engine MERCEDES-BENZ A CLASS 2023 Repair Manual

TT
r r
ansmi ssion ansmi
ssion Displ
a Displ
ay messag y
messag es P es
Possibl ecauses/ conseq ossibl
ecauses/ consequen ces and uen
ces and 0050 0050
Sol utions Sol
utions
Only Shiftto 'P' when Veh i-
cle isStati onary *I
tis pos sibleto select thepar kposition 005Donlyif th eve hicle isstation ary. #
Depr essthebr ak epedal tostop . #
ShiT thetransmission topar kposition 005Dwhen theve hicle isstation ary.
App lyBra ketoShi ftfrom
'P' *Y
ouhave attem pted toshiT thetransmission outofpar kposition 005Dand intoano ther transmission position. #
Depr essthebr ak epedal. #
Select transmission position005B,005Eorneutr al005C.
To Deselect Por N,
Depress BrakeandStart
Engine *Y
ouhave attem pted toshiT thetransmission outofpar kposition 005Dorneutr al005C and intoano ther transmission posi-
tion. #
Depr essthebr ak epedal. #
Startth eve hicle. #
Chang eth etransmission position.
Apply Brake toShift toDor
R *Y
ouhave attem pted toselect transmissi onposit ion005Bor005E. #
Depr essthebr ak epedal. #
Select transmission position005Bor005E.
Apply Brake toShift to'R'
*Youhave attem pted toselect transmissi onposit ion005E. #
Depr essthebr ak epedal. Displa
ymessag esand warning/in dicatorlam ps
353 353

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
* NO NO
TE TE
Possible enginedamag eif yo ucontinue driving #
Donotcontinue driving under anycir cumst ances. #
Consult aqu ali/ ed spec ial ist wo rkshop. #
Stop immediat elyin accor dance withth etra1c conditions andswitc ho. theve hicle. #
Con sult aquali/ed specialistwo rkshop.
003D
Stop VehicleSee Opera-
tor's Manua l *T
he12 Vbatt eryis no longerbeing charge dand thecondition ofcharge istoolow.
* N N
O O
TE TE
Possible enginedamag eif yo ucontinue driving #
Donotcontinue driving under anycir cumst ances. #
Consult aqu ali/ ed spec ial ist wo rkshop. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. Donotcontinue driving. #
Switc ho. theve hicle. #
Con sult aquali/ed specialistwo rkshop. 378378
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
003D
Stop Vehicl eLeave Engine
Ru nning *T
he12 Vbatt erych arge leve lis toolow. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. Donotcontinue driving. #
Leavetheve hicle running #
Ifth edispla ymessag edisappear s:drive on. #
Ifth edispla ymessag edoes notdisappear :consult aqua li/ed specialist workshop. TT
ir ir
e pr e
pr essur essur
emoni t e
moni tor or
Displ
a Displ
ay messag y
messag es P es
Possible causes/ conseq ossible
causes/ consequen ces and uen
ces and 0050 0050
Sol utions Sol
utions
Ti re Pre ss. Moni torCur-
rentl yUnav ailabl e *T
her eis int erfere nce from apo we rful radio signal sourceAs are sult ,no sign alsfrom thetir epr essur esensor sar e
being receiv ed.The tirepr essur emonit oring system istemp orarily una vailable.
The tirepr essur emonit oring system will restar tau tomaticall yas soon asthecause hasbeen recti/ed. #
Drive on.
Tir ePres s.Moni torInope ra-
tive *T
hetirepr essur emoni toring system isma lfunct ioning . &
W W
ARNI NG ARNI
NGTher eis arisk ofan acciden tif th etir epr essur emonit oring system ismalfunctionin g
The tirepr essur emonit oring system canno tissue awa rning ifth er eis pressur eloss inone ormor eof thetir es.
Ti re swit hinsu1cie nttirepr essur ema yim pair thedr iving charact eristics aswellas steer ing and braking. #
Have thetir epr essur emonit oring system checkedat aqu ali/ed special istwo rkshop. Displ
aymessag esand warning/in dicatorlam ps
379 379

