2023 MERCEDES-BENZ A CLASS wheel bolts

%
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

PrPr
epa r epa
ring t ing
the v he
vehi cle f ehi
cle for awh eel c or
awh eel cha nge ha
nge RR
eq eq
uir uir
eme nts: eme
nts:
R The vehicle isno ton aslope.
R The vehicle ison solid ,non -slipper yand leve l
gr ound.
R The requ ired tire-c hang eto ol kit isavailabl e.
% Ifyo ur vehicle isno teq uipp edwithth etir e-
ch ang eto ol kit, consult aqu ali/ed special ist
wo rkshop to/nd outabou tsui table tools. #
Appl yth eelectr icpar king brak emanuall y. #
Movethefront wheels tothestr aight-ahead
position. #
V V
ehicles wit ehicles
withaut h
aut omatic tr omatic
transmission: ansmission:
ShiTto
position 005D. #
Switc ho. theve hicle. #
Mak esur eth at theve hicle cannotbe star ted. #
Place choc ks orother suitable items underthe
fr ont and rear ofthewheel that isdiag onal ly
opposit eth ewheel youwish tochang e. #
Ifnece ssary,remo vethewheel trim/hub caps
(/ page316). #
Raise theve hicle (/page317). RR
emo emo
vingand inst vin
gand installin gt allin
gthe wheel tr he
wheel trim/ hub caps im/
hub caps RR
eq eq
uir uir
emen ts: emen
ts:
R The vehicle isprepar edfora wheel chang e
(/ page316) .
Wheel tr Wheel
trim im
The wheel trim covers thewheel boltsonvehicles
wit hsteel wheels. Beforeunscr ewing thewheel
bolts, remo vethewheel trim. #
T T
o r o
remo v emo
ve: e:
using both hands, carefull yre ac h
int otw owheel trim open ingsand remo vethe
wheel trim. Plas Plas
tichub cap tic
hub cap #
T T
o r o
remo v emo
ve: e:
tur nth ecent ercoverof thehub
cap count er-cloc kwise andremo vethehub
cap. #
T T
o inst o
inst all: all:
mak esur eth at thecent ercoverof
th ehub capistur ned count er-cloc kwise. #
Positi on thehub capand turnth ecent ercover
cloc kwise untilth ehub capengages physicall y
and audibl y.
Alum inum hubcap Alum
inum hubcap #
T T
o r o
remo v emo
ve: e:
pos itionso cket 2 from thetir e-
ch ang eto ol kit on hub cap1. #
Positi on wheel wrenc h3 onsoc ket2. 316316
Whee
lsand tires

#
Using wheel wrenc h3, turnhub cap1
coun ter-cloc kwise andremo veit. #
T T
o inst o
inst all: all:
follo wtheinst ruction sabo vein
re ve rseor der .
% Speci/ ed Speci/
edtight tight
ening t ening
torq orq
ue: ue:
18lb-T (25Nm) . RR
aising t aising
the v he
vehicle whenc ehicle
whenchanging awheel hanging
awheel RR
eq eq
uir uir
ements: ements:
R Ther ear eno per sons intheve hicle.
R The vehicle hasbeen prepar edfora wheel
ch ang e(/ page316) .
R The wheel trims and hub caps have been
re mo ved(/ page316).
Im por tant noteson usin gth ejac k:
R Use onlya ve hicle-spe ci/cjackth at has been
appr ovedby Mer cedes-Be nztoraise theve hi-
cle.
R The jackis onl ydesig nedforra ising andhold-
ing theve hicle fora shor ttime while awheel
is being chang edand notfo rmaint enance
wo rkunder theve hicle. R
The jackmus tbe placed ona/r m, 0at and
non -slipsur face. Ifnecessar y,use alar ge,0at,
load- bearing,non -slipund erlay.
R The foot ofthejac kmust bepositioned verti-
call yunder thejac ksuppor tpoint. Ru
les ofconduct whentheve hicle israised:
R Neverplace your hands orfeet under theve hi-
cle.
R Neverlie under theve hicle.
R Donotst ar tth eve hicle anddonotre lease the
electr icpar king brak e.
R Donotopen orclose anydoor sor thetrunk
lid. #
Using thelug wrenc h,loosen thewheel bolts
on thewheel youwish tochang eby about one
fu lltur n.Do notunscr ewthescr ewscom-
ple tely. Wheels
andtires
317 317

#
Turn ratche t3 cloc kwiseuntil support2
sits com pletely on jacksuppor tpoint 1and
th ebase ofthejac klies evenlyon thegr ound. #
Turn ratche t3 until thetir eis raised amaxi-
mum of1.2 in(3 cm) from thegr ound. #
Loosen andremo vethewheel (/page319). RR
emo emo
ving awheel ving
awheel RR
eq eq
uir uir
ements: ements:
R The vehicle israised (/page317).
* NO NO
TE TE
Mer cedes- AMGvehicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. When
chang ingawheel, avoidappl ying anyfo rc e
to thebr ak ediscs, asthis could impair theleve lof
comf ortwhen braking. *
N NO O
TE TE
Damag eto thre adin gfrom dirton
wheel bolts #
Donotplace wheel boltsin sand oron a
dir tysur face. #
Unscr ew theupper mostwheel boltcom-
ple tely. #
Screw alignme ntbolt 1intoth eth re ad
ins tead ofthewheel bolt. #
Unscr ewthere mainin gwheel boltscom-
ple tely. #
Remo vethewheel and,ifnecessar y,stor eit in
th etrunk . #
Noteson remo vingan emer gency sparewheel
(/ page321). Ins
t Ins
tallin gane allin
gane wwheel w
wheel RR
eq eq
uir uir
emen ts: emen
ts:
R The wheel tobe chang edisremo vedand the
alig nme ntbolt isscr ewed in(/ page319).
* NO NO
TE TE
Mer cedes- AMGvehicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. &
W W
AR NIN G AR
NIN GRisk ofacciden tfr om losin ga
wheel
Oiled, greased ordamag edwheel bolt/wheel
nut thre ads orwheel hub/wheel mounting
bolt thre ads can cause thewheel bolts/wheel
nuts tocome loose.
As are sult ,yo ucould loseawheel whiledriv-
ing. #
Neveroil orgrease theth re ads. Wheel
sand tires
319 319

