suspension MERCEDES-BENZ GT R ROADSTER 2020 Owner's Manual

1
Steer ing wheel paddle shifters →
126
2 Comb inationswit ch →
96
3 Start/ stop butt on →
110
4 Media display →
197
5 Switches theseat heating on/off →
82
6 Switc hestheseat ventil ation on/o ff →
83
7 Switc hesAIRSC ARFon/of f →
83
8 Front camer a →
161
9 Haza rdwa rning lam ps →
97
A Parking AssistPA RK TRONI C →
158
B PASSENGER AIRBAGind icat orlam p →
43
C Glovebox →
90
D Touc hpad →
197
E Control kn ob forvo lume andswitc hingsound
on/ off →
197
Swi tches themultimedia system on/ off →
197
F ECO star t/ stop funct ion →
115 G
Extend sand retracts activeaer odyn amics
pr ofile →
156
H AMG Perfor mance exhaus tsy stem →
116
I AMG E-SELEC Tsel ect orleve r →
123
J Activates /de activatesESP ®
→
140
K AMG adaptivespo rtsuspension system →
157
L Manual gearshif ting →
126
M DYNA MIC SELE CTswitc h →
121
N Stow agecom partment →
89
O Climat econ trol systems →
105
P Control pan elforth emultimedia system
(s te er ing wheel) →
170
Q AMG steer ing-wheel buttons →
155
R Adjus tsthesteer ing wheel →
85
S Contr olpanel forth eon- boar dcom puter →
170
Oper ates cruise control →
145
Oper ates ActiveDis tance AssistDIS TRONI C →
148 At
aglanc e– Coc kpit 7

dat
ais temp oraryand isonl ypr ocessed inthe
ve hicle itself. Onlya small portion ofthedat ais
st or ed intheeve ntor fault mem ory.
When your vehicle isser viced, tech nica lda ta
fr om theve hicle canberead out byser vice net‐
wo rkem ployees (e.g. workshops, manufactur‐
er s) or third par ties (e.g. breakdo wnservice s).
Ser vice sinc lude repair services, maintenanc e
pr ocesses ,wa rrant yclaim sand qualit yassur ‐
anc emeas ures, forex am ple. Theread out isper‐
fo rm ed via theleg allypr escr ibed portfo rth e
diagnos ticsconnection intheve hicle. The
re spectiv eser vice networklocations orthird
par ties collec t,pr oces sand usethedat a.The y
documen tte ch nica lst atus esoftheve hicle,
assis tin findi ng ma lfunctio nsand improv ing
qu alit yand aretransm itted tothemanuf acturer,
if neces sary.Fu rther mor e,themanuf actureris
subject toproduct liability .Fo rth is, themanu‐
fa ctur errequ ires tech nica lda ta from vehicles.
Fa ult mem ories intheve hicle canberese tby a
ser vice outle tas par tof repair ormaint enanc e
wo rk. Dep
endingontheselect edequipment, youcan
im por tdat aint ove hicle convenie nce and info‐
ta inm ent func tionsyo urself .
This includes, forex am ple:
R Mult imed iadata suchas music ,fi lms orpho‐
to sfo rpla yba ckinan integratedmultimedia
sy stem
R Address book datafo ruse inconnection with
an integr ated hands-fr eesystem oran inte‐
grat ednavig ation system
R Entere dna vig ation destinations
R Dat aabout theuse ofInt erne tser vices
This datacan besave dlocall yin theve hicle orit
is locat edon ade vice whichyo uha ve connect ed
to theve hicle (e.g.asmar tphone, USBflash
dr ive or MP3 player). Ifth is dat ais stor ed inthe
ve hicle, youcan deleteitat anytim e.This data
is sen tto third par ties onlyat your requ est,par‐
ticular lywhen youuse onlineser vices inacc ord‐
anc ewit hth ese ttings that youha ve select ed.
Yo ucan stor eor chang econ venie nce settings /
ind ividu aliza tionin theve hicle atanytime. Depending
ontheeq uipment, this inc ludes, for
ex am ple:
R Setting sfo rth eseat andsteer ing wheel posi‐
tion s
R Suspension andclimat econ trol settings
R Cus tomizations suchas interior ligh ting
If yo ur vehicle isaccor dinglyeq uipped ,yo ucan
co nn ect your smar tphon eor ano ther mobile end
de vice totheve hicle. Youcan contro lth is by
means ofthecon trol element sint egrat edinthe
ve hicle. Imagesand audiofrom thesmar tphon e
can beoutput viathemultimedia system. Cer‐
tai ninf orma tionis simu ltane ously trans ferred to
yo ur smar tphon e.
De pen dingon thetype ofintegr ation, this can
inc lude:
R General vehicle data
R Position data
This allowsyouto use selected apps onyour
smar tphon e,suc has navig atio nor musi cpla y‐
bac k.Ther eis no further interaction between the
smar tphone andtheve hicle; inpar ticular ,ve hi‐
cle datais no tdir ectl yaccessible. Whichtype of Gener
alno tes 27

