wheel MERCEDES-BENZ A CLASS 2023 Workshop Manual

%
Have workor repair sto decor ativefo ils car -
ri ed out ataqu ali/ed special istwo rkshop,
e.g .in an aut hor izedMer cedes- BenzCen ter. NN
o o
t t
es on car es
on car eof v e
of vehicle par ehicle
parts ts
&
W W
ARNIN G ARNIN
GRisk ofentr apment ifth ewind-
shield wipersar eswitc hedonwhile the
wind shield isbein gclean ed
If th ewindshield wipersar ese tin mo tion
while youar ecleaning thewindshield orwiper
blades, youcan betrapped bythewiper arm. #
Alwaysswitc ho. thewindshield wipers
and theve hicle beforeclean ingthewind-
shield orwiper blades. &
W W
ARNIN G ARNIN
GRisk ofbur nsfrom theta ilpipe
and tailpipe trims
The exhaus tta ilpipe andtailpipe trims can
become very hot.Ifyo ucome intocont act
wit hth ese partsof theve hicle, youcould burn
yo urself. #
Alwaysbe par ticu larlycar efular ound the
ta ilpipe andtheta ilpipe trims and super -
vise childr enespecia lly closel yin this
ar ea. #
Allo wvehicle partsto cool down before
to uc hing them. To
avo iddamag eto theve hicle, observetheno tes
on cleaning andcareof thefo llo wing vehicle
par ts:
Wheel sand r Wheel
sand rims ims
R Use waterand acid-fr eeallo ywheel cleaner s.
R Donotuse acidic alloywheel cleaner sto
re mo vebrak edust .This could damag ewheel
bolts andbrak ecom ponent s.
R Toavo idcor rosion ofthebr ak ediscs and
br ak epads, drive th eve hicle fora fe w minu tes
aTer clean ingbeforepar king it.The brak e
discs andbrak epads warm upand dryout.
W W
indo ws indo
ws
R Clean thewindo wsinside andoutside witha
dam pclo thand withaclean ingagent recom-
mende dfo rMer cedes-Benz. R
Donotuse dryclo thsor abr asiv eor sol vent-
bas edcleaning agents toclean theinside of
windo ws.
% ATe rch ang ingthewiper blades ortreating
th eve hicle withwa x,clean thewindshield
th or oughl ywit hcleaning agents recommen -
ded forMer cedes-Benz. Failur eto obser vethe
appli catio nins tructi ons mayre sult indamag e,
smear marksorblindin gspo ts.
% Remo veextern al fogging ordirton thewind-
shield infront ofthemultifun ctioncamer a.
Ot her wise, driving systems anddriving safety
sy stems maybe impair edornotav ailabl e
(/ page155).
W W
iper blade s iper
blade s
R Movethewiper arms intoth ere placement
position (/page119).
R With thewiper arms folded out,clean the
wiper blades withadam pclo th.
% Mak esur eth at thewiper blades arecoat ed.
The coating canleaveresidue son aclo th.Do
no tru bth ewiper blades excessiv elyor clean
th em toooTen. Maint
enance andcare
269 269

R
Donotallo wcosme tics,insect repellent or
sun cream tocome incont actwithth eplastic
tr im.
R R
eal w eal
wood andtr ood
andtrim elements im
elements
R Clean withamicr o/ber cloth.
R Blackpiano-lacq uerlook: Clean withadam p
clo thand soap ywa ter.
R Forhea vysoiling: Useacleaner recommen -
ded forMer cedes-Benz.
R Donotuse solvent-ba sedcleaning agents, pol-
ish es orwa xes.
Head liner Head
liner
R Clean withabr ush ordrysham poo.
Car Car
pet pe
t
R Use acar petand textil eclean ingagent recom-
mende dfo rMer cedes-Benz.
St St
eer eer
ing wheel madeofg ing
wheel madeofgenuine leat enuine
leather orDINA - her
orDINA -
MIC A MIC
A
* NO NO
TE TE
Damag ecaused bywrong clean ers #
Donotuse solvent-ba sedcleaning
ag ents suchas tarre mo veror wheel cleaner
;neit her should youuse polishes
or wa xes. Ot her wise youma ydamag e
th e/n ish. R
Clean withadam pclo thand 1%soap ywa ter
solut ionand then wipe withadr yclo th.
