2021 MERCEDES-BENZ GT COUPE tires

Dr
ivin gand parking ................................... 93
Dr iving ............................................ .............. 93
Ra ce trac kope ratio n........... .......................102
DY NA MIC SELE CTswitc h... ........................ 105
Au tomatic transmiss ion.............................. 108
Re fuel ing...... ............................................... 112
Pa rking ........................................................ 114
Dr iving and drivi ng safety systems .............1 20
Ve hicle towing instruct ions .........................1 45 Ins
trument Displa yand on-b oard
co mp uter ...... ............................................146
No teson theIns trument Displayand on-
boar dcom puter.......................................... 146
Ins trument Displayove rview .......................1 47
Ov ervie wof thebutt ons onthesteer ing
wheel ..........................................................1 48
Oper ating theon- boar dcom puter.............. 148
Ov ervie wof what issho wnonthemulti‐
func tion displa y... ....................................... 149
Ad jus ting theins trument lighting ................1 49 Vo
ice Contr olSy stem .............................. 150
No teson oper ating safety...........................1 50 Oper
ation....... ................................... .........150
Using theVo ice Cont rolSy stem effec‐
tiv ely <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011>...152
Esse ntialvo ice com mand s.......................... 152 Multimedia
system .................................. 163
Ov ervie wand oper ation .................. ............ 163
Sy stem settings .............................. ............ 172
AMG TRAC KPA CE ...................................... 182
Na vig ation .......................................... .........187
Te lephon e........................................ ...........2 12
Online andInterne tfunctions ..................... 235
Media ......................................................... 238
Ra dio .......................................................... 251
Sound .........................................................2 58 Maint
enanceand care....... ......................261
ASS YSTPL US service interva ldispla y.........2 61
Engi necompar tment............. ............. ........262
Cl ea ning andcare............. .......................... 268 Br
eak down assista nc e............ .................274
Emerg ency............. .......................... ........... 274 Fla
ttir e<0011001100110011001100110011001100110011001100110011001100110011
0011> <0011001100110011001100110011001100110011001100110011001100110011
0011><0011001100110011001100110011001100110011001100110011001100110011
0011>....275
Batt ery(v ehi cle) <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 281
To w star tin gor towing away <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 286
Elec trica lfus es<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 290 Whe
elsand tires <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 292
No teson noise orunusua lhandling char‐
act eristic s...................................................2 92
No teson regular lyinsp ecting wheels and
tir es ............................................................ 292
No teson sno wch ains ................................ 293
Ti re pressur e.............................................. 293
Loading theve hicle .................................... 299
Ti re labeling ................................................ 303
Def inition ofterm sfo rtir es and loading ..... 308
Cha nging awhee l..... ................................... 311
Emerg encysparewh eel............ ..................321 Te
ch nical data.......................................... 322
No teson tech nica lda ta <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 322
Ra dio equipment approvals forth eve hi‐
cle com ponent s... ....................................... 322
Ve hicle identif ication plate,VIN and
engine number overview ............................ 322 Cont
ents 3

*
NO
TEImpairment oftheoper ating effi‐
cie ncy ofthere stra int systems from
ins talling accessor ypar tsor from repair s
or we lding Air
bags andEmerge ncy Tensi oni ng Device s,
as wellas con trol unit sand sensorsfo rth e
re stra int systems, maybe installed inthefo l‐
lo wing areas ofyour vehicle:
R Door s
R Door pillars
R Doo rsi lls
R Sea ts
R Cockpit
R Instrument cluster
R Cen terconsole
R Lateral roof frame #
Donotins tallacc essor ypar tssuc has
audio systems inthese areas. #
Donotcar ryout repair sor we lding. #
Have afte rm arke tins tallation ofacc es‐
sor ies carried out ataqu alif ied spec ial‐
is two rkshop. Yo
uco uld jeopar dizeth eoper ating safetyof your
ve hicle ifyo uuse parts,tir es and wheel sas well
as acc essor iesreleva nt tosaf etywhic hha ve not
be en approve dby Mer cedes-Ben z.Saf ety-re le‐
va nt systems, e.g.thebr ak esy stem, maymal‐
func tion.Onl yuse Mercedes- BenzGenuineP arts
or par tsof equal qualit y.Onl yuse tires, wheels
and accessor ypar tsthat have been specif ically
appr ovedfo ryo ur vehicle model.