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 Dr
iving andparking 11
7

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 117). Wh
eelsan dtir es 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 ofacci dent from dam‐
ag ed tires
Dama gedtir es can cause tirepr essur eloss.
As are sult, youco uld lose contro lof your
ve hicle. Dr
iving andparking 11
9

#
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 119)
R Wheelhub sin clu ding thewheel bearings Ae
rodynami cco mp onent s Ac
tiv eaer ody nami csprofile &
WARNIN GRisk ofbeco ming trap ped
whe nyo ure tract theactiv eaer odynam‐
ics profile manually
When youre tract theactiv eaer odynamics
pr ofile manuall y,body partsma ybecome
tra pped. #
Ensur eth at no oneis in themo vement
ra ng eof theactiv eaer odynamics pro‐
fi le when youar ere tracti ngtheactiv e
aer odynamics profile. 12
0
Driving and parking

LED
segments lightup, traction controlis
pr ov iding themaximum leve lof assis tance
(ON ).
If yo uact ivat eES P®
,th eleve lof assis tance from
tr acti oncontr oliscontr olled au tomatical ly.Dis‐
pla ybutt on1 then sho wsthecur rent drive pr o‐
gr am . Fu
nction oftheAMG steer ing-wh eelbuttons The
AMG steer ing-wheel buttons include two
additional control element son thesteer ing
wheel. Yo
ucan assig ntw ove hicle functionsofyour
ch oice tothelef tcon trol element .Yo ucan
ch ang ebe tween theav ailable function sby
pr essing displaybutt ons 2repeat edly.The cur‐
re ntly select edfunc tions aredispl ayed indispla y
butt ons 2.
The follo wing functionsar eav ailable:
R ESP®
(/ page14 0)
R AMG adaptivespo rtsuspension system
(/ page15 7)
R AMG Perfor mance exhaus tsy stem
(/ page11 6)
R ECO star t/ stop funct ion(/ page11 5)
R Manua lge arshif ting(/ page12 6)
R Front and rear vie wcam era(/ page16 1)
If yo uha ve assig nedafun ction toone ofdispla y
butt ons 2,youcan oper ateth is func tion with
cor responding button1.
The assignment ofdispla ybutt ons 2remains
st or ed eve naf te ra ne wengine star t,but the
oper ating status ofthere spectiv efunction is
re se tto thebasic setting. Yo
ucan chang ebe tween thedr ive pr og rams
wit hstabiliz erbar actuat or3. The selec ted
dr ive pr og ram app earsin disp lay butt on4. By
pr essing display butt on4, youcan direct ly
acc ess thedr ive pr ogr am = (Individua l)
(/ page12 1).
If adj ustable traction control isactiv ated, set
po we rassi stanc ein inc rements using stabiliz er
bar actuat or3 (/ page15 4). Re
ar wing Ad
jus tingthe fixe dre ar wing
Re quirement s
A soc ketwr enc hand are leasable, medium-
st re ngt hbo ltlock areto hand.
The rear wing improv es there ar axle output and,
th er efor e, theve hicle's driving stabilit y.Yo ucan
mo vethere ar wing intoan incline dand aflat
posit ion.
When youmo vethere ar wing intoth einclin ed
position ,th ere ar axle output and theair resis t‐
ance increase. Dr
iving andparking 15
5

