2023 MERCEDES-BENZ A CLASS trunk

Openin
g Openin
g #
LiT carpet1 inthedir ection ofthear ro w. #
Loosen screws2 and remo vethefuse box
lid from theto p.
Closing Closing
#
Place thelid on thefuse box. #
Tight enscrews 2. #
Foldbac kth ecar pet. Opening
andclosing t Opening
andclosing the fuse bo he
fuse boxin t x
in the tr he
trunk unk
Obser
vetheno teson elect rical fuse s
(/ page289). #
Open thetrunk 0oor . Fu
se box1 islocat edinthecent erunder neath
th etrunk 0oor . Br
eakdo wnassist ance
291 291

R
Rear wheels wearmor ein thecent erofthe
tir e
Do notdr ive wit htir es that have toolittle tread
dep th.This signi/ can tly re duces traction onwet
ro ads (hydr oplan ing).
On vehicles that have thesame sizefront and rear
wheels, rotate thewheels accordingtotheint er-
va ls in thetir emanuf acturer'swarrant ybook in
yo ur vehicle docume nts. Ifth is is no tav ailabl e,
ro tate thetir es every3,000 to6,000 miles
(5,000 to10,000 km),depending onthewe ar.
Ensu rethat thedir ection ofrotation ismai n-
ta ined.
Obser vetheinst ruction sand safetyno teson
"Chang ingawheel" whendoingso (/ page316). NNo o
t t
es on st es
on stor or
ing wheels ing
wheels When
stor ing wheels, observethefo llo wing notes:
R ATer remo vingwheels, stor eth em inacool,
dr yand prefer abl ydar kplace.
R Protect thetir es from cont actwithoil, grease
or fuel. OvOv
er er
vie vie
wof t w
of the tir he
tire-c e-c
hang hang
et e
tool kit ool
kit *
N NO O
TE TE
Mer cedes- AMGvehicles #
Obser vetheno tesin theSupplement.
Yo ucould other wise failto recogn ize
dang ers. Apar
tfr om some countr y-speci/c variant s,vehi-
cles areno teq uipp edwithatir e-c hang eto ol kit.
Fo rmor einf ormation onwhic htir e-c hanging tools
ar ere qu ired and appr ovedfo rper form ing awheel
ch ang eon your vehicle, consu ltaquali/ed spe-
cialis two rkshop.
Yo ure qu ire th efo llo wing tools, forex am ple, to
ch ang eawheel:
R Jack
R Choc k
R Lugwr enc h
R Alignme ntbolt
The tire-c hangeto ol kit islocat edintool bag 1
in thetrunk . %
Depending ontheve hicle equipme nt,th eto ol
bag maybe locat edatother posit ionsin the
tr unk . The
tool bag cont ains:
R Jack
R Gloves
R Lugwr enc h
R Alignme ntbolt
R Folding choc k
R Ratche tfo rjac k Wheels
andtires
315 315

#
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

#
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

R
Screw theva lve cap ontoth eva lve.
Obser vethefo llo wing noteson installing anemer -
ge ncy sparewheel:
R The maximum permissibl espeed withan
emer gency sparewheel installed is50 mph
(80 km/h ).
R Donoteq uip theemer gency sparewheel with
sno wch ains.
R Replace theemer gency sparewheel aTersix
ye arsat thelat est, rega rdless ofwe ar.
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur eas
necessar y.
% The speci/ed tirepr ess ureis stat ed on the
label oftheemer gency sparewheel.
% V V
ehicle swit ehicle
swit hatir h
atir epr e
pr essur essur
eloss w e
loss war ar
nin gsy nin
gsy s- s-
t t
em: em:
Ifan emer gency sparewheel isinst alled,
th etir epr essur eloss warning system canno t
function reliabl y.Onl yre star tth esy stem
ag ain when theemer gency sparewheel has
been replaced withane wwheel.
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:
Ifan emer gency sparewheel isinst alled, th
etir epr essur emonit oring system canno t
function reliabl y.Fo ra few minut esaTer an
emer gency sparewheel isins talled, thesy s-
te m ma yst ill displa yth etir epr essur eof the
re mo vedwheel. Onlyre star tth esy stem again
when theemer gency sparewheel hasbeen
re placed withane wwheel.
Be sureto also obser vethefo llo wing further rela-
te dsubjects:
R Noteson tirepr essur e(/ page293)
R Tire and Loadi ngInformatio nplacar d
(/ page300)
R Tire pressur eta ble (/ page295)
R Noteson installing tires (/ page311)
R Inst alling anemer gency sparewheel
(/ page316) In0at
ing In0at
ingt t
he emer g he
emer gency spar ency
sparewheel e
wheel *
N NO O
TE TE
Overheatin gdue tothetir ein0 ation
com pressor running toolong #
Donotru nth etir ein0 ation compressor
fo rlong erthan tenminut eswithou tint er-
ru ption. RR
eq eq
uir uir
ements: ements:
Com plywit hth emanuf acturer'ssafetyno teson
th estic kerof theemer gency sparewheel andon
th etir ein0 ation compressor . #
Remo vethestic kerwit hth elabel 50mph
(80 km/h )fro mthetir ein0 ation compressor
housing anda1x itto theinst rument cluster
wit hin thedr iver's /eld ofvision. #
Remo vethetir ein0 ation compressor from the
st or ag ewe llunder thetrunk 0oor
(/ page275). 322322
Wheels
andtires

