2023 MERCEDES-BENZ A CLASS Owners Manual

SS
t t
ep 2 ep
2 ExEx
am am
ple 1 ple
1 Ex Ex
am am
ple 2 ple
2
Number ofpeople intheve hicle (driver and occu-
pant s) 51
Dist ribution oftheoccupants Front: 2
Re ar:3 Fr
ont: 1
We ight ofoccupa nts Occupant1:150 lbs(68 kg)
Occupa nt2:180 lbs(82 kg)
Occupa nt3:160 lbs(73 kg)
Occupa nt4:140 lbs(63 kg)
Occupa nt5:120 lbs(54 kg) Occupa
nt1:200 lbs(91 kg)
To talwe ight ofall occupa nts 750lbs(340 kg) 200lbs(91 kg) SS
t t
ep 3 ep
3 ExEx
am am
ple 1 ple
1 Ex Ex
am am
ple 2 ple
2
Pe rm issible load(maximum gross vehicle weight
ra ting from theTire and Loadi ngInformatio nplac-
ar dmin usthegr oss weight ofall occupa nts) 1500
lbs(680 kg)00F8750 lbs(340 kg)=750 lbs
(340 kg) 1500
lbs(680 kg)00F8200 lbs(91 kg)=1300 lbs
(589 kg) Wheels
andtires
303 303

TT
ir ir
e labeling e
labeling OvOv
er er
vie vie
wof tir w
of tirelabeling e
labeling 1
Uniform Tire Quality Grading Standar ds
2 DOT(Depar tmentof Transpo rtatio n),(TIN)
Ti re Identi/cation Number
3 Maxi mum tireload (/page306 )
4 Maxi mum tirepr essur e(/ page306 ) 5
Man ufactu rer
6 Tire charact eristics (/page307)
7 Tire size desig nation,load- bearingcapacit y,
speed rating andload index(/ page307)
8 Tire nam e
% The datash ow nin theillust ration isex am ple
dat a. TT
ir ir
e Quali tyGr e
Quali tyGradin g adin
g In
accor dance withth eUS Depar tment ofTrans-
por tation's "Uniform Tire Quality Grading Stand-
ar ds", tiremanu factur ersar ere qu ired tograde
th eir tires on thebasis ofthefo llo wing thre eper -
fo rm ance fact or s: 1
Tread weargrade
2 Tractio ngr ade
3 Temp eratur egr ade
% The datasho wnintheillust ration isex am ple
dat a.
% The classi/cation isno tleg allyst ipul ated for
Canada, butitis ge ner allyst at ed.
T T
r r
ead w ead
wear gr ear
grade ade
The treadw eargrade isacom parativ era ting
bas edon thewe arrate of thetir ewhen tested
und ercontroll edcond itio ns on asp ec i/ed govern-
ment test course .Fo rex am ple, atir egr aded 150
wo uld wearone andone-half (1\1/2\)time sas 304304
Wheel
sand tires

we
llon thego vernment courseasatir egr aded
100.
The relativ eper form ance oftires depen dsupon
th eactual conditions oftheir use, howev er,and
ma ydepar tsign i/can tly from thenor mdue tovar-
iations indriving habits, service practices anddif-
fe re nces inroad charact eristics and climat e.
T T
r r
actio ngr actio
ngr ade ade
&
D D
AN AN
GER GER
Riskofacciden tdue toinade-
qu atetractio n
The tractio ngr ade assign edtothis tireis
based onstraight-ahead braking traction
te sts . #
Alwaysadap tyo ur driving styleand drive
at aspeed tosuit thepr ev ailin gtra1c
and weather cond itions. *
N NO O
TE TE
Damag eto thedr ivet ra in from
wheelsp in #
Avoid wheelspin. The
traction grades, from highe stto lowe st, are
AA ,A, B,and C.Tho segrades repr esent thetir e's
ability tostop onwetpa vement asmeasur ed
under controlled conditi onsonspeci/ed govern-
ment test surfaces ofasphalt andconcr ete. Atir e
mar kedC ma yha ve poor traction perform ance.