R Forhea vysoiling: Useacleaner recommen -
ded forMer cedes-Benz.
R Leat hercare:Use aleat her careag ent that
has been recommen dedforMer cedes-Benz.
R Donotallo wtheleat her tobecome toodam p.
R Donotuse amicr o/ber cloth.
% Leat herisanatur alproduct. Ithas natur al
sur face proper ties, suchas di.er ences in
st ru ctur e,mar kscaused bygrow thand injury
or subt lecolor di.erences. Thesesurface
pr oper tiesarech aract eristics ofleat her and
no tmat erial faults. What's more,leat her is
subject toanat ural agin gpr ocess during
whic hth esur face proper tieschang e.
Genu ineleat Genu
ineleat her seat cov her
seat cover s er
s
R Clean withadam pclo thand then wipe witha
dr yclo th. R
Leat hercare:Use aleat her careag ent that
has been recommen dedforMer cedes-Benz.
R Donotallo wtheleat her tobecome toodam p.
R Donotuse amicr o/ber cloth.
% Regula rclea ning andcare oftheleat her
re duces soiling, wearmar ksand agingdam-
ag eand thus sign i/ca ntly ex tends itslife
spa n.Clo thing that can leavestains ,e. g.
jea ns,ca nleav ediscolor ationontheleat her.
DIN DINAMIC AMIC
Aseat cov A
seat cover s er
s
R Clean withadam pclo th.
R Donotuse amicr o/ber cloth.
Imit Imit
ationleat atio
nleat her seat cov her
seat cover s er
s
R Clea nwit hadam pclo thand 1%soap ywa ter.
R Donotuse amicr o/ber cloth.
F F
abr abr
icseat cov ic
seat cover s er
s
R Clean withadam pmicr o/ber clothand 1%
soap ywa terand allowto dry. Maint
enanc eand care
271 271

SeSe
tting up t tti
ng up the w he
war ar
ning tr ning
tria ngle ia
ngle #
Foldside re0ect ors1 upw ards toform atri-
ang leand attachat theto pusing upper press-
stu d2. #
Foldlegs 3down and outtotheside. FF
ir s ir
st- aid kit t-aid
kit(soT- sided) (soT-
sided) ov ov
er er
vie w vie
w Fi
rs t-aid kit(soT side d)1 ison theleT orright in
th etrunk ,depending ontheve hicle version.
% Depending ontheve hicle' seq uipme nt,th e
/r st-ai dkit(so T-si ded) isin there cess inthe
side trim. Flat
tire Flat
tire NNo o
t t
es on es
on 0at 0at
tir tir
es es
&
W W
AR NIN G AR
NIN GRisk ofacciden tdue toa0at
tir e
A 0at tirese verely a.ects thedr iving charac-
te risti cs aswellas thesteer ing and braking of
th eve hicle.
T T
ir ir
es wit es
without hout
r r
un-0at un-0at
c c
har har
act act
er er
is is
tics: tics:
#
Donotdr ive wit ha0at tire. #
Chang eth e0at tireimmediat elywit han
emer gency sparewheel orspar ewheel.
Alt ernat ivel y, consul ta qu ali/ed special -
is two rkshop.
T T
ir ir
es wit es
with h
r r
un-0at un-0at
c c
har har
act act
er er
is is
tics: tics:
#
Obser vetheinf ormation andwarning
no teson MOExt endedtires (run-0at
tir es). Br
eakdo wnassis tance
273 273

In
theev ent ofa0at tire, thefo llo wing options are
av ailabl edepen dingon your vehicle' seq uipme nt:
R V V
ehicle swit ehicle
swith MOExt h
MOExt endedtir end
edtires: es:
itis possibl e
to cont inueth ejour neyfo ra shor tper iod of
time. Makesur eyo uobser vetheno teson
MOExt endedtires (run-0at tires)
(/ page274) .
R V V
ehicle swit ehicle
swit haTIR EFIT kit: h
aTIR EFIT kit:youcan repair the
tir eso that itis possibl eto cont inueth ejour -
ne yfo ra shor tper iod oftime. Todo this, use
th eTIREFIT kit(/ page275).
