2021 MERCEDES-BENZ GT COUPE cooling

#
Press the005A button.
Switc hof fth eA/C function onlybr ief lyother‐
wise thewindo wsmayfo gup mor equ ickl y.
Con densation maydr ip from theunder sideof
th eve hicle when cooling modeisactiv e.This is
no ta sign that ther eis amalfunct ion. Se
tting climat econtr olto aut omatic mode In
automatic mode, these tte mp eratur eis con ‐
tr olled andmaint ained atacon stant leve lby the
air suppl y. #
Press the 0058 button. #
Toswitc hto manu almode :pr es sth e H
or 008F button. Climat
est yle Clim
atest yle fun ction
The follo wing climat est yles areav ailable inaut o‐
mat icmode :
R FOCUS: highairflow ,slight lycooler setting
R MEDIUM: mediumairflow ,st andar dse tting R
DIFFUSE: low air flow ,slight lywa rmerand
dr aft-fr ee setting
Ad jus tingthe climat emode settin gs
Mu ltimed iasystem:
4 Vehicle 5
b Climate Control
5 Climate Mode #
Select FOCUS, MEDIUMorDIF FUS E.
% Tofeel theef fect of theclimat est yle, the
0058 function mustbe activ e(/ page91 ). Ac
tiv atin g/deac tivatin gthe climat eco ntr ol
syn chronizat ionfunction viathecontr ol
pa nel Climat
econ trol can besetcen trall yusing the
sync hronization function.Thetemp eratur eand
air distribution settings forth edr iver's side will
be adop tedaut omatic allyfo rth efront passeng er
side. #
Press the0 button.
The sync hroniz ation function willbedeactiv ated
if th ese ttings forone oftheot her climat ezones
ar ech ang ed. Re
mo ving conde nsatio nfrom the windo ws Wi
ndo wsfogg ed up ontheinsid e #
Press the 005A button. #
Press the 0058 button. #
Ifth ewindo wscontinu eto fogup: press the
0064 button.
Wi ndo wsfogg ed up ontheout side #
Swit chon thewindshield wipers. #
Press the 0058 button. Switc
hingair-recir culation modeon/off #
Press the0072 button.
The interior airwill berecir cul ated.
Air -reci rculati onmod eaut omat icallyswit ches to
fr esh airmode afte rsome time.
% Ifair -recir cula tion mode isswi tched on,the
windo wsmayfo gup mor equ ickl y. Swi tchon
ai r-re cir cul ation mod eonly briefly. Climat
eco ntro l 91

Br
ak esy stem No
teson thebr ak esy stem
The brak esy stem ofyour vehicle isdesigned for
hea vyloads. Therefor e, ther ema ybe noise when
br aking. Theloads intheent ire br ak esy stem
whic hoccur whendriving onara ce trac kare sig‐
nif ica ntlygr ea terth an those during normal oper‐
ation.
The increased brak efo rc es and temp eratur es
when driving onara ce trac kinhe rentl yle ad to
inc reased wearofthebr ak esy stem.
Chec kth econ dition andgeome try of thebr ak e
co verpla tebef oreusing theve hicle onara ce‐
tr ac k.
Obser vetheinf ormation onthecooling ofcom‐
ponen tswhic har esubject toloads when oper‐
at ed on ara ce trac k(/ page 102).
Br akin gwi th ABS
Re peat edhar dbr aking within theABS control
ra ng ecau ses highe rte mp eratur esinthebr ak e
sy stem than con trolled brakin gshor tly bef ore
th eABS control limit. Br
ak epad wear
The inner andouterbrak epa dsma yal so suf fer
"t aper edwear". This couldlead topoor pedal
fe el. Ther efor e, youmus talso checkth econ di‐
tion ofthebr ak epads beforeand afte ruse ona
ra ce trac kas partof ast andar dch eckfo rwe ar.
Br ak edis cs
Obse rveth einf ormation onthecooling ofcom‐
ponen tswhic har esubject tostra in inrace trac k
ope ratio n(/ page 102).