Engi
neoil Engi
neoil DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/consequences and uences
and0050 0050
Solu tions Solu
tions
00B3
Che ckEngine OilLevel
(Add 1qua rt) *T
heeng ineoilleve lhas dropped totheminimum leve l.
* N NO O
TE TE
Engine damagecaused bydriving withinsu1cien tengin eoil #
Avoid long journeys wit hinsu1cient engineoil. #
When next refuel ing, add1.1 USqt(1l)of engi neoil(/ page 261).
No teson eng ineoil(/ page331).
00B3
Engine OilReduce Oil Leve l *T
heeng ineoilleve lis toohigh.
* N NO O
TE TE
Engin edamag ecaused bydriving withex cess engineoil #
Avoid long journeys wit hex cess engineoil. #
Consu ltaquali/ed specialistwo rkshop immed iatelyand have theengine oilleve lre duced.
00B3 Engine OilLevel LowStop
Vehicl eTurn Engine Off *T
heeng ineoilleve lis toolow.
* N N
O O
TE TE
Engine damageca use dby driving withinsu1cien tengin eoil #
Avoid long journeys wit hinsu1cient engineoil. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. Donotcontinue driving. 384384
Displa
ymessag 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 #
Switc ho. theve hicle. #
Add1.1 USqt(1l)of engin eoil (/ page261). #
Chec kth eengine oilleve l.
No teson eng ineoil(/ page331).
00B3
Engine OilPre ssu reStop
Swi tch OffEngine *T
heoilpressur eis toolow.
* N N
O O
TE TE
Engine damageca use dby driving withinsu1cien toil pressur e #
Avoid drivin gwit hinsu1cient oilpressur e. #
Stop theve hicle immed iatelyin accor dance withth etra1c conditions. Donotcontinue driving. #
Switc ho. theve hicle. #
Con sult aquali/ed specialistwo rkshop.
00B3
Engine OilLeve lCa nnot Be
Mea sured *T
heelect rical conn ectionto theoil leve lsensor hasbeen interrupted ortheoil leve lsensor isfaulty . #
Consult aqu ali/ ed spec ial ist wo rkshop. Displ
aymessag esand warning/in dicatorlam ps
385 385

WW
ar ar
nin gand indicat nin
gand indicat orlam or
lam ps ps
OvOv
er er
vie vie
wof ind icat w
of ind icat orand w or
and war ar
nin glam nin
glam ps ps
Som
esy stems willperform aself -tes twhen the
ve hicle isswitc hedon.Som eind icat orand warn-
ing lampsma ybr ie0y light upor0as h.This beha v-
ior isnon-cr itical.These indicat orand warning
lam psindicat eamalfunction onlyif th ey light up
or 0as haTer theve hicle hasbeen star tedor dur -
ing ajour ney.
S S
t t
andar andar
dins d
ins tr tr
umen tdispl ay ument
display WW
idescr idescr
eencoc een
cockpit ins kpit
instr tr
ument display ument
display Depending
onthedispla yse tting ,th epositions of
th eindicat orlam pson theinst rument displa yma y
di.er from theex am ple shown.
Indi cat Indi
catorand w or
and war ar
nin glam nin
glam ps: ps:
0075 Restr aint system (/ page 387)
00E9 Seatbelt(/page387)
Ù Powe rst eer ing (/ page388)
ÿ V V
ehicles wit ehicles
withawidescr h
awidescr eencoc een
cockpit kpit
: :
coolant temp eratur e(/ page389)
00B9 Enginediagnost ics(/ page389)
003D Electricalmalfunction (/page389) 00D4
Reser vefuel with fuel /ller 0aploca -
tio nind icat or (/ page 389)
0049 USA:electr icpar king brak e(red)
(/ page393)
0024 Canada:electricpar king brak e(red)
(/ page393)
0024 Electricpar king brak e(yello w)
(/ page393)
00C6 USA:Recuper ativeBr ak eSy stem
(/ page393)
004D Canada:brak es (yello w)
(/ page393)
0027 USA:brak es (red) (/ page393)
004D Canada:brak es (red) (/ page393)
L Distance warning (/ page396)
Ó ActiveBr ak eAssi st(/ page396)
ê ActiveBr ak eAssi st(/ page396)
0025 ABS(/page397)
00E5 ESP®
(/ page397)
00BB ESP®
OFF (/page397) 386386
Disp
lay mes sagesand warning/in dicatorlam ps