T T
em em
per per
atur atur
egr e
gr ade ade
&
W W
AR NIN G AR
NIN GRisk ofacciden tfr om tireove r-
heati ngand tirefa ilur e
Ex cessiv espeed, underin0ation, orexcessiv e
loadin g,eit her separ atelyor incombin ation,
can cause excessiv eheat build-upand possi-
ble tirefa ilur e. #
Obser vethere commen dedtirepr essur e. #
Regula rly ch eckth epr essur eof all the
tir es. #
Adjust thetir epr essur e,ifnecessar y. The
temp eratur egr ades areA (the highe st), B,
and C,repr esentin gth etir e's resis tance tothe
ge ner atio nof hea tand itsability todissipat eheat
when tested und ercontroll edcond itio ns on a
sp ec i/ed indoorla bo ratory test wh eel.Sust ained hi
gh temp eratur ecan cause themat erial ofthe
tir eto deg ener ateand reduce tirelife, and exces-
siv ete mp eratur ecan lead tosudden tirefa ilur e.
The grade Ccor respond sto aleve lof per form -
ance whichall passen gercar tires must meet
under theFe der alMo torSaf etySt andar dNo .
109. Grades Band Arepr esent higher leve ls of
per form ance onthelabor ator yte st wh eelth an
th eminimum requ ired bylaw. DO
T DO
T, T ,
Tir ir
e e
Ident i/cation Ident
i/cationNumber (TIN) Number
(TIN) US
tirere gula tions stipula tethat everytir emanu-
fa ctur eror retread ermus tim print aTIN inor on
th eside wallof eac htir epr oduced. Wheels
andtires
305 305

%
The datash ow nin theimag eis ex am ple data.
The TINisauni queident i/cationnumber toiden-
tify tires and comprises thefo llo wing:
R DO DO
T(Depar T
(Depar tmentofTr tment
ofTranspo rt anspo
rtatio n): atio
n):tiresym-
bol mar ks1 indicating that thetir ecom plies
wit hth ere qu irements oftheUS Depar tment
of Transpo rtatio n.
R Man uf Man
ufactur actur
er er
identi/cation identi/cation
code: code:
manufac-
tur eridenti/cation code2cont ains details of
th etir emanuf acturer.Ne wtires have acode
wit htw osymbols. Retread edtires have acode
wit hfo ur symbo ls.Further informatio non
re treade dtir es (/ page311).
R T T
ir ir
e size: e
size: identi/er 3desc ribes thetir esize.
R T T
ir ir
e type code: e
type code: tiretype code 4can beused
by themanuf actureras acode todescr ibe
speci/c charact eristics ofthetir e.
R Manuf Manuf
actur actur
ingdat ing
date: e:
manuf acturingdate5
pr ov ides information abouttheag eof atir e.
The 1stand 2nd positions repr esent thecal-
endar week and the3r dand 4thpositions
st at eth eye ar ofmanu factur e(e.g. "3208 "
re pr esents the32nd week of2008). InfInf
or or
mation ont mation
onthe maximum tir he
maximum tireload e
load %
The datasho wnintheimag eis ex am ple data.
Maxim umtireload 1isthemaximum permissi-
ble weight forwhic hth etir eis appr oved.
Do notove rload thetir es by exceedin gth especi-
/ed load limit. Themaximum permissible loadcan
be found ontheve hicle' sTire and Loadi ngInfor-
matio nplacar don theB-pillar onthedr iver's side
(/ page300). Speci/
cations Speci/
cations f f
or maximum tir or
maximum tirepr e
pr essur e essur
e %
The datasho wnintheillust ration isex am ple
dat a.