Dep endingontheve hicle's equipment, theAMG
cer amic high-per form anc ecom posit ebr akin g
sy stem isins talled inyour vehicle. Theassess‐
ment ofwe armus tth er efor ebe car ried out
using aspecial measurementprocedur e.The
br ak es aremeasur edusing thecur rent cond ition
of thecer amic composit emat erial asacr iter ia
fo rasse ssing thewe arins tead ofasses singth e
re sidua lth ickn ess.
Depe ndingon thetype ofbrak edisc, thefo llo w‐
ing arecom binat ionsused tomeasu rethewe ar
of thebr ak ediscs:
R Carbon-c eramic brak edisc: -
Visual assessment ofthebr ak edisc for
mec hanica ldama ge
- Wearmeas uremen tusin gth eindicat or
fi eld method; alternativ elyusing thePr o‐
ceq Carbo teq®
measu ring device (e.g. in
th eAMG Perfor mance Centeror atAMG
Tr ac kda ys)
R Gray cas tiron brak edisc:
- Visual check
- Crac kte st
- Wearthickn ess test
The ventil ation holeson gray cas tiron fricti on
ri ngs ofstandar dbr ak edisc sin par ticular could
bec ome blockedby brak edus t.Ther efor e, check
th eve ntil ation holesbefore usin gth eve hicle on
a ra ce trac kand clean them ifneces sary.Ifnec‐
essar y,also clean thedr illed holes.
Br ak efluid
Chec kth efo llo wing proper tiesofthebr ak efluid
bef oreeac huse onara ce trac k:
R Boil ingpoint
R Fillle ve l Dr
iving and parking 10
3

When
driving onara ce trac k, mak esur eth at the
br ak efluid isno tmor eth an 12 mont hsold.
Br ak ecali per,br ak ehose sand brak eline s
Chec kth efo llo wing fordama geeac htime
bef oredr iving theve hicle onara ce trac k:
R The dustboo tson thebr ak ecaliper s
R The brak ehoses andbrak elines
Re place them ifneces sary.
Br ak eco olin g
Spe cialai rdef lect or sand chann elsareins talled
on thefront and rear axle sso that thebr ak es
ar ecooled sufficie ntly.The ysupply thebr ak e
discs withcooling air.Chec kth at they arein per‐
fe ct condi tionandcorrectl yins talled eachtim e
bef oredr ivin gth eve hicle onara ce trac k. Exces ‐
si ve wearcan becaus edbydriving overcurbs,
fo rins tance. Forth is reason ,re gular lych eck
th ey areall com pleteand installed securely.
In addi tion, checkth at theair guide platesare
seat edsecur elyand clean beforeand afte rdr iv‐
ing theve hicle onara ce trac k. Obser
vetheinf ormation onthecooling ofcom‐
ponen tswhic har esubject toloads when drivin g
on ara ce trac k(/ page 102). Whee
lsand tires No
teson wheels
* NO
TERestrictions relatin gto suspension
se ttin gsand driving charact eristic s Dr
ivin gwit hwheels withdif fering dimens ions
of thefo llo wing featur escoul dlead torestric‐
tions relatin gto thesuspension settings and
dr iving charact eristic sof theve hicle:
R Diame ter
R Wheel offset #
Onlyuse thewheels prov ided by
Mer cedes- AMGforuse onara ce trac k. #
Onlyuse wheels withappr ovedge ome‐
tr y. Do
notus eslic k tires. Suspensi on and body
components mayot her wise besubject edto
exc essiv elyhigh loads. Obser
vethefo llo wing noteson chang inga
wheel:
R Chan gethewheels afte r9,320 miles
(1 5,000 km)onara ce trac kat thelat est.
R Toensur econ cent ricity and late ra ltr uenes s,
ch eckth ewheel contact surface fordama ge
when chang ingawheel. Theseshoul dalso
be meas ured intheev ent ofimbalance.
