2020 MERCEDES-BENZ AMG GT check engine

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
% Have thebr ak esy stem checkedat aqu ali‐
fi ed specialis two rkshop afte rit has been
subject edtoextreme load s. EC
Ostar t/s topfunc tion Ope
ratio nof the ECOstar t/s topfunc tion
The engineisswi tched offau tomatical lyin the
fo llo wing situat ionsifall vehicle conditions for
an aut omat iceng inestop areme t:
R Youbr ak eth eve hicle toast ands tillin trans ‐
miss ionposit ion005Bor005C. If
yo uswit chon theHOLD function intransmis‐
sion position 005Bor005C, theengine willautomati‐
call yst op inthefo llo wing situat ions:
R Youstop behind ave hicle that ispullin g
aw ay.
R Youstop atast op sign when ther eis no vehi‐
cle infront ofyou.
R Youtur nth esteer ing wheel hardat alow
speed.
% Intra nsmiss ionposition 005E,theengine is
no tswitc hedoffaut omaticall yeve nwh en
th eHOLD function isswitc hedon.
The engine isrestar tedaut omatic allyif:
R Youre lease thebr ak epedal intra nsmiss ion
position 005Bwhen theHOLD function isno t
activ eand theve hicle does notst ar tto
mo ve.
R Youshif tfr om trans mis sion position005D.
R Youre lease thebr ak epedal andtheve hicle
st ar ts to mo veon age ntle downh ill gr ad ient
at aspe edbelow 3mp h(5 km/h) .
R Youdepr esstheaccelera torpeda l. R
Youper man ently act ivat eman ualgearshif t‐
ing .
R Youpull thelef t-hand steer ing wheel paddle
shif ter.
R Anautomatic engine star tis nec essar y.
If th eengine wasswitc hedoffby theEC Ostar t/
st op funct ionand youlea vetheve hicle, awa rn‐
ing tone sou nds. TheVehicleRe adyto Driv e
Swi tch the IgnitionOff Befo reExiti ngdispl ay
messa gealso appear sin themultifunc tiondis‐
pla y.Ifyo udo notswit choffth eignition ,th e
ignit ionisaut omat icallyswitc hedoffaf te rone
minut e. 10
8
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 112)
R Whee lhub sinclu ding thewheel bearings No
teson engine oil Chec
kth eengine oilleve lbef oreoper atingin
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 og rams:
R o (Slipper y):optimized 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 parking 11
3

Ins
trum ent Disp layove rview &
WARNIN GRisk ofacci dent dueto an
ins trumen tdispla ymalf unction
If th eIns trument Displayhas failed ormal‐
func tioned,youma yno tre cogni zefuncti on
re strictions applyi ngtosaf etyre leva nt sys‐
te ms.
The oper ating safetyof your vehicle maybe
im pair ed. #
Drive on car efull y. #
Have theve hicle checkedimmediat ely
at aqu alif ied spec ialistwo rkshop. If
th eoper ating safetyof your vehicle is
im pair ed,parkth eve hicle immediat elyand
saf ely. Con tact aqu alif ied spec ialistwo rkshop. Ins
trument Displayin theWi des cree nCo ck‐
pit 1
Spee dometer
2 Digit alspeedome ter
3 Gear displa y
4 Exam ple: area foradd itional values
5 Coolant temp eratur edispla y
6 Multifunc tiondispla y
7 Fuelleve land fuel filler flap locatio nind ica‐
to r
% Further displa ycont entcan besho wnondis‐
pla y4 foradd itional values (/page16 4). Th
ese gm ents on spee do me ter1 indica tethe
sy stem status forth efo llo wing:
R Cruise control (/ page13 7)
R ActiveDis tance AssistDIS TRONI C
(/ page 139)
* NO
TEEngi nedama gedue toexc essiv ely
high engine speeds The
engine willbedamag edifyo udr ive wit h
th eengine intheov errevving rang e. #
Donotdr ive wi th theengine intheove r‐
re vving rang e. The
fuelsu pp lywillbe interru pted toprotect the
engine whenthere dmar kon theta ch ome ter
(o ve rrev ving rang e) isreac hed.
Dur ing norm aloper atingcon dition s,coo lant
te mp eratur edispla y5 mayrise tothere d
mar k. Ins
trument Displayand on-boar dcom puter 16
1

