2023 MERCEDES-BENZ A CLASS engine

FF
uel uel
NNo o
t t
es on fuel q es
on fuel quality f uality
for v or
vehicles wit ehicles
withag h
agasoline asoline
engine engine
No tetheinst ruction sabout operating0uids
(/ page328).
* NO NO
TE TE
Damag ecaused bythewr ong fuel Ev
en small amounts ofthewrong fuelcould
re sult indamag eto thefuel system, the
engine andtheemission controlsystem. #
Onlyre fuel with low- sulf urspar k-ignition
engine fuel.
This fuelmaycont ainupto10% ethanol byvol-
ume. Your vehicle issuit able foruse withE10
fuel.
Ne verre fuel with one ofthefo llo wing fuels:
R diesel
R Gasoline withmor eth an 10% ethanol by
vo lume, e.g.E15, E85,E100
R Gasoline withmor eth an 3% methanol by
vo lume, e.g.M15, M30,M85,M100 R
Gasoline withadditiv escont aining metal
If yo uha ve acciden tally re fuel edwith the
wr ong fuel: #
Donotswitc hon theve hicle. #
Con sult aquali/ed specialistwo rkshop. If
th eav ailabl efu el isno tsu1cie ntlylo w in sulf ur,
th is can produce unpleasa ntodor s.
Onl yre fuel with fuel that has atleas tth eoct ane
number speci/ed intheinf ormation labelinthe
fuel /ller 0ap. Othe rw ise, engine outputcanbe
re duced andfuelconsum ption incr eased.
F F
or maximum engineoutput: or
maximum engineoutput: Onlyre fuel using
pr em ium -gra de unleaded gasolin ewit hat leas t
91 AKI/95 RON.
If th ere commen dedfuelis no tav ailabl e,youma y
also temp orarily use regula runlea dedgasolin e
wit han oct ane num berofatleas t87 AKI/
91 RON.This mayre duce engineoutput and
incr ease fuelconsum ption.
Ne verre fuel using gasolin ewit han even lowe r
RO N. *
N NO O
TE TE
Prema tureengine wearthro ugh
unleaded regula rga solin e Im
pair ment ofthelong evity and perform ance
of theengine.
If unleaded premium grade gasolin eis una vail-
able andyouha ve torefuel using unleade d
re gula rga solin e: #
Only/ll thefuel tank tohalf fullwit h
unl eaded regula rga solin eand re/ll as
soon asposs iblewit hun lea ded premi um
gr ade gasolin e. #
Donotdr ive at themaximum design
speed. #
Avoid sudden accelerationandengin e
speeds over3000 rpm. Fu
rther informatio non fuel isavailabl eat thefo l-
lo wing locations:
R Ataga sst ation
R Ataqu ali/ed special istwo rkshop
R US US
Aonl y: A
onl y:At http s://www .mbusa.com 330330
Te
ch nica ldat a

NN
o o
t t
es on additiv es
on additiv esing es
ingasoline (v asoline
(vehicles wit ehicles
witha h
a
g g
asoline engine) asoline
engine)
No tetheinst ruction sabout operating0uids
(/ page328).
* NO NO
TE TE
Damag efrom use ofunsui table
additiv es Ev
en small amounts ofthewrong additivema y
lead tomalfun ctionsoccurring. #
Onlyadd cleaning additives recommen -
ded byMer cedes-Be nztothefuel. Mer
cedes-Benz recommen dsthat youuse brand-
name fuelswithadditiv es.
In some countr ies,thefuel availabl ema yno tha ve
su1cie ntaddit ives. Deposi tscould buildup inthe
fuel injection system asare sult .In this case, in
consult ationwithan aut hor ized Mercedes-Benz
Cent er,mix thefuel withth ecleaning additivere c-
ommen dedbyMer cedes-Be nz.Obs erve theno tes
and mixin gra tios indica tedon theta nk . T T
ank cont ank
cont entand fuelr ent
and fuelrese rve eser
ve
F F
uel t uel
tank tot ank
total capacit y al
capacit y Mod
el Mod
el
All model s1 3.5gal(51.0 liter s) RR
eser v eser
ve fuel t e
fuel tank ank
ModelModel
All models 1.3gal(5.0 liter s) Engine
oil Engine
oil NNo o
t t
es on engine oil es
on engine oil
Obser vetheno teson oper ating0uids
(/ page328). *
N NO O
TE TE
Eng inedamag ecaused byan inco r-
re ct oil /lter,incor rect oil oradditi ves #
Donotuse engin eoils oroil /ltersot her
th an those whic hmee tth especi/c ations
necessar yfo rth epr escr ibed service
int erva ls. #
Donotalt er theengine oiloroil /lter in
or der toachie velong erchang eint erva ls
th an prescr ibed. #
Donotuse addit ives. #
Have theengine oilchang edaTer the
pr escr ibed interva ls. Te
ch nica ldat a
331 331

