2019 MERCEDES-BENZ AMG GT 4-DOOR COUPE Owner's Manual

Fu
rther relat ed subje cts:
R Noteson tirepr essur e(→ pag e388)
R Tire pressur eta ble (→pag e389)
R Tire and Loadi ngInfo rm atio nplacar d
(→ pag e39 3) Ti
re pres sur emoni toring system Fu
nction ofthetir epr essur emoni toring sys‐
te m &
DANG ER Risk ofacc iden tdue toinc or‐
re ct tirepr ess ure
Ev erytir e, incl uding thespar e(if prov ided),
should becheckedwhen coldatleas tonc ea
mont hand inflated tothepr essur ere com‐
mend edbytheve hicle manuf acturer(see
Ti re and Loadi ngInfo rm atio nplacar don the
B-pil laron thedr iver ’s side orthetir epr es‐
sur elabel ontheinside ofthefuel filler flap
of your vehicle). Ifyo ur vehicle hastires ofa
dif fere nt size than thesize indicat edon the
Ti re and Loadi ngInfo rm atio nplacar dor the tir
epr es su re table, youne ed todeterm ine
th epr oper tirepr essur efo rth ose tires.
As anadded safetyfe atur e,your vehicle has
been equipped withatir epr essur emonit or‐
ing system (TPMS) that illumin ates alow tire
pr essur eind icat orlam pwhen oneor mor eof
yo ur tires aresign ifican tly und erinf lated.
Ac cor ding ly,if th elow tirepr essur eindicat or
lam plights up,yousho uld stop and check
yo ur tires assoo nas poss ible, andinflate
th em tothepr oper pressur e.Driving ona
signif icantlyunder inflated tirecauses thetir e
to ove rheat and canlead totirefa ilur e.
Un der inflation alsoincreases fuelconsum p‐
tion andreduces tiretread life, and may
af fect theve hicle's handling andbraking abil‐
ity .Please note that theTPMS isno ta subs ti‐
tut efo rpr oper tiremaint enance, anditis the
dr iver's responsibili tyto maint aincorrect tire
pr ess ure, eve nif und erinf latio nha sno t
re ac hed theleve lto trig ge rill umina tionof
th eTPMS low tirepr essur eindicat orlam p.
Yo ur vehicle hasalso been equipped witha
TPMS malfunction indicatortoindic atewhen th
esy stem isno toper ating proper ly.The
TPM Smal functi onindicatoris combined with
th elow tirepr essur eindicat orlam p.When
th esy stem detects amal functi on,theindica‐
to rlamp willfl ash forapp roxima tely amin ute
and then remain continuously illumina ted.
This sequence willcontinue upon subseq uent
ve hicle star t-ups aslon gas themalfunct ion
ex ists.
When themalfunct ionindicat orisillumina‐
te d, thesy stem mayno tbe able todetect or
sig nal low tirepr ess ure asintende d.TPM S
mal functi onsmayoccu rfo ra va riet yof rea‐
son s,inc ludin gth eins tallation ofinc om pati‐
ble replacemen tor alternat etir es orwheels
on theve hicle that preve nttheTPMS from
func tioningproper ly.
Alw aysch eckth eTPMS malfunct ionwarning
lam paf te rre placing oneormor etir es or
wheels onyour vehicle toensur eth at the
re placemen tor alternat etir es and wheels
allo wtheTPMS tocontinu eto function prop‐
er ly. Whee
lsand tires 39
1