Mer cedes-Ben zGenuineP arts aresubject to
st rict qualit yins pec tions.Eac hpar thas been
spec iallyde veloped, manufactured orselec ted
fo rMer cedes-Benz vehicles andadap tedto
th em. Ther efor e, onl yMer cedes- BenzGenuine‐
Pa rts should beused.
Mor eth an 300,0 00 differe nt Mer cedes-Be nz
Ge nui neP arts areav ailable forMer cedes-Benz
model s.
All author ized Mercedes-B enzCent ersmaint ain
a supply ofMer cedes-B enzGenuineP arts for nece
ssaryser vice andrepair work.In addition,
st ra tegically locatedpar tsdeliv erycent erspr o‐
vide forqu ick and reliable partsser vice .
Alw aysspecify theve hicle identif ication number
(VIN) (/page322) when order ing Mer cedes-
Benz GenuineP arts. Oper
ator's Manual
This Oper ator's Manual describesallmodels and
all standar dand optio nal equipme ntavailable for
yo ur vehicle atthetime ofthis Opera tor's Man‐
ua lgoing topress. Countr y-specif icdif fere nces
ar epo ssi ble. No tethat your vehicle mayno tbe
eq uipped withall featur esdesc ribed. Thisisalso
th ecase forsy stems andfunc tionsre leva nt to
saf ety. Ther efor e, theeq uipment onyour vehicle
ma ydif ferfr om that inthedescr iption sand illus‐
tra tion s.
The original purchase agreement foryo ur vehicle
cont ains alis tof all ofthesy stems inyour vehi‐
cle.
Should youha ve anyqu estion scon cerning
eq uipment andoper ation, please consult an
aut hor ized Mercedes- BenzCenter. 18
Generalno tes

R
donotdr ive fa ster than 85 mph(1 40 km/h) .
R allo w theengine toreac hamax imum engine
spee dof 4,5 00 rpm (4,500 rpm) onlybr ief ly.
R drive th eve hicle indrive pr ogr am A.
R chang ege ar bef oreth etac home terneedl eis
00C3 ofthewa yto there dar ea oftheta ch ome‐
te r.
R donotshif tdo wn age ar man uallyin order to
br ak e.
R avoidoverstra inin gth eve hicle, e.g.driving at
full thro ttle .
R donotde pres sth eaccelera torpeda lpas t
th epr essur epoint (kickdo wn).
R onlyincr ease theengine speedgradually and
acceler ateth eve hicle tofull spee daf te r
1, 000 miles(1 ,500 km).
This also app lieswhe nth eengine orpar tsof the
dr ivet ra in have been replaced.
Please alsoobser vethefo llo wing breakin g-in
no tes:
R Incer tain drivin gand drivin gsaf etysy stems,
th esensor sadjus taut omaticall ywhile acer‐ tai
ndist anc eis bein gdr iven afte rth eve hicle
has been delivered orafte rre pair s.Fu llsy s‐
te m effectiv enes sis no tre ac hed untilth e
end ofthis teac h-in proce ss.
R Brak epads, brak edisc sand tires that are
eit her newor have been replaced onlyac h‐
ie ve optimum braking effect and grip afte r
se veralhundr edkilom eter sof driving. Com‐
pensat efo rth ere duced braking effect by
appl ying grea terfo rc eto thebr ak epedal. No
teson driving &
WARNIN GRisk ofacci dent dueto
object sin thedr iver's foot we ll
Obj ectsin thedr iver's foot we llma yim pede
pedal travelor bloc kadepr essed pedal.