R
Steer ing ang le
R Engine speed
R Engine oil/tir ete mp eratur e
Based ontheanal ysis yo ucan checkand opti‐
mize driving charact eristic sfo ran yposi tion on
th etra ck.
Expor tingtrac ks orraces (USB ) #
Select Alltrack s.
An ove rview of all stor ed trac ks and races
ap pea rs. #
High light desired trac ks orraces. #
Sele ctÜ Options . #
Sele ctExport .
The select edtrac ks orraces can beexpor ted
to aUS Bstor ag ede vice conn ectedtothe
ve hicle.
Editing trac ks and recor dings #
Select Alltrack s. #
Highligh tth edesir edtrac k. #
Select Ü options . #
Select Rename orDele te. or #
Select atrac k. #
High light thedesir edrecor ding. #
Sele ctÜ options . #
Sele ctWea ther orDele te. Se
tting Drag Race Mult
imed iasystem:
4 Vehicle 5
TRACK PACE5
Drag Race
Measur ingacceler ation #
Select Acceleration.
Measur ementbegins whentheve hicle accel‐
er ates. Measur ementisincr ement al,insteps
of 30 mph(50 km/h) uptoamax imum of
18 0mp h(300 km/h) orup tothese tmaxi‐
mum speed.
Measur ementcanbestopped earlyby
selecting Stoporby stopping theve hicle. Quar
ter-mil era ce #
Select Quar terMile.
The timemeas uremen tru ns unti la mil eha s
be en trave led orapr ev iousl yse tdis tance
(e .g. 1/4 mile,1/3 mileor 1/2 mile)has
be en reac hed.
% The poss iblevalues forse tting theend dis‐
ta nce arede term ined bythesy stem and
cann otbe freel ych osen.
Measur ementcanbestopped earlyby selecting
Stop orby stopping theve hicle.
Manual star tfo rac ce lera tio nand quarter-
mil era ce #
Select Accel erat ionorQuar terMile . #
Select Man ualstart .
Thr eeredtraf fic lights appea rone afte rth e
ot her .The react ion timemeas uremen tst ar ts
when they chang eto green atthesame time.
The react ion timeis displa yedas soon asyou
dr ive of f.Ifyo udr ive of fto oear ly,th emes‐
sag eJump start.will appear andaccelera tion
or quartermile measu rement willbe can‐
celed . 21
0
Multimedia system

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(/ page28 7). Engine
compartment Opening/closing
thehood &
WARNIN GRisk ofacci dent ifth eengine
hood isunlatc hedwhile driving
An unloc kedengin ehood mayopen upwhen
th eve hicle isin mo tion andblockyo ur vie w. #
Neverunla tchth eengine hoodwhile
dr iving. #
Beforeev erytrip, ensur eth at the
engine hoodislatc hed. &
WARNIN GRisk ofacci dent andinjury
when openingand closingtheengine
hood
When opening orclosing theengine hood,it
ma ysuddenl ydr op intoth eend position .
Ther eis arisk ofinjur yfo ran yone inthe
engine hood's rang eof mo vement. #
Onlyopen orclose theengine hood
when ther ear eno per sons inthe
engine hood's rang eof mo vement. &
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
Cer tain com pone ntsin theengine compart‐
ment maycon tinue tomo veorsuddenly
mo veagain evenaf te rth eignition hasbeen
switc hedoff,e.g. thecooler fan.
Ma kesur eof thefo llo wing beforeper form ing
ta sk sin theengine compartmen t: #
Swi tchth eignition off. 288
Maintenanc eand care

#
Turn cap 1cou nter-cloc kwiseand remo ve
it. #
Addengin eoil. #
Replace cap1and turnit cloc kwise asfar
as itwill go. #
Chec kth eoil leve lag ain (/ page290 ). Chec
kingcoolant leve l &
WARNIN GRisk ofburnsfrom hotcom‐
ponent partsintheengine compartmen t
Cer tain com pone ntsin theengine compart‐
ment canbevery hot,e.g. theengine, the
ra diat orand partsof theex haus tsy stem. #
Allo wtheengine tocool down and only
to uc hco mp onent partsdescr ibedin
th efo llo wing. &
WARNIN GRisk ofscal ding from hot
cool ant
The enginecool ingsystem ispressur ized,
par ticular lywhen theengine iswa rm.If yo u
open thecap, youco uld bescalded byhot
coolant spraying out. #
Letth eengine cooldown beforeopen‐
ing thecap. #
When opening thecap, wearprotect ive
gl ove sand safetygl asses . #
Open thecap slowlyto release pres‐
sur e. #
Park theve hicle onaleve lsur face. #
Checkth ecoolant temp eratur edispla yin the
ins trumen tclus ter.
The coolant temp eratur emus tbe inthebo t‐
to m quarterof thete mp eratur edispla y. #
Slowly turncap 1cou nter-clo ckwise to
re lie ve ove rpressur e. 292
Maintenance andcare