Ne verex ceed maximum tirepr essur e1 speci-
/ed forth etir e. Alw aysobser vethere commen -
ded tirepr essur efo ryo ur vehicle when adjusting
th etir epr essur e(/ page295). 306306
Wheels
andtires

InfInf
or or
mati onontir mati
onontirec e
char har
act act
er er
is is
tics tics
%
The datasho wnintheimag eis ex am ple data.
This informatio ndescr ibesthetype oftirecor d
and thenumber oflaye rs inside wall1 and
under tiretread 2. TT
ir ir
e size designation, load-bear e
size designation, load-bearingcapac ity ing
capac ity,speed ,
speed
r r
ating andload index ating
andload index &
W W
ARNIN G ARNIN
GRisk ofinjur yth ro ugh exceed-
ing thespeci/ed tireload-bear ingcapa-
city ortheper missible speedrating
Ex ceed ingthespeci/ed tireload rating orthe
per missible speedrating maylead totiredam -
ag eand tothetir es bur stin g. #
Ther efor e, onl yuse tiretypes andsizes
appr ovedfo ryo ur vehicle model . #
Obser vethetir eload rating andspee d
ra ting requ ired foryo ur vehicle. 1
Firs tle tter( s)
2 Nominal tirewidt hin milli meters
3 Aspe ctratio in%
4 Tire code
5 Rim diame ter
6 Load-be aring inde x
7 Speed rating
8 Load index
% The datasho wnintheillust ration isex am ple
dat a.
Inf ormatio nabout readin gtir edat acan be
obt aine dfrom anyqu ali/ed special istwo rkshop. Wheel
sand tires
307 307

FF
ir s ir
st le t
le tt tt
er(s) er(s)
1 1: :
R Without: passeng ervehicle tires accor dingto
Eur opean manufacturingstandar ds.
R "P": passeng ervehicle tires accor dingto US
manu factur ingstandar ds.
R "LT": light truc ktir es accor dingtoUS manu -
fa ctur ingstandar ds.
R "T": com pact emer gency sparewheels with
high tirepr essur eth at areonl ydesig nedfor
te mp oraryuse inan emer gency .
Aspe ctr Aspe
ctratio atio
3 3: :
Ra tio between tireheigh tand tirewidt hin per cent
(tir eheigh tdivide dby tirewidt h).
T T
ir ir
e cod e e
cod e4 4
(tir (tir
etype ): e
type ):
R "R"radial tire
R "D": bias plytir e
R "B": bias beltedtires
R "ZR": radial tirewit hamaximum speedabove
149 mph(2 40 km/h)(o pt ional) Rim
diame t Rim
diame ter er
5 5: :
The diame terof thebead seat(notth ediame ter
of therim 0ang e).The rim diame teris speci/ edin
inc hes (in).
Load-bear Load-bear
inginde ing
inde x x
6 6: :
Numer icalcode that speci/es themaximum load-
bear ingcapac ityofatir e(e.g. "91"correspond s
to 1356 lbs(615 kg)).
The load-bear ingcapa cityofthetir emust beat
least halfthegr oss axle weight rating ofyour vehi-
cle. Donotove rload thetir es by exceedin gth e
speci/ed loadlimit.
Se ealso:
R Maximu mper missibl eload ontheTire and
Loadi ngInformatio nplacar d(/ page300)
R Maxim umtireload (/page306)
R Load index
Spe edr Spe
edrat ing at
ing 7 7: :
Sp eci/es theappr ovedmaximum speedofthe
tir e. %
Anelec tronic speedlimit erprev ents your
ve hicle from exceedin gaspeed of130 mph
(210 km/h ).
Mak esur eth at your tires have there qu ired speed
ra ting. Youcan obtain information onthere qu ired
speed rating from anaut hor ized Mercede s-Benz
Cent er.
