2021 MERCEDES-BENZ C CLASS run flat

#
Push both sides ofwa rning triang leholder
1 inthedir ect ion ofthear row and open it. #
Remo vewarning triang le2.
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). Br
eakdo wnassis tance 31
5

In
theeve ntofaflat tire, thefo llo wing option s
ar eav ailable dependingon your vehicle's equip‐
ment :
R Vehicl eswith MOExt endedtir es: itis pos‐
sibl eto continu eth ejour neyfo ra shor t
per iod oftime. Makesur eyo uobse rveth e
no teson MOExt ended tires (run-f lattires)
(/ page31 6).
R Vehicl eswith aTIREF ITkit :yo ucan repair
th etir eso that itis poss ibletocontinu eth e
jou rney fora shor tper iod oftime. Todo this,
use theTIREFI Tkit (/ page31 7).
R Vehicl eswith Mercedes meconne ct:you
can makeacal lfo rbr eakdo wnassi stanc evia
th eove rhead control panel inthecase ofa
br eakdo wn(/ page27 1).
R Allvehicl es:chang eth ewheel
(/ page359).
% The emer gency sparewheel isonl yav ailable
in cer tain coun tries. No
teson MOExt ended tires (run-fl attires) &
WARNIN GRisk ofacci dent whendr ivi ng
in limp -hom emod e
Whe ndr ivi ng ineme rgency modeth ehan‐
dling charact eristic sar eim pair ed. #
Donotexc eed thespecif iedmaximum
speed oftheMOEx tende dtir es. #
Avoid anyabr uptst eer ing and driving
maneuv ersas wellas drivin gove r
obs tacle s(cu rbs, pothol es, off-r oa d).
Thi sap plies, in pa rticular ,to aloaded
ve hicle. #
Stop driving intheemer gency mod eif
yo uno tic e:
R Ban gingno ise
R Vehicle vibration
R Smok ewhic hsmells likeru bber
R Contin uousESP®
int erve ntio n
R Crac ks inthetir eside walls #
Afterdr iving inemerg encymode, have
th erims checkedby aqu alif ied spec ial‐ is
two rkshop withre ga rd totheir further
use. #
The defective tir emus tbe replaced in
eve rycase . Wi
th MOExt ended tires (run-f lattires), youcan
co ntinue todrive yo ur vehicle evenif th er eis a
tot alloss ofpressur ein on eor mor etir es. How‐
eve r,th etir eaf fect ed mus tno tsho wan ycle arly
vis ible da mag e.
Yo ucan recogni zeMOExt endedtir es by the
MOExt ended marking whichappea rson theside
wa llof thetir e.
Ve hicl eswith tirepr ess urelos swa rning sys‐
te m: MOExt endedtires ma yonly beused incon‐
junc tionwi th an act ivat ed tirepr essur eloss
wa rning system.
Ve hicl eswith tirepr ess uremonit oring sys‐
te m: MOExt endedtires ma yonly beused incon‐
junc tionwi th an act ivat ed tirepr essur emon itor‐
ing system. 31
6
Brea kdo wnassista nce

If
apr essur eloss warning mess ageappear sin
th emultifunc tiondispla y,proceed asfollo ws :
R Chec kth etir es fordama ge.
R Ifdr iving on,obser vethefo llo wing notes.
Dr iving distance possible inemer gency
mode afte rthe pres sur elo ss wa rning: Load
condit ion Driving distance pos‐
sible inemer gency
mode
Pa rtiall yladen 50miles (80km)
Fu lly laden 19mile s(30 km) The
driving distance possi ble in eme rgency
mod ema yva ry dependin gon thedr iving style.
Obser vethemaximum permissible speedof
50 mph(80 km/h).
If atir ehas gone flat and cannotbe replaced
wit han MOEx tende dtir e, youcan useast and‐
ar dtir eas ate mp orar ymeasur e. TIREFIT
kitstorage location The
TIREF ITkit islocat edunder thetrunk floor . 1
Tire seala ntbottle
2 Tire inflation compressor
Depe ndingon themodel, theTIREFI Tkit may
also belocat edinother places underthetrunk
fl oor . Using
theTIR EFIT kit Re
quirement s:
R Tire seala ntbottle
R TIREFIT sticke r R
Tire inflation compressor
R Gloves(depending ontheve hicle equipment)
TIREFIT kitstor ag elocation: (/page31 7)
Yo ucan useTIRE FITtir esealan tto seal perfora ‐
tio nda ma geofup to0.16 in(4 mm), particular ly
th ose inthetir econ tact surface. Youcan use
TIRE FITin out side temp eratur esdown to-4 °F
(-20 °C). &
WARNIN GRisk ofacci dent whenus ing
tir esea lant
The tiresea lant ma ybe una ble to seal the
tir epr op erly,es pe cia llyinthefo llo wing
cases :
R Ther ear ecut sor punc tures inthetir e
larg erthan damag epr ev iousl ymen ‐
tion ed.
R The wheel rim isdama ged.
R Youha ve driven atvery low tirepr essur e
or on aflat tire. #
Donotcon tinue drivin g. #
Con sult aqu alif ied spec ialistwo rkshop. Br
eakdo wnassis tance 317