Mer
cedes-Be nzrecommen dshavin gth eoil
ch ang edataqu ali/ed special istwo rkshop.
Onl yuse engineoils appr ovedfo ryo ur vehicle by
Mer cedes-Be nz.
Qua lityand capac ityofengine oil Qua
lityand capac ityofengine oil
Engine oil Engine
oilspe ci/cation s spe
ci/cation s Mode
l Mode
l MB-Fr MB-F
reig eig
abe orMB- abe
orMB-
Appro v Appro
val al
All mod els 229.51,229.5 2,
229.6 1,229.7 1*,
229.7 2 *
Re commen dedforth elowe stpo ssible fue lco n-
su mp tion.
To achie vethelowe stpo ssible fue lco nsum ption,
it is recommen dedtouse theengine oilspeci/c a-
tion smar kedin theta ble forth elowe stSA Evis-
cosity class.Observeanypossibl ere str iction sof
th eappr ovedSA Eviscosity classes. Engi
neoil Engi
neoil/lling /lling
capacity capacity
ModelModel
Capacity Capacity
All models 5.8USqt(5.5 liter s) The
speci/ed /llingcapacity refers to an oil
ch ang ewit hth eoil /lter. NNo o
t t
es on br es
on brak ak
e e
0uid 0uid
No
tetheinst ruction sabout operating0uids
(/ page328). &
W W
AR NIN G AR
NIN GRisk ofan acciden tdue to
va por pockets form ing inthebr ak esy stem
The brak e0uid const antlyabsorbs moisture
fr om theair .This lowe rstheboiling pointof
th ebr ak e0uid. Ifth eboiling pointistoolow,
va por pockets ma yfo rm inthebr ak esy stem
when thebr ak es areapplied hard.
This causes thebr aking e.ect tobe impair ed. #
Have thebr ak e0uid rene we dat the
speci/ed interva ls. Ha
ve thebr ak e0uid replaced regula rly at aqu ali-
/ed special istwo rkshop.
Onl yuse abr ak e0uid approvedby Mer cedes-
Benz accor ding toMB-F reigabe orMB- Appr oval
331. 0. Coolan
t Coolan
t NNo o
t t
es on coolan t es
on coolan t
Obser vetheno teson oper ating0uids
(/ page328). &
W W
AR NIN G AR
NIN G‑Risk of/reand injuryfrom
ant ifre eze
If antifr eeze comes intocont actwithho tcom-
ponent partsintheengine compartment, it
ma yignit e. #
Allo wtheengine tocool down before
addin ganti freeze . #
Mak esur eth at no ant ifre eze spills out
ne xt to the/ller opening. #
Thor oughl yclean o.anyantifr eeze from
com ponent partsbef orestar ting the
ve hicle. 332332
Te
ch nica ldat a

*
N N
O O
TE TE
Dam ageca use dby incor rect cool-
ant #
Onlyuse coolant that has been premix ed
wit hth ere qu ired antifr eeze protection.
Inf ormation oncoolant isavailabl eat thefo l-
lo wing locations:
R IntheMer cedes-Benz Speci/cation for
Oper ating Fluids 320.1
- Athttp s://be vo.mer cede s-benz.c om
- IntheMer cedes-Benz BeVoapp
R Ataqu ali/ed special istwo rkshop *
N NO O
TE TE
Overheati ngathigh outsi detemp er-
atur es If
an inappr opriatecoolant isused, theengine
cooling system isno tsu1cien tly pr otect ed
ag ainst overheating andcorrosion athigh out-
side temp eratur es. #
Onlyuse coolant approvedby Mer cedes-
Benz. #
Obs erve theinst ruction sin the
Mer cedes-Be nzSpeci /cation sfo rOper -
ating Fluids 320.1. Ha
ve thecoolant regula rly re placed ataqua li/ed
specialist workshop.
Pr opor tionofant ifre eze concentr atein theengine
cooling system:
R Aminimum of50% (antifr eezeprotection down
to about -35°F(-37 °C))
R Amaximum of55% (antifre eze protection
do wn to-49°F (-45°C))
Cool antcapacity Cool
antcapacity
Cool ant(engine ) Cool
ant(engine ) ModelModel
Capacity Cap
acity
All mode ls 9.4USqt(8.9 liter s) NNo o
t t
es on winds hieldw es
on winds hieldwas her as
her 0uid 0ui
d Obs
erve theno teson oper ating0uids
(/ page328). &
W W
AR NIN G AR
NIN G‑Risk of/reand injuryfrom
wind shield washer conce ntrate
Wi ndsh ieldwasher conce ntrate ishighl y0am-
mable. Itcould igniteif it comes intocont act
wit hho tengine component partsor the
ex haus tsy stem. #
Mak esur eth at no wind shield washer
conce ntrate spill sout next to the/ller
opening. *
N NO O
TE TE
Damag eto theex terior lightin gdue
to unsuit ablewindshield washer 0uid Un
suit able windshield washer 0uidmaydam-
ag eth eplastic surface oftheex terior lightin g. #
Onlyuse windshield washer 0uidwhichis
also suitable foruse onplastic surfaces,
e.g .MB Sum merF itor MB WinterF it. Te
ch nica ldat a
333 333