WW
ar ar
nin g/ind icat nin
g/ind icat orlam pP or
lam pP ossiblecauses/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions #
Pull overand stop theve hicle safelyas soon aspossibl e,paying attent ion toroad and tra1c cond itions. Donot
cont inuedr ivi ng und eranycir cums tances . #
Cons ultaqu ali/ ed spec ial ist wo rkshop. #
Notethemessag eson theinstr ument display. Engi
ne Engi
ne WW
ar ar
nin g/i ndicat nin
g/i ndicat orlam pP or
lam pP ossiblecauses/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
ÿ
Coolant warning lamp(red) *T
he redcoolant warning lampis lit while theengine isrunning.
Po ssible causes:
R The temp eratur esensor ismalfunctionin g
R The coolant leve lis toolow
R The airsuppl yto thera diat orisobstr ucted
R The radiat orfan is faulty
R The engine coolant pumpis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. Displa
ymessag esand warning/in dicatorlam ps
389 389

WW
ar ar
nin g/ind icat nin
g/ind icat orlam pP or
lam pP ossiblecauses/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions &
W W
ARNIN G ARNIN
GRisk ofbur nswhen openin gth ehood
If yo uopen thehood intheev ent ofan ove rheat edengine or/rein theengine compartment, thefo llo wing situations
ma yoccur :
R Youma ycome intocont actwithho tga ses.
R Youma ycome intocont actwithot her escapin gho toper ating0uids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheev ent ofa/r ein theengine compartment, keep thehood closed andcallthe/r eser vice. #
Stop immediat elyin accor dance withth etra1c conditions andswitc ho. theve hicle. Donotcont inuedr ivi ng . #
Notethemessag eson theinstr ument display.
If t If
the coolan tt he
coolan ttem em
per per
atur atur
edispl a e
displ ay is at t y
is at the low he
lower end oft er
end ofthe t he
tem em
per per
atur atur
escale: e
scale: #
Con sult aquali/ed specialistwo rkshop.
If t If
the coolan tt he
coolan ttem em
per per
atur atur
edispla e
displa yis at t y
is at the upper endoft he
upper endofthe t he
tem em
per per
atur atur
escale: e
scale: #
Exit theve hicle andkeep asaf edist ance from ituntil theengine hascooled down. #
Chec kth ecoolant leve l(/ page262). #
Mak esur eth at theair suppl yto thera diat orisno tobstr ucted. #
Avoiding highloads ontheengine, drive to thenear estquali/ed special istwo rkshop. Indoin gso, ensu rethat the
coolant temp eratur edispla yre mains belowthere dar ea. 390390
Displa
ymessag esand warning/in dicatorlam ps

WW
ar ar
nin g/ind icat nin
g/ind icat orlam pP or
lam pP ossiblecauses/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
ÿ
Coolant warning lamp(yel-
lo w) *T
he yello wcoolant warning lampis lit while theengine isrunning.
Po ssible causes:
R The temp eratur esensor ismalfunctionin g
R The charge air,tr ansmi ssionoilorbatt erycooli ngisfaulty
R The radiat orshutt ersar ebloc kedor def ectiv e #
Avoiding highloads ontheengine, drive to thenear estquali/ed special istwo rkshop.
00B9 Eng inediag nosiswa rning
lam p *T
he yello wChec kEngine warning lampis lit while theengine isrunning.
A ma lfunct ionhasocc urredin theengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exceeded andtheengine maybe inemer gency mod e.
In som estat es, legalrequ irements stipulateth at youmust immediat elyconsult aqu ali/ed special istwo rkshop assoon
as theye llo wChec kEngine warning lamplights up. #
Have theve hicle checkedas soon aspossible ataqu ali/ed special istwo rkshop.
003D
Elect rical malfu nctionwarn-
ing lamp *T
heredelectr icalmalfuncti onwarning lampis lit.
Ther eis amalfunction intheelectr ics. #
Notethemessag eson theinstr ument display. Displa
ymessag esand warning/in dicatorlam ps
391 391

WW
ar ar
nin g/ind icat nin
g/ind icat orlam pP or
lam pP ossiblecauses/conseq ossible
causes/conseq uencesand uences
and0050 0050
Solut ions Solut
ions
00D4
Fu elreser vewarning lamp
0as hes *T
he yello wfuel reser vewarning lamplights upwhile youar edr iving.
Ther ehas been pressur eloss inthefuel system. Thefuel /ller capisno tclosed correctl yor thefuel system isleaking. #
Close thefuel /ller cap.
If th efuel /ller caphasalready been closed correctl y: #
Consult aqua li/ed specialist workshop.
00D4
Fu elreser vewarning lamp
lights up *T
he yello wfuel reser vewarning lamplights upwhile theengine isrunning.
The fuel supplyha sdr opp edintoth ere ser verang e. #
Refuel . 392392
Dis
playme ssag es and warning/in dicatorlam ps