check engine MERCEDES-BENZ GLC COUPE 2023 Owners Manual

#
T T
o switc o
switc hon t h
on the pow he
power suppl y er
suppl y: :
pr ess button
1 once.
Yo ucan, forex am ple, switc hon thewindshield
wiper .
The powe rsuppl yis switc hedo.again ifth efo l-
lo wing conditions areme t:
R youopen thedr iver's door .
R youpr ess button1 twice more. #
T T
o switc o
switc hon t h
on the v he
vehicle: ehicle:
press button1
twice.
Indicat orand warning lampslight upon the
inst rument cluster.
The vehicle isswitc hedo.again ifone ofthefo l-
lo wing conditions isme t:
R youdo notst ar tth eve hicle within 15min utes
and thetransmission isin position 005Dorthe
electr icpar king brak eis applied.
R youpr ess button1 once. SS
t t
ar ar
ting t ting
the v he
vehicle ehicle
SS
t t
ar ar
ting t ting
the v he
vehicle wit ehicle
witht h
the st he
star ar
t/s t t/s
top butt op
butt on on
&
D D
AN AN
GER GER
Riskofdeat hcaused byexhaus t
ga ses
Combu stion enginesemit poison ousexhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisoning . #
Neverlea vetheengine or,if pr esent, the
auxili aryheati ngrunning inan encl osed
spa cewithou tsu1 cientventila tion. &
W W
ARNI NG ARNI
NGRisk of/redue to0amma ble
mat erial intheengine compartment orthe
ex haus tsy stem
Flammab lemat erials mayign ite. #
Ther efor e, checkre gula rly th at ther ear e
no 0amma blemat erials intheengine
com partment oron theex haus tsy stem. RR
eq eq
uir uir
emen ts emen
ts
R theke yis in theve hicle andisde tected. #
ShiT thetransmission toposition 005Dor005C. #
Depr essthebr ak epedal andpress button1
once. #
Ifth eve hicle does notst ar t:switc ho. non -
essen tialconsu mersand press button1
once . #
Ifth eve hicle still does notst ar tand thePlace
the Key inthe Marked SpaceSeeOperator's
Manua ldispla ymessag eappear son the
inst rument displa y:sta rttheve hicle withth e
ke yin themar kedspace (emergency opera-
tion mode )(/ page137).
% Youcan switc ho. theve hicle while drivi ng .To
do this, press button1 forabout thre esec-
onds orpress button1 thre etimes within
th re eseconds. Besureto obser vethesaf ety
no tesconce rning this under "Driving tips"
(/ page140).
Obser veanyinf ormatio nre ga rding displa ymes-
sag esthat ma ybe displ ayedon theinst rument
displa y. 136136
Dr
iving andparking

SS
t t
ar ar
tin gt tin
gthe v he
vehicle wit ehicle
witht h
the ke he
keyin t y
in the stow he
stow age ag
e
com com
par par
tmen t(emer g tmen
t(emer gency oper ency
operation mode) ation
mode)
If th eve hicle does notst ar tand thePlace the
Key inthe Marked SpaceSeeOperator's Manual
messag eappear sin theinst rument displa y,yo u
can star tth eve hicle inemer gency operation
mode . #
Mak esur eth at mar kedspace 2isem pty. #
Remo vekey1 from theke yring. #
Plac eke y1 inmar kedspace 2onsymbol
3.
The vehicle willstar taTer ashor ttime .
If yo ure mo vekey1 from mar kedspace 2,
th eve hicle canstill be driven. Forfur ther
engine star ts howev er,ke y1 mus tbe loca-
te din mar kedspace 2onsymbol 3during
th eentir ejour ney. #
Have key1 checkedat aqu ali/ed special ist
wo rkshop.
If t If
the v he
vehicle doesno ehicle
doesnotst t
st ar t: ar
t: #
Place key1 inmar kedspace 2and leaveit
th er e. #
Depr essthebr ak epedal andstar tth eve hicle
usin gth estar t/s topbutt on.
% Youcan switc hon thepo we rsuppl yor the
ve hicle withth estar t/s topbutt on.
Obser veanyinf ormatio nre ga rding displa ymes-
sag esthat can bedispl ayedon theinst rument
displa y. SS
t t
ar ar
tin gt tin
gthe v he
vehicle viaR ehicle
viaRemo t emo
te Onl ine Ser e
Onl ine Service s vice
s Cool
ingorheati ngt Cool
ingorheati ngthe v he
vehicle int ehicle
inter er
ior bef ior
before or
e
st st
ar ar
tin gt tin
gthe jou r he
jou rne y ne
y
Ensu rethefo llo wing beforestar ting theengine:
R The legalstipulation sin thear ea wher eyo ur
ve hicle ispar kedallo wengin estar ting via
smar tphone.
R Itis saf eto star tand runth eengine where
yo ur vehicle ispar ked.
R The fuel tank issu1 ciently full .
R The star terbatt eryis su1cien tly ch arge d.
Char Char
ging t ging
the st he
star t ar
ter batt er
batt er er
ybef y
bef or or
est e
star ar
ting t ting
the he
jour jour
ney ne
y
Yo ucan receiv eamessag eon your smar tphone
when thestat eof charge ofthestar terbatt eryis
lo w. Youcan then star tth eve hicle withth esmar t-
phone tocharge thebatt ery. The vehicle isaut o-
matic allyswitc hedo.aTer tenminut es.
Ens ureth efo llo wing beforestar ting theengine:
R The legalstipulation sin thear ea wher eyo ur
ve hicle ispar kedallo wengin estar ting via
smar tphone. Dr
iving andparking
137 137