1
Front roof area
2 Rear roof area
3 Rear fender s
4 Trunk lid
On vehicles withapanor amicslidingsunr oof,
ins talling anant enna tothefront orrear roof area
is no tper mitt ed. On
there ar fender s,itis recommen dedthat you
inst alltheant enna ontheside oftheve hicle clos-
es tto thecent erofthero ad.
Use Tech nica lSp eci /cation ISO/T S2160 9(R oad
Ve hicles –"EMC sfo rinst allation ofaTer market
ra dio freq uency transmittin gequipment") when
re tro/tti ngtwo-wa yra dios. Complywit hth eleg al
re qu irements forde tach able parts.
If yo ur vehicle hasinstalling fortw o-w ayradio
eq uipment, usethepo we rsuppl yand antenna
connect orspr ov ided inthepr e-ins tallation.
Obser vethemanuf acturer'ssupplements when
inst alling.
T T
w w
o-w a o-w
ay r y
radio tr adio
transmission output ansmission
output
The maximum transmission output(PEAK) atthe
base oftheant enna must notex ceed theva lues in
th efo llo wing table. F F
r r
eq eq
uency bandandmaximum tr uency
bandandmaximum transmission out- ansmission
out-
put put
FF
r r
eq eq
uency band uency
band Maximumtr Maximum
transmis- ansmis-
sion output sion
output
Shor twa ve
3 -54 MHz 100
W
4 m freq uency band
74 -88 MHz 30
W
2 m freq uency band
144 -174 MHz 50
W
Te rrestr ialTrunk ed
Ra dio (TETRA )
380 -460 MHz 10
W
70 cm freq uency band
420 -450 MHz 35
W
Tw o-w ayradio
(2G/3G/4G) 10
W Te
ch nica ldat a
325 325

The
follo wing canbeused intheve hicle without
re str iction s:
R Two-w ayradios withamaximum transmission
output ofup to100 mW
R RFtransmitt erswit htransmitt erfreq uencies in
th e380 -410 MHz freq uency bandanda
maximum transmission outputofup to2W
(TETRA)
R Mobile phones (2G/3G/4G)
Ther ear eno restr iction swh en position ing the
ant enn aon theoutside oftheve hicle forth efo l-
lo wing freq uency bands:
R Terrestr ialTrunk edRadio (TETRA )
R 70cm freq uency band
R 2G/3G/4G RR
egulat egulat
or or
yr y
radio adio
identi/ cation identi/
cation andnot and
notes es
RR
egulat egulat
or or
yr y
radio adio
identi/ cation identi/
cation ofsmall com of
small compo- po-
nent s nent
s Manuf
acturerinformation aboutradio-based vehi-
cle com pone ntscan befound using theke y
phr ase "Regulat oryra dio identi/ cation"in theDig- it
al Oper ator's Manual intheve hicle, ontheInt er-
ne tand intheapp. RR
egulat egulat
or or
yr y
radio adio
ident i/cation ident
i/cation–Indonesia –
Indonesia Manuf
acturerinformation aboutradio-based vehi-
cle com pone ntscan befound using theke y
phr ase "Regulat oryra dio identi/ cation –Indone-
sia" intheDigit alOper ator's Manual intheve hi-
cle, ontheInt erne tand intheapp.
% These areno tsmall components. Information
about smallcomponents canbefound using
th eke yphr ase "Reg ulat oryra dio identi/ cation
of small component s". InfInf
or or
mation oninst mation
oninstallation clear allation
clearances ances
Inf
ormation oninstallation clearances ofwir eless
ve hicle compone ntscan befound using theke y
phr ase "Inst allation clearances" intheDigit al
Oper ator's Manual intheve hicle, ontheInt erne t,
and intheapp. FF
ur t ur
ther her
com com
ponen t-speci/c ponen
t-speci/c inf inf
or or
mation mation
Fu
rther com ponent-speci/c informatio ncan be
fo und using theke yphr ase "fur ther com ponen t-
speci/c information" intheDigit alOper ator's
Manual intheve hicle, ontheInt erne tand inthe
app. 326326
Te
ch nica ldat a