2020 MERCEDES-BENZ AMG GT R-ROADSTER tire pressure

TIREFIT kit
storage location The TIREFIT kit is located on
the left side of the
load compartment in thestow age compartment
behind service flap 1.
% You can find information on the po wer cate‐
gory (LK) and/or electrical data on the back
of the tyre inflation compressor:
R LK3 – 12V/20A, 240W, 1kg At
a dis tance of appr oximately 1 m tothe
tyre inflation compressor and appr oximately
1. 6 m abo vethe ground, thefo llowing sound
pressure le vels apply:
R Emission sound pressure le vel L
PA 83 dB
(A)
R Sound po wer le vel L
WA 91
dB (A)
The tyre inflation compressor is mainte‐
nance-free. If there is a malfunction, please
conta ct aqualified specialist workshop. Using
the TIREFIT kit Re
quirements:
R Tyre sealant bottle and tyre inflation com‐
pressor available (/ page 306)
R TIREFIT sticke rav ailable
R Glovesav ailable
Yo u can use TIREFIT tyre sealant toseal per fora‐
tion dama geof up to4 mm, particularly those in
th e tyre conta ct surface.You can use TIREFIT in
outside temp eratures down to-20 °C. &
WARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable toseal the
tyre proper ly, especially in thefo llowing
cases:
R there are large cuts or punctures in the
tyre (larger than damage pr eviously men‐
tioned)
R the wheel rims ha vebeen damaged
R afte r journe yswith very low tyre pressure
or with flat tyres #
Do not continue driving. #
Consult a qualified specialist workshop. &
WARNING Risk of injury and poisoning
from tyre sealant
Ty re sealant is hazardous tohealth and cau‐
ses ir rita tion. Do not allow it tocome into
contact wi thyour skin, eyes or clo thing, and
do not swallow it. Do not inhale any vapours.
Ke ep the tyre sealant away from children. 306
Breakdown assis tance

&
WARNING Risk of accident from driving
wi th sealed tyres
A tyre temp orarily sealed with tyre sealant
impairs the handling characteristics and is
not suitable for higher speeds. #
Adapt your driving style according lyand
drive carefull y. #
Do not exceed the maximum speed
limit with a tyre that has been repaired
using tyre sealant. #
Obser vethe maximum permissible speed for
a tyre sealed with tyre sealant 80 km/h. #
Affix th e upper section of the TIREFIT sticker
to the instrument clus ter in a location where
it will be easi lyseen bythe driver.
* NO
TEStaining from leaking tyre sealant Af
ter use, excess tyre sealant may leak out
from thefilling hose. #
Therefore, place thefilling hose in the
plastic bag that con tained the TIREFIT
kit. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal Ty
re sealant contains polluta nts. #
Have the tyre sealant bottle disposed of
professionall y,e.g. at a Mercedes-Benz
Service Centre. #
Stow th e tyre sealant bottle, the tyre inflation
compressor and thewa rning triangle. #
Pull away immediatel y. #
Stop driving af ter appro ximately ten minu tes
and check the tyre pressure using the tyre
inflation compressor.
The tyre pressure must now be at least
13 0 kPa (1.3 bar). &
WARNING Risk of accident due tothe
specified tyre pressure not being
attained
If th e specified tyre pressure is not reached,
th e tyre is too badly damaged. The tyre seal‐
ant cannot repair the tyre in this ins tance.
The braking and driving characteristics may
be great lyimpaired. #
Do not continue driving. #
Consult a qualified specialist workshop. Countries
that ha veMercedes-Benz
Service24h: you will find a sticke r with thete le‐
phone number, e.g. on the B‑pillar on the driver's
side. #
Cor rect the tyre pressure if it is still at least
13 0 kPa (1.3 bar). See the tyre pressure
ta ble on the fuel filler flap forva lues. #
Toincrease the ty repressure: switch on
th e tyre inflation compressor. Breakdown assis
tance 309

