2021 MERCEDES-BENZ GT 4-DOOR COUPE air condition

and
your dat apr otect ion rights caneither be
fo und onthemanuf acturer'swebsit eor youwill
re cei vethis inf ormatio nas par tof theva rious
ser vices andservice offers .The reyouwill also
fi nd thecon tact informati onforth emanuf ac‐
tur erand itsdat apr otect ion officer s.
At awo rkshop, forex am ple, withth esuppor tof
a specialis tand possibly fora fe e, youcan have
dat are ad out whic his stor ed onlylocally inthe
ve hicle. MBUX
multim ediasystem/M ercedes me
connect If
th eve hicle iseq uipped withth eMBUX multi‐
media system orMer cedes meconnect ,addi‐
tion aldat aabout theve hicle's operation, theuse
of theve hicle incer tain situat ions,and theloca‐
tion oftheve hicle maybe com piled bythe
MBUX multimedia system orMer cedes mecon‐
nect .
Fo radd itional information, pleasereferto the
"MB UXmult imed iasystem" sectionand/or the
Mer cedes meconn ectTerm sand Conditions. Ev
ent data recor der s US
Aonl y:
This vehicle iseq uipped withan event data
re cor der (EDR ).The mainpu rpose ofan EDRis
to recor d,incer tain crash ornear crash-lik esit‐
uation s,suc has an airbag deployment orhitt ing
a ro ad obs tacle ,da ta that will assis tin unde r‐
st andi nghowave hicle's systems perform ed.
The EDRis designed torecor dda ta relat ed to
ve hicle dynamics andsafetysy stems fora shor t
per iod oftime, typica lly30 seconds orless.
The EDR inthis vehicle isdesigned torecor d
su ch dat aas:
R Howvarious systems inyour vehicle were
oper ating
R Whe ther or notth edr iver and front
passeng erseat belts werebuc kled/f astened
R Howfar(if at all)th edr iver wa sdepr essing
th eaccelera torand/or brak epeda land
R Howfast theve hicle wastrave ling
This datacan help prov ide abe tter under stand‐
ing ofthecir cums tances inwh ich acci dents and
inju ries occur .NO TE: EDRdat ais recor ded by yo
ur vehicle onlyif anon- trivial crash situation
occur s;no dat ais recor ded bytheED Runder
nor mal driving conditions andnoper sonal data
(e.g. name, gende r,ag eand acciden tloc atio n)is
re cor ded .Ho wever,ot her parties, suchas law
enf orcement ,could combine EDRdatawit hth e
typ eof personally identifying dataro utin ely
acq uired dur ing acr ash inve stigation .
To read dat are cor ded byan EDR,spec ialequip‐
men tis requ ired, and access totheve hicle or
th eED Ris needed. Inaddition totheve hicle
manuf acturer,ot her parties that have thespecial
eq uipment, suchas law enf orcemen t,can read
th einf ormation byacc essi ngtheve hicle orthe
EDR.
EDR data ma ybe used incivil andcrimina lmat‐
te rs as ato ol inaccident recons tructi on,acci ‐
dent claims and vehicle safety. Since theCr ash
Dat aRe trie va l(CDR) tool that isused toextract
da ta from theED Ris comm erciall yav ailable,
Mer cedes-Ben zUS A,LLC("MBUS A")expressl y
disclaims anyand allliability arising from the
ex tracti onofthis inf ormatio nby unaut horized
Mer cedes-Ben zper son nel. Gen
eral no tes 35

