin thewa sher fluid reser voirhas dropped belowtheminimum. #
Addwa sher fluid (/ page30 6). 390
Displaymes sagesand warning/ indic ator lam ps

Ext
erior mir rors
Anti-g lare mode (automatic).... .......... .... 123
Au tomatic mirrorfo lding function. .........1 25
Fo lding in/out.. .....................................1 22
Oper ating thememor yfunc tion.............1 01
Pa rking posit ion..................................... 124
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 122 F
Fa tig ue detection
see ATTENTION ASSIST
Fa vo rite s
Ad ding. .... ........................................ ...... 217
Callin gup ...............................................2 17
Del eting.. ...............................................2 17
Mo ving.. ............................................. ....2 17
Ov ervie w.. ..............................................2 16
Re nam ing<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>217
Fi rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> .......315
Flat tire
Chan gingawheel .................................. 359
MOE xtend edtires.. ................................ 316
No tes... ............................................. ..... 315
TIREFIT kit..............................................3 17 Flat
towing
see Tow- bar system
Floor mats.................................................. 113
Fo ilco vering
Ra dar and ultrasonic sensors................ 158
Fr ee sof tware.. ............................................ 34
Fr eq uencies
Tw o-w ayradio .................................. ...... 367
Fr ont airbag (driver ,fr ont passeng er).......4 1
Fr ont passeng erseat
see Seat
Fu el
Ad ditiv es.......................................... ...... 372
E1 0.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 371
Fu elreser ve<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 372
Gasolin e............................................. ....3 71
Qua lity(gaso line ).<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 371
Re fuel ing.... ...........................................1 48
Sulfu rcont ent............ ............................ 371
Ta nk cont ent<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ................372
Fu nction seat
see Door controlpanel Fu
ses
Bef orere placing afuse .......................... 331
Dashboar dfuse box.............................. 333
Fu se assignment diagram...................... 331
Fu se boxin theengine compartmen t.... 332
Fu se boxin thefront -passen gerfo ot ‐
we ll....................................................... 334
Fu se boxin thetrunk... .........................3 34
No tes... .................................................. 331
Fu ses
see Fuses G
Gar agedoor opener
Clea ring thememor y.... .........................1 54
Opening orclosing thedoor.. ................1 54
Pr ogr amming buttons. ........................... 152
Re sol ving problems ...............................1 54
Sync hronizi ngthero lling code.. .............1 53
Gas station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 236
Swi tching theaut omatic searchon/
of f.......................................................... 242
Gasoli ne...................................................... 371 45
4
Inde x

Cen
tralcontro lelemen ts.......................2 13
Collis iondetection (parked vehicle) .......1 56
Conf iguring displ aysettin gs.................. 221
Conf iguringdrive pr ogr am I.... ......... ...... 143
Fa vorite s... ............................................. 216
Ov ervie w.. ..............................................2 12
Re ar clim atecon trol. .............................1 28
Re stor ing (fact oryse ttings).. ................. 230
Switc hingthesound on/off.<0011001100110011001100110011001100110011001100110011001100110011
00110011> 218
Multimedia system
see Entering charact ers
see Touc hpad N
Na vig ation
Inser ting/r emoving anSD card............. 231
Sho wing/hi ding themenu. ............... ..... 232
Switc hingon.................................... ..... 232
Up dating themap data.... ......................2 54
Na vig ation
see Destination
see Destination entry
see Map
see Route
see Routeguidan ce see
Traf fic inf ormati on
Na vig ation announcements
Ac tivati ng/d eactiv ating........... ..............245
Ad jus ting thevo lume.. ...................... .....2 45
Re peating ........................................ ...... 246
Swi tching audio fa deout on/off........ .....2 45
Ne arField Comm unication(NFC)
Conn ecting themobile phonetothe
multime diasystem ................................ 261
Inf ormation.. .................................... ...... 261
Switc hingBluetooth®
audio equip‐
men t...................................................... 290
Swit ching mobile phones.................. .....2 61
Using amobile phone........................ ....2 61
Ne utr al
Inser ting...... .......................................... 144
NFC see NearFie ldCo mmu nication(NF C)
No teson breaking-in ane wve hicl e...... ...135 O
Occupant safety
see Airbag see
Automatic front pass engerfront
airb agshut off
see Pets intheve hicle
see PRE-S AFE®
(anticipat oryoccu‐
pant protect ion)
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
see Restra int system
see Seat belt
Oil see Engine oil
On-boar dcom puter
Displa yingtheser vice duedate............ 300
Hea d-upDisp lay <0050004800510058001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 210
Multifunction display.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 209
Ope rating ........... ...................................208
Ov ervie wof menu s.................. ..............208
On -bo arddia gnostic sin te rface
see Diag nostics connection
Onl ine services
Dat ast or ag e... ......................................... 32
Open-sour cesof tware................................3 4
Opening thetrunk lidusing your foot
HANDS-FREE ACCES S.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 74460
Index