The wheel boltsaresubject edtohigh wearwhen
used onara ce trac k. To ensur eth ewheels are
bolt edsecur elyon aper manen tbasis, replace
th ewheel boltsinthefo llo wing situat ions:
R Afterapp roxima tely 620 miles(1 ,000 km) on
a ra ce trac k.
R Afterte nbo lting proce duresat thelat est.
No teson tires &
WARNIN GRisk ofinju rythro ugh dam‐
ag ed tires
Dam aged tires can caus etir epr ess ureloss . 10
4
Driving and parking

Model
Capacity
All model s1 .8gal(7 .0 liter s) No
teson brak efluid Obser
vetheno teson oper ating fluids
(/ page32 4). &
WARNIN GRisk ofan acci dent dueto
va por pockets form ing inthebr ak esy s‐
te m
The brak efluid constantly absor bsmoi stur e
fr om theair .This lowe rstheboiling pointof
th ebr ak efluid. Ifth eboiling pointistoolow,
va por pockets ma yfo rm inthebr ak esy stem
when thebr ak es areapplied hard.
This causes thebr aking effect to be
im pair ed. #
Have thebr ak efluid rene we dat the
specif iedinterva ls. Ha
ve thebr ak efluid regular lyreplaced ata
qu alif ied spec ialistwo rkshop. Onl
yuse abr ak efluid appr ovedby Mer cedes-
Benz accor dingtoMB-F reigabe orMB- Appr oval
33 1.0. Co
olan t No
teson coolant
Obser vetheno teson oper ating fluids
(/ page32 4). &
WARNIN G‑Ri sk offire and injuryfrom
ant ifreez e
If ant ifreez ecom esintocon tact with hot
com ponent partsintheengine compart‐
ment ,it ma yignit e. #
Allo wtheengine tocool down before
ad ding anti freeze . #
Makesur eth at no ant ifreez espills out
ne xt to thefiller open ing. #
Thor oughl yclean offan yant ifreeze
fr om com pone ntpar tsbef orest ar tin g
th eve hicle. *
NO
TEDama gecau sed byinc orrect cool ‐
ant #
Onlyus ecool antthat has been pre‐
mix edwithth ere qu ired ant ifreeze pro‐
te ction.
Inf ormati ononcool antisavailable atthefo l‐
lo wing locations:
R IntheMer cedes- BenzSpecif ication sfo r
Oper ating Fluids 310.1
- Athttps: //bevo.mer cedes-b enz.com
- IntheMer cedes- BenzBeVoapp
R Ataqu alif ied spec ialistwo rkshop *
NO
TEOverhea ting athigh outsid ete m‐
per atur es If
an inapp ropr iat ecoolant isused, the
engine cooling system isno tsuf ficie ntlypr o‐
te cted agains tov erheating andcorrosion at
high outside temp eratur es. #
Alw aysuse coolant approvedby
Mer cedes-Ben z. 328
Tech nica lda ta

#
Obser vetheins truction sin the
Mer cedes-Ben zSpecif ications forOper‐
ating Fluids310.1. Ha
ve thecoolant regular lyreplaced ataqu alif ied
spec ialistwo rkshop.
