flat tire MERCEDES-BENZ A-CLASS SEDAN 2020 Owner's Manual

1
Safetyve sts →
401
2 mebutt onand SOS button →
352
3 Hazard warning light s →
115
4 Glovebox →
101
5 Startin gassis tance →
411
6 Chec kingand refilling operatingfluids →
459
7 Tow- star tin gand towing away →
414 8
Flattir e →
401
9 QRcode foraccessi ngthere scue card →
29
A Tow- star tin gand towing away →
414
B TIREFIT kit →
403
C Fuelfiller flap withins truct ion labels fortir e
pr essu re,fuel type andQRcode foraccessi ng
th ere scue card →
147 At
aglanc e– Em erge ncie sand brea kdo wns 19

Emer
gency Re
mo ving the safetyve st The
safetyve stsar elocat edinthesaf etyve st
com partments inthedr iver's andfront
passeng erdoor stow agecom partment s. #
Toremo ve:pu llou tsa fety vest bag 1by
loop 2. #
Open safetyve st bag 1and pulloutthe
saf etyve st.
% Ther ear ealso safetyve st com partments in
th ere ar door stow agecom partment sin
whic hsaf etyve stscan bestor ed. 1
Maximum numberofwa shes
2 Maximum wash temp eratur e
3 Donotbleac h
4 Donotiron
5 Donottumble dry
6 Donotdr yclean
7 Class 2saf etyve st The
requ iremen tsdef ined bytheleg alstandar d
ar eon lyfulfille d ifth esaf etyve st isthecor rect
size andisful lyclos ed.
The safetyve st mus tbe replaced inthefo llo wing
situat ions:
R there flect ive st rips aredamag edordir ty
R themaximum permissible numberofwa shes
is exc eeded
R thefluor esc ence has faded Flat
tire No
teson flat tires &
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 on withaflat tire. #
Chan getheflat tireimm ediat elywit han
emer gency sparewheel orspar ewheel. Br
eakdo wnassis tance 40
1

Alt
ernati vely,co nsu 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 es). 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)
(/ page402).
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 (/ page403).
R Vehicl eswith Mercedes meconne ct:you
can makeacal lfo rbr eakdo wnassi stanc evia
th eov erhead control panel inthecase ofa
br eakdo wn(/ page352). R
Allvehicl es:chang eth ewheel
(/ page44 7).
% Theem erge ncy sparewheel isonl yav ailable
in cer tain coun tries. No
teson MOExt ended tires (run-fl attire) &
WARNIN GRisk ofacci dent whendr ivi ng
in eme rgency mode
When driving inemer gency mod e,thehan‐
dling charact eristic sar eim pair ed.e.g.when
cor ner ing,when accelerating stro ng lyand
when brakin g. #
Donotexc eed theper missible maxi‐
mum speed forMOExt ended tires. #
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 con tinuous ESP®
int erve ntio n
R crac ks intireside 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 lattire), 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‐ 40
2
Brea kdo wnassist anc e

juncti
onwith 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.
If apr essur eloss warning mess ageappear sin
th emultifunc tiondispla y,proceed asfollo ws :
R Chec kth etir efo rdama 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 orarymeasur e. TIREFIT
kitstorage location The
TIREF ITkit islocat edunder thetrunk floor . 1
Tire seala ntbottle
2 Tire inflation compressor Using
theTIR EFIT kit Re
quirement s Re
quired tools:
R Tire seala ntbottle
R TIREFIT sticke r
R Sticke rwit hde tails ofthemaximum permis‐
sible speed
R Tire inflation compressor
R Gloves
TIREFIT kitstor ag elocation: (/page403)
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
In thefo llo wing situat ionsinpar ticular ,th e
tir ese alant isuna ble to prov ide sufficie nt
br ea kdo wnassista nce, asitis una ble to seal
th etir epr oper ly: Br
ea kdo wnassista nce 40
3