#
When giving star tin gassis tance, alwa ys
mak esur eth at youon lyconnect bat‐
te ry term inals withident icalpolar ity. #
Dur ing star tin gassis tance, youmus t
obse rveth edescr ibedorder forcon‐
necting anddisconnecting thejum per
cables. #
Donotcon nect ordiscon nectthebat‐
te ry cla mp swhile theengine isrunning . &
WARNIN GRisk ofexplosion during
ch argin gpr oce ssand star tin gassis tance
Dur ing thech argin gpr oce ssand star tin g
assis tance, thebatt eryma yre lease anexplo‐
siv ega smixtur e. #
Avoid fire ,open flames ,cr eat ing spar ks
and smoking. #
Mak esur eth at ther eis suf ficie ntventi‐
la tio ndu ring thech argin gpr oce ssand
dur ing star tin gassis tance. #
Donotle an ove ra batt ery. &
WARNIN GRisk ofexplosion from afro‐
zen battery
A disc hargedbatt eryma yfreeze attemp era‐
tur es slightl yabo veorbelo wfreezing point.
Dur ing star tin gassis tance orbatter ych arg‐
ing ,bat tery gasma ybe released. #
Alw aysth aw afroz en bat tery out firs t
bef orech argin git or per form ing star t‐
ing assis tance. If
th eindicat or/warning lampsintheins trument
clus terdo notlig ht up atlow temp eratur es,itis
ve ry likelyth at thedisc hargedbatt eryhas fro‐
zen .In this case youma yne ither jump-start the
ve hicle norcharge thebatt ery.
The service life of abatt eryth at has been
th awe dma ybe dramaticall yshor tened .The
st ar tin gch aract eristic sma ybe impair ed,espe ‐
ciall yat low temp eratur es.
It is recomme ndedthat youha ve ath aw ed bat‐
te ry checkedat aqu alif ied spec ialistwo rkshop. All
vehicl es
* NO
TEDama gecau sed bynum erou sor
ex tende datt em ptsto star tth eengine Nu
me rous orextende datt em ptsto star tth e
engine maydamag eth ecat alytic converter
due tonon-co mbusted fuel. #
Avoid numer ousand extende datt em pts
to star tth eengine. Obser
vethefo llo wing pointsdur ing star tin g
assis tance and when chargin gth ebatt ery:
R Onlyuse undamag edjum per cables/c harg‐
ing cables withasuf ficie ntcross -secti onand
insu late dte rm inal clam ps.
R Non-insulat edpar tsof thete rm inal clam ps
mus tno tcom eint ocon tact with other metal
par tswhile thejum per cable/c harging cable
is con nect edtothebatt ery/jum p-start con‐
nectio npoi nt.
R The jumper cable/c harging cable mustno t
com eint ocon tactwi th anypar tswhic hma y
mo vewhen theengine isrunning . 31
2
Brea kdo wnassista nce

Se
tting upthefo lding chock Pr
epa ring theve hicl efo ra wh eelch ang e Re
quirement s:
R The requ ired tire-c hang eto ol kit isavailable.
If yo ur vehicle isno teq uipped withth etir e-
ch ang eto ol kit, consult aqu alif ied spec ialist
wo rkshop tofind outab ou tsu itab letools. R
The vehicle isno ton aslope.
R The vehicle ison solid, non-slipper yand leve l
gr ou nd . #
Apply theelectr icpar king brak emanually . #
Movethefront wheels tothest ra ight -ahead
posit ion. #
Shif tth etra nsmiss iontoposition 005D. #
Switc hof fth eengine. #
Mak esur eth at theengine cannotbe star ted. #
Place choc ks orother suitable items under
th efront and rear ofthewheel that isdiago‐
nall yoppos ite th ewheel youwish tochang e. #
Ifnec essar y,remo vethehub capcover
( / pag e345). #
Raise theve hicle (/page346). Ins
talling /remo ving plastichub caps Re
mo ving #
Remo vesoc ket2 and lug wr enc h3 from
th eve hicle tool kit (/ page34 4). #
Position socket2 onhubcap 1. #
Position wheel wrenc h3 onsoc ket2. #
Usingwheelwr enc h3, turnhu bcap 1
cou nter-clo ckwise andremo veit.
Ins talling #
Beforeins talling, checkhub cap1and the
wheel area fordir t,and cleanif necessar y. Wheels
andtires 34
5