R V V
ehicles wit ehicles
withMer h
Mer cedes meconnect: cedes
meconnect: youcan
mak eacall forbr eakdo wnassist anceviathe
ove rhead contr olpanel inthecase ofabr eak -
do wn (/ page239).
R Allv All
vehicles: ehicles:
chang eth ewheel (/page316).
% The emer gency sparewheel isonl yav ailabl e
in cer tain countr ies. NNo o
t t
es on MOExt es
on MOExt ended tir ended
tires es
(r (r
un- 0at un-
0at tir tir
es) es)
&
W W
ARNIN G ARNIN
GRisk ofaccident whendriving in
lim p-home mode
When driving inemer gency mod eth ehandling
ch aract eristics areim pair ed. #
Donotex ceed thespeci/ed maximum
speed oftheMOExt ended tires. #
Avoid anyabr uptst eer ing and drivin g
maneuv ersas wellas driving over obst a-
cles (curbs, potholes, o.-road). This
appli es,inpar ticu lar,to aloaded vehicle. #
Stop drivin gin theemer gency mod eif
yo uno tice:
R Banging noise
R Vehicle vibration
R Smok ewhi chsmells likeru bber
R Contin uousESP®
int erve ntion
R Crac ks inthetir eside walls #
ATer driving inemer gency mod e,have
th erims checkedby aquali/ed specialist wo
rkshop withre ga rd totheir further
use. #
The defectiv etir emust bereplaced in
ev erycase. Wi
th MOEx tended tires (run -0at tires) ,yo ucan
continue todrive yo ur vehicle evenifth er eis a
to ta lloss ofpressur ein one ormor etir es. How-
ev er,th etir ea.ect edmust notsho wan yclear ly
visi ble dam age.
Yo ucan recogn izeMOExt endedtir es by the
MOEx tended marking whic happear son theside
wa llof thetir e.
V V
ehicles wit ehicles
withtir h
tir epr e
pr essur essur
eloss w e
loss war ar
ning syst ning
system: em:
MOExt ended tires ma yonl ybe used inconjunc-
tion withan activ ated tirepr essur eloss warning
sy stem.
V V
ehicles wit ehicles
withtir h
tir epr e
pr essur essur
emonit e
monit or or
ing sy ing
syst st
em: em:
MOExt ended tires ma yonl ybe used inconjunc-
tion withan activ ated tirepr essur emonit oring
sy stem.
If apr essur eloss warning messa geappear sin the
dr iver's displa y,proceed asfollo ws :
R Chec kth etir efo rdamag e. 274274
Br
eakdo wnassist ance

R
Ifdr ivi ng on, obser vethefo llo wing notes.
Dr Dr
iving dist ivi
ng distance possibl ein emer g ance
possibl ein emer gency mode ency
mode
aTer aTer
t t
he pr he
pressur essur
eloss w e
loss war ar
nin g: nin
g: Load
condition Load
condition Dr Dr
iving dist ivi
ng distance possi- ance
possi-
ble inemer g ble
inemer gency mode ency
mode
Pa rtiall yladen 50miles (80km)
Fu lly laden 19miles (30km) The
driving distance possible inemer gency mod e
ma yva ry depending onthedr iving style. Obser ve
th emaximum permissible speedof50 mph
(80 km/h ).
