MERCEDES-BENZ AMG GT COUPE 2018 Owners Manual

#
Avoid obs tacles or drive pa rticular ly
carefully. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C, use M+S
tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
The special tyre tread in combination with
th e optimised tyre compound, means that
th erisk of skidding or hydroplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use M+S tyres at outside temp eratures
of less than 50 °F. Obse
rveth efo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
Fu rthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make.
R Only fit wheels of the same size on one axle
(left and right).
It is only permissible tofit a di fferent wheel
size in theeve nt of a flat tyre in order to
drive tothe specialist workshop.
R Only fit tyres of the cor rect size onto the
wheels.
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. 348
Wheels and tyres

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 is is below theve hicle's maximum speed,
th is 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 339)
R Tyre pressure table (/ page 340) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions
may se verely impair the driving characteris‐
tics.
The disk brakes or wheel suspension compo‐
nents may also be damaged. #
Rotate front and rear wheels on lyifthe
wheels and tyres are of the same
dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nder thege neral operating pe rmit in valid.
The wear pat tern s on the front and rear wheels
dif fer:
R Front wheels wear more on the shoulder of
th e tyre
R Rear wheels wear more in the cent reofthe
tyre Wheels and tyres
349

On
vehicles with the same front and rear wheel
size, you can inter change the wheels every
5,000 to10,000 km, depending on thewe ar.
Ensure the direction of rotation is maintained for
th e wheels.
It is imperative toobser vethe instructions and
saf ety no tes on "Changing a wheel" when doing
so Preparing theve hicle for a wheel
ch ange(/ page 350). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from conta ct withoil,
grease or fuel. Overview of
the ty re-change tool kit Apart from some countr
y-specific variants, vehi‐
cles are not equipped with a tyre-change tool kit.
Fo r more information on which tyre-changing
to ol kits are requ ired and appr ovedfo r per form‐ ing a wheel
change on your vehicle, consult a
qu alified specialist workshop.
Re quired tyre-change tools may include, for
ex ample:
R jack
R chock
R wheel wrench
R centri ng pin
% The jack weighs appr oximately 3.4 kg.
The maximum load capacity of the jack can
be found on thest icke r af fixe dto the jac k.
The jack is maintenance-free. If there is a
malfunction, please conta ct aqualified spe‐
cialist workshop. Setting up
thefo lding chock Prepa
ring theve hicle for a wheel change Re
quirements:
R The requ ired tyre-change tool kit is available.
If yo ur vehicle is not equipped with the tyre-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools. 350
Wheels and tyres

R
The vehicle is not on a slope.
R The vehicle is on solid, non-slippery and le vel
ground. #
Apply the electric parking brake manually. #
Movethe front wheels tothest ra ight-ahead
position. #
Shift the transmission toposition j. #
Switch off the engine. #
Make sure that the engine cann otbe star ted. #
Place choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel you wish tochange. #
Remo vethe hub caps if necessary . #
Raise theve hicle (/ page 351). Fi
tting/ removing pla stic hub caps Re
moving #
Remo vesoc ket2 and wheel wrench 3
from theve hicle tool kit (/ page 350). #
Position soc ket2 on hub cap 1. #
Position wheel spanner 3on soc ket2. #
Using wheel spanner 3, turn hub cap1
anti-clo ckwise and remo veit.
Fi tting #
Before fitting, check hub cap 1and the
wheel area for dirt, and clean if necessar y. #
Position hub cap 1and turn until it is in the
ri ght position. #
Position soc ket2 on hub cap 1. #
Position wheel wrench 3on soc ket2 and
tighten hub cap 1.
Speci fied tigh tening torq ue: 25 Nm. Ra
ising theve hicle when changing a wheel Re
quirements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (/ page 350).
Important no tes on using the jack:
R Only use theve hicle-specific jack that has
been tested and appr oved byMercedes-Benz
to raise theve hicle.
R The jack is only designed forra ising and
holding theve hicle for a short time while a
wheel is being changed and not for mainte‐
nance workunder theve hicle. Wheels and tyres
351