Summer tir Summer
tires es
Inde
x Inde
x Speedr Speed
rating ating
Qu pto 100 mph(1 60 km/h)
Ru pto 106 mph(1 70 km/h)
Su pto 112 mph(1 80 km/h)
Tu pto 118 mph(1 90 km/h)
Hu pto 130 mph(2 10 km/h)
Vu pto 149 mph(2 40 km/h)
Wu pto 168 mph(2 70 km/h)
Yu pto 186 mph(3 00 km/h) 30
8 30
8 Wh
eelsan dtire s

Inde
x Inde
x Speed r Sp
eed ratin g atin
g
ZR ...Y 1
upto186 mph(3 00 km/h)
ZR. ..(..Y )1
over186 mph(3 00 km/h)
ZR 1
over149 mph(2 40 km/h) R
Spe cify ing thespeed rating asthe"ZR" index
in tirecode 4isop tional fortir es up to
186 mph(3 00 km/h).
R Ifyo ur tirecode 4includes "ZR"andther eis
no speed rating 7,/ndout wha tth emaxi-
mum speed isfrom thetir emanuf acturer.
R Ifload-bear inginde x6 and speed rating 7
ar ein brac kets, themaximum speedrating of
yo ur tireis abo ve186 mph(3 00 km/h).To
/nd outthemaximum speed,askthetir eman-
uf actur er. All-w All-w
eat eat
her tir her
tires and wint es
and wintertir er
tires es
Inde
x Inde
x Speedr Speed
rating ating
Q M+S 2
upto100 mph(1 60 km/h)
T M+S 2
upto118 mph(1 90 km/h)
H M+S 2
upto130 mph(2 10 km/h)
V M+S 2
upto149 mph(240 km/h) Wi
nter tires bea rth e004D snow0ak esymbol and
ful/ll there qu irements oftheRu bber Manuf actur-
er sAssociation (RMA)andtheRu bber Association
of Canada (RAC)rega rding thetir etraction on
sno w.
Load inde Load
index x
8 8: :
R Nospec i/cation given: standar dload (SL)tire
R "XL" or"Ex tra Load" :ex tra load tireor rein-
fo rc ed tire
R "Light Load": lightloadtire R
"C", "D", "E":aload rang eth at depen dson the
maximum loadthat thetir ecan carryatacer -
ta in pressur e De/n
ition De/n
itionoft of
ter er
ms f ms
for tir or
tires and loading es
and loading
T T
ir ir
e s e
str tr
uctur uctur
eand c e
and char har
act act
er er
is istics: tics:
descr ibesthe
numb eroflaye rs or thenumber ofrubber -coat ed
belts inthetir econt actsurface and thetir ewa ll.
These aremade ofsteel, nylon, polyester and
ot her materials.
Bar : Bar
:me tric uni tfo rtir epr essur e.14.5038 pounds
per squar einc h(psi) and100 kilopasc al(kP a)is
th eeq uiv alent ofone bar.
DO DO
T(Depar T
(Depar tmentofTr tment
ofTranspo rt anspo
rtatio n): atio
n):DOT-mar ked
tir es ful/ llth ere qu irements ofthe
US Depar tmentof Transpo rtatio n.
Av Av
er er
ag ag
ew e
weight oft eight
ofthe v he
vehicle occupants: ehicle
occupants: the
numb erofvehicle occupan tsforwhic hth eve hicle
is desig ned,mult iplied by150 lb(68 kg).
U Unif nif
or or
m T m
Tir ir
e Quality Gr e
Quality Grading St adin
gSt andar andar
ds: ds:
auni form
st an da rd tograde thequ alit yof tires withre ga rd
1 "ZR" stat ed inthetir ecode.
2 Or "M+S004D" forwint ertires. Wheels
andtires
309 309

to
tread qualit y,tiretracti onand temp eratur e
ch aract eristics. Thequalit ygr adin gassessmen tis
made bythemanuf acturerfollo wing speci/ cations
fr om theU. S. government. Thequalit ygr ade ofa
tir eis im print ed on theside wallof thetir e.