If atir ehas gone0at and cann otbe replaced with
an MOExt ended tire, youcan useast andar dtir e
as ate mp orarymeasur e. SS
t t
or or
ag ag
elocation oft e
location ofthe TIREFIT kit(no he
TIREFIT kit(no tplug-i n t
plug-i n
h h
ybr ybr
id) id)
The
TIREFIT kitislocat edunder thetrunk 0oor . 1
Tire sealan tbo ttle
2 Tire in0 ation com pressor
Depending onthemodel, theTIREFIT kitmayalso
be locat edinother places underthetrunk 0oor . Using
t Using
the TIREFIT kit he
TIREFIT kit RR
eq eq
uir uir
ed t ed
tools: ools:
R Tire sealan tbo ttle
R TIREFIT sticke r
R Sticke rwit hde tails ofthemaximum permissi-
ble speed
R Tire in0 ation com pressor R
Gloves
TIRE FITkitstor ag eloc ation: (/ page275)
Yo ucan useTIREFIT tiresealant toseal perfora -
tion damageof up to0.16 in(4 mm) ,par ticular ly
th ose inthetir econt actsurface. Youcan use
TIREFIT inoutside temp eratur esdown to-4°F
(-20° C). &
W W
ARNING ARNING
Riskofacc ident whenusing
tir esea lant
The tiresea lant maybe unabl eto seal thetir e
pr oper ly,especi allyin thefo llo wing cases :
R Ther ear elar ge cuts orpunct ures inthe
tir e(la rger than damag epr ev iousl ymen-
tioned)
R The wheel rims have been damag ed
R ATer journeys wit hve ry low tirepr essur e
or wit h0at tires #
Donotcontinue driving. #
Consult aqua li/ed specialist workshop. Br
eakdo wnassis tance
275 275

&
W W
ARNI NG ARNI
NGRisk ofinjur yand poisoning
fr om tiresea lant
The tiresea lant isha rm ful and causes irrita -
tion. Donotallo witto come intocont actwith
th eskin, eyes orclo thing, and donotsw allo w
it. Do notinhale tiresealant fumes.Keep the
tir esea lant awayfrom childr en.
If yo ucome intocont actwithth etir esealant,
obser vethefo llo wing: #
Rinse o.thetir esealant from your skin
immediat elyusing water. #
Iftir esealan tget sint oyo ur eyes, thor -
oughl yrinse outtheey es using clean
wa ter. #
Iftir esealan thas been swallo wed,imme-
diat elyrinse outthemout hth or oughl y
and drink plenty ofwa ter. Do notinduce
vo mitin gand seek medical attenti on
immediat ely. #
Chang eout ofanyclo thes cont aminat ed
wit htir esealant immediat ely. #
Ifalle rgic reactio nsoccur ,seek medic al
att ent ion immed iately. *
N N
O O
TE TE
Overhea ting duetothetir ein0 ation
com pressor running toolong #
Donotru nth etir ein0 ation compressor
fo rlong erthan tenminut eswithou tint er-
ru ption. Com
plywit hth emanuf acturer'ssafetyno teson
th estic keron thetir esealant bottle.
Ha ve thetir esealant bottle replaced inaqua li/ed
specialist workshop every/v eye ars. #
Donotre mo veanyfo re ign objects whichha ve
ent ered thetir e. #
Remo vesticker 1 from thetir ein0 ation com-
pr essor housing anda1x itto theinst rument
clust erwit hin thedr iver's /eld ofvision. #
Remo vesticker 2 from thetir esealant bottle
and a1x itnear theva lve on thewheel with
th efa ulty tire. 276276
Br
eakdo wnassist ance

Obser
vethefo llo wing notesif yo uwa nttoreplace
th ebatt eryyo urself:
R Alwaysre place afa ulty batterywit habatt ery
whic hmee tsthespeci/c vehicle requ ire-
ments.
The vehicle iseq uipp edwitha0eece battery.
Fu llve hicle funct ionalityis onl yguar anteed
wit ha0eece battery. Fo rsaf etyre asons,
Mer cedes- Benzre commen dsthat youonl y
use batteries whic hha ve been tested and
ap pro vedfo ryo ur vehicle byMer cedes-Be nz.
R Usede tach able partssuc has vent hos es,
elbo w/tting sor term inal covers from thebat-
te ry whic his to be replaced.
R Mak esur eth at theve nt hos eis alw ayscon-
nect edtotheor iginal opening ontheside of
th ebatt ery. Ins
tallan yex istin gor supplied cellcaps.
Ot her wise, gases orbatt eryacid could
escape.
R Mak esur eth at detach able partsarere con-
nect edinthesame way. TT
o o
w st w
star ar
tin gor to ting
ortowing away wing
away PP
er er
mitt mitt
edto ed
towing met wing
methods (nonplug-inh hods
(nonplug-inhybr ybr
id) id)
Mer
cedes- Benzre commen dstranspor tingyo ur
ve hicle inthecase ofabr eakdo wn,rather than
to wing itawa y.
