MERCEDES-BENZ GLC COUPE 2021 AMG Service Manual

#
Position hubcap1and turnuntil itis in the
ri ght position. #
Position socket2 onhubcap 1. #
Position lugwrenc h3 onsoc ket2 and
tig hten hubcap 1.
Spe cified tigh tening torq ue: 18lb-f t
(25 Nm). Wheels
andtires 39

Oper
ating fluids Fu
el No
teson fuel grades forMe rcedes- AMGvehi‐
cle s
Obser vetheinf ormation onoper ating fluids in
th eve hicle Operator's Manual.
* NO
TEDama gecau sed bythewr ong fuel Ev
en small amounts ofthewr ong fuelcould
re sult indamag eto thefuel system, the
engine andtheemission control system. #
Onlyre fuel withlow- sulfur gasoline.
This fuelmaycont ainupto10%ethanol by
vo lume. Your vehicle issuit able foruse with
E1 0fuel .
Ne verre fuel withone ofthefo llo wing fuels:
R Dies el
R Gasoline withmor eth an 10%ethanol by
vo lume, e.g.E15, E8 5,E100 R
Gasoline withmor eth an 3% methano lby
vo lume, e.g.M15,M30 ,M85 ,M1 00
R Gasoline withadditiv escon tainin gme tal
If yo uha ve acc iden tally re fuel edwithth e
wr ong fuel: #
donotswit chtheignition on. #
Consult aqu alif ied spec ialistwo rkshop. If
th eav ailable fuelisno tsuf ficie ntly low in sul‐
fur ,th is can produce unpleasant odors.
Onl yre fuel using unle adedpr emiu mgrade gaso‐
line withat leas t91 AKI/95 RON.
As ate mp orarymeasur e,ifth ere comme nded
fue lis no tav ailable, youma yalso useunle aded
re gular gasoline: Notetheoct ane number onthe
inf ormatio nlabel inthefuel filler flap (see the
ve hicle Operator's Manual).
Ne verre fuel using gasoline withan eve nlowe r
RO N. *
NO
TEPrema ture enginewearthro ugh
unle aded regular gasoline Im
pair ment ofthelong evity and perform anc e
of theengine.
If unleaded premium grade gasoline is
una vailable andyouha ve torefuel using
unle adedre gular gasoline: #
Onlyfill th efuel tank tohalf fullwith
unleaded regular gasoline andrefill as
soon aspossible withunleaded pre‐
mium grade gasoline. #
Donotdr ive at themaximum design
speed. #
Avoid sudden accelerationandengine
speeds over3000 rpm. Fu
rther information onfuel isavailable atthefo l‐
lo wing locations:
R ataga sst atio n
R ataqu alif ied spec ialistwo rkshop
R onthehtt ps:/ /www .mbusa.c om(USAonl y) 40
Tech nica lda ta

Ta
nk cont entand reser vefuel
Capacity Model
Total cap acity
Al lmo dels 17.4 gal(66. 0liter s) Model
ofwhic hre ser ve
fuel
All model s1 .8gal(7 .0 liter s) Qua
lityand capa cityofengine oil MB
-Fre igabe orMB- Appr oval Model
Engineoilspec ifica‐
tion s
Mer cedes -AMG
GL C43 4MA TIC 229.
5
229. 6*
All other models 229.5*
229. 51 *
Re comme ndedforlo we stpossible fuelcon‐
sum ption (lowe stSA Evis cos ityclassineach case
;obs erve possible restrictions ofthe
appr ovedSA Evis cos ityclasse s).
To achie vethelowe stpossible fuelconsum ption,
it is recomme ndedtouse theengine oilspecif i‐
cation smar kedin theta ble forth elowe stSA E
viscosi tyclass .Po ssible restrictions ofthe
appr ovedSA Evis cos ityclasse smu stbe
obser ved.
Mer cedes- AMGGLC63 4MA TIC+ and
Mer cedes- AMGGLC63 S4MA TIC+: onlyuse
engin eoils SAE0W -40 orSA E5W -40.
The follo wing values referto an oilchang e,
inc ludin gth eoil filt er .
Re plac eme ntamoun t Mode
lR eplacement
am ount
Mer cede s-AMG
GL C43 4MA TIC 6.
9US qt(6.5liter s)
All other models 9.5USqt(9.0 liter s) Cool
antcapacity Model
Capacity
Mer cedes- AMG
GL C43 4MA TIC 10
.0 US qt(9.5 lite rs)
All other models 11.8 US qt
(1 1. 2 liter s) Fi
lling capacityforre frig er ant and PAGoil Model
Refrig er ant
Mer cedes- AMGGLC
43 4MA TIC 22.2
±0.4 oz
(630 ±10 g)
All other models 21.5 ±0.4 oz
(6 10 ±10 g) Model
PAGoil
All model s2 .8±0.4 oz
(80 ±10 g) Te
ch nica lda ta 41