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Á
Key NotDetected (red dis-
pla ymessag e) *T
heSmar tKey canno tbe detected and mayno long erbe intheve hicle.
The Smar tKey isno long erintheve hicle andyouswitc ho. theve hicle:
R Youcan nolong erstar tth eve hicle.
R Youcanno tcentr allyloc kth eve hicle. #
Ensu rethat theSmar tKey isin theve hicle.
If th eSmar tKey detection function hasamalfu nctiondue toast ro ng radio signal source: #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. #
Place theSmar tKey inthemar kedspace forst ar ting theengine withth eSmar tKey (/ pag e129).
Á
Don't Forget YourKey *A
warning tone willals osou nd. This message reminds youto take your Smar tKey withyo uwhen youlea vetheve hicle.
Á
Key BeingIniti alize dPlea se
Wa it *T
hevehicle isprocessin gin order toteac hin thene wSmar tKey . #
Waituntil process ingiscom plete. 342342
Displa
ymessa gesand warning/in dicatorlam ps

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Pla cethe Key inthe
Marked SpaceSeeOpera -
tor's Manua l *S
mar tKey detection ismalfu nctionin g. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Place theSmar tKey inthemar kedspace forst ar ting theengine withth eSmar tKey (/ pag e129). LightsLights
DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
:
Check LeftLow
Beam (exa mp le) *T
hecor respond inglight sour ceisdef ecti ve. #
Drive on car efull y. #
Visit aqu ali/ed special istwo rkshop immed iately.
% LED light sources: thedispla ymessag efo rth ecor respond inglight appear sonl ywhen allthelight-emittin gdiodes
in thelight arefa ulty .
: Malfu nction See Opera-
tor’s Manual *T
heexterior lightin gis malfunct ioning. #
Consult aquali/ edspecialist workshop. Displ
aymessag esand warning/in dicatorlam ps
343 343

VV
ehicle ehicle
DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solution s Solution
s
0072
Vehicle ReadytoDrive
Switch theIgnition Off
Before Exiting *Y
ouarelea ving theve hicle inare ady -to-dr ive stat e. #
Getout oftheve hicle, secureit ag ains tro lling awayand take theSmar tKey wit hyo u. #
Ifyo udo notlea vetheve hicle, switcho. theelectr icalconsumer s,e.g. theseat heating. Other wise, the12‑ Vbat-
te ry ma ydisc hargeand star tin gth eengine maybe possible onlywit hth ehelp ofasecond battery(jum pstar t).
Head-up DisplayCurre ntly
Unavail ableSee Operator's
Manua l *T
heHead -upDispl ayistemp orarily una vailable. Possible causes:
R Malf unct ionsin thepo we rsuppl y
R Sign alint erfere nce #
Stop inaccor dance withth etra1c conditions andswitc hth eve hicle o.and onagain. #
Ifth edispla ymessag estill appear s,consult aqu ali/ed special istwo rkshop.
Hea d-upDisp layInop era-
tive *T
heHead -upDispl ayhas aninternal erro r. #
Consult aqua li/ed specialist workshop. 346346
Displ
aymessag esand warning/in dicatorlam ps

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons #
Pull overand stop theve hicle safelyas soon aspossibl e,paying attent ion toroad and tra1c cond itions. Do
no tcont inuedr ivi ng und eranycir cums tances . #
Cons ultaqu ali/ ed spec ial ist wo rkshop. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. Donotcontinue driving. #
Consult aqua li/ed specialist workshop.
û
Befo reStarti ngthe Engine ,
Tu rn Steer ingWhe el *T
heelect ric steer ing lockcould notunl ockth esteer ing. #
Switc ho. theve hicle. #
Tounloc kth esteer ing, movethesteer ing wheel slightlyto theleT and right. #
Switc hon theve hicle again.
0051 *A
tleast onedoor isopen. #
Clos eall door s.
0083 *T
hehood isopen . &
W W
AR NIN G AR
NIN GRisk ofacciden tdue todriving withth ehood unlocked
The hood mayope nand blockyour vie w. 348348
Displa
ymessa gesand warning/in dicatorlam ps