Fo rto wing ,use ato w rope ortow bar withbo th
axles onthegr ound. Donotuse tow bar systems. &
W W
AR NIN G AR
NIN GRisk ofacciden twhen towing
wit hsteer ing wheel locking
When thesteer ing wheel locking iseng aged,
yo ucan nolong ersteer theve hicle. #
Alwaysswitc hon theve hicle when tow-
ing withato w rope ortow bar . *
N NO O
TE TE
Damag eto theve hicle duetotow-
ing awa yin cor rectl y #
Obser vetheinst ruction sand noteson
to wing away. 284284
Br
eakdo wnassist ance

#
Atowing speed of30 mph(5 0km /h)
mu stno tbe exceeded. #
Atowing distance of30 mile s(50 km)
must notbe exceeded. &
W W
AR NIN G AR
NIN GRisk ofacciden twhen towing a
ve hicle whichis toohea vy
If th eve hicle tobe tow- star tedor towe dawa y
is hea vier than theper missible gross mass of
yo ur vehicle, thefo llo wing situations can
occur :
R The towing eyema ybecome detach ed.
R The vehicle/ trailer combin ationmay
sw erve orrollo ver. #
Beforeto w- star ting ortowing away,
ch eckif th eve hicle tobe tow- star tedor
to we dawa yex ceeds theper missible
gr oss mass. If
ave hicle mustbe tow- star tedor towe dawa y,its
per missible gross mass mustnotex ceed theper -
missible gross mass oftheto wing vehicle. #
Informatio non theper missible gross mass of
th eve hicle canbefound ontheve hicle identi-
/cation plate(/ page327) . #
V V
ehicle swit ehicle
swit haut h
aut omati ctr omati
ctransmi ssion: ansmi
ssion:Do not
open thedr iver's door orfront passeng er
door ;th etransmission other wise automati -
call yshiTs toposition 005D. #
Inst alltheto wing eye(/ page288). #
Fasten theto wing device .
* N NO O
TE TE
Damag edue toincor rect conn ec-
tion oftheto w bar #
Onlyconn ecttheto w rope ortow bar to
th eto wing eyes. #
Deactiv ateth eaut omatic locking mechanism
(/ page72). #
Donotactiv ateth eHOLD function . #
Deactiv ateth eto w- awa yalar m(/ page86). #
Deact ivat eAc tiveBr ak eAssi st(/ page179). #
V V
ehic leswit ehic
leswithaut h
aut oma tictr oma
tictransm ission: ansm
ission: ShiTto
position 005C. #
Release theelectr icpar king brak e. #
Switc hon theve hicle; thesteer ing wheel lock-
ing mayot her wise engage. &
W W
AR NIN G AR
NIN GRisk ofacciden tdue tolimit ed
saf ety-re lat ed functions during theto wing
pr ocess
Saf ety-re lat ed functions arelimit edorno lon-
ge rav ailabl ein thefo llo wing situations:
R The vehicle isswitc hedo..
R The brak esy stem orpowe rst eer ing sys-
te m ismalfun ctioning.
R The ener gysuppl yor theon-boar delectr i-
cal system ismalfunctionin g.
When your vehicle istowe daw ay,signi/cantl y
mor ee.or tma ybe requ ired tosteer and
br ak eth an isnor mall yre qu ired. #
Use ato w bar . #
Mak esur eth at thesteer ing wheel can
mo vefreel ybe fore towing theve hicle
awa y. 286286
Br
eakdo wnassist ance

*
N N
O O
TE TE
Dam agedue toexcessiv etractiv e
po we r If
yo upull awayshar ply, thetractiv epo we r
ma ybe toohigh andtheve hicles couldbe
damag ed. #
Pullawa yslo wly and smoo thly. Loading
t Loading
the v he
vehic lef ehic
lefor tr or
transpo rt anspo
rt #
Obser vetheno teson towing away
( / pag e285). #
Connect theto wing device totheto wing eye
in order toload theve hicle. #
V V
ehicle swit ehicle
swit haut h
aut omati ctr omati
ctransmi ssion: ansmi
ssion:ShiT
th eaut omatic transmission toposition 005C.