This jeopardizes theoper ating androad
saf etyof theve hicle. #
Stow allobj ect sin theve hicle secur ely
so that they canno tget intoth edr iver's
fo ot we ll. #
Alw aysins tallth efloor mats securely
and asprescr ibed inorder toensur e
th at ther eis alw ayssuf ficie ntroom for
th epedals. #
Donotuse loose floor mats anddonot
place floor mats ontopof one another. &
WARNIN GRisk ofacci dent dueto inc or‐
re ct foot we ar
In cor rect foot we arinc ludes, forex am ple:
R Shoes withplat form soles
R Shoes withhigh heels
R Slipper s #
Alw ayswe arsuit able foot we arso that
yo ucan operat eth epedals safely. &
WARNIN GRisk ofacci dent ifth eignition
is switc hedoffwhile driving
If yo uswit choffth eignition whiledriving,
saf etyfun ction sar ere strict ed orno long er
av ailable. 96
Drivin gand parking

To
remo vesalt build-up:
R Brak eoccasionally whilepaying attention to
th etra ffic con dition s
R Carefull ydepr essthebr ak epedal attheend
of thejour neyand when star tin gth ene xt
jour ney
No teson hydropl aning
Hyd roplaning cantake place onceacer tain
amount ofwa terhas accumu lated on thero ad
sur face.
Obs erve thefo llo wing notesdur ing heavyprecip‐
it ation orinconditions inwhic hhy droplaning
ma yocc ur:
R Reduce speed
R Avoid tireru ts
R Avoid sudden steer ing movements
R Brak ecar eful ly
% Alsoob ser vetheno teson regular lych ecking
wheels andtires (/ page292). No
teson driving through wateron the road
sur face
Wa terwhi chhas entered intoth eve hicle can
damag eth eengine, electricsand transmission .
Wa tercan alsoent ertheair intakeof theengine
and cause engine damage.
Obser vethefo llo wing ifyo umus tdr ive th ro ugh
wa ter:
R The water,when calm,ma yonl yre ac hth e
lo we redg eof theve hicle body.
R Drive at wa lkin gpace atmos t,other wise
wa tercan entertheve hicle interior orengine
com partment .
R Vehicles trave ling infront ,or onc omin gve hi‐
cles, cancreat ewa veswhic hma yex ceed the
maximu mper missi bledep thofthewa ter.
The braking effect of thebr ak es isreduced afte r
fo rd ing. Brak ecar efull ywhile paying attent ion to
th etraf fic condi tions untilbr aki ng powe rhas
been fullyrestor ed. Fu
nction ofrear axle steer ing The
rear axle steer ing isan electr omechanical
auxiliar yst eer ing onthere ar axle whichadjus ts
th esteer ing ofthere ar wheels accordin gto the
position ofthefront wheels, depending onthe
speed. Thisresults ingreat ermaneuv erabil ity
and improv ed stabilit y.
Re ar axle steer ing has thefo llo wing charact eris‐
tic s:
R Reduced steer ing effort and turnin gra dius
re sulting inreduced parkingef fort
R Improve ddr iving stabilit y,e.g. when corner‐
ing
R Mor edir ect steer ing resulting inim prov ed
handling oftheve hicle
Obser vetheno teson sno wch ains
(/ page29 3)and onactivatin gsn ow chain
mode . Dr
ivin gand parking 99

Ra
ce trac koper ation Inf
orma tion onrace trac koper ation %
Racetrac kope ratio nis und erstood asthe
oper ation oftheve hicle inextreme situa ‐
tio ns when itis us ed on race trac ks or
closed-of ftr ac ks.
Yo ur vehicle maybe used onboth public roads
and race trac ks.The vehicle operating loads dif‐
fe rdepe nding onuse, whichrequ ire dif fering
ma intena nce interva ls.