R
When theengine isoTen leTidling forlong
per iods
R Oper ation inpar ticular lydust ycondition s
and/or ifair -recir culation modeisfreq uentl y
used
In these orsimilar operating conditions, have the
int erior air/lter,air /lter,engine oiland oil/lter,
fo rex am ple, chang edmor efreq uen tly. Ifsubj ect
to incr eased stress, checkth etir es mor e.Further
inf ormatio ncan beobt aine dat aquali/ed special-
is two rkshop. Bat
t Bat
ter er
ydiscon nectionper y
discon nectionperiods iods
The
ASSYST PLUS service interva ldispla ycan cal-
culat eth eser vice duedateonl ywhen thebatt ery
is connect ed. #
Displa yand note down theser vice duedate
on theinst rument displa ybef oredisconne ct-
ing thebatt ery(/ page271). Engine
com Engine
compar par
tment tment
Opening
andclosing t Opening
andclosing the hood he
hood &
W W
ARNIN G ARNIN
GRisk ofaccident duetodriving
wit hth ehood unlocked
The hood mayope nand blockyour vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood is
loc ked. &
W W
ARNIN G ARNIN
GRisk ofaccident andinjury
when openingand closin gth ehood
The hood maysuddenl ydr op intoth eend
position.
Ther eis arisk ofinjuryfo ran yone inthe
hood's rang eof mo vement. #
Donotopen orclose thehood ifth er eis
a per son inthehood's rang eof mo ve-
ment. &
W W
ARNIN G ARNIN
GRisk ofbur nswhen openin gth e
hood
If yo uopen thehood intheev ent ofan ove r-
heat edeng ineor/rein theengine compart-
ment, thefo llo wing situations mayoccur :
R Youma ycome intocont actwithho tga ses.
R Youma ycome intocont actwithot her
escapin gho toper ating0uids. #
Beforeopen ingthehood, allowthe
engine tocool down. #
Intheev ent ofa/r ein theengine com-
par tment, keep thehood closed andcall
th e/r eser vice. &
W W
ARNIN G ARNIN
GRisk ofinjur ydue tomo ving
par ts
Com ponen tsintheengine compartment may
continue torunor star tune xpectedl yev en
when thedr ive sy stem isswitc hedo..
Obser vethefo llo wing ifyo umust open the
hood: 272272
Main
tenanc eand care