indic
ator lam pis off.Ifth efront passeng erseat
is occupied, makesur e,bo th bef oreand during
th ejour ney,that thest atus ofthefront
passeng erairbag iscor rect (/ page 49). &
WARNIN GRisk ofburnsfrom hotair bag
com ponents
The airbag partsareho taf te ran air bag has
been deployed. #
Donotto uc hth eair bag parts. #
Have adeplo yedair bag replaced ata
qu alif ied spec ialistwo rkshop assoon
as possible . Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt.Take this int oacc ount ,par tic‐
ular lyifan Em erge ncy Tensi oni ng Device istrig ‐
ge redor an airbag deployed. If
th eEmer gency Tensi oni ng Device sar etrig ‐
ge redor an airbag isdeplo yed, youwill hear a
ban g,and asmal lamoun tof powder mayalso be
re leased:
R The bang willnotge ner ally affect your hear ‐
ing .
R Ingener al,th epo wder released isno thaz‐
ar dous tohealt hbut maycause short-term
br eat hing difficul ties toper sons suffering
fr om asthma orother pulmonar yconditions .
Pr ov ided itis saf eto do so, leavetheve hicle
immediat elyoropen thewindo win order to
pr eve ntbrea thing difficul ties .
Airb agsand pyrotech nic Emerg encyTensi oni ng
De vice scont ain pe rchlor atemat erial, whic hma y
re qu ire spec ialhandlin gor environm entalpro‐
te ction measures. Na tional guideline sre ga rding
wa ste disposal mustbe obser ved. InCalif ornia,
see https:/ /dtsc.ca.go v/.Using thesear ch
function, youwill find informa tionon perchlo‐
ra te,fo rex am ple. Seat
belts Pr
otection prov ided bytheseat belt Alw
aysfa sten your seat beltcorrect lybef ore
st ar tin gajo ur ne y.Asea tbe ltcan only prov ide
th ebes tle ve lof protect ion ifit is wo rncor rectl y. &
WARNIN GRisk ofinju ryor deat hdue to
inc orrectl yfa stened seatbelt
If th eseat beltisno two rncor rectly ,it can‐
no tper form itsintended protect ive func tion.
In addition, anincor rectly fastened seatbelt
can also cause injuries,forex am ple, inthe
ev ent ofan acciden tor when braking or
ch ang ingdirect ion sudden ly. #
Alw aysensur eth at all vehicle occu‐
pants have their seat belts fastened
cor rectl yand aresitti ngprope rly. Alw
aysobser vetheins truction sabout thecor‐
re ct driver's seatpos ition and adjus ting theseat
(/ page90). Occ
upant safety 39

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
% Also obser vetheno teson regular lych ecking
wheels andtires (/ page306).
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 improve dstabilit 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
(/ page30 7) and onactivatin gsn ow chain
mode . Inf
orma tion ontheAMG ceramichigh -per‐
fo rm ance comp osit ebr ak esy stem The
brak esy stem isdesigned forhea vyloa ds.
This maylea dto noi sewhen braki ng. Thisef fect
can also occu raf te rwa shing theve hicle.
The noise depends onthefo llo wing fact or s:
R Spee d
R Brak efo rc e
R Environme ntal cond itions, e.g.te mp eratur e
and airhumidity Dr
iving andparking 14
5

Disp
layin theIns trum ent Displa y In
stru ment Displa yin theWi descr eenCockpit
1 Maximum permissible speed
2 Maximum permissible speedwhenther eis a
re striction
3 Addition alsign withre striction
% Ve
hicl eswith ast andar dIns trument Dis‐
pla y:a+ symbo lne xt to atraf fic sig nin the
Ins trument Displayindicat esthat addit ional
traf fic sig ns have been detected. Thesecan
al so be displ ayed inthemedia displayand
op tion ally intheHead-up Display. If
Traf fic Sign Assistcanno tde term ine themaxi‐
mum permissible speed(e.g.duetomissi ng
signs), thefo llo wing displa yappear sin the
Ins trument Display: This
isdispl ayed con tinuousl yif th eve hicle isin
a countr ywher eTr af fic Sign Assistisno tsup‐
por ted. Traf fic Sign Assistisno tav ailable inall
coun tries.
% Alsoobse rveth einf ormation ondispla ymes‐
sag esinTraf fic Sign Assist(/ pag e349 ).
Sy stem limit s
The system maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions. R
Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth etra ffic sign sar ehar dto detect, e.g. due
to dir tor sno w,because they areco vered, or
due toinsuf ficie ntlighti ng.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out-of-da te.
R Ifth esigns areambiguous, e.g.traffic sign s
on con stru ction sites orinad jacent lanes.
R Ifyo utur nshar plywhen passingtraf fic sig ns
ou tsid eth ecamer a'sfield ofvision.
Se tting Traf fic Sign Assis t
Re quirement s:
R Onl yve hicl eswith Drivin gAss istanc e
Pa ckag e:
Ac tiveDis tance AssistDIS TRONI Cand ECO
Assi stmus tbe activ ated forth eaut omatic
adop tionofspeed limits. 19
4
Driving and parking