R R
ecommended tir ecommended
tirepr e
pr essur essur
e: e:
there commen ded
tir epr essur eis thetir epr essur especi/ed forth e
tir es mount edtotheve hicle atthefa ct or y.
The tireand informa tion table cont ains there com-
mende dtir epr essur esforcold tires, themaxi-
mum permissible loadandthemaximum permissi-
ble vehicle speed.
The tirepr essur eta ble cont ains there commen -
ded tirepr essur esforcold tires under various
oper ating condition s,i.e. loading and/or speedof
th eve hicle.
Incr Incr
eased v eased
vehicle w ehicle
weig htdue t eig
htdue to op o
op tion aleq tion
aleq uip- uip-
men t: men
t:thecombined weight ofall standar dand
op tional equipment availabl efo rth eve hicle,
re ga rdless ofwhe ther itis actuall yinst alled onthe
ve hicle ornot.
Rim : Rim
:th epar tof thewheel onwhic hth etir eis
inst alled. G G
A A
WR (Gr WR
(Gross Axle W oss
Axle Weight R eight
Rating): ating):
theGA WR is
th emaximum permissible axleload. Theactual
load onanaxle must neverex ceed thegr oss axle
we ight rating. Thegross axle weight rating canbe
fo und ontheve hicle identi/cation plateon the
B‑pi llaron thedr iver's side.
Speed r Speed
rating: ating:
thespeed rating ispar tof thetir e
ident i/cation.Itspeci/es thespeed rang efo r
whic hatir eis appr oved.
G G
VW (Gr VW
(Gross V oss
Vehicle W ehicle
Weight): eight):
thegr oss vehicle
we ight comprises thewe ight oftheve hicle includ-
ing fuel, tools, thespar ewheel, accessories instal-
led, occupa nts,luggageand thetrailer draw bar
nose weight, ifapplica ble.Thegross vehicle weight
must notex ceed thegr oss vehicle weight rating
GV WR asspeci/ed ontheve hicle identi/cation
plat eon theB‑pillar onthedr iver's side.
G G
VWR (Gr VWR
(Gross V oss
Vehicle W ehicle
Weight R eight
Rating): ating):
theGV WR is
th emaximum permitt edgross weight ofthefull y
laden vehicle (weig htoftheve hicle includin gall
accessor ies,occupan ts,fuel, luggage and the
tr aile rdr aw bar nose weight ifapplica ble).The
gr oss vehicle weight rating isspec i/edon the
ve hicle identi/cation plateon theB‑pillar onthe
dr iver's side. Maximum
w Maximum
weight oft eight
ofthe laden v he
laden vehicle: ehicle:
themaxi-
mum weight isthesum ofthecurb weight ofthe
ve hicle, thewe ight oftheaccess ories, themaxi-
mum loadandthewe ight ofoptional equipment
inst alled atthefa ct or y.
Kilo pascal (kP Kilo
pascal (kPa) : a)
:me tric unit fortir epr essur e.
6.9 kPacor respond sto 1psi. Another unit fortir e
pr essur eis bar .100 kilopasc al(kP a)equals 1bar .
Load inde Load
index: x:
in addition totheload-bear inginde x,
th eload indexma yalso beimprint ed on theside
wa llof thetir e. This speci/es theload-bear ing
capac ityofthetir emor epr ecisel y.
Curb w Curb
weight: eight:
thewe ight ofave hicle withstandar d
eq uipme ntincl udin gth emaximum capacityof
fuel, oiland coolant. Italso includes theair condi-
tioning system and optional equipment ifth ese
ar einst alled ontheve hicle, butdoes notincl ude
passen gers or lugg age.
Maximum tir Maximum
tireload: e
load: themaximum tireload isthe
maximum permissible weight inkilog rams orlbs
fo rwhic hatir eis appr oved.
Maximum per Maximum
permissible tir missible
tirepr e
pr essur essur
e: e:
maximum
per missible tirepr essur efo rone tire. 310310
Wheels
andtires