#
Push handle 1ofthehood catchupw ards
and liTthehood untilitopens automaticall y.
Closing t Closing
the hood he
hood #
Lowe rth ehood toaheig htofaroun d8 in
(20 cm) andthen allo witto fall, appl ying alit-
tle forc eas youletit go. #
Ifth ehood canstillbeliTed slightl y,open the
hood again and close itwit halit tle mor efo rc e
until iteng ages cor rectl y. Engi
neoil Engi
neoil ChecChec
kingt king
the eng ineoillev he
eng ineoillevel using t el
using the oildips he
oildips tick tic
k &
W W
ARNIN G ARNIN
GRisk ofbur nsfrom hotcom po-
nen tpar tsintheengine compartment
Cer tain com ponent partsintheengine com-
par tment canbevery hot,e.g .th eengine, the
cooler andpartsof theex haus tsy stem. #
Allow theengine tocool down and only
to uc hcom ponent partsdescr ibedinthe
fo llo wing. RR
eq eq
uir uir
ements ements
R The engine hasanoildipstic k.Ifno t,the
engine oilleve lcan becheckedonl ywit hth e
on-boar dcom puter(/ page275) .
Dependin gon theengine, theoil dipstic kma ybe
inst alled intheengine compartment indi.er ent
locations. The
waiting time beforech ecking theoil leve l
when theengine isat nor mal oper ating temp era-
tur eis /veminut es. #
Park theve hicle onaleve lsur face. #
Pulloil dips tick1 out and wipe o.. 274274
Main
tenanc eand care

#
Slowly slide oildips tick1 intoth eguide tube
to thestop, and pullitout again aTer approx-
imat elyth re eseconds.
R Oilleve lis cor rect: oilleve lis be tween 2
and 3.
R Oilleve lto olow: oil leve lis at 3 orbelo w.
R Oilleve lto ohigh: oilleve lis abo ve2 . #
Ifth eoil leve lis toolow, add 1.1USqt(1liter)
of eng ineoil. #
Ifth eoil leve lis toohigh, drain o.excess
eng ineoil.Visit aqu ali/ed special istwo rk-
shop.
Chec Chec
kingt king
the eng ineoillev he
eng ineoillevel usin gt el
usin gthe on- boar d he
on- boar d
com com
put put
er er
R R
eq eq
uir uir
emen ts: emen
ts:
R The enginehas been warmed up.
R The vehicle ispar kedon aleve lsur face.
R The engineisrunning atidle speed.
R The hoodis clo sed .
The engine oilleve lis de term ined during driving.
De term ining theengine oilleve lcan take up to 30
minut eswithanor mal driving styleand even
long erwit han activ edr iving style.
On-boar dcom puter:
4 Service 5
Engine OilLevel
One ofthefo llo wing messa geswill appear onthe
inst rument displa y:
R Measuring EngineOil Level... :meas urement
of theoil leve lis no tye tpos sible. #
Repeat there qu est aTer amaximum of
30 minut es'driving.
R Engine OilLevel OKand thebar displa yfo r
indicating theoil leve lon theinst rument dis-
pla yis green and isbe tween "min" and"max":
th eoil leve lis cor rect.
R Engine OilLeve lAdd 1.0land thebar displa y
fo rindicating theoil leve lon theinst rument
displa yis orang eand isbelo w"min": #
Add1.1 USqt(1l)of engin eoil.
R Red uce Engine OilLevel andthebar displa y
fo rindicating theoil leve lon theinst rument
displa yis orang eand isabo ve"max": #
Drain o.anyex cess engineoilthat has been
added. Todo so, consult aqua li/ed specialist
wo rkshop.
R For Engine OilLeve lSwi tch Ignition On #
Switchon theve hicle tocheckth eengine oil
le ve l.
R Engine OilLevel System Inoperative: Theoil
le ve lsensor isdef ectiv eor notconnect ed. #
Consult aqua li/ed specialist workshop.
R Engine OilLeve lSys tem Currentl yUnav ail. #
Close thehood.
T T
op upengine oil op
upengine oil &
W W
ARNIN G ARNIN
GRisk ofbur nsfrom hotcom po-
nent partsintheengine compartment
Cer tain com ponent partsintheengine com-
par tment canbevery hot,e.g .th eengine, the
cooler andpartsof theex haus tsy stem. #
Allow theengine tocool down and only
to uc hcom ponent partsdescr ibedinthe
fo llo wing. Maint
enance andcare
275 275

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
Á
Don't Forget YourKey *A
warning tone willals osou nd. This message reminds youto take your Smar tKey withyo uwhen youlea vetheve hicle.
Pl ace theKey inthe
Ma rked SpaceSee Opera-
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 e137). 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 . Displa
ymessa gesand warning/in dicatorlam ps
357 357