Ve
hicl edata Ve
hicl edimens ions The
heightsspeci fied mayva ry as are sult ofthe
fo llo wing fact or s:
R Tire s
R Load
R Conditio nof thesuspension
R Option aleq uipment Missing
values werenotav ailable atthetime of
going topress. Height
whenopened Model
1 1
Height
when
opened 2 2
Head‐
ro om
All mode ls Ve
hicl edimens ions All
models
Ve hicle widthincluding out‐
side mirrors 82.5
in
(2096 mm)
Whee lbase 113.1 in
(28 73mm)
Tu rning radius 40ft
(1 2.10 m) Ve
hicl elen gth Model
Vehicl e
len gth
Mer cedes- AMGGLC43
4MA TIC 18
6.2 in
(4 72 9mm)
All other models 187.0 in
(4 74 8mm) Ve
hicl eheig ht Model
Vehicl e
heig ht
Mer cedes- AMGGLC43
4MA TIC 62.5
in
(1 58 7mm)
All other models 62.4in
(1 58 4mm) We
ight sand loads Please
observethefo llo wing notesfo rth especi‐
fi ed vehicle data:
R Items ofoptional equipment increase the
curb weight andreduce thepa yload. 42
Tech nica lda ta

Ro
ofload Mod
el Maximumroof load
All mode ls 165lb (75 kg ) Maximum
designspee ds The
follo wing values onlyappl yto vehicles with
th eAMG Driver's Packag e.
Ma xim um desi gnspee ds Mer
cedes -AMG GLC43
4MA TIC
1s tge ar 27mph(4 3km/h)
2nd gear 44mph(71 km/h)
3r dge ar 63mph(1 02 km/h)
4t hge ar 88mph(1 41 km/h)
5t hge ar 119mp h(191 km/h)
6t hge ar 130mp h(210 km/h)
7t hge ar 130mp h(210 km/h) Mer
cedes -AMG GLC43
4MA TIC
8t hge ar 130mp h(210 km/h)
9t hge ar 130mp h(210 km/h) Mer
cedes -AMG GLC63
4MA TIC+
1s tge ar 34mph(5 4km/h)
2nd gear 56mph(9 0km/h)
3r dge ar 81mp h(1 30 km/h)
4t hge ar 112mp h(1 80 km/h)
5t hge ar 149mp h(2 40 km/h)
6t hge ar 167mp h(2 70 km/h)
7t hge ar 167mp h(2 70 km/h)
8t hge ar 167mp h(2 70 km/h)
9t hge ar 167mp h(2 70 km/h) Mer
cedes- AMG GLC63 S
4MA TIC+
1s tge ar 34mph(5 4km/h)
2nd gear 56mph(90 km/h)
3r dge ar 81mp h(1 30 km/h)
4t hge ar 112mp h(1 80 km/h)
5t hge ar 149mp h(2 40 km/h)
6t hge ar 174mp h(2 80 km/h)
7t hge ar 174mp h(2 80 km/h)
8t hge ar 174mp h(2 80 km/h)
9t hge ar 174mp h(2 80 km/h) Tr
aile rhitc h Gene
ralno teson thetrailer hitch Modif
ications totheengine cooling system may
be neces sary,dependin gon theve hicle model.
The retrof itti ng ofatrai le rhi tc his only perm issi‐ Te
ch nica lda ta 43