#
Push theplug ofhose 5intoflang e6 of
tir esealan tbo ttle 1 untilth eplug engages. #
Place tiresealant bottle 1 head down wards
int ore cess 2ofthetir einf lation compres‐
sor . #
Remo vethecap from valve 7 onthefa ulty
tir e. #
Screw filling hose 8ontova lve 7. #
Insertplug 4intoa12 Vsoc ketin your
ve hicle. #
Switc hon theignition . #
Press onand offswitc h3 onthetir einf la‐
tion compressor .
The tireinf lation compressor isswitc hedon.
The tireis inf lated. First,tir esealant ispum‐
ped intoth etir e. The pressur ema ybr ief ly
ri se toappr oximat ely500 kPa(5 bar/7 3psi).
Do notswitc hof fth etir einflat ioncom pres‐
sor during this pha se! #
Letth etir einf lation compressor runfo ra
maximu mof tenminu tes.
The tireshould then have attaine datir e
pr essur eof at leas t20 0kP a(2. 0bar/
29 psi).
If tir esealan tleak sout ,mak esur eyo ucle an the
af fect ed area asquickl yas possible .It is prefer a‐
ble touse clean water.
If yo uge ttir ese alant onyour clo thing, have it
clean edassoon aspossible withper chlor oethy‐
len e. If,
afte rte nminut es,atir epr essur eof
200 kPa(2.0 bar/29 psi)hasnotbeen
attained: #
Switc hof fth etir einf lation compressor . #
Unscr ew thefilling hose from theva lve of the
fa ulty tire.
Pleas eno te that tiresealan tma yleak outwhen
uns crew ing thefilling hose. #
Very slo wlydr ive fo rw ards orreve rseappr ox‐
imat ely33 ft(10 m). #
Pum pup thetir eag ain.
Af tera maximu mof tenminu testh etir e
pr essur emus tbe atleas t200 kPa(2.0 bar/
29 psi). &
WARNIN GRisk ofacci dent dueto the
specif iedtirepr essur eno tbeing attained
If th eminimum tirepr essur eis no tre ac hed
af te rth especif iedtime, thetir eis toobadl y
damag ed.The tiresealant cannotrepair the
tir ein this ins tance.
The braki ng and drivi ng charact eristic sma y
be great lyim pair ed. Br
eakdo wnassis tance 31
9

Be
sureto also payatt ent ion tothefo llo wing
re lat ed topic:
R Noteson tirepr essur e(/ page336) Ti
re pres sur elo ss wa rning system Fu
nction ofthetir epr essur eloss warning
sy stem
The tirepr essur eloss warning system warnsth e
dr iver by means ofdisp lay messa geswhen ther e
is ase vere tirepr es su re loss.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Incorrectly settir epr ess ure
R Sud den press urelos scau sed,fo rex am ple,
by afo re ign obje ctpene tratin gth etir e
R Steady pressur eloss inseveraltir es
The system has are strict ed ordel aye dfunc tion
par ticular lyin thefo llo wing situat ions:
R Poor ground condit ions,e.g.snowor gra vel
R Driving with sno wch ains R
When adoptingave ry spor tydriving style
wit hhigh corner ing speeds orsudden accel‐
er ation
R Drivin gwit hahigh load
The tirepr essur eloss warning system isonl yan
aid. Itis thedr iver's responsibili tyto setth etir e
pr essur eto there comme ndedcoldtirepr ess ure
su itab leforth eoper ating situation andtocheck
it.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page336)
R Displa ymessag esabout thetir es
(/ page41 7)
Re star ting thetir epr essur eloss warning
sy stem
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status onall
wheels . Re
star tth etir epr essur eloss warning system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled.
On- boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Pressure ControlSystem Active
Restart :Press Touch Controlmessag eis
sho wninthemultifunc tiondispla y. #
Tobegin restar t,pr ess Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Pressure NowOK?messag eis
sho wninthemultifunc tiondispla y. #
Select Yes. #
Toconf irm restar t,pr ess Touc hCon trol on
th elef t-hand sideofthesteer ing wheel.
The Run FlatIndic atorRestart edmessag eis
sho wninthemultifunc tiondispla y. 34
2
Wheels andtires

Ti
re pres sur elo ss wa rning system Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
Check TirePressure Soon *C
anada only:
The tirepr essur eloss warning system has detected asig nifica ntlos sof press ure. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires can wearexc essiv elyand/or unevenly.
R The driving charact eristic sas wellas thesteer ing and braking maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ures. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page336) andthetir es. #
When thetir epr essur eis cor rect, restar tth etir epr essur eloss warning system (/ page342).
Check TirePressure Then
Restart RunFlatIndic ator *C
anada only:
The tirepr essur eloss warning system gener ated adi spl aymessa geand hasnotbeen restar tedsinc e. #
When thetir epr essur eis cor rect, restar tth etir epr essur eloss warning system (/ page342). Displa
ymessag esand warning/ indic ator lam ps 42
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Run FlatIndicat orInopera-
tive *C
anada only:
The tirepr essur eloss warning system ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. Engine
oil Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilAtNext
Refueling *T
heengine oilleve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Checkth eengine oilleve lwhen next refuel ing.
Ad dengin eoil (/ page305 ).
No teson engine oil(/ page37 2). 422
Displaymessa gesand 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
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