2023 MERCEDES-BENZ GLC COUPE Owners Manual

+
ENVIR ENVIR
ONMENT ONMENT
ALNO AL
NOTE TE
Pollution ofthe
en vironment duetoirre sponsi bledisposal
of oper ating0uids Incor
rect disposal ofoper ating0uids can
cause consid erable damag eto theen viron-
ment. #
Dispose ofoper ating 0uids inan environ-
ment allyre sponsi blemann er. Oper
ating0uids include thefo llo wing:
R fuels
R lubr icants
R Coolant
R Brak e0uid
R Windsh ieldwasher 0uid
R climat econt rolsy stem refrig er ant
Onl yus eproduc tsappro vedby Mer cedes-Be nz.
Dam ageca use dby theuse ofproducts that have
no tbee napp rove dis no tco veredby the
Mer cedes-Be nzwarrant yor good willgestu res. The
oper ating0uids approvedby Mer cedes-Be nz
ca nbe iden ti/e dby thefo llo wing inscriptions on
th econt ainer :
R MB-F reigabe (e.g. MB-F reigabe 229.51)
R MB- Appr oval (e.g .MB -Appr oval 229. 51)
Fu rther informatio non appr ovedoper ating 0uids:
R intheMer cedes-Benz Speci/cations forOper -
ating Fluids byent ering thedesignation
- athttps://be vo.mercedes -benz.com
- intheMer cedes-Benz BeVoApp
R Ataquali/ed specialistwo rkshop &
W W
AR NING AR
NING Riskof/reor explosion from
fuel
Fu els arehighl y0amma ble. #
Fire ,open 0ames, smokingand creati ng
spar ksmust beavo ided. #
Beforeand during refuel ing, switcho.
th eve hicle and,ifins talled, thestation-
ar yheat er. &
W W
ARNIN G ARNIN
GRisk ofinjur yfrom fuels
Fu els arepoisonous andhazar dous toyour
healt h. #
Donotsw allo wfuel orletit come into
cont actwithskin, eyes orclo thing. #
Donotinhale fuelvapor . #
Keep childr enawa yfrom fuel. #
Keep door sand windo wsclosed during
th ere fuel ingproces s.
If yo uor other peopl ecome intocont actwith
fu el, obser vethefo llo wing: #
Immedia tely rinse fuel o.your skin with
soap andwater. #
Iffuel comes intocont actwithyo ur eyes,
immediat elyrinse them thor oughl ywit h
clean water. See kme dica lat tention
imm ediately. #
Ifyo usw allo wfuel, seek medical atten-
tion immediat ely. Do notinduce vomit-
ing. Te
ch nica ldat a
343 343

#
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

#
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. *
N NO O
TE TE
Damag ecaused byincor 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, thecooling
sy stem isno tsu1cien tly pr otect edagainst
ov erheating andcorrosion athigh outsi de
te mp eratur es. #
Onlyuse coolant approvedfo r
Mer cedes-Be nz. #
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 thecool-
ing 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
ant Cool
ant/lling /ll
ing q q
uantity uantity
Engine cooling cir Engine
cooling circuit cuit
(/llin g (/
llin gcap acitywit cap
acitywit hhea t- h
hea t-
ing) ing)
ModelModel
Capacity Cap
acity
GL C300 4MATIC 13.7USqt
(13.0 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
(/ page342). &
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. Te
ch nica ldat a
347 347