Engi
ne Engi
ne DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/consequences and uences
and0050 0050
Solu tions Solu
tions
To swi tch engine off,pres s
and holdStart/Stop but-
ton foratlea st3secs. or
pres s3 times. *Y
ouhave pressed thestar t/s topbutt onwhile theve hicle isin mo tion . #
Informatio nabout switchingo.theve hicle while drivi ng (/ page136).
Ca nnot Start Engine See
Ope rator'sManua l *T
hevehicle cannotbe star ted. #
Switc hth eve hicle o.and switc hit bac kon #
Ifth edispla ymessag estill appear s,consult aqu ali/ed special istwo rkshop.
00BD
Ch eck Coolant Leve lSee
Ope rator'sManua l *T
hecoolan tle ve lis toolow.
* N N
O O
TE TE
Engine damagedue toinsu1c ientcoolant #
Avoid long journeys wit hinsu1cient coolant. #
Addcoolant (/page277). #
Have theengine cooling system checkedat aqu ali/ed special istwo rkshop. Displ
aymessag esand warning/in dicatorlam ps
365 365

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 #
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(/ page277). #
Mak esur eth at theair suppl yto thera diat orisno tobstr ucted. #
Consult aqua li/ed specialist workshop. #
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.
00B9 Engin ediagnosis warning
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. Displ
aymessag esand warning/in dicatorlam ps
407 407

Displa
y Displa
y
Car e.... .................................................. 283
Displa Displa
y(on-boar y
(on-boar dcom d
com put put
er) er)
Displa yson theinst rument displa y......... 224
Disp la Disp
lay mes sage y
mes sage
Call ingupintheon-boar dcom puter...... .3 51
Displa Displa
ymessa g y
messa ges es
ç ---mp h<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F> 376
h ---mp h<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F> 376
003D 12VBatt erySee Oper ator's
Manual <000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F> 393
: ActiveHeadl ampsInop erativ e....... 358
é ATTEN TIONASSIS TIno per ative..... 375
é ATTEN TIONASSIS T:Take a
Br ea k!...... ...... ........................................ 376
: Automatic Headlam pMode
Inoper ative......... .................................... 358
0027 CheckBr ak eFluid Level................ 374
00BD CheckCoola ntLevelSee Oper -
at or's Manual. ........................................ 365 00B3
CheckEngine OilAtNe xtRe fu-
eli ng .... ........................ .......................... 400
00B3 CheckEng ineOilLe vel(A dd 1
qu art)... ........................... ......................4 00
: CheckLeT LowBeam (exa mp le)... 357
0077 CheckTire s<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F> 396
00B2 CheckWa sher Fluid... ...................3 64
00C4 Compressor IsCooling ..................386
ÿ Coolant TooHo tSt op Vehicle
Tu rn Engi neO... .................................... 366
0025 Currentl yUna vailable SeeOper -
at or's Manual. ........................................ 387
00E5 Currentl yUna vailable SeeOper -
at or's Manual. ........................................ 388
Á Don't Forget Your Key<000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F> 357
00C4 Drive Mor eSlo wly <000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F000F
000F000F000F000F000F000F000F000F000F> 385
00B3 Engine OilLevelCanno tBe
Measur ed........ ........................ ..............402
00B3 Engine OilLevelLo wStop Vehi-
cle Turn Engi neO... ...............................4 01 00B3
Engine OilPressur eSt op Switc h
O. Engin e....... ....................................... 402
00B3 EngineOil Reduce OilLevel........... 401
0075 Front LeT Malfu nction Service
Re quired (examp le)...... ..........................352
00B6 FuelLevelLo w... ...... ..................... 367
00B6 GasCap Loose ............................. 367
0025 Inoper ativeSee Oper ator's
Manual....... ...........................................3 88
00E5 Inoper ativeSee Oper ator's
Manual....... ...........................................389
007A Inoper ativeSee Oper ator's
Manual....... ...........................................390
0053 Inoper ative....... ............................ 392
: Intell. Light System Inoper ative..... 359
Á KeyBe ing Ini tia lized Please Wait.... 356
Á KeyNo tDe tected (Red displa y
messag e)...............................................3 56
Á KeyNo tDe tected (whit edis-
pla ymessag e)... .....................................3 55 Inde
x
423 423