#
Intheev ent ofdamag eto theth re ads,
cont actaqu ali/ed special istwo rkshop
immed iately. #
Have thedamag edwheel boltsordam-
ag ed hub thre ads replaced. #
Donotcontinu edr iving . #
Obser vetheinf ormation onthech oice oftires
(/ page311).
Fo rtir es withaspeci/ eddirection ofrotation, an
ar ro w on theside wallof thetir eindicat esthecor -
re ct directio nof rotation. Observe thedir ection of
ro tation wheninst alling. #
Slide thewheel tobe mount edont oth ealign-
ment boltandpush iton. #
Obser vetheno teson installing anemer gency
spa rewheel (/page321) . &
W W
AR NIN G AR
NIN GRisk ofinjuryfrom tighteni ng
wheel boltsand nuts
If yo utight enthewheel boltsorwheel nuts
when theve hicle israised, thejac kcould tip. #
Onlytight enwheel boltsorwheel nuts
when theve hicle ison thegr ound. #
Obser vetheinst ruction sand safetyno teson
"Chang ingawheel" (/page311) . #
Forsaf etyre asons, onlyuse wheel boltswhic h
ha ve been approved byMer cedes-Be nzand
fo rth ewheel inqu estion .
* N NO O
TE TE
Damag eto paintw orkof thewheel
ri m when screwing inthe/r st wheel bolt If
th ewheel hastoomuc hpla ywhen screwing
in the/r st wheel bolt,th ewheel rim paint can
be damag ed. #
Press thewheel /rml yag ainst thewheel
hub when screwing inthe/r st wheel
bolt. #
Tight enthewheel boltsevenl yin adiagonal
patt ernin theor der indicat eduntil they are
/ng er-tight . #
Unscr ew and remo vethealignment bolt. #
Tight enthelast wheel boltuntil itis /n ger-
tigh t. #
Lowe rth eve hicle (/page320). Lo
w Lo
wer er
ing t ing
the v he
vehicle ehicle
aTer aTer
awheel c a
wheel chang e hang
e RR
eq eq
uir uir
emen ts: emen
ts:
R The newwheel hasbeen installed
(/ page319). #
T T
o low o
lower t er
the v he
vehicle: ehicle:
placethera tche tont o
th ehe xagon nutofthejac kso that theletter s
"AB" arevisible andturncount er-cloc kwise. 320320
Wheels
andtires

#
Tight enthewheel boltsevenl yin adiagonal
patt ernin theor der indicat ed1 to5 with
an initial maximum forc eof 59 lb-T (80Nm). #
Tight enthewheel boltsevenl yin adiagonal
patt ernin theor der indicat ed1 to5 with
th especi/ed tightening torq ue of96 lb-T
(1 30 Nm) . &
W W
AR NIN G AR
NIN GRisk ofacc iden tdu eto incor -
re ct tightenin gto rq ue
Th ewheels couldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed torq ue . #
Ensur eth at thewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue . #
Ifyo uar eno tsur e,do notmo vetheve hi-
cle. Contact aqu ali/ed special istwo rk-
shop andhave thetight ening torq ue
ch eckedimmediat ely. #
Chec kth etir epr essur eof thene wly installed
wheel andadjust itifnecessar y. %
The follo wing does notappl yif th ene wwheel
is an emer gency sparewheel. #
V V
ehicle swit ehicle
swit htir h
tir epr e
pr essur essur
eloss w e
loss war ar
nin gsy nin
gsy s- s-
t t
em: em:
Restar tth etir epr essur eloss warning
sy stem (/ page299). #
V V
ehicles wit ehicles
withatir h
atir epr e
pr essur essur
emonit e
monit or or
ing sy ing
sys- s-
t t
em: em:
Restar tth etir epr essur emonit oring sys-
te m (/ page298). Emer
g Emer
gency spar ency
sparewheel e
wheel NNo o
t t
es on t es
on the emer g he
emer gency spar ency
sparewheel e
wheel &
W W
ARNIN G ARNIN
GRisk ofaccident causedby
incor rect wheel andtiredimen sions
The wheel ortiresizes andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydi.er .The emer -
ge ncy sparewheel orspar ewheel cansigni/-
cantl yim pair drivi ng charact eristics ofthe
ve hicle.
To prev ent hazar dous situations: #
Drive car efull y. #
Neverinst allmor eth an one emer gency
spa rewheel orspar ewheel that di.er s
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel brie0y . #
Donotdeacti vate ESP ®
. #
Have theemer gency sparewheel or
spar ewheel ofadi.er entsize replaced
at thenear estquali/ed special istwo rk-
shop. Thenewwheel mustha ve thecor -
re ct dimen sions. %
The emer gency sparewheel issecur edinthe
emer gency sparewheel baginthetrunk .
Obser vethefo llo wing noteson remo vingan emer -
ge ncy sparewheel:
R Beforestow ing theemer gency sparewheel,
mak esur eth er eis no airleT inthetir e.
If necessar y,allo wtheair toescape.
R T T
o r o
release airfr elease
airfrom t om
the tir he
tire: e:
remo vetheva lve
cap ofthetir e.
R Press down theme talinser tin theva lve using
a point edobject, e.g.apen. Wheels
andtires
321 321