Condi
tionsfo ra co urse -cor rectin gbr ak e
ap plica tion(vehicles withou tDr iving Assis‐
tance Packag e)
Lane markings weredetected on both sides of
th elane. Thefront wheel drives ove ra continu‐
ous lane marking.
% Abr ak eapp lication maybe interru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir ect ion.
Conditions fora co urse -cor rectin gbr ak e
ap plica tion(vehicles withDr iving Assistance
Pa ckag e)
R Acontinuou sla ne mar king wasde tected and
dr iven ove rwit hth efront wheel.
R Alane marking andanappr oaching vehicle,
an overtaking vehicle orvehicles driving par‐
allel toyour vehicle weredetected inthe
adjac entlane .The fron twheel drives ove r
th elane marking .
% Abr ak eapplication maybe interru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir ect ion. Sy
stem limit s
No lane- correcting brak eap plica tion occu rsin
th efo llo wing situat ions:
R Youcle arly and activel yst eer ,br ak eor accel‐
er ate.
R Ifadr iving safetysy stem interve nes, such as
ES P®
,Ac tiveBr ak eAssi stor ActiveBli nd
Spo tAssi st.
R Youha ve adop tedaspor tydriving style wit h
high corner ing speeds orhigh ratesof accel‐
er ation.
R When ESP®
is deactiv ated.
R Ifaloss oftirepr essur eor afa ulty tirehas
been detected and displ ayed.
If yo udeac tivateth eAc tiveLa ne Keeping Assist
wa rning and thelane marking scann otbe clear ly
de tected, itis pos siblethat no lane correcting
br ak eap plica tion take splace (/page202).
The system maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e highl
yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
th esun orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth er ear eno lane marking s,or several
unc lear lane markingsarepr esen tfo rone
lane, e.g.around roadw orks .
R Ifth elane marking sar ewo rn,dar kor cov‐
er ed.
R Ifth edis tance from theve hicle infront istoo
shor tand thus thelane marking scann otbe
de tected.
R Ifth elane marking sch ang equ ickl y, e.g.
lanes branc hof f,cr oss one another or
mer ge.
R Ifth ero ad isvery nar row and wind ing.
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:ifth era dar sensor sin there ar bum per
ar edir tyor coveredin sno wand anobs tacle Dr
iving and parking 20
1

R
freq uent operation inmount ainouste rrain or
on poor road sur faces
R whe nth eengine isoftenleft idling forlong
per iods
R oper ation inpar ticula rly dus tycond ition s
and /orif air -rec ircula tion mod eis freq uen tly
used
In these orsimilar operating conditions ,ha ve the
int erior airfilt er ,engin eair clean er,engin eoil
and oilfilt er etc. chang edmor efreq uent ly.The
tir es mus tbe checkedmor efreq uentl yif th e
ve hicle isoper ated under increased loads. Fur‐
th er information canbeobt ained ataqu alif ied
spec ialistwo rkshop. Batt
erydisconne ctionperiods The
ASSYSTPL US service interva ldisp lay
can onlycalculat eth eser vice dueda te when
th ebat tery isconnect ed. #
Notedown theser vice duedatedispla yedon
th eins trument displaybef orediscon necting
th ebatt ery(/ page27 1). Eng
inecom partment Ope
ningand clos ing the hood &
WARNIN GRisk ofacci dent dueto driv‐
ing withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood
is loc ked. &
WARNIN GRisk ofacci dent andinjury
when openingand closingthehood
The hood maysuddenl ydr op intoth eend
position .
Ther eis arisk ofinjur yfo ran yone inthe
hood's rang eof mo vement. #
Open orclose thehood onlywhen ther e
is nobody inthehood's rang eof mo ve‐
ment. &
WARNIN GDang erofburnswhen open‐
ing thehood
If yo uopen thehood when theengine has
ove rheat edordur ing afire intheengine
com partmen t,yo uco uld come intoco ntact
wit hho tga ses orother escaping operating
fl uids. #
Beforeopen ingthehood, allowthe
engine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofinju rydue tomo ving
par ts
Com ponents intheengine compartmen tma y
con tinue running orstar tup sudden ly,ev en if
th eignition isswitc hedoff.
Mak esur eof thefo llo wing beforeper form ing
ta sk sin theengine compartmen t: #
Swi tchth eignition off. 27
2
Maint enance andcare