The
system checks thetir epr essur eand thetir e
te mp eratur eof thetir es installed ontheve hicle
by means ofatir epr essu resensor .
Ne wtirepr essur esensor s,e.g. inwint ertires,
ar eaut omaticall yta ught -indur ing thefirs tjou r‐
ne yth ey areused.
The tirepr essur eand thetir ete mp eratur e
appear inthemultifunc tiondispla y
(→ pag e392).
If th er eis asubs tantia lpr ess ure loss orifth e
tir ete mp eratur eis exc essiv e,youwill bewarned
in thefo llo wing ways:
R viadisp lay messa ges(→ pag e458)
R viathe0077 warning lam pin theins trument
clus ter(→ pag e486)
The tirepr essu remonit oring system isonl yan
aid. Itis thedr iver's responsibili tyto setth etir e
pr essur eto there comme ndedcoldtirepr ess ure
su itab leforth eoper ating situation .Se tth etir e
pr essur efo rcold tires using atir epr essu re
ga ug e. No tethat thecor rect tirepr ess urefo rth e
cur rent operati ng situa tionmu stfirs tbe taught -
in to thetir epr essur emonit oring system. In
mos tcases, thetir epr essur emonit oring sys‐
te m wil lau tomatical lyupdat eth ene wrefere nce
va lues afte ryo uha ve chang edthetir epr essur e.
Yo ucan ,ho we ver,also updat eth ere fere nce val‐
ues byrestar tin gth etir epr essur emonit oring
sy stem manually (→pag e393).
Sy stem limita tions
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth etir epr essur eis setincor rectl y
R Ifth er eis asudden pressur eloss caused, for
ex am ple, byafo re ign obje ctpene trating the
tir e
R Ifth er eis amalfunct ioncaused byano ther
ra dio signal source
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(→ pag e388)
Chec kingthetir epr essur ewith thetir epr es‐
sur emoni toring system
Re quirement s:
R The ignit ionisswitc hedon. On-
boar dcom puter:
, Service .
Tires
One ofthefo llo wing displa ysappear s:
R Cur rent tirepr ess ure and tirete mp eratur eof
th eindividual wheels: R
Tire pressure willbedisplayed afterdriving a
few minutes
R Tire Pressure MonitorAct ive: thete ac h-in
pr oce ssofthesy stem isno tye tcomple te.
The tirepr essur esarealr eady being moni‐
to re d. #
Com pareth etir epr essur ewit hth ere com‐
mend edtirepr ess urefo rth ecur rent operat‐ 39
2
Whe elsand tires

ing
con dition (→pag e389 ).Obser vethe
no teson tirete mp eratur e(→ pag e388).
% The values displa yedin themultifunc tiondis‐
pla yma yde viat efrom those ofthetir epr es‐
sur ega ug eas they referto sea leve l.At high
altitudes, thetir epr essur eva lues indic ated
by apr essur ega ug ear ehigh erthan those
sho wnbytheon- boar dcom puter.In this
case, donotre duce thetir epr essur e.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(→ pag e388)
Re star ting thetir epr essur emoni toring sys‐
te m
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status on
eac hof thefo ur wheel s(→ pag e38 8).
Re star tth etir epr essur emonit oring system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed. R
The wheels ortires have been chang edor
ne wlyins talled.
On- boar dcom puter:
, Service .
Tires #
Swipe down wardson theTo uc hCon trol on
th elef t-hand sideofthesteer ing wheel.
The Use Current Pressures asNew Refer-
ence Values? messageis sho wninthemulti‐
func tion displa y. #
Tobegin restar t,pr ess theTo uc hCon trol on
th elef t-hand sideofthesteer ing wheel.
The Tire Press. MonitorRestart edmessag eis
sho wninthemultifunc tiondispla y.
Cur rent wa rning mess ages aredele tedand
th e0077 yello wwa rning lam pgoes out.
Af teryo uha ve been driving fora fe w
minut es,thesy stem checks whe ther thecur‐
re nt tirepr ess ures arewi thin thespecif ied
ra ng e. The current tirepr ess ures areth en
accep tedas refere nce values andmon itor ed.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(→ pag e388) Ra
dio equipme ntappr oval of thetir epr es‐
sur emoni toring system
Ra dio equipme ntappr oval number s Co
untr yR adiotype approval number
Ca nada IC:2546A -AG5S P4
US AF CCID:MRXA G5SP4
FCC ID:MRXM FR Fu
rther information onthedeclar ationofcon ‐
fo rm ity forwir eles sve hicle component s
(→ pag e24 ). Loading
theve hicl e No
teson Tire and Loading Information plac‐
ar d &
WARNIN GRisk ofacci dent from overloa‐
ded tires
Ov erloaded tires ma yove rheat and burstas a
con sequenc e.Ov erloaded tires can also Whee
lsand tires 393