*
N N
O O
TE TE
Dam ageto 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. *
N NO O
TE TE
Bloc kedspr aynozzles cause dby
mixing windshield washer 0uids #
Donotmix MBSummerF itand MBWin-
te rF itwit hot her wind shield washer 0u-
ids. Do
notuse distilled orde-i onised water. Ot her -
wise, the/ll leve lsensor maybe trigg ered erro ne-
ous ly.
Re commen dedwindshi eldwasher 0uid:
R Above freez ing point :e.g. MBSum merFit
R Below freez ing point :e.g. MBWinterF it
Fo rth ecor rect mixin gra tio, referto theinf orma-
tion ontheantifr eeze container . Mix
washing waterwit hwindshield washer 0uidall
ye ar round. RR
efr efr
ig ig
er er
ant ant
NNo o
t t
es on r es
on refr efr
ig ig
er er
ant ant
Obser vetheno teson oper ating0uids
(/ page342) .
* NO NO
TE TE
Damag edue toincor rect refrig er ant If
anon- appro vedre frig er ant isus ed ,th ecli-
mat econtr olsystem maybe damag ed. #
US US
A: A:
use onlyR‑134a refrig er ant . #
Canad a: Ca
nad a:useonl yR‑12 34yfre frig er ant . *
N NO O
TE TE
Dama getotheclimat econtr olsys-
te m due toincor rect refrig er ant comp res-
sor oil #
Onlyuse refrig er ant comp ressor oilthat
has been approvedby Mer cedes-Be nz. #
Donotmix theappr ovedre frig er ant
co mp ressor oilwithadi.er entrefrig er -
ant comp ressor oil. Wo
rkon theclimat econtr olsystem maybe car -
ri ed out onlyat aqu ali/ed special istwo rkshop. All
applic ableregula tions aswellas SAEstandar d
J639 must beadher edto.
The informa tion labelforth eclimat econtr olsys-
te m rega rding there frig er ant type and there frig-
er ant comp ressor oil(PAG oil) islocat edon the
inside ofthehood. Inf
ormation label(exa mp le–US A)
1 Hazar dand service warning symbo ls
2 Refrig er ant /llin gca pa city
3 Applicab lestand ards
4 PAGoil par tnumber 348348
Te
ch nica ldat a

5
GWP(gl oba lwa rming potential )of there frig er -
ant used
6 Refrig er ant type Inf
orma tionlabe l(e xa mp le–Canada)
1 Hazar dand service warning symbo ls
2 Refrig er ant /llin gca pa city
3 Applicab lestand ards
4 PAGoil par tnumber
5 GWP(gl oba lwa rming potential )of there frig er -
ant used
6 Refrig er ant type Sym
bols1 indicat eth efo llo wing:
R Possible dangers
R Havin gmaint enanceworkcar ried out ata
qu ali/ed special istwo rkshop
F F
illi ng capacit yf illi
ng capacit yfor r or
ref r ef
rig ig
er er
ant and PA ant
and PAGoil G
oil
R R
efr efr
ig ig
er er
ant ant
/lling /lling
capacity capacity
ModelModel
GL C300 4MATIC 22.2±0.4 oz
(630 ±10 g) FF
illin gcapacity f illin
gcapacity for PA or
PAGoil G
oil ModelModel
GL C300 4MATIC 2.8±0.4 oz
(80 ±10 g) VV
ehicle data ehicle
data VV
ehicle dimensio ns ehicle
dimensio ns The
heights speci/ed mayva ry as are sult ofthe
fo llo wing fact or s:
R tires
R load
R condi tionofthesuspension
R optional equipment 1
Height whenopened
2 Headr oom Te
ch nica ldat a
349 349

Heigh
twh en ope ned andheadr Heigh
twh en ope ned andheadroom oom
Mode
l Mode
l 1 1
Heigh t Heigh
t
wh en ope ned wh
en ope ned 2 2
Hea dr Hea
droom oom
GL C300
4MA TIC 87.9
in
(2 232 mm) 77.0
in
(1 956 mm) VV
eh icledim ensions eh
icledim ensions GLGL
C300 4MA C
300 4MATIC TIC
Ve hicle length1 86.3in(4731 mm)
Ve hicle widthincl ud-
ing outs idemirrors 82.5
in(2096 mm)
Ve hicle height 63.9in (1622 mm)
Wheel base 113.1in (2873 mm)
Tu rning circle 38.71T(11.80 m) WW
eights andloads eights
andloads Bear
inmind that items ofoptio nal equipme nt
incr ease thecurb weight andreduce thepa yload. Ve
hicle-spe ci/cweight information canbefound
on theve hicle identi/cation plate. Maxim
umdesig nspeeds Maxim
umdesig nspeeds NNo o
t f t
for Mer or
Mer cedes- cedes-
AMGv AM
Gvehicle s: ehicle
s:
Missi ngvalues werenotav ailabl eat thetime of
going topress.
Maximum per Maximum
permissible speed missible
speed
All models TT
r r
ailer hitch ailer
hitch GenerGener
alno t al
no tes on t es
on the tr he
trailer hitch ailer
hitch Modi/ca
tionsto thecooling system maybe nec-
essar y,depending ontheve hicle model .Re tro/t-
ting atrai le rhi tc his pe rm issible onlyif ato wing
capacity isspeci/ed inyour vehicle docume nts.
Fu rther informatio ncan beobt aine dat aquali/ed
special istwo rkshop. 350350
Te
ch nica ldat a