2020 MERCEDES-BENZ GT R ROADSTER wheel size

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

The
wearpat tern son thefront and rear wheels
dif fer:
R Front wheels wearmor eon theshoulder of
th etir e
R Rear wheels wearmor ein thecent erofthe
tir e
On vehicles that have thesame sizefront and
re ar wheels ,ro tat eth ewheels accordingtothe
int erva ls in thetir emanuf acturer'swarrant y
book inyour vehicle documents. Ifth is isno t
av ailable, rotate thetir es every
3,000 to6,000 miles(5 ,000 to10,000 km),
dependin gon thewe ar.En sur eth at thedir ect ion
of rotatio nis ma intained .
Ob serveth eins truction sand safetyno teson
"Cha nging awheel" whendoing so
(/ page35 4). No
teson sto ring wheels When
stor ing wheels, observethefo llo wing
no tes:
R Afterre mo ving whee ls,stor eth em inacool,
dr yand prefer ably darkplace. R
Protect thetir es from contact with oil, grease
or fuel. Ov
ervie wof thetir e-c han getool kit Apar
tfr om some country- specif icvariant s,vehi‐
cles areno teq uipped withatir e-c hang eto ol kit.
Fo rmor einf ormation onwhi chtire-c hangi ng
to ols arere qu ired and appr ovedfo rper form ing a
wheel chang eon your vehicle, consult aqu alif ied
spec ialistwo rkshop.
Re quired tire-c hang eto ols mayinclude, for
ex am ple:
R Jack
R Choc k
R Lugwr enc h
R Alignmen tbolt The
tire-c hang eto ol kit islocat edon thelef tside
of thetrunk inthestow agecom partment behin d
ser viceflap 1. Whee
lsand tires 353

Seat
beltadjustment
Ac tivati ng/d eactiv ating ........... ..............37
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 37
Seat beltwarning
see Seat belts
Seat belts ...................................................3 7
Ac tivati ng/d eactiv ating seat belt
ad jus tment ............................................ 37
Re duced protect ion ...............................3 4
Re leasing ...............................................3 7
Sea tbel tad jus tment (function) ............. 37
Wa rning lam p........................................ 37
Seat cover(C are) ............ .........................310
Seat heating
Ac tivati ng/d eactiv ating ........... ..............82
Se at ventilat ion
Switc hingon/o ff<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 83
Se cond telephone .... ................................ 249
Con necting .......................................... 249
Fe atur es.............. ................................ 249
Selec tingage ar
see Changing gears Select
ingthesound profile
Bur mes ter®
high-end Surround
soun dsy stem ................................. ..... 294
Select orleve r
see E-SELECT selectorleve r
Self-t est
Au tomatic front pass engerfront air‐
bag shut off..... ....................................... 43
Sens ors(Car e).........................................3 07
Ser vice center
see Qualif iedspecialis two rkshop
Ser vice interva ldisp lay
see ASSYST PLUS
Ser vice station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 231
Se tting aspe ed
see Cruise contr ol
Se tting summe rtime <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 207
Se tting thedatefo rm at ....... ................... 207
Se tting thedis tance unit.........................2 11
Se tting thema pscale
see Map SETU
P(on-boa rdcom puter,Pe rfor m‐
ance menu )...............................................1 74
Shif tpadd les
see Steer ing wheel paddle shifters
Shif ting gears
Gea rshif tre comme ndation <0011001100110011001100110011001100110011001100110011001100110011
00110011> 126
Shor tmessag es
see Text mes sage s
Side airbag .................................................3 8
Side windo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 71
Closin g.................................................. 71
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 73
Con venie nce closing featur e.................7 3
Con venie nce openi ng <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ....72
Opening .................................................7 1
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
001100110011> 72
Pr oblem .................................................7 3
Size designation (tires) ........................... 345
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 54
Ac ous ticlocking verificati onsignal ....... 55
Batt ery <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>56
Energy consumption........... ...................55
Fe atur es................................................ 54 456
Index

Sho
wing/hi ding themenu ............... ....2 70
We bsit e
Calling up............................................ 270
Sho wing/hi ding thewe bbr ows er
menu ................................................... 270
Wheel chang e
Lo we ring theve hicle ........................... 359
Mounting ane wwheel ..................... ... 358
Re mo ving awhee l..... ......................... .3 57
Wheel rotat ion .........................................3 52
Whee ls
Ca re <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 307
Ch ecking <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 330
Ch ecking thetir epr essur e(man‐
uall y)................................................ ... 334
Chec kingthetir epr essur e(tir epr es‐
sur emonit oring system) ......................3 36
Def initio ns....... ................................... .347
DO T,Tire Identif ication Number (TIN)
..... .................................................. ......3 43
Flat tire ....... ......................................... 312
Ins talling .............................................. 358
Load index...........................................3 45
Load -bearing cap acity <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 345Ma
ximu mtireload <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ....344
Ma ximu mtirepr ess ure <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 344
MOExt endedtires <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ......313
No ise .............................................. .....3 30
No tes ................................................... 119
No teson installing .............................. 350
Ov ervie wof tirelabeling ...................... 342
Re mo ving ............................................ 357
Re placing .................................... 350, 354
Re star tin gth etir epr essur emonit or‐
ing system ...........................................3 37
Ro tating ........... ................................. ...352
Sel ecti on ........... ..................................350
Sno wch ains ........................................ 331
Spe edrating ........... .............................345
St or ing ............................................. ... 353
Te mp eratur egr ade .............................. 342
Ti re and Loadi ngInfo rm atio nplacar d
.. ...................................................... .....3 38
Ti re charact eristic s........................ ...... 345
Ti re pressur e(no tes) ........................ ....3 31
Ti re pressur emonit oring system
(funct ion)............................................. 335
Ti re pressur eta ble .......................... .... 333
Ti re Qua lityGradi ng .......... ................... 342
Ti re size designation ........................ ....3 45 TIREFIT
kit....... .....................................314
Tr act ion grade .....................................3 42
Tr ead weargrade .................................3 42
Un usual handlingch aract eristic s........ 330
Wi -Fi........ .................................................208
Ov ervie w ....... ......................................208
Se tting ................................................. 208
Se tting upaho tspo t....... ..................... 209
Wi nd scr een
Ins talling ................................................ 68
re mo val.................................................6 8
Wi ndo ws
see Side windo ws
Wi ndo ws(Car e).......................................3 07
Wi ndshield ............................................... 100
Re placing thewiper blades .................. 100
Wi ndshield
see Windsh ield
Wi ndshield washer fluid .........................3 67
No tes ................................................... 367
Wi ndshield washer system
To pping up...........................................3 01 Inde
x465