#
Toextend/r etra ct:pr ess thedispla ybutt on
1. Notethere strict ed grou nd clearance
whe nth eactiv eaer odynamics profile is
ex tende d.
The activeaer odyn amicspr ofile extends to
its maxim umorretracts complet ely.
Dis play butt onsymbol 2and itscolor indi‐
cat eth efo llo wing positionsoftheaer ody‐
namics profile:
R Aerodynamics profile retract ed(blue)
R Aerodynamics profile extende din differ‐
ent position s(red)
R Aerodynamics profile isex tendi ng or
re tracti ng(gray)
If yo upr ess displ aybutt on1 again during
th eex tensi on proce ss,theaer odynamics
pr ofile will retract once more.Ifyo upr ess
displ aybutt on1 again during there tracti on
pr oce ss,theaer odynamics profile will extend
once more.
% Ifyo upull away wit hth eactiv eaer odynam‐
ics profile extende d,theactiv eaer odynam‐
ics profile will automaticall yre tract. Always no
te there strict ed grou nd clearance when
th eactiv eaer odynamics profile isex tende d. AM
Gadap tivespo rtsuspension system Fu
nction ofAMG adaptive spor tsusp ension
sy stem
AMG adaptivespor tsuspen sionsystem isan
electr onicall ycon trolled damping system for
im prov ed driving comfortand increased driving
saf ety.
The dam ping isadjus tedindividually toeac h
wheel anddepends onthefo llo wing fact or s:
R thedr iving style, e.g. spor ty
R thero ad con dition ,e.g .bum ps
R theindividual selectionofthedr ive pr ogr am:
A (Comf ort), C (Sport)or B (Sport
+)
% The setting can also besetusing the
DY NA MIC SELE CTswitc h.To do this, the
same suspension setting mustbe select ed
fo rAMG adaptive spor tsuspen sionsystem
and theDY NA MIC SELE CTswitc h. %
When theve hicle isstar tedag ain, the"Com‐
fo rt"se tting isact ivat ed aut omat ically.
Selec tingtheAMG adaptiv espor tsusp en‐
sion system setting
Yo ucan selectfrom thre edif fere nt suspe nsion
se ttings :
R COMF ORT ensuresa comf ortable suspen‐
sion setting. Select this suspen sionsetting if
yo upr efer aco mf ortable driving style.
R SPOR Tensur esafirm ersuspension setting.
Select this suspen sionsetting when employ‐
ing aspor tydrivin gst yle, e.g. onwinding
count ryroads.
R SPOR TPL US ensures ave ry firm suspension
se ttin g. Dr
iving andparking 15
7

#
Press displa ybutt on1.
The displa ybutt onsho wscurrentl ysel ect ed
su spe nsion setting 2:
R ä C(blue) :CO MF ORT
R ä S(yello w): SPOR T
R ä S+(red): SPOR TPL US The
select edsuspension settin gis sho wnin
th emultifunc tiondispla yas amessag e:
R AMG Suspension SystemCOMFORT
R AMG Suspension SystemSPORT
R AMG Suspension SystemSPORT+ Pa
rking Assis tPA RK TRONI C Fu
nction ofParking Assis tPA RK TRONI C Pa
rking AssistPA RK TRONI Cis an elec tron ic
par kingassi stanc esy stem withultr asound. It
monit orsth ear ea around your vehicle using mul‐
tiple sensor s1 onthefront bum perand onthe
re ar bum per.Pa rking AssistPA RK TRONI Csho ws yo
uth edis tance betwee nyo ur vehicle anda
de tected obs tacle visually and audibly .
Pa rking AssistPA RK TRONI Cis on lyan aid. Itis
no ta subs titutefo ryo ur att entio nto thesur‐
ro und ings.The responsibili tyforsaf emaneu ver‐
ing and parking remains withyo u. Mak esur e
th at ther ear eno per sons, animals orobjec tsin
th emaneuv ering area while maneuv ering and
par king in/exitingpar king spaces. Pa
rking AssistPA RK TRONI Cwa rning displa y(v ehi‐
cles without front and rear vie wcam era) 15
8
Driving and parking