Note
s on noise or unusual handling charac‐
te rist ics
Make sure there are no vibrations, noises or
unusual handling characteristics when theve hi‐
cle is in motion. This may indicate that the
wheels or tyres are damaged. Hidden tyre dam‐
age could also be causing the unusual handling
ch aracteristics.
If yo u suspect that a tyre is defective, reduce
yo ur speed immediately and ha vethe tyres and
wheels checked at a qualified specialist work‐
shop. Note
s onregular lyinspecting wheels and
tyres &
WARNING Risk of injury duetodamaged
tyres
Damaged tyres can cause tyre pressure loss. #
Check the tyres regularly for signs of
dama geand replace any damaged tyres
immediatel y. &
WARNING Risk of aquaplaning due to
insuf ficient tyre tread
Insu fficient tyre tread will result in reduced
tyre grip.
The risk of aquaplaning is increased on wet
ro ads, especially when the speed of theve hi‐
cle is not adap tedto suit the conditions. #
Thus, you should regularly check the
tread de pth and the condition of the
tyre contact su rface across the entire
width of all tyres.
Minimum tread dep thfor:
R Summer tyres: 3 mm
R M+S tyres: 4 mm #
For saf etyre asons, replace the tyres
before the legally-prescribed limit for
th e minimum tread dep thisreached. Car
ryout thefo llowing checks on all wheels reg‐
ularly, at least once a month or as requ ired, for
ex ample, prior toa long journey or driving off-
ro ad:
R Check the tyre pressure (/ page 322).
R Visually inspect wheels and tyres for dam‐
age.
R Check theva lve caps.
R Visual check of the tyre tread dep thand the
tyre contact su rface across the entire width.
The minimum tread dep thfor summer tyres
is 3 mm and for winter tyres 4 mm. Note
s on snow chains &
WARNING Risk of accident due toincor‐
re ct snow chain fitting
If yo u ha vefitted snow chains tothe front
wheels, the snow chains may drag against
th eve hicle body or chassis components.
This could cause damage totheve hicle or
th e tyres. Wheels and tyres
321

It is only permissible
tofit a di fferent wheel
size in theev ent of a flat tyre in order to
drive tothe specialist workshop.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit.
R Vehicles with a tyre pressure monitoring
sy stem: allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7 °C use winter tyres
or all-season tyres mar ked M+S for all
wheels.
Wi nter tyres bearing thei snowflake
symbol in addition tothe M+S marking pro‐
vide the best possible grip in wintry road
conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres fitted. If
th e tyre's maximum speed is below that of
th eve hicle, this must be indicated byan
appropriate label in the driver's field of
vision.
R Run in new tyres at moderate speeds forthe
fi rs t10 0 km.
R Replace the tyres af ter six years at the latest,
re ga rdless of wear.
R When replacing with tyres that do not
fe ature run-flat characteristics: vehicles
with MOExtended tyres are not equipped
with a TIREFIT kit at thefa ctor y.Equip the
ve hicle with a TIREFIT kit af terre placing with
tyres that do not feature run-flat characteris‐
tics, e.g. winter tyres.
% You can permanently limit the maximum
ve hicle speed for driving with winter tyres
(/ page 141).
Fo r more information on wheels and tyres, con‐
ta ct a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 322)R
Tyre pressure table (/ page 323)
R Notes on the emer gency spa rewheel
(/ page 335) &
WARNING Risk of accident caused by
non-app rove d tyre types
If yo u use tyre types that ha venot been
adap tedto changes made tothefa ctory
speed limit, this can ha vethefo llowing con‐
sequences:
R The tyres are not suitable for high speeds
and the cor responding driving dynamics.
R The tyres wear une venly and af fect the
ro adwor thiness of theve hicle.
R ABS, ESP ®
and cruise contro l operation
are restricted.
This can jeopardise road saf ety. #
Only use tyre types that ha vebeen
appr ovedfo rth e maximum permissible
speed set and theve hicle. 328
Wheels and tyres