ble
ifato wing capac ityisspec ified inyour vehi‐
cle documents.
Fu rther information canbeobt ained ataqu ali‐
fi ed specialis two rkshop. To
wing capacit y The
tongu ewe ight isno tinc luded intheto wing
capac ity.
Missi ngvalues werenotav ailable atthetime of
going topress.
To wing capacit y,brak ed (at aminim umstar t-
of fgr adeabi lityof12%) Model
Towing capacit y,
br ak ed
All models (1588 kg) To
wing capacit y,unbr aked Model
Towing capacit y,
unbr aked
Mer cedes- AMG
GL C43 4MA TIC
Mer cedes- AMG
GL C63 4MA TIC+
Mer cedes- AMG
GL C63 S4MA TIC+ Maximal
tongue weight andload capacity *
NO
TEDama gecau sed bythetrailer
comin gloose If
th eto ngu ewe ight used istoolow, the
tr ai le rma ycome loose . #
Theto ngu ewe ight mustno tbe belo w
11 0.2 lbs(50 kg). #
Use ato ngu ewe ight that isas clo seas
poss ibletothemaximum permissible
to ngu ewe ight . To
ngue weight Model
Maximum
to ngue
we ight
All models 280lb
(1 27 kg) Missing
values werenotav ailable atthetime of
going topress.
Load capacit y Model
Maximum
load
All models Pe
rm issible rear axle load (traile roper ation ) Miss
ingvalues werenotav ailable atthetime of
going topress. 44
Tech nica lda ta

Axle
load Mod
el Axleload
Mer cedes-AM G
GL C43 4MA TIC
Mer cedes-AM G
GL C63 4MA TIC+
Mer cedes-AM G
GL C63 S4MA TIC+ Te
ch nica lda ta 45

Disp
laymes sages Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
Elect ronic RearAxleDiffer -
ent ialLock Inoperat ive *T
heelectr onicrear axle lockin gdif fere ntia lis ino perativ e. #
Consu ltaqu alif ied spec ialistwo rkshop.
Electron icRear AxleDiffer-
ential LockCurrently
Unavaila ble *T
hemo torof theelectr onicrear axle lockin gdif fere ntia lis ove rheating. #
Letth eelectr onicrear axle lockin gdif fere ntia lcool down bydriving defensiv ely. Dr
iving systems Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
RACE START NotPossible
See Operator' sManual *P
ossible causes:
R The activ ation condit ionshave notbe en fulfilled (/page19 ).
RACE STARTCanceled *P
ossible causes:
R Youre leased theacceler ator pedal during RACE STAR T.
R Youdepr essedthebr ak epedal during RACE STAR T.
Yo ucan try RA CE STAR Tag ain at thene xt star t. 46
Displaymes sagesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ä Malfunct ionDrive atMax.
50 mph *T
heAMG adaptivespor tsuspension system ismalfunct ioning.Thevehicle's handling charact eristic sma ybe affec‐
te d. #
Donotdr ive at speeds great erthan 50 mph(80 km/h). #
Consult aqu alif ied spec ialistwo rkshop. Wa
rning and indicat orlam ps Dr
iving systems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ä Suspension warning lam p The
yello wAMG adaptivespor tsuspen sionsystem warning lam pis lit.
*T her eis amalfunction intheAMG adaptivespor tsuspension system. #
Notethemessag eson themultifunc tiondispla y. Dis
play messa gesand warning/ indic ator lam ps 47

Dr
ivin gsaf etysy stems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00BB
¤ The
yello wES P®
OFF warning lam psarelit while theengine isrunning .
* ESP ®
is de acti vated.
Ot her driving systems anddriving safetysy stems mayalso beinoper ative. &
WARNIN GRisk ofskid ding whe ndr ivi ng with ESP ®
de acti vated
ESP ®
do es notact tostabiliz eth eve hicle. Theavailabilit yof fur ther driving safetysy stems isalso limited. #
Drive on car efull y. #
Dea ctivateESP ®
only foras long asthesituation requ ires.
If ES P®
can notbe act ivat ed, ESP®
is malfun ctionin g. #
Have ESP ®
ch eckedimmediat elyat aqu alif ied spec ialistwo rkshop. #
Obser vetheno teson deactiv atingESP®
(/ page16 ). 48
Disp lay mes sagesand warning/ indic ator lam ps