2021 MERCEDES-BENZ GT 4-DOOR COUPE service

er
ant com pressor oil(PAG oil) islocat edon the
inside ofthehood. Inf
ormation label(exa mp le–US A/China)
1 Hazardand service warning symbols
2 Refrig er ant filling capac ity
3 Applic ablestandar ds
4 PAGoil par tnum ber
5 GWP(global warming potentia l)of there frig‐
er ant used
6 Refrig er ant type Inf
ormation label(exa mp le–Canada)
1 Hazardand service warning symbols
2 Refrig er ant filling capac ity
3 Applic ablestandar ds
4 PAGoil par tnum ber
5 GWP(global warming potentia l)of there frig‐
er ant used
6 Refrig er ant type
Symbo ls1 indica tethefo llo wing:
R Possible dangers
R The need tohave ser vice workcar ried out at
a qu alif ied spec ialistwo rkshop only Fi
lling capacityforre frig er ant and PAGoil
Missi ngvalues werenotye tav ailable atthetime
of going topress. Model
Refrig er ant
Mer cedes- AMGGT43
4MA TIC+
All other models 22.2±0.4 oz
(630 ±10 g) Model
PAGoil
Mer cedes- AMGGT43
4MA TIC+
Mer cedes -AMG GT53
4MA TIC+ 4.2
±0.4 oz
(1 20 ±10 g)
All other models 2.8±0.4 oz
(80 ±10 g) Te
ch nica lda ta 34
5

Disp
laymes sages Int
roducti on In
fo rm ation about displaymessag es
Displ aymessa gesappea ron themultifunc tion
displa y.
Dis play messa geswit hgr aphical symbols are
sim plified intheOper ator's Manual andmaydif‐
fe rfr om thesymbols onthemultifunc tiondis‐
pla y.The multifunct iondispla ysho wshigh-pr ior‐
ity displa ymessag esinred. Cer tain displa ymes‐
sag esareacc ompanied byawa rning tone.
Pl ea se act inacco rdanc ewit hth edispla ymes‐
sag esand follo wtheadditional notesin the
Oper ator's Manual .
Fo rsome display messa ges,asymbol willalso
be sho wn:
R Õ Further information
R 00A4 Hidedispla ymessag e
Wi th thelef t-hand Touc hCon trol, youcan select
th ere spectiv esymbol byswiping tothelef tor
ri ght. Press theÕ symbol tosho wfur ther infor‐ mation
onthemedia display.Press the00A4
symbol tohide thedispla ymessag e.
Yo ucan hide low- prior ity displa ymessag esby
pr essing theP backbutt onorthelef t-hand
To uc hCon trol. The displ aymessa geswill then
be stor ed inthemessag ememor y.
Re ctify thecause ofadispla ymessag eas
qu ickl yas possible .
High- prior ity displa ymess ages can notbe hid‐
den. Themultif unction displa ysho wsthese dis‐
pla ymessag escon tinuousl yuntil thecause of
th edispla ymessag ehas been rectif ied.
Cal ling up save ddispl aymes sages
On-b oard com puter:
4 Service5
1Mes sage
If th er ear eno displa ymessag es,NoMessages
will appear onthemultifunc tiondispla y. #
Scrollth ro ugh thedispla ymessag esby swip‐
ing upw ards ordown wardson thelef t-hand
To uc hCon trol. #
Toexitth emess agemem ory: press the
bac kbutt onP. Displa
ymessag esand warning/ indic ator lam ps 34
9

Occupant
safety Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0075 SRS Malfunct ionServic e
Required *T
herestra int system ismalfunct ioning(/page38). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Front LeftMalfunction
Service Required(exa mp le) *T
hecor responding restra int system ismalfunct ioning(/page38). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0075
Left Side Curtain Airbag
Malfunction Service
Requ ired(exa mp le) *T
hecor responding windowcur tain airbag ismalfun ctionin g(/ page38). &
WARNIN GRisk ofinju ryor fata linj urydue toamalf unctionin thewindo wcur tain airbag
The windo wcur tain airbag mightbetrigg ered unin tentio nallyor might notbe trigg ered atall intheev ent ofan
acciden t. #
Have thewindo wcur tain airbag checkedand repair edimmediat elyat aqu alif ied spec ialistwo rkshop. 350
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Driver 'sDoor Open &
Transmission NotinPRisk
of Vehicle RollingAway *
The driver's door isno tfully closed andtransmission position005B,005Eorneutr al005C isselect ed. #
Select parkposition 005Dwhen switchingoffth eve hicle.
N Permanent lyAct ive Risk
of Rolli ngAway *
While theve hicle isrolling orwhile youar edr ivin g,ne utral 005Chas been engage d. #
Tostop, depr essthebr ak epedal. #
Shif tth etra nsmiss iontopar kposition 005Dwhile theve hicle isstatio nary. #
Tocontinu edr ivi ng, select transm ission position 005B or005E.
Servi ceRequire dDo Not
Shif tGe ars VisitDeal er *T
hetransmission ismalfunctionin g.The transmission positioncannolong erbe chang ed. #
When transm issionposit ion005Bisselec ted, con sult aqu alif ied spec ialistwo rkshop anddonotch ang eth etra ns‐
mission position. #
Forall other transmission positions,parkth eve hicle safely. #
Consult aqu alif ied spec ialistwo rkshop orbreakdo wnservice.
Reversing NotPossible
Service Required *
The transmission ismalfunctioning. Thetransmission position005Ecanno tbe select ed. #
Consult aqu alif ied spec ialistwo rkshop.
Transmission Malfunction
Stop *
The transmission ismalfunctioning. Thetransmission shiftsto neu tral 005C automatical ly. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions. #
Depr essthebr ak epedal. #
Engage par kposition 005D. 366
Displa ymessag esand warning/ indic ator lam ps