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.
R Tree resin, oils, fuels andgreases: remo veby
ru bbing gentl ywi th aclo thsoak edinpe tro‐
leum ether orlight erfluid.
R Coolan tand brak efluid: remo vewit hadam p
clo thand clean water.
R Tarst ains :use tarremo ver.
R Wax:usesilicone remo ver.
R Donotatt achsticke rs,fi lms orsimilar mate‐
ri als.
R Remo vedirtimmediat ely,wher epossible.
Mat tefinish
R Onlyuse carepr oducts approvedfo r
Mer cedes-Ben z. R
Donotpolish theve hicle andalloywheels.
R Onlyuse carwashes that cor respond tothe
lat estengin eering standar ds.
R Donotuse carwash progr ams withafinal
ho twa xtrea tment.
R Donotus epa int cleane rs,buf fing orpolish‐
ing prod ucts ,gl oss preser vers,e.g. wax.
R Alw aysha ve paintw orkre pair scar ried out at
a qu alif ied spec ialistwo rkshop. No
teson cleaning decorativefo ils Obser
vetheno teson matt efinis hcar ein the
ch ap ter"No teson paintw ork/matt efinis hpa int‐
wo rkcar e"(/ page 280). Theyal so app lyto
matt edecor ativefo ils.
Obser vetheno teson cleaning decorativefo ils to
avo idvehicle damag e.
Cleaning
R Forclea ning, useplenty ofwa terand amild
clea ning agent without additivesorabr asive
subs tances, e.g.a car shampooappr ovedfo r
Mer cedes-Ben z. R
Remo vedirtimmediat ely,wher epossible,
whils tavo iding rubbing toohar d.Ther eis
ot her wise arisk ofdamagi ngthedecor ative
fo ilirre par ably.
R Ifth er eis dir ton thefinis hor ifth edecor a‐
tiv efo ilis dull: usethePa int Cleaner recom‐
mend edand approve dfo rMer cedes-Benz.
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.
R Toprev ent waterst ains ,dr ya fo il-wr apped
ve hicle withasof t,absorbent clothafte r
ev erycar wash.
Av oiding dama getothedecor ative fo il
R The service life and color ofdecor ativefo ils
ar eim pair edby:
- Sunl ight
- Temp eratur e,e.g. hotair blower
- Weather condition s
- Stone chipping sand dirt
- Chemic alclean ingagent s 280
Maintenanceand care

In
addi tion, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elylow tirepr essur e. Ti
re pressur ewhic his toolow can cause:
R Tire faults asare sult ofoverheating
R Impair edhandling charact eristic s
R Irre gular wear
R Incr eased fuelconsum ption &
WARNIN GRisk ofacci dent dueto too
high atir epr essur e
Ti re swit hexc essiv elyhigh pressur ecan
bur st.
In addi tion, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. #
Avoid excessiv elyhigh tirepr essur es. Ti
re pressur ewhic his toohigh cancause:
R Increased brakin gdis tance
R Impaired handl ing charact eristic s
R Irre gular wear
R Impair eddrivin gcom fort
R Sus ceptibility to damag e &
WARNIN GRisk ofacci dent dueto repea‐
te dpr essur edr op inthetir es
The wheels, valves ortires could bedam‐
ag ed.
To olow atir epr essur ecan lead tothetir es
bur sting. #
Examine thetir es forfo re ign obje cts. #
Chec kwhe ther thetir ehas apunct ure
or theva lve has aleak . #
Ifyo uar eunab leto rectify thedamag e,
con tact aqu alif ied spec ialistwo rkshop. Yo
ucan find spe cifica tions forth etir epr essur e
fo rth eve hicle's fact or y-ins talled tires on thefo l‐
lo wing labels:
R Tire and Loadi ngInfo rm atio nplacar don the
B‑pil larof your vehicle (/page31 2).
R Tire pressur eta ble ontheinside ofthefuel
fi ller flap (/ page30 9).
Obse rveth emaximum tirepr essur e
(/ page31 9).
Us easu itabl epr es su re gaug eto checkth etir e
pr essur e.The outerappear anceofatir edoes
no tper mit anyre liable conclusion aboutthetir e
pr essur e.
Onl ycor rect tirepr ess urewhe nth etir es are
cold. Condition sfo rcold tires:
R The vehicle hasbeen parkedwit hth etir es
out ofdir ect sunlight forat lea stthre ehour s.
R The vehicle hastrave led less than 1mile
(1 .6 km ).
The vehicle's tires heat upwhen driving. Asthe
te mp eratur eof thetir es incr eases, sotoodoes
th etir epr essur e. 308
Wheels andtires