R
Ther ear ecuts orpunct ures inthetir e
lar gerth an those prev iousl ymen tioned.
R The wheel rim isdama ged.
R Youha ve driven atvery low tirepr essur e
or on aflat tire. #
Donotdr ive on . #
Con sult aqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofinju ryand poiso ning
fr om tiresealan t
The tiresealan tis har mfuland caus esirrita ‐
tio n.Do notal lo w itto come intocont act
wi th theskin ,ey es orclo thing, and donot
sw allo wit. Do notinhale tiresealant fumes.
Ke ep thetir esealant away from childr en.
If yo uco me intoco ntact withth etir esealant,
obser vethefo llo wing: #
Rinse offth etir esealant from your skin
imm ediat elyusin gwa ter. #
Iftir eseal antgets int oyo ur eyes, thor‐
oughl yrinse outth eey es using clean
wa ter. #
Iftir eseal anthas been swallowe d,
immediat elyrinse outth emout hth or‐
oughl yand drink plenty ofwa ter.Do not
ind uce vomiting andseek medica l
att ention immedi ately . #
Cha ngeout ofanyclo thes con tamina‐
te dwit htir esealant immediat ely. #
Ifall ergic react ionsocc ur,seek medical
att ent ion imm ediat ely. *
NO
TEOverhea ting dueto thetir einf la‐
tion compressor running toolong #
Donotru nth etir einf lation compressor
fo rlong erthan tenminu teswit hout
int erru ption. Com
plywit hth emanuf acturer'ssafetyno teson
th est icke ron thetir esealant bottle.
Ha ve thetir esealant bottle replaced ataqu ali‐
fi ed specialis two rkshop everyfive years. #
Donotre mo veanyfo re ign obje ctswhic h
ha ve ent ered thetir e. #
Remo vesticke r1 from thetir einf lation
com pressor housing andaffix it to theins tru‐
ment clusterwit hin thedr iver's field of
vision. 40
4
Breakdo wnassis tance

#
Press onand offswitc h8 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 ach‐
ie ve d: #
Swi tchof 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. #
Drive fo rw ards orreve rseve ry slo wlyfo r
appr oximat 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 reac hed
If th especif iedtirepr 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. Dama
gedtir es and atir epr essur eth at istoo
lo w can significan tly im pair brakin gand han‐
dling charact eristic s. #
Donotcon tinue drivin g. #
Con sult aqu alif ied spec ialistwo rkshop. *
NO
TEStainin gcaus edbyleakin gtir e
sealant Af
teruse, excess tiresealant mayleak out
fr om thefilling hose. #
Ther efor e, place thefilling hose inthe
plas ticbag that con tained theTIREFI T
kit. If,
afte rte nminut es,atir epr essur eof
200 kPa(2.0 bar/29 psi)hasbeen achie ved: #
Swi tchof 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. 406
Breakdo wnassis tance

Ti
re pres sur e No
teson tirepr essur e &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntor excess ive tir epr ess ure
Under inflate dor ove rinf late dtir es pose the
fo llo wing risk s:
R The tires ma ybur st,especiall yas the
load andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or
une venly, whic hma ygr ea tly impair tire
traction .
R The drivin gch aract eristic s,as wellas
st eer ing and braking, maybe greatl y
im pair ed. #
Com plywithth ere comme ndedtire
pr ess ureand checkth etir epr essur eof
all tires including thespar ewheel regu‐
lar ly:
R atleas tonce amont h
R when theload chang es R
beforeembar kingon alon gerjour ney
R ifoper ating conditions chang e,e.g .of f-
ro ad drivin g #
Adjus tth etir epr essur eas neces sary. Ti
re pressur ewhic his toohigh ortoolow can:
R Shor tenth eser vice life of thetir es.
R Cause increased tiredamag e.
R Adversely affect drivi ng charact eristic sand
th us drivin gsaf ety, e.g. due tohydroplaning. &
WARNIN GRisk ofan acci dent dueto
insuf ficie nttirepr ess ure
Ti re swit hpr essur eth at istoolow can over‐
heat andburstas are sult.
In addition, they also sufferfr om excessiv e
and/or irre gular wear,whic hcan significan tly
im pair thebr aking proper tiesand thehan‐
dling charact eristic s. #
Avoid excessiv elylow tirepr essur esin
all thetir es, including thespar ewheel. Ti
re pressur ewhic his toolow can cause:
R Tire def ectsas are sult ofove rheating.
R Impair edhandling charact eristic s.
R Irre gular wear.
R Incr eased fuelconsum ption. &
WARNIN GRisk ofacci dent from exces‐
siv etir epr essur e
Ti re swit hexc essiv elyhigh pressur ecan
bur stbecause they aredamag edmor eeasil y
by highw ayfill, po tholes etc.
In addition, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elyhigh tirepr essur esin
all thetir es, including thespar ewheel. Ti
re pressur ewhic his toohigh cancause:
R Increased brakin gdis tance.
R Impaired handl ing charact eristic s.
R Irre gular wear. 42
4
Whee lsand tires

