2020 MERCEDES-BENZ GT R ROADSTER wheel bolts

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

#
Alw aysswitc hof fth ewindshield wipers
and theignition beforecleanin gth e
winds hieldorwiper blades. &
WARNIN GRisk ofburnsfrom theta il‐
pipe andtailpipe trims
The exhaus tta ilpipe andtailpipe trims can
becom eve ry hot.Ifyo uco me intoco ntact wit
hth ese partsof theve hicle, youco uld
bur nyo urself . #
Alw aysbe par ticular lycareful arou nd
th eta ilpipe andtheta ilpipe trims and
super visechildr enespec iallycloselyin
th is area. #
Allo wvehicle partsto cool down before
to uc hin gth em. Obser
vethefo llo wing informa tion: No
teson cleaning andcareA voiding vehicl edamag e
Wheel s/rims
Usewaterand acid-free whee lclea ners. R
Donotuse acidicwhee lclea nersto remo vebrak edus t.
This could damag ewheel boltsandbrak ecom ponen ts.
R Toavoid corrosion ofthebr ak ediscs andbrak epads, drive
th eve hicle fora fe w min utes afte rclea ning beforepar king
it. The brak ediscs andbrak epa dswarm upand dryout .
Wi ndo ws
Cleanwindowsinside andouts idewithadam pclo thand with
a cle anin gag ent recomme ndedforMer cedes-Benz. Do
notuse dryclo thsor abr asiv eor sol vent-ba sedcleani ng
ag ents tocle an theinside ofwindo ws.
Wi per blades
Foldout thewiper blades andclean them using adam pclo th.D ono tclean thewiper blades tooof ten. 30
8
Ma intena nce and care

#
Position hubcap1and turnuntil itis in the
ri ght position. #
Position socket2 onhubcap 1. #
Position lugwrenc h3 onsoc ket2 and
tig hten hubcap 1.
Spe cified tigh tening torq ue: 18lb-f t
(25 Nm). Ra
ising theve hicl ewhe nch angi ngawhe el Re
quirement s:
R Ther ear eno per sons intheve hicle.
R The vehicle hasbeen prepar edfora whee l
ch ang e(/ page35 4).
Im por tant noteson using thejac k:
R Use onlya ve hicle-specif icjac kth at has
been approvedby Mer cedes-Ben zto raise
th eve hicle.
R The jackis onl ydesigned forra ising and
holdin gth eve hicle fora shor ttime whilea
whee lis being chang edand notfo rmaint e‐
nance workund ertheve hicle. R
The jackmus tbe placed onafirm ,fl at and
no n-slip surface. Ifneces sary,use alar ge,
fl at, load- bearing,no n-slip unde rlay .
R The foot ofthejac kmus tbe position edverti‐
call yunder thejac ksuppor tpoint . Ru
les ofcon duct when theve hicle israised:
R Neverpla ceyour han dsorfeet und erthe
ve hicle.
R Neverlie under theve hicle.
R Donotst ar tth eengine anddonotre lease
th eelectr icpar king brak e.
R Donotopen orclose anydoor sor thetrunk
lid. #
Using thelug wrenc h,loosen thewheel bolts
on thewheel youwish tochang eby about
on efull turn.Do notuns crew thebolts com‐
ple tely. Wh
eelsand tires 355

#
Position jack2 atjac ksuppor tpoint 1. #
Turn crank 3cloc kwiseunti ljac k2 sits
com plet elyon jacksuppor tpoint 1and the
base ofthejac klies evenlyon thegr ound. #
Turn crank 3unti lth etir eis raised amaxi‐
mum of1.2 in (3 cm) from thegr ound. #
Loosen andremo vethewheel (/page35 7). Re
mo ving awh eel Re
quirement s:
R The vehicle israised (/page355).
Ve hicl eswith AMG ceramic high-pe rfor m‐
ance composit ebr aki ng system:
* NO
TEDama getothecer amic brak edisk
when chang ingawheel Mer
cedes -AMG vehicl eswith ceramic
br ak edis ks:dur ing remo valand reposition ‐
ing ofthewheel, thewheel rim ma yst rike
th ecer amic brak edisk anddamag eit. #
Take par ticular care. #
Ask another per son forassi stanc eor
use asec ondcen tering pin. Whe
nch ang ingawheel, avoidapplyin gan yfo rc e
to thebr ak ediscs, sincethis could impair the
le ve lof com fort when brakin g. *
NO
TEDama getothre adin gfrom dirton
wheel bolts #
Donotplace wheel boltsin san dor on
a dir tysur face. #
Unscr ew theupper mostwheel boltcom‐
ple tely. #
Screw align mentbolt 1intoth eth re ad
ins tead ofthewheel bolt. #
Unscr ew there maini ngwhee lbolts com‐
ple tely. #
Remo vethewheel. Wheels
andtires 35
7