im
pair thesteer ing and handling charact eris‐
tic sand lead tobrak efa ilur e. #
Obser vetheload-bear ingcapacity of
th etir es. #
The load-bear ingcapacity mustbe at
leas thalf thegr oss axle weight rating of
th eve hicle. #
Neverove rload thetir es by exc eeding
th emaximum load. The
Tire and Loadi ngInfo rm atio nplacar dis on
th eB-pillar onthedr iver's side oftheve hicle. 1
Tire and Loadi ngInfo rm atio nplacar d %
The datasho wnintheillus tration isexam ple
dat a.
The Tire and Loadi ngInfo rm atio nplacar dsho ws:
R Maximum numberofseats 2accor dingto
th emaximum numberofpeople permitt edto
tr ave lin theve hicle.
R Maximum permissible load3com prises the
gr os swe ight ofall vehicle occupants, load
and luggage. R
Recomme ndedtirepr ess ures 1 forcold
tir es. The recomme ndedtirepr ess ures are
va lid forth emaximum permissible loadand
up tothemaximum permissible vehicle
speed.
Please alsonote:
R Information onper missib lewe ight sand loads
on theve hicle identif ication plate
(→ pag e41 8).
R Informatio non tirepr essu reinthetir epr es‐
sur eta ble (→pag e389 ).
Fu rther relat ed subje cts:
R Determ inin gth emaximum permissible load
(→ pag e39 4)
R Noteson tirepr essur e(→ pag e388). De
term ining thema xim um permis sible load The
follo wing steps have been developed as
re qu ired ofall manuf acturersunder Title 49,
Co de ofU.S. Feder alRe gulations, Part57 5, pur‐
sua nttothe"N ational Traf fic and MotorVe hicle
Saf etyAc tof 1966". 39
4
Whee lsand tires

#
Ste p1: loca tethest at emen t"The combined
we ight ofocc upant sand load should never
exc eed XXX kgorXXX lbs." ("The combined
we ight ofocc upant sand load should never
exc eed XXX kgorXXX lbs.") onyour vehicle's
Ti re and Loadi ngInfo rm atio nplacar d. #
Ste p2: determ ine thecombin edweight of
th edr iver and passeng ersth at will betravel‐
ing inyour vehicle. #
Ste p3: subtr act thecombin edweight ofthe
dr iver and passeng ersfrom XXX kgor
XXX lbs. #
Ste p4: there sulting figur eeq uals theper‐
missible cargoand luggageload capacity .Fo r
ex am ple: If"XXX "eq uals 1400 lbs and ther e
ar efive occupant sin your vehicle witha
we ight of150lbs eac h,themaximum cargo
and luggageload capacity is650 lbs(1400 -
75 0(5 x15 0) =650 lbs). #
Ste p5: determ ine thecombin edweight of
lugg ageand load that theve hicle willbecar‐ ry
ing. Forsaf etyre ason s,this we ight mayno t
saf elyexc eed theav ailable cargoand lug‐
ga ge load capac itycalc ulatedinstep 4.
Ev en ifyo uha ve cal cul ated thetot alload care‐
full y,yo usho uld still mak esur eth at themaxi‐
mum permissible gross mass andthemaximum
per missible axleload ofyour vehicle areno t
exc eeded. Details can befound ontheve hicle
identif ication plate. #
Have your loaded vehicle –including driver ,
occupants andload –we ighed onave hicle
we ighbr idge.
The measur edvalues mayno texc eed the
maximu mper missi blevalues stat ed on the
ve hicle identif ication plate.
Fu rther relat ed subje cts:
R Calculation exam ple forde term inin gth emax‐
imum load(→pag e395)
R Tire and Loadi ngInfo rm atio nplacar d
(→ pag e39 3) R
Tire pressur eta ble (→pag e389 )
R Vehicle identif ication plate Calculation
exam ple forde term ining the
ma ximum load The
follo wing table showsexam ples ofhowto
cal cul ateto ta land load capac itieswithva rying
seatin gcon figur ations anddiffere nt num bers
and sizes ofocc upant s.The follo wing exam ples
use amax imum loadof1500 lbs (680 kg).This
is forillus tratio npur pos esonly.Mak esur e
yo uar eusin gth eactual loadlimit foryo ur vehi‐
cle stat ed on your vehicle's Tire and Loadi ng
In fo rm atio nplacar d(→ pag e39 3).
The high erthewe ight ofall theoccupant s,the
smaller themaximum loadforlug gage . Wheels
andtires 395