R
The jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
fl at, load-bearing, non-slip unde rlay.
R The foot ofthe jack must be positioned verti‐
cally under the jack support point. Ru
les of conduct when theve hicle is raised:
R Never place your hands or feet under the
ve hicle.
R Never lie under theve hicle.
R Do not start the engine and do not release
th e electric parking brake.
R Do not open or close any doors or theta il‐
gate. #
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe bolts
comple tely. The jack support point is in
the cent rebetween
th e front and rear wheel ar ches (ar row). Before positioning
the jac k,you must remo ve
th e co verfo rth e jack support point. #
Toremo ve:pull the co ver down until the lugs
are released from the holder. #
Foldthe co veraw ay in a forw ard direction. #
Tofit: fold the co verto wa rdsth e body. #
Pull the co ver down and push it in until the
lugs engage. 352
Wheels and tyres

&
WARNING Risk of inju ryfrom incor rect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised. #
Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned
ve rtically under the jacking point of the
ve hicle. *
NO
TEVehicle damage from the jack If
yo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised. #
The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points. #
Take thera tchet out of the tyre-change tool
kit and place it on the he xagon nut of the
jack so that the letters "AUF" are visible. #
Position jack 2at jack support point 1. #
Turn crank 3clockwise until jack 2sits
compl etely on jack support point 1and the
base of the jack lies evenly on the ground. #
Turn crank 3until the tyre is raised a maxi‐
mum of 3 cm from the ground. #
Loosen and remo vethe wheel (/ page 353). Re
moving a wheel Re
quirements:
R The vehicle is raised (/ page 351).
Ve hicles with AMG cera mic high-perform‐
ance composite braking sy stem:
* NO
TEDama getothe ceramic-brake disc
when changing a wheel Mercedes
-AMG vehicles with cera mic-
brake discs: during remo val and reposition‐
ing of the wheel, the wheel rim can strike the
ceramic-brake disk and damage it. #
Take particular care. #
Ask ano ther person for assi stance or
use a second centring pin. When
changing a wheel, avoid applying any force
to the brake discs, since this could impair the
le ve l of com fort when braking. Wheels and tyres
353

*
NO
TEDama getothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on
a dirty sur face. #
Unscr ew the uppermost wheel bolt com‐
ple tely. #
Screw centring pin 1into theth re ad
ins tead of the wheel bolt. #
Unscr ew there maining wheel bolts fully. #
Remo vethe wheel. #
Fitthe new wheel (/ page 354). Fi
tting a new wheel Re
quirements:
R The wheel is remo ved (/ page 353). &
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing. #
Never oil or grease theth re ads. #
Intheeve nt of dama getotheth re ads,
con tact a qualified specialist workshop
immediatel y. #
Have the damaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do not continue driving. #
Obser vethe information on thech oice of
tyres (/ page 346). Fo
r tyres with a specified direction of rotation,
an ar row on the side wall of the tyre indicates
th e cor rect di rection of rotation. Obse rvethe
direction of rotation when fitting. #
Slide the wheel tobe mounted onto the cen‐
tring pin and push it on. &
WARNING Risk of inju ryfrom tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip. #
Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground. #
Be sure toobser vethe instructions and
saf ety no tes on "Changing a wheel"
(/ page 346). #
For saf etyre asons, on lyuse wheel bolts
which ha vebeen appr ovedby Mercedes-
Benz and forth e wheel in question. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated until they are
fi nger-tight. 354
Wheels and tyres

#
Unscr ew the cent ring pin. #
Tighten the last wheel bolt until it is finger-
tight. #
Ifth e collapsible emer gency spa rewheel has
been fitted, infla tethe collapsible emer gency
spa rewheel (/ page 357). #
Lowe rth eve hicle (/ page 355). Lo
weri ngtheve hicle af ter a wheel change Re
quirements:
R The new wheel has been fitted
(/ page 354).
* NO
TEDama getothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the emer gency collapsible spa re
wheel can damage its rim. #
Inflate the emer gency collapsible spa re
wheel using the tyre inflation compres‐
sor before lo wering theve hicle. #
Tolowe r the vehicle: turnthe crank of the
jack anti-clo ckwise until theve hicle is once
again standing firm lyon the ground. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5 ).
Specified tightening torq ue: 180 Nm. &
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. #
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist
wo rkshop and ha vethe tightening tor‐
qu ech ecked immediately. #
Check the tyre pressure of the newly moun‐
te d wheel and adjust according ly. #
Vehicles with a tyre pressure monitoring
sy stem: restart the tyre pressure monitoring
sy stem (/ page 342).
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tyre pressure (/ page 339) Wheels and tyres
355