% V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
The
aut omatic transmission maybe lockedin posi-
tion 005Dintheev ent ofdamag eto theelectr i-
cal system. ToshiT to005C ,pr ov ide theon-
boar delectr icalsystem withpo we r
( / pag e282). #
Load theve hicle ontoth etranspor ter. #
V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
ShiT
th eaut omatic transmission toposition 005D. #
Use theelectr icpar king brak eto secur eth e
ve hicle agains tro lling away. #
Onlysecur eth eve hicle bythewheels.
V V
ehicles wit ehicles
withadap h
adap tiv tiv
edam e
dam ping adjus ping
adjustmen t tment
&
W W
ARNIN G ARNIN
GRisk ofan accident whentrans-
por ting vehicles withadap tivedam ping
adju stmen t
When transpo rting vehicles withadap tive
dam pingadju stmen t,theve hicle/ trailer com-
bin ation maybeg into rock and star tto skid. #
Load theve hicle correctl yont oth e
tr ansp orter. #
Sec ureth eve hicle onallfour wheels
wit hsuit able tensio ning straps . #
Donotex ceed themaximum permissible
speed of35 mph(6 0km /h)wh en tran s-
po rting. *
N NO O
TE TE
Damag eto theve hicle from secur -
ing itinco rrectl y #
ATer loading, theve hicle mustbe
secur edon allfour wheels. Other wise,
th eve hicle could bedamag ed. #
Amin imum distance of8in (20 cm)
upw ards and 4in (10 cm) down wards
must bekept tothetranspor tplatf orm. #
Secur eth eve hicle onallfour wheels aTer
loading.
4MA 4MA
TICv TIC
vehicles/v ehicles/v
ehicleswit ehicles
withaut h
aut omatic tr omatic
trans- ans-
mission mission Br
eakdo wnassist ance
287 287

NN
o o
t t
es on noise orunusual handling c es
on noise orunusual handling char har
act act
er er
is- is-
tics tics
Mak esur eth er ear eno vibr ations, noisesor
unusual handling charact eristics when theve hicle
is in mo tion .This mayind icat eth at thewheels or
tir es aredamag ed.Hidden tiredamag ecould also
be causing theunusual handling charact eristics.
If yo ususpec tth at atir eis malf unct ioning,re duce
yo ur speed immediat elyand have thetir es and
wheels checkedat aqu ali/ed special istwo rkshop. NNo o
t t
es on r es
on regu larl egu
larly insp ectingwheels andtir y
insp ectingwheels andtires es
&
W W
AR NIN G AR
NIN GRisk ofinjuryth ro ugh damag ed
tir es
Damag edtires can cause tirepr essur eloss. #
Chec kth etir es regula rly fo rsigns of
damag eand replace anydamag edtires
immediat ely. &
W W
ARNI NG ARNI
NGRisk ofhydroplaning dueto
insu1c ienttiretread
Ins u1cient tiretread willresult inreduced tire
gr ip.
In hea vyrain or slush therisk ofhydroplaning
is incr eased, inpar ticular wherespeed isno t
adap tedto suit theconditions. #
Thus, youshould regula rly ch eckth e
tr ead depthand thecondition ofthe
tr ead across theentir ewidt hof all tires.
Minimum tread depthfor:
R Sum mertir es :00CE in(3 mm )
R M+S tires :00CFin (4mm ) #
Forsaf etyre asons, replace thetir es
bef oreth eleg ally-pr escr ibed limitforth e
minimum tread depthisreac hed. Car
ryout thefo llo wing checks on allwheels regu-
lar ly,at leas tonce amonth oras requ ired ,fo r
ex am ple, prior toalon gjou rney ordrivin go.-
ro ad:
R Chec kth etir epr essur e(/ page293). R
Visuall yinsp ectwheels andtires fordamag e.
R Chec kth eva lve caps.
R Visual checkof thetir etread depthand the
tir econt actsurface acr oss theentir ewidt h.
The minimum tread depthforsummer tires is
00CE in(3 mm) andforwint ertires 00CF in(4 mm). Six
mar ks1 showwher eth ebar indicat ors
(ar row) areint egratedint oth etir etread. Theyar e
visible onceatir etread depthofappr oximat ely
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