When theve hicle isoper ated on ara ce trac k, the
com pone ntparts ar esubject tohigher loads
th an on thero ad.
To acc oun tfo rth ese loads, thefo llo wing meas‐
ur es inpar ticular areta ke nas partof themain‐
te nance interva ls:
R Chec kingand replacing individual compo‐
nen ts
R Overhauling completeassem bliesafte rspe‐
cif icper iods ofuse Ad
dition alch ecks mus talw aysbe car ried out on
th eve hicle beforeand afte reac huse onara ce‐
tr ac k.
* NO
TEDama getocom pone ntparts
th ro ugh arise intemp eratur eaf te roper‐
ation onara ce trac k Swi
tching theve hicle offdir ectl yaf te roper a‐
tion onara ce trac kcan lead toacon tinued
te mp eratur eincr ease ofthecom ponen t
par tsas are sult ofheating whiletheve hicle
is statio nary.
The com ponent partsma yth er eb ybe per ma‐
nen tly damag edinexc eption alcases. #
Donotswitc hof fth eve hicle immedi‐
at ely. Car ryout cool down laps atlow
speed withminimal brak eapplication.
Assemblies understra in, suc has the
engine andthebr aking system, cool
do wn faster this wa y. #
Alw aysallo waTr ac k-Chec kto be car‐
ri ed out atan aut hor ized Mercedes-
Benz Centerbef oreand afte ruse onthe
ra ce trac k. Mo
torspor teq uipment ,e.g. six-point seatbelts,
ar eonl yint ended foruse wher ero ad traf fic re g‐
ulations donotappl y.This also applies tomodif i‐
cations toboth thesuspension andaerodynamic
com ponen tpar ts.
Yo ucan obtain further information onser vicin g
yo ur vehicle from anaut hor ized Mercedes-Ben z
Cent er. No
teson thech aract eristics ofindi vidual
ve hicl easse mblie s Due
tospecif icvehicle operating loads inrace‐
tr ac kope ratio n,additio nal requ iremen tsmus t
be obser ved.
The follo wing vehicle assemblies areaf fect ed in
pa rticular :
R Brak esy stem
R Wheels andtires
R Suspension
R Aerodynamic componen ts 10
2
Driving and parking

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

#
Chec kth etir es regular lyforsigns of
dama geand replace anydamag edtires
immediat ely. Chec
kth etir es fordama geand thecor rect tire
tr ea ddep thboth bef oreand afte ruse onara ce‐
tr ac k. Onl yth en isitsaf eto drive on ara ce trac k
and onpublic roads.
As are sult ofthedr iving style and athigh ambi‐
ent temp eratur es,when driving onara ce trac kit
ma ybe neces saryto com pens atefo rth e
inc rease inpressur ein wa rm tires by releasing
air .Ev en forwa rm tires ,th especif iedtirepr es‐
sur ema yonl ybe exceed edbymax. 0.5bar.
Af terth etir es have cool eddown again, youmus t
re adjus tth etir epr essur ein accor dance withth e
specif ications inorder todrive on public roads. Sus
pens ion Sus
pens ionsettings
The fact or yse tting prov ides agood compromise
fo rdr iving onpub licroads and onara ce trac k. Ve
hicl emeasur ements
Ev en smal lch ang estothesuspension settings
alt er thedr iving charact eristic sof theve hicle. To
ensur eop timal driving charact eristic s,thespeci‐
fi ed values andtoler anc esoftheindividual sus‐
pension settings mustbe com plied with.The
dr iving charact eristic sof theve hicle mayot her‐
wise beundesir able.
Ve hicle measur ements arere qu ired inthefo llo w‐
ing situat ions:
R The vehicle height haschang edinrelation to
th eop timiz edsetting.
R The vehicle isfreq uentl ysubject edtovery
high loads, e.g.when driving overcurbs.