Fu
rther relat ed subje cts:
R Noteson tirepr essur e(/ page42 4)
R Tire pressur eta ble (/ page425)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page43 1) Ti
re pres sur emoni toring system Fu
nction ofthetir epr essur emoni toring sys‐
te m &
DANG ER Risk ofacc iden tdue toinc or‐
re ct tirepr ess ure
Eac htir e, incl uding thespar etir e(if present ),
should becheckedat leas tonc eamont h
when coldandthen inflated tothepr essur e
re comme ndedbytheve hicle manuf acturer
(see theTire and Loadi ngInfo rm atio nplac‐
ar don thedr iver's side B‑pillar orthetir e
pr essur eta ble ontheinside ofthefuel filler
fl ap ofyour vehicle). Ifyo ur vehicle hastires
of adif fere nt size than thesize indicat edon
th eTire and Loadi ngInfo rm atio nplacar dor th
etir epr essur eta ble, youmus tfind outth e
cor rect tirepr ess ures forth ese tires.
As anadded safetyfe atur e,your vehicle has
been equipped withatir epr essur emonit or‐
ing system (TPMS) that illumin ates alow tire
pr essur eind icat orlam pwhen oneor mor eof
yo ur tires aresign ifican tly und erinf lated.
Ac cor ding ly,if th elow tirepr essur eindicat or
lam plights up,yousho uld stop and check
yo ur tires assoo nas poss ible, andinflate
th em tothecor rect press ure. Driving on a
sig nifica ntly underinf late dtir ecauses thetir e
to ove rheat and canlead totirefa ilur e.
Un der inflation alsoincreases fuelconsum p‐
tion ,re duces thelife ex pect ancy ofthetir e
and mayadv ersel yaf fect thehandling and
br aking charact eristic sof theve hicle. Please
no te that theTPMS isno ta subs titutefo r
pr oper tiremaint enanc e,and itis thedr iver's
re sponsibili tyto maint aincorrect tirepr es‐
su re,eve nif und erinf latio nha sno tre ac hed
th eleve lto trig ge rill umina tionoftheTPMS
lo w tirepr essur eindicat orlam p. Yo
ur vehicle hasalso been equipped witha
TPMS malfunction indicatortoindic atewhen
th esy stem isno toper ating proper ly.The
TPM Smal functi onindicatoris combined with
th elow tirepr essur eindicat orlam p.When
th esy stem detects amal functi on,theindica‐
to rlamp willfl ash forapp roxima tely amin ute
and then remain continuously illumina ted.
This sequence willcontinue upon subseq uent
ve hicle star t-ups aslon gas themalfunct ion
ex ists.
When themalfunct ionindicat orisillumina‐
te d, thesy stem mayno tbe able todetect or
sig nal low tirepr ess ure asintende d.TPM S
mal functi onsmayoccu rfo ra va riet yof rea‐
son s,inc ludin gth eins tallation ofinc om pati‐
ble replacemen tor alternat etir es orwheels
on theve hicle that preve nttheTPMS from
func tioningproper ly.
Alw aysch eckth eTPMS malfunct ionwarning
lam paf te rre placing oneormor etir es or
wheels onyour vehicle toensur eth at the
re placemen tor alternat etir es and wheels Wheels
andtires 42
7