Ac
tiv eSte ering Assis t.............................1 84
Ac tivati ng/d eactiv ating ........... ............186
Ac tiveEmerg encyStop Assis t.............1 86
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 187
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>184
Sy stem limits ....................................... 184
Ac tiv eTr af fic Jam Assis t
Ac tivati ng/d eactiv ating ........... ............184
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>184
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>121
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 122
Ad diti ves.................................................. 341
En gine oil............................................. 341
Fu el ...................................................... 341
Ad diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
Af ter-sales service center
see ASSYSTPL US Air
bag
Re duced protect ion ...............................4 6
Air cond itioning menu
Callin gup ........................................ .... 132
Air distribut ion
Se tting ............................................ .....1 31
Se tting (MBU Xmul time diasy stem) ..... 133
Air freshen ersystem
see Perfume atomiz er
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air vents ................................................... 136
Ad jus ting (front) ............. .....................136
Ad jus ting (rea r) ............. .......................136
Glo vebox.............................................1 37
Air vents
see Airvents
Ai r-condi tioningsystem
see Climat econ trol
Air -recir cula tion mode............................ 134 Air
-water duct .......................................... 277
Ke eping free ........................................2 77
Airb ag.........................................................4 4
Ac tivati on ........... ...................................38
Fr ont airbag (driver ,fr ont passeng er)....4 4
Ins tallation locations .............................4 4
Knee airbag........................................... 44
Ov ervie w ............................................... 44
PA SSENGER AIRBAGind icat orlam p.....4 9
Pr otect ion ..............................................4 5
Sid eairba g<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 44
Wi ndo wcur tain airbag ...........................4 4
Air flow
Se tting .................................................1 31
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Ambient lighting
Se tting (multimedia system) ................1 23 Inde
x41
5

Collision
detection (parked vehicl e)...... 165
Comb inationswitc h.................................1 19
Com puter
see On-boar dcom puter
Consum ption indicat or
Calling up........................................ .... 152
Con venience closing featur e....... ............. 81
Con venience opening ................................ 81
Coolant (engine)
Chec kleve l.......................................... 276
Fil ling cap acity <0011001100110011001100110011001100110011001100110011001100110011
0011> <0011001100110011001100110011001100110011001100110011001100110011
0011> ..343
No tes ..................... ............................. 343
Cool ing
see Clima tecontr ol
Co pyrights
Licen se.................................................. 36
Tr ademar ks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 36
Co rnering light .........................................1 21
Cr oss Traf fic Aler t...................................2 24
Cr osswind Assist
Fu nctio n/no tes .................................... 171 Cr
uise contr ol.......................................... 175
Ac tivati ng ........... ................................. .176
Butt ons <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>........176
Callin gup aspee d...............................1 76
Dea ctivating ............. ............................176
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>175
Maximum designspeed .................. ..... 150
Re quiremen ts:.....................................1 76
Sel ecting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 176
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 176
St or ing aspeed .............................. ...... 176
Sy stem limit ations ........................... ....1 75
Cup holder
Swit ching thecooling/ heatingfunc‐
tion on/off...........................................1 11
Cus tomer Assist ance Center (CAC ).........3 0
Cus tomer Relat ions Depar tment .............3 0 D
Dash board
see Cockpit
Data acquisition
Ve hicle ............................................. ...... 31 Data
protection rights
Dat ast or ag e .......................................... 34
Data storage
Dat apr otect ion rights ........................... 34
Elect ronic contr oluni ts <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ..31
Online services ...................................... 34
Ve hicle ................................................... 31
Da ytim eru nning lampmode
see Daytime running lights
Da ytime running lights ........................... 122
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 122
Deact ivat ing theala rm (ATA ).................... 87
Deale rship
see Qualified speci alist wo rkshop
Dec laration ofconf ormity
Wi reless vehicle component s................2 7
Decor ative fo il(cleaning instructions)
.. .................................................................2 80
De finitions (tiresand loading) ............... 322
Des tinat ionentr y.................................... 244
Ent ering aPOI oraddress ............ ........244 420
Index