Ste
p1 Ex
am ple 1E xamp le2
Combine dmaxim umweight ofocc upant sand
load (datafrom theTire and Loadi ngInfo rm atio n
placar d) 15
00 lbs (680 kg)1 500lbs(680 kg) Ste
p2 Ex
am ple 1E xamp le2
Nu mb erofpeople intheve hicle (driver and
occupants) 51
Dis trib uti on oftheoccupant sF ront:2
Re ar:3 Fr
ont :1
We ight ofocc upant sO ccupant1:150lbs (68 kg)
Occupant 2:180lbs (82 kg)
Occupant 3:160lbs (73 kg )
Occupant 4:140lbs (63 kg)
Occupant 5:120lbs (54kg ) Occupant
1:200 lbs(91 kg )
To talwe ight ofall occ upant s7 50lbs (340 kg)2 00lbs (91 kg ) 396
Wheels andtires

Ste
p3 Ex
am ple 1E xamp le2
Pe rm issible load(maxim umgros sve hicle weight
ra ting from theTire and Loadi ngInfo rm atio n
placar dmin usthegr oss weight ofall occ upant s)15
00 lbs (680 kg)00F8 75 0lbs (340 kg)= 75 0lbs
(340 kg) 15
00 lbs (680 kg)00F8 200 lbs(91 kg )= 13 00 lbs
(589 kg) Wheels
andtires 39
7

Ti
re labeling Ov
ervie wof tirelabeling 1
Uniform Tire Qua lityGradi ng Standar d
(→ pag e39 8)
2 DOT,Tire Identif ication Number
(→ pag e399)
3 Maximu mtireloa d(→ pag e400)
4 Maximu mtirepr essu re(→ pag e400 ) 5
Manuf acturer
6 Char acteristics ofthetir e(→ pag e40 1)
7 Tire size designation, load-bearing cap acity,
spe edrating andload index(→ pag e40 1)
8 Tire nam e
% The data sho wnintheimag eis exam ple
dat a. Ti
re Quality Grading In
accor dance withth eUS Depar tmentof Trans ‐
por tatio n's "Uni form Tire Qua lityGradi ng Stand‐
ar ds", tireman ufact urersar ere qu ired tograde
th eir tires on thebasis ofthefo llo wing thre eper‐
fo rm anc efa ct or s: 1
Tread weargrade
2 Tract ion grade
3 Temp eratur egr ade
% The datasho wnintheimag eis exam ple
dat a.
% The classificat ion isno tleg allyst ipulat edfor
Canad a,but itis ge ner ally stat ed.
Tr ead weargrade
The tread weargrade isacom parativ era ting
ba sedon thewe arrate of thetir ewhen tested
under controlled conditions onaspecif iedtest
tr ac kof theUS Depar tmentof Trans portatio n.
Fo rex am ple, atir egr aded 150wo uld wearone 398
Wheelsand tires