Setting subtitles .................................. 285
Setting
the audio language .................. 284
Showing telete xt .................................. 285
Showing/hiding full screen ................. 282
Te lete xt overview ................................. 285
Vo ice commands (LINGU ATRO NIC) ...... 174
TV channel
Ac tivating/deactivating channel fix ..... 283
Channel fix .......................................... 283
Channel li stove rview .......................... 283
EPG (elect ronic programme guide) ...... 283
Overview of favo urites ........................ .283
Quick sa ve........................................... 284
Selecting from thech annel list ............ 282
Selecting from the control menu ......... 282
Selecting from thefa vo urites .............. 282
Selecting in the bac kground ................ 282
St oring ................................................ 284
Ty re inflation compressor
see TIREFIT kit
Ty re pressure ........................................... 323
Checking (ty repressure monitoring
sy stem) ................................................ 324
No tes .................................................. 322 Re
starting the tyre pressure monitor‐
ing sy stem ...........................................3 25
TIREFIT kit .......................................... .306
Ty re pressure monitoring sy stem
(function) ............................................. 324
Ty re pressure table .............................. 323
Ty re pressure moni tor
Fu nction .............................................. 324
Ty re pressure moni toring sy stem
Checking the tyre pressure ................. 324
Re starting ............................................ 325
Ty re pressure table ................................. 323
Ty re temp erature
Ty re pressure monitoring sy stem
(function) ............................................. 324
Ty re tread ................................................. 321
Ty re-change tool kit
Overview ............................................ .329
Ty res
Checking ............................................ .321
Checking the tyre pressure (tyre
pressure monitoring sy stem) ............... 324
Fitting .................................................. 334 Flat tyre ............................................... 304
Inter
changing ...................................... 329
MOExtended tyres .............................. .305
Noise ................................................... 321
No tes ................................................... 11 5
No tes on fitting ................................... 325
Re moving ............................................ 333
Re placing .................................... 325, 330
Re starting the tyre pressure monitor‐
ing sy stem ...........................................3 25
Selection ............................................. 325
Snow chains ........................................ 321
St oring ................................................ 329
TIREFIT kit ...........................................3 06
Ty re pressure (N otes) .......................... 322
Ty re pressure monitoring sy stem
(function) ............................................. 324
Ty re pressure table .............................. 323
Un usual handling characteristics ........ .321 U
Un its of measurement
Setting ................................................ .194
Un locking setting ...................................... 61432
Index

Wa
ter tank
see Air-water duct
We ar
Brake discs .......................................... 11 4
Brake pads .......................................... .114
Wheel bolts .......................................... 11 5
We ather information ............................... 229
What3words Destination entry with a 3 word
address ................................................ 210
Wheel change
Fitting a new wheel ............................ .334
Fitting/removing plast ic hub caps ...... 330
Lo we ring theve hicle ........................... 335
Preparation ......................................... 330
Ra ising theve hicle ...............................3 31
Re moving a wheel .............................. .333
Wheel change
see Emer gency spa rewheel
Wheel rotation ........................................ .329
Wheels Care .................................................... 299
Checking ............................................. 321 Checking
the tyre pressure (tyre
pressure monitoring sy stem) ............... 324
Fitting .................................................. 334
Flat tyre ............................................... 304
Inter changing ...................................... 329
MOExtended tyres .............................. .305
Noise ................................................... 321
No tes ................................................... 11 5
No tes on fitting ................................... 325
Re moving ............................................ 333
Re placing .................................... 325, 330
Re starting the tyre pressure monitor‐
ing sy stem ...........................................3 25
Selection ............................................. 325
Snow chains ........................................ 321
St oring ................................................ 329
TIREFIT kit ...........................................3 06
Ty re pressure (N otes) .......................... 322
Ty re pressure monitoring sy stem
(function) ............................................. 324
Ty re pressure table .............................. 323
Un usual handling characteristics ........ .321
Wi -Fi .......................................................... 191
Overview ..............................................1 91
Setting ................................................. 191Setting up a hotspot ............................
19 3
Setting up an Internet connection ....... 258
Wi ndow airbag ...........................................39
Wi ndo ws
see Side windo ws
Wi ndo ws(care) ........................................ 299
Wi ndscreen
see Windshield
Wi ndscreen washer fluid ........................ 345
No tes .................................................. 345
Wi ndscreen washer sy stem
To pping up ...........................................2 95
Wi ndscreen wipers
Changing the wiper blades .................... 96
Switching on/off ................................... 96
Wi ndshield .................................................96
Changing the wiper blades .................... 96
Wi nter operation
Snow chains ........................................ 321
Wi nter tyres
Setting the permanent speed limit .......1 41 Index
435