Collapsible spa
rewheel Note
s onthe collapsible spa rewheel &
WARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of
th e emer gency spa rewheel or spare wheel
and the wheel tobe replaced may dif fer.
Mounting an emer gency spa rewheel/spare
wheel may se verely impair the driving char‐
acteristics.
To preve nt hazardous situations: #
Adapt your driving style according lyand
drive carefull y. #
Neverfit more than one emer gency
spa rewheel or spare wheel that dif fers
in size. #
Only use an emer gency spa rewheel or
spare wheel of a dif fere nt size brie fly. #
Do not switch off ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a dif fere nt size replaced
at the nearest qualified specialist work‐ shop. The new wheel must ha
vethe
cor rect dimensions. The collapsible spa
rewheel is only available in
cer tain countries.
The collapsible spare wheel is an emer gency
wheel which is only suitable for use for a limi ted
period of time and in a restricted manner in the
eve nt of a flat tyre (e.g. until the nearest work‐
shop).
The tyre side walls are folded when in transpo rt
mode. Before use, the collapsible spare wheel
has tobe inflated with the accompanying com‐
pressor.
Check the tyre pressure of the collapsible spare
wheel once fitted. Co rrect the pressure as nec‐
essar y.
The maximum permissible speed with a collapsi‐
ble spare wheel fitted is 80 km/h.
Do not fit snow chains with the collapsible spare
wheel.
Re place the collapsible spare wheel af ter six
ye ars at the latest, rega rdless of wear. %
Ve
hicles with a tyre pressure monitoring
sy stem: if a collapsible spare wheel is fitted
th e tyre pressure monitoring sy stem cann ot
function reliably. Only restart the sy stem
again when the collapsible spare wheel has
been replaced with a new wheel.
Ve hicles with a tyre pressure monitoring
sy stem: for a few minutes af ter a collapsible
spare wheel is fitted, the sy stem may still
display the tyre pressure of there mo ved
wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 339)
R Tyre pressure table (/ page 340) Re
moving the collapsible spare wheel The collapsible spare wheel is secured in
the col‐
lapsible spare wheel bag in the load compart‐
ment. #
Obser vethe information on mounting tyres
(/ page 346). #
Open the load compartment. 356
Wheels and tyres

#
Detach thefast ening stra ps. #
Unhook there taining spring hooks of thefa s‐
te ning stra ps from the brac kets. #
Remo vethe collapsible spare wheel bag
to ge ther with the collapsible spare wheel. #
Open the collapsible spare wheel bag and
re mo vethe collapsible spare wheel. Inflating
the collapsible spa rewheel Re
quirements:
R Mount the collapsible spare wheel as descri‐
bed. (/ page 354)
R Remo vethe tyre inflation compressor from
th estow age space under the load compart‐
ment floor. (/ page 321)
* NO
TEDama getothe collapsible spare
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously
inflating the collapsible spare wheel can
damage its rim. #
Inflate the collapsible spare wheel using
th e tyre inflation compressor before
lo we ring theve hicle. *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. #
Pull connec tor4 and the hose out of the
housing. #
Unscr ew the cap from theva lve on the col‐
lapsible spare wheel. #
Screw union nut 1ofthe hose onto the
va lve.
Make sure on and off switch 3ofthe tyre
inflation compressor is set to0. #
Insert plug 4into the cigar ette lighter
soc ket (/ page 90) in your vehicle. #
Switch on the po wer supp ly . #
Press on and off switch 3onthe tyre infla‐
tion compressor toI.
The tyre inflation compressor is switched on.
The tyre is inflated. The tyre pressure is
shown on manome ter2. #
Pump the tyre tothe specified tyre pressure.
The specified tyre pressure is printed on the
ye llow label of the collapsible spare wheel. #
When the specified tyre pressure has been
re ached, press on and off swit ch3 onthe
tyre inflation compressor to0. #
Ifth e tyre pressure is higher than the speci‐
fi ed pressure, press pressure release valve Wheels and tyres
357