Inf
orma tion onusin gapo we rwa sher &
WARNIN GRisk ofacci dent whenus ing
hig h-pr essurecle ani ng equipm entwith
ro und -spr ay nozzl es
The waterje tfr om aro und -spr ay nozzl e(d irt
gr ind er) maycau sedama getotires and sus‐
pe nsi on components that isno tvisi ble.
Com ponentsdamag edinthis wa yma yfa il
une xpec tedly. #
Donotus ehigh- press urecle ani ng
eq uipme ntwith round -spr ay nozzl esto
cle an your vehicle. #
Damag edtires orsuspension compo‐
nent smus tbe replaced 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 thetrunk lid
could openunintentionall y.
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, the
sof tto p, thewind deflect ornet,slits, electr i‐
cal com ponen tpar ts,batt eries, light sources
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 todir ect 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. Maint
enanc eand care303

Obser
vethefo llo wing when selecting,ins talling
and replacing tires:
R Onlyuse tires and wheels ofthesame type
(summer tires, wint ertires, MOEx tende d
tir es) and thesame make.
R Onlyins tallwheels ofthesame sizeonone
axle (leftand right).
It is onl yper missible toins talla dif fere nt
wh eelsi ze intheeve ntofaflat tirein order
to drive to thespecialis two rkshop.
R Onlyins talltir es ofthecor rect size ontoth e
wheels.
R Vehicl eswith atir epr ess uremonit oring
sy stem: Allinstalled wheels mustbe equip‐
ped withfunc tioningsensorsfo rth etir e
pr essur emonit oring system.
R Attemp eratur esbelo w45 °F(7°C), usewin‐
te rtir es orall-seaso ntir emar kedM+S forall
whee ls.
Wi nter tires bearing the004D snowflak esym‐
bol inaddition totheM+S marking prov ide
th ebes tpossible grip inwintr yro ad con di‐
tio ns. R
ForM+S tires, only usetires wit hth esame
tr ead.
R Obser vethemaximum permissible speedfor
th eM+S tires installed.
If th is isbelo wtheve hicle's maximum speed,
th is mus tbe indic ated byan appr opriate
label inthedr iver's field ofvision.
R Break inne wtires atmoder atespeeds for
th efirs t60 miles(1 00 km) .
R Replace thetir es afte rsix yearsat thelat est,
re ga rdless ofwe ar.
R Wh enreplac ingwith tires that donotfe a‐
tur eru n-flat charact eristics :ve hicles with
MOExt ended tires areno teq uipped witha
TIREFIT kitatthefa ct or y. Eq uip th eve hicle
wit haTIREFIT kitafte rre placing withtir es
th at do notfe atur eru n-f latch aract eristic s,
e.g .wint ertires.
Fo rmor einf ormation onwhee lsand tires, con‐
tac ta qu alif ied spec ialistwo rkshop.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page33 1) R
Tire and Loadi ngInfo rm atio nplacar d
(/ page33 8)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e345)
R Tire pressur eta ble (/ page333 ) No
teson rotat ing whee ls &
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Int erch ang ingthefront and rear wheels ifth e
wheels ortires have differe nt dimens ions
ma yse verely im pair thedr iving charact eris‐
tic s.
The wheel brak es orwheel suspension com ‐
pon entsma yalso bedamag ed. #
Rotate front and rear wheels onlyifth e
wheels andtires areof thesame dimen‐
sions. 352
Wheels andtires