Ther efor e, checkth eve hicle height atregular
int erva ls and, ifnec essar y,per form vehicle
measur ements. No
teson suspension components
Despit ere gular checks,and rega rdless of
whe ther there leva nt suspe nsion com ponents
ar ein goo dcond ition, thefo llo wing compone nts
mus tbe replaced afte ra cer tain amount ofuse
on thera ce trac k:
R Whe elbol ts(/ page 104)
R Wheelhub sin clu ding thewheel bearings No
teson engine oil Chec
kth eengine oilleve lbef oreopera tingin
ra ce trac kmod e. DY
NA MIC SELECT switch Fu
nction oftheDY NA MIC SELECT switch Use
theDY NA MIC SELE CTswitc hto chang e
be tween thefo llo wing drive pr ogr ams:
R o (Slipp ery): optim ized pulling away and
dr ivin gch aract eristic sin wint ryand slippe ry
ro ad con dition s
R = (Individual):ind ividual setting s Dr
ivin gand parking10
5

%
Incar washes withacon veyo rsy stem: ifyo u
wo uld liketo lea vetheve hicle while itis
being washed, makesur eth eSmar tKey is
locat edintheve hicle. Theparkposition 005D
is other wise automaticall yeng aged.
% If,afte rth ecar wash, youre mo vethewa x
fr om thewindshield andwiper rubber s,this
will preve ntsme aring and reduce wiper
noise. No
teson using apo we rwa sher &
WARNIN GRisk ofan acci dent when
us ing powe rwa sher swit hro und -spr ay
nozzl es
The waterje tcan caus eex tern all yin visi ble
damag e.
Com ponentsdamag edinthis wa yma yune x‐
pec tedly fail. #
Donotuse apo we rwa sher withro und-
spra yno zzles. #
Have damag edtires orchassis parts
re placed immediat ely. To
avo iddamag eto your vehicle, observethefo l‐
lo wing when usingapo we rwa sher :
R Keep theSmar tKey atleas t10 ft(3 m) away
fr om theve hicle. Other wise theta ilg ate
could openunintentio nally.
R Maint ainadis tance ofat leas t11 .8 in
(30 cm) totheve hicle.
R Vehicl eswith decorativ efo il: par tsof your
ve hicle areco veredwit hadecora tivefo il.
Maint ainadis tance ofat leas t27 .6 in
(70 cm) between thefo il-c ove redpar tsof the
ve hicle andthenoz zleofthepo we rwa sher .
Mo vethepo we rwa sher nozzlearound whilst
cleaning. Thewaterte mp eratur eof the
po we rwa sher mustno texc eed 140°F
(60 °C).
R Obse rveth einf ormation onthecor rect dis‐
tan ceintheeq uipment manufacturer'soper‐
ating instruction s.
R Donotpoint thenoz zleofthepo we rwa sher
dir ectl yat sensitiv epar tssuc has tires, gaps,
elect rical com pone nts,batter ies, light sour‐
ces and ventil ation slot s. Wa
shing theve hicl eby hand Obser
vetheleg alrequ iremen ts,e.g. inanumb er
of coun tries, washing byhand isonl yper mitt ed
in specially designatedwash bays. #
Use amild cleaning agent, e.g.carsham poo. #
Washtheve hicle withluk ewa rmwaterusi ng
a sof tcar spong e.When doingso,donot
ex pose theve hicle todirect sunlight . #
Carefully hosetheve hicle offwit hwa terand
dr yusi ng ach amois .Ta ke car eno tto point
th ewa terje tdir ectl yto wa rdsth eair inle t
gr ille belo wthehood. No
teson paint work/ma tte finish paint work
car e Obse
rveth eno teson cleaning andcareto avo id
damagin gth epaintw ork.
Pa int
R Insect remains: soakwithinsect remo verand
ri nse offth etreat edareas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse off
af te rw ards. Main
tenance andcare26
9