The propor tionofcor rosion inhibit or/antifr eeze
concen trat ein theengine cooling system should
be:
R Aminimum of50% (antifr eezeprotect ion
do wn toappr oximat ely-3 5°F (-37°C))
R Amaxim umof55% (antifreeze protect ion
do wn to-49°F (-45°C))
Co olant capacity Mode
lC apacity
Mer cedes -AMG GT 13.5 US qt
(1 2.8 lite rs)
Mer cedes- AMGGTC1 4.6USqt
(1 3.8 liter s) No
teson windshield washer fluid Obser
vetheno teson oper ating fluids
(/ page32 4). &
WARNIN G‑Ri sk offire and injuryfrom
wind shieldwa sher concen trat e
Wi ndsh ield wa sher concen trat eis highly
fl ammab le.Itcoul dign ite if it com esinto
con tact with hotengine component partsor
th eex haus tsy stem. #
Mak esur eth at no wind shieldwa sher
concen trat espills outnext to thefiller
open ing. *
NO
TEDama getotheex terior lighting
due touns uitable windshieldwa sher fluid Uns
uitable windshieldwa sher fluid maydam‐
ag eth eplas ticsur face oftheex terior light‐
ing. #
Onlyuse windshield washer fluid whic h
is also suitable foruse onplastic sur fa‐
ces, e.g.MBSumm erFitor MB Winter‐
Fit. *
NO
TEBlocked spr aynozzl escau sed by
mixing windshieldwa sher fluids #
Donotmix MBSum merFitand MBWin‐
te rFit withot her windshield washer flu‐
ids. Do
notuse distilled orde- ionizedwa teras thefill
le ve lsen sor maybe trigg ered erro neou sly.
Re comme ndedwindsh ield wa sher fluid:
R Abo vefreezing point:e.g. MBSummerFi t
R Belo wfreezing point:e.g. MBWinterFi t
Fo rth ecor rect mixi ngratio ,re ferto theinf orma‐
tion ontheantif reeze container .
Mix thewa sher fluid withth ewindshield washer
fl uid allyear round . Re
frig er ant No
teson refrig er ant
Obser vetheno teson oper ating fluids
(/ page32 4). Te
ch nica lda ta 329

Engine
Displa
ymes sages
Possible causes/conseq uencesand0050 0050
Solutions
To switch engine off,press
and hold Start/S topbut-
ton foratleast 3secs. or
press 3times. *Y
ouhave pressed thest ar t/ stop butt onwhile theve hicle isin mo tion. #
Information aboutswitchingoffth eengine whiledriving (/page94 ).
00BD
Check Coolant LevelSee
Operat or'sManual *T
hecoolant leve lis toolow.
* NO
TEEngi nedama gedue toinsuf ficie ntcool ant #
Avoid long journeys wit hins ufficie ntcool ant. #
Addcoolant (/page266 ). #
Have theengine cooling system checkedat aqu alif ied spec ialistwo rkshop.
ÿ
Coola ntToo HotStop Vehi-
cle Turn Engine Off *T
hecoolant istooho t. #
Pull overand stop theve hicle safely and switc hof fth eengine, paying attent ion toroad and traffic condi tions. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. 34
6
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
St op Vehicle LeaveEngine
Running WaitTransmission
Cooling *T
hetransmission isove rheating. Pullingaway ma ybe temp orarily im pair edornotpossible. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng. #
Lea vetheengine running . #
Waitunt ilth edispla ymessag edisappear sbef orepulling away.
0080 Transmission OilCooling
Malfunction *T
hetransmission's coolantpumpis faulty .The transm issionmayove rheat. #
Select thePerform ancemenu intheon- board computerand checkth etransmission oiltemp eratur e. #
Avoid ahigh load withadynamic driving style. #
Iftra nsmiss ionoiltemp eratur esarebelo w24 8°F (120 °C) ,dr ive on tothenear estqu alif ied spec ialistwo rk‐
shop.
0080
Transmission OilOverhea-
ted Drive withCaution *T
ransmi ssion positio nM and thete mp orarymanual driving progr am areno long eravailable. Theengineoutput is
re duced dependin gon theove rheating. #
Letth etransmission oilcool down bydriving defensiv elyuntil thedispla ymessag edisappear s.
Auxiliary BatteryMalfunc-
tion *T
heauxilia rybatt eryfo rth etra nsmiss ionisno long erbeing charge d. #
Consult aqu alif ied spec ialistwo rkshop. #
Untilthen, alwaysselect parkposition 005Dmanually beforeyo uswit choffth eengine. #
Beforelea ving theve hicle, apply theelectr icpar king brak e. 350
Displa ymessag esand warning/ indic ator lam ps