0075
Front LeftMalfunction Service
Re quired (exa mp le) .............................3 50
00B6 FuelLevelLo w ............................ 364
00B6 GasCap Loose ...........................3 64
Ù Hinterac hsl enk ung Stör ung
We rkstatt aufsuc hen ...........................3 59
Ù Hinterac hsle nkung z.Zt. nicht
ve rfügbar .............................................3 59
0025 Inoper ativeSee Oper ator's
Manu al....... ......................................... 385
00E5 Inoper ativeSee Oper ator's
Manu al....... ......................................... 386
007A Inoper ativeSee Oper ator's
Manu al....... ......................................... 387
0053 Inoper ative....... .......................... 388
: Intell.Ligh tSy stem Inoperativ e.. 357
Á KeyNo tDe tected (red displ ay
messa ge).............................................3 54
Á KeyNo tDe tected (whit edis‐
pl ay messa ge).....................................3 54 0075
LeftSide Curtain Air bag Mal‐
func tion Service Required (exa mp le) ...3 50
¢ Lowe ring <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> ...........382
ä Malfunctio nDr ive at Ma x.50
mp h..................................................... 381
: Malfunction SeeOper ator ’s
Manual ................................................ 355
Á ObtainaNe wKe y.......................3 53
ç Off....... ....................................... 375
00D9 Off..............................................3 73
0049 Parking Brak eSee Opera tor's
Manua l...... .......................................... 368
0077 PleaseCor rect Tire Pressur e...... 393
0049 Please Release Parking Brak e.....3 71
00D9 Please WaitChar ging 48VBat ‐
te ry … <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 391
006F Rear Lef tBac kres tNo t
La tched (exa mp le) ...............................3 62
Á Replace KeyBat tery <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 353
003D SeeOperator's Manua l...... ........389 0075
SRSMalfunction Service
Re quired .............................................. 350
Ù Steer ing Malfunct ionIncreased
Ph ysical Effort See Operator's Man‐
ua l...... ................................................. 358
Ù Steer ing Malfunct ionStop
Immediat elySee Oper ator's Manual ...358
003D Stop Vehicle LeaveEngi neRun‐
ning <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>.....390
003D Stop Vehicle SeeOper ator's
Manual ................................................ 390
00CC Stop Vehicle Vehicle TooLo w ..... 382
ç Suspended ................................. 375
: SwitchOf fLig hts <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 356
: SwitchOn Hea dlamps ................ 356
0080 Trans .Oil Overheat edDrive on
wit hCar e.............................................3 67
0049 Turn On theIgnit iontoRelease
th ePa rking Brak e................................ 372 422
Index

Ele
ctroni cRe ar AxleDif fere ntia lLoc k
Cu rrent lyUn available .......................... 360
Ele ctro nic Rear AxleDif fere ntia lLoc k
Inop erati ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 359
Engine CanNo wBe Started .................3 91
Fr ont Passeng erAirbag Disabled See
Oper ator's Manual ...............................3 51
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual ...............................3 51
Haza rdWa rning Flashe rsMalfunc‐
tioning ............... ..................................3 57
Mer cedes meconn ectServices Limi‐
te dSee Oper ator's Manual .................. 388
N Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 366
Only Shiftto 'P' when Vehicle isSta‐
tio nar y................ .................................3 65
Pla cetheKe yin theMar kedSpace
See Oper ator's Manual ........................ 355 PRE-S
AFEImpulse SideInoperativ e
See Oper ator's Manual ........................ 353
PRE-S AFEInoper ativeSee Oper a‐
to r's Manua l...... .................................. 352
RA CE STAR TCa ncel ed<0011001100110011001100110011001100110011001100110011001100110011
001100110011> ......383
RA CE STAR TNo tPo ssible SeeOper‐
at or's Manual ...................................... 383
Re ar Spo ilerCon trol Sy stem Inoper a‐
tiv e ...................................................... 360
Re ar Spo ilerInoper ativeLim itXXX
mp h..................................................... 360
Re versing NotPo ssible Service
Re quired .............................................. 366
Ser vice Required Do NotShif tGear s
Vi sit Dealer .......................................... 366
St op Vehicle LeaveEngi neRunning
Wa itTrans miss ionCoolin g...................3 67
Ti re Press. Monit orCur rently
Un available .......................................... 392
Ti re Press. Monit orInopera tive ........... 392 Ti
re Pressur eMonit orInopera tiveNo
Wheel Sensors .................................... 392
Ti re sOv erheat ed................................. 394
To Dese lect Por N, Dep ress Brak e
and StartEn gin e.................................. 365
To switc hengine off,pr ess and hold
St art/ Stop butt onforat lea st3sec‐
onds orpress 3times. .........................363
Tr af fic Sign AssistCur rently Unavail‐
able SeeOperat or'sMan ual................ 377
Tr af fic Sign AssistInoper ative.... .........3 77
Tr ans miss ionMalfun ction Stop ........... 366
Displa yon thewindsh ield
see Head- upDis play
Dis tance control
see ActiveDis tance AssistDIS TRONI C
DI ST RO NIC
see ActiveDis tance AssistDIS TRONI C
Do or
Ch ild sa fety lock (rear door s)................ 64
Loc king (emerg encykey) .......................7 3 42
4
Inde x