Af
tera ch ang ein tirepr essur e,awheel rotatio n
or atir ech ang e,or ifyo uha ve re-ins talled
wheels ortires, thetir epr essur eloss warning
sy stem has tobe restar ted(/ page430).
The tirepr essur eloss warning system does not
re place theneed toregular lych eckth etir epr es‐
sur e.
Sy stem limita tions
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 trating thetir e
R Steady pressur eloss inseveraltir es
The system has are strict ed ordel ayed func tion
par ticular lyin thefo llo wing situat ions:
R Poor ground condit ions,e.g.snowor grave l
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 Be
sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page42 4)
R Displa ymessag esabout thetir es
(/ page508)
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 on
eac hof thefo ur wheel s(/ page42 4).
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 messageis sho wninthemultifunc ‐
tion displa y.
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. #
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. 430
Wheels andtires

and
one-h alftim esaswellon thego vernment
te st trac kas atir egr ad ed 100.
The relativ eper form anc eof tires depen dsupon
th eactual conditions oftheir use, howe ver,and
ma ydepar tsign ifican tly from thenor mdue to
va riatio nsindrivin ghabit s,ser vicepr act icesand
dif fere nces inroad charact eristic sand climate
con dition s.
Tr actio ngr ade &
DANG ER Risk ofacc iden tdue toinade‐
qu atetract ion
The tract ion grade assig nedtothis tireis
based onstra ight -ahead brakin gtract ion
te sts, and does notinclude either acceler a‐
tion, corner ing, hydroplaning orpeak traction
ch aract eristic s. #
Alw aysadap tyo ur drivin gst yle and
dr ive at aspeed tosuit thepr ev ailin g
traf fic and weather condition s. *
NO
TEDama getothedr ivet ra in from
wheelspin #
Avoid wheelspin. The
traction classes, from highes tto lowe st,ar e
AA ,A, Band C.Tho segrad es repr esent thetir e's
ability tostop onwetpa vement asmeasu red
unde rco ntro lled condition son spec ified govern‐
ment test sur faces ofasp haltand concr ete. A
tir emar kedC ma yha ve poor traction perform ‐
anc e.
Te mp eratur egr ade &
WARNIN GRisk ofacci dent from tire
ove rheating andtirefa ilur e
The temp eratur egr ade forth is tireis es tab‐
lished fora tir eth at isproper lyinflat ed and
no tove rloaded. Excessiv espeed, underinfla‐
tion, orexc essiv eloading, either separ ately
or incombin ation,cancause excessiv eheat
build-up andpossible tirefa ilur e. #
Obser vethere comme ndedtirepr es‐
su resand regular lych eckth etir epr es‐ sur
eof all tires including thespar e
wheel. #
Adjus tth etir epr essur eas neces sary. The
temp eratur egr ades areA (the highes t),B
and C.The yre pr esent thetir e's resis tance tothe
ge ner ation ofhea tand itsability todissipat e
heat when tested under controlled conditions on
a specif iedindoor laborator yte st wheel. Sus‐
ta ined hightemp eratur ecan cause themat erial
of thetir eto deg ener ateand reduce tirelife, and
exc essiv ete mp eratur ecan lead tosudden tire
fa ilur e.Grade Ccor responds toaleve lof per‐
fo rm anc ewhic hall passe nger car tires mus t
mee tunde rth eFe der alMo torSaf etySt andar d
No. 109. Grade sB and Arepr esent higher leve ls
of per form anc eon thelabor ator yte st wheel
th an theminimum requ ired bylaw. DO
T,Tire Iden tificat ionNumbe r(TI N) US
tirere gulations stipulat eth at eve rytire man‐
uf actu reror retrea de rmu stimprint aTIN inor
on theside wallof eac htir epr oduced. 436
Wheels andtires