#
Installth ene wwheel (/page358). Mounting
ane wwheel Re
quirement s:
R The wheel isremo ved(/ page35 7). &
WARNIN GRisk ofacci dent from losing a
whe el
Oil ed, grea sed ordamag edwhe elbol t/whe el
nut thre ads orwheel hub/wheel mounting
bolt thre ads can caus eth ewheel bolts/
wheel nutstocome loose.
As are sult, youco uld lose awheel whiledriv‐
ing . #
Neveroil orgrease theth re ads. #
Intheeve ntofdama getotheth re ads,
con tact aqu alif ied spec ialistwo rkshop
immediat ely. #
Have thedamag edwheel boltsordam‐
ag ed hub thre ads replaced. #
Donotcon tinue driving. #
Obser vetheinf ormation onthech oice of
tir es (/ page350).
Fo rtir es wit haspecif ieddirection ofrotatio n,an
ar ro w on theside wallof thetir eindicat esthe
cor rect dire ction ofrotatio n.Ob serveth edir ec‐
tion ofrotatio nwh en installing.
* NO
TEDama getothecer amic brak edisk
when chang ingawheel Mer
cedes -AMG vehicl eswith ceramic
br ak edis ks:dur ing remo valand reposition ‐
ing ofthewheel, thewheel rim ma yst rike
th ecer amic brak edisk anddamag eit. #
Take par ticular care. #
Ask another per son forassi stanc eor
use asec ondcen tering pin. #
Slide thewheel tobe mount edont oth e
align mentbolt andpush iton . &
WARNIN GRisk ofinju ryfrom tight ening
whee lbol tsand nuts
If yo utig hten thewheel boltsorwheel nuts
when theve hicle israised, thejac kcould tip. #
Onlytight enwheel boltsorwheel nuts
when theve hicle ison thegr ound. #
Besureto obser vetheins truction sand
saf etyno teson "Cha nging awheel"
(/ page350). #
Forsaf etyre ason s,on lyuse wheel bolts
whic hha ve been approvedby Mer cedes-
Benz andforth ewheel inqu estion .
* NO
TEDama getopaintw orkof thewheel
ri m when screwing onthefirs twh eelbo lt If
th ewheel hastoomuc hpla ywhen screw‐
ing inthefirs twh eelbo lt, thewheel rim pai nt
can bedama ged. #
Press thewheel firm lyag ains tth e
wheel hubwhen screwing onthefirs t
wheel bolt. 358
Wheels andtires

#
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat eduntil they are
fi ng er-tig ht. #
Unscr ew thealignment bolt. #
Tight enthelas twheel boltuntil itis fing er-
tig ht. #
Lowe rth eve hicle (/page359). Lo
we ring theve hicl eaf te ra wh eelch ang e Re
quirement s:
R The newwheel hasbeen installed
(/ page358) . #
Tolowe rthe vehicl e:tur nth ecr ank ofthe
jac kcou nter-clo ckwise untilth eve hicle is
once again standi ngfirm lyon thegr ound. #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 with
a max imum of59 lb-ft(80 Nm). #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 to
th especif iedtight ening torq ue of133lb-f t
(1 80 Nm). &
WARNIN GRisk ofinju rythro ugh incor‐
re ct tigh tening torq ue
Th ewh eelscou ldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed tighteningto rq ue. #
Makesur eth ewheel boltsorwheel
nuts aretight ened tothepr escr ibed
tight ening torq ue. #
Ifyo uar eno tsur e,do notmo vethe
ve hicle. Consult aqu alif ied spec ialist
wo rkshop andhave thetight ening tor‐
qu ech eckedimmediat ely. #
Chec kth etir epr essur eof thene wlymoun‐
te dwheel andadjus taccor dingly. #
Vehicl eswith atir epr ess uremonit oring
sy stem: Restar tth etir epr essur emonit oring
sy stem (/ page33 7).
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(/ page33 1) Wheels
andtires 359

W
Wa rm-up (on-bo ardco mp uter,Pe r‐
fo rm ance menu) .......................................174
Wa rning lam ps
see Warning/ indic ator lam ps
Wa rning system
see ATA(anti-t heftal ar m system)
Wa rning/indicat orlam p
0025AB Swa rning lam p........................ 417
0027 Brak ewa rning lam p(US A)...........4 20
004DBr akes warning lam p(Canada) .... 420
00ACCoolan twa rning lam p.................4 27
003D Electrica lma lfunctio nwa rning
lam p................................................ .... 426
00B9En ginediagno siswarning lam p...4 26
00BBESP ®
OFF warning lam p.............. 419
Æ ESP®
SPO RTwarning lam p.......... 419
00E5 ESP®
wa rning lam pflashes .......... 418
00E5 ESP®
wa rning lam plight sup .......4 18
00B6 Fuelreser vewarning lam p.. 426 ,42 7 0024Re
dindicat orlam p,elect ric
par kingbr ak eapplied (Canada only)...4 22
0049Re dindicat orlam p,elect ric
par kingbr ak eapplied (USAonl y)........ 422
0075Re stra int system warning lam p...4 23
0076Seat beltwa rning lam pflashes ...4 24
0076 Seatbel twa rning lam plight s
up ........................................................ 424
äSusp ension warning lam p...........4 25
0077Ti repressur emonit oring sys‐
te m wa rning lam pflashes .............. .....4 30
0077Ti repressur emonit oring sys‐
te m wa rning lam plight sup ............ .....4 29
LWa rning lam pfo rdis tance
wa rning func tion ............................ .....4 25
ÙWa rning lam pfo relectr icpo we r
st eer ing ............................................... 430
0024Ye llowelect ric pa rking brak e
indic ator lam pis malfun ctionin g.... .....4 22 Wa
rning/indicat orlam ps........................ 416
Ov ervie w ..............................................4 16
PA SSENGER AIRBAG ............................ 43
Wa rranty ....................................................26
Wa sher fluid
see Windsh ield wa sher fluid
Wa shing byhand (care)...... ....................303
Wa terta nk
see Air-water duct
We ar
Br ak edis cs ....... ................................... 118
Br ak epa ds <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ..118
Wheel bolts.......................................... 119
We ather information ...............................245
We bbr ow ser
Calling upawe bpag e.........................2 70
Ca lling up options ................................271
Callin gup these ttings .........................2 71
Del eting abook mark...........................2 71
Del eting brow ser data.......................... 271
Endi ng............. .................................... 271
Managing bookmarks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 271
Ov ervie w ............................................. 270 46
4
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