2023 MERCEDES-BENZ GLC COUPE fuel

#
Chang eimmediat elyout ofclo thing that
has come intocont actwithfu el. Fle
xible -fuel vehicles canberefuel edwith thefo l-
lo wing fueltypes:
R unleaded gasolin e
R E85 fuel
R amixtu reofE85 fueland unleaded gasolin e
Fle xible -fuel vehicles canbeidenti/ed bythe
Et Et
hanol upt hanol
upto E85 o
E85 sticke ron theinside ofthefuel
/ller 0ap.
Depending onthecountr y,thefuels youcan use
in your vehicle maydi.er from theinf ormation in
th eOper ator's Manual. Thefuels that have been
appr oved foryo ur vehicle canbefound onthe
inst ruction labelontheinside ofthefuel /ller 0ap. FF
uel uel
InfInf
or or
mation onfuel q mation
onfuel quality f uality
for v or
vehicles wit ehicles
withg h
gaso- aso-
line engine line
engine
Obser vetheno teson oper ating0uids
(/ page342). *
N NO O
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,
it ma ypr oduce unpleasant odors.
Re fuel using onlyfuel that has atleas tth eoct ane
number speci/ed ontheinf ormation labelonthe
fuel /ller 0ap(/ page 152).
F F
or maxim umengine output: or
maxim umengine output: refuel using onlypr e-
mi um -gra de unleaded gasolin ewit han oct ane
num berofatleas t91 AKI/95 RON.
As ate mp orarymeasur e,ifth ere commen dedfuel
is no tav ailabl e,youma yalso refuel with regula r
unlea dedgasolin eof atleas t87 AKI/91 RON.
This mayre duce engineoutput andincrease fuel
consum ption.
Ne verre fuel using gasolin eof alowe rRO N.
* NO NO
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: 344344
Te
ch nica ldat a

#
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 Onthehttps://www .mbusa.com(USAonl y)
Inf Inf
or or
mation onadditiv mation
onadditiv esing es
ingasoline (v asoline
(vehicles with ehicles
with
g g
asoline engine) asoline
engine)
Obser vetheno teson oper ating0uids
(/ page342).
* NO NO
TE TE
Damag efrom use ofunsu itable
addit ives Ev
en small amoun tsof thewrong 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 ationwithaMer cedes-Benz Service Cen-
te r,mix thefuel withth ecleaning additivere com-
mende dby Mer 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
To t To
tal fuel t al
fuel tank capacit y ank
capacit y Mod
el Mod
el
GL C300 4MATIC 17.4ga l(66.0 liter s) RR
eser v eser
ve fuel t e
fuel tank ank
ModelModel
GL C300 4MATIC 1.9gal(7.0 liter s) Engine
oil Engine
oil NNo o
t t
es on engine oil es
on engine oil
Obser vetheno teson oper ating0uids
(/ page342). *
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. Te
ch nica ldat a
345 345

#
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. Mer
cedes-Benz recommen 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 spe
ci/cation Mode
l Mode
l MB-Fr MB-F
reig eig
abe orMB- abe
orMB-
Appro v Appro
val al
GL C300 4MATIC 229.51,229.5 2,
229.6 1,229.7 1,
229.7 21)
1) recommended forlo we stpos sible fuel consu mption (lowe stSA E
viscosity classineac hcase; observepossible restr ictio ns ofthe
appro vedSA Eviscosity classes) 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.Possible restr iction sof theappr oved
SA Eviscosity classesmustbeobser ved.
Engin eoil Engin
eoil /lling /lling
capacity capacity
ModelModel
Capacity Capacity
GL C300 4MATIC 6.3USqt(6.0 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
Obser
vetheno teson oper ating0uids
(/ page342). &
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 regula rly re placed ataqu 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
(/ page342). &
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. 346346
Te
ch nica ldat a

DisplaDispla
ymessag y
messag es P es
Possible causes/conseq ossible
causes/conseq uencesand uences
and0050 0050
Soluti ons Soluti
ons
00B6
Fuel Level Low *T
hefuel suppl yhas dropped intoth ere ser verang e. #
Refuel .
00B6 Gas Cap Loose *T
hefuel /ller capisno tclosed correctl yor thefuel system isleaking. #
Close thefuel /ller cap. #
Ift If
the fuel he
fuel /ller /ller
capw cap
was alr as
already pr eady
proper l oper
ly closed: y
closed: consult aqu ali/ed special istwo rkshop. TT
r r
ansmissi on ansmissi
on 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
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. Displa
ymessag esand warning/in dicatorlam ps
367 367

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 OilAtNext
Ref ueling *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. #
Chec kth eengine oilleve lwhen next refuel ing.
Ad dengin eoil (/ page275).
No teson eng ineoil(/ page345).
00B3
Ch eck Engine OilLeve l
(Add 1qu art) *D
ispla ymessa geonl yfo rcer tain engines:
The engine oilleve 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 275).
No teson eng ineoil(/ page345). 400400
Displ
aymessag esand warning/in dicatorlam ps

SS
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 404)
00E9 Seatbelt(/page404)
Ù Powe rst eer ing (/ page405)
ÿ Coolanttemp eratur e(/ page406)
00B9 Enginediagnost ics(/ page406)
003D Electricalmalfunction (/page406)
00B6 Reser vefuel with fuel /ller 0aploca -
tio nind icat or (/ page 406)
0024 Electricpar king brak e(yello w)
(/ page409)
0049 USA:electr icpar king brak e(red)
(/ page409)
0024 Canada:electricpar king brak e(red)
(/ page409)
00C6 USA:Recuper ativeBr ak eSy stem
(/ page409) 004D
Canada:brak es (yello w)
(/ page409)
0027 USA:brak es (red) (/ page409)
004D Canada:brak es (red) (/ page409)
L Distance warning (/ page412)
Ó ActiveBr ak eAssi st(/ page412)
ê ActiveBr ak eAssi st(/ page412)
0025 ABS(/page412)
00E5 ESP®
(/ page412)
00BB ESP®
OFF (/page412)
0077 Tire pressur emonit oring system
(/ page415)
0060 Standi nglights (/ page116)
0058 Lowbeam (/page116)
0057 Highbeam (/page117)
003E003D Turn sign allights (/ page117)
005E Rear fogligh t(/ page116)
Symb olsont Symb
olsonthe centr he
centr aldis pla y: al
displ ay:
É Drive Aw ayAss ist(/ page215) Dis
playmes sage sand warning/in dicatorlam ps
403 403

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

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
003D
Electr icalmalfunct ionwarn-
ing lamp *T
heredelectr icalmalfuncti onwarning lampis lit.
Ther eis amalfunction intheelectr ics. #
Notethemessag eson theinstr ument display.
00B6
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.
00B6
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 . 408408
Dis
playme ssag es and warning/in dicatorlam ps