2020 MERCEDES-BENZ AMG GT COUPE Owners Manual

Brake sy
stem Note
s onthe brake sy stem
The brake sy stem of your vehicle is designed for
heavy loads. Therefore, there may be noise when
braking. The loads in the entire brake sy stem
which occur when driving on a racetrack are sig‐
nificantly grea terth an those during normal oper‐
ation.
The increased brake forc es and temp eratures
when driving on a racetrack inhe rently lead to
inc reased wear of the brake sy stem.
Check the condition and geometry of the brake
co ver plate before using theve hicle on a race‐
trac k.
Obser vethe information on the cooling of com‐
ponents which are subject tostra in when oper‐
ated on a racetrack (/ page 109).
Braking with ABS
Re peated hard braking within the ABS control
ra nge causes higher temp eratures in the brake
sy stem than controlled braking shortly before
th e ABS control limit. Brakepad
wear
The inner and outer brakepads may also suf fer
"tapered wear". This could lead topoor pedal
fe el. Therefore, you must also check the condi‐
tion of the brakepads before and af ter use on a
ra cetrack as part of astandard check forwe ar.
Brake discs
Obse rveth e information on the cooling of com‐
ponents which are subject tostra in in racetrack
ope ration (/ page 109).
Depending on theve hicle's equipment, the AMG
ceramic high-per form ance composite braking
sy stem is fitted in your vehicle. The assessment
of we ar must therefore be car ried out using a
special measurement procedure. The brakes are
measured using the cur rent condition of the
ceramic composite material as a criteria for
assessing thewe ar ins tead of assessing the
re sidual thickness.
Depending on the type of brake disc, thefo llow‐
ing are combinations used tomeasu rethewe ar
of the brake discs:
R Carbon-ceramic brake disc -
Visual assessment of the brake disc for
mechanical dama ge
- Wear measurement using the indicator
fi eld me thod; alternatively using the Pro‐
ceq Carbo teq®
measu ring device (e.g. in
th e AMG Performance Center or at AMG
Tr ackda ys)
R Grey cast iron brake disc
- Visual check
- Crack test
- Wearthickness test
The ventilation holes on gr eycast iron friction
ri ngs of standard brake discs in particular could
become bloc kedby brake dust. Therefore, check
th eve ntilation holes be fore using theve hicle on
a ra cetrack and clean them if necessar y.If nec‐
essar y,also clean the drilled holes.
Brake fluid
Che ckthefo llowing properties of the brake fluid
before each use on a racetrack:
R Boiling point
R Fill le vel 11 0
Driving and pa rking

When driving on a
racetrac k,make sure that the
brake fluid is not more than 12 months old.
Brake callipers, brake hoses and brake lines
Check thefo llowing for dama geeach time
before driving theve hicle on a racetrack:
R The du stboots on the brake callipers
R The brake hoses and brake lines
Re place them if necessar y.
Brake cooling
Special air deflectors and channels are fitted to
th e front and rear axles so that the brakes are
cooled suf ficiently. They supply the brake disks
with cooling air. Check that they are in per fect
condition and cor rectly fitted ea chtime be fore
driving theve hicle on a racetrac k.Excessi ve
we ar can be caused bydriving overke rbs, for
ins tance. Forth is reason, regularly check they
are all comple teand fitted securely.
In addition, check that the air guide plates are
seated securely and clean before and af ter driv‐
ing theve hicle on a racetrac k. Obser
vethe information on the cooling of com‐
ponents which are subject tostra in in when driv‐
ing on a racetrack (/ page 109). Wheels an
d tyres Note
s on wheels
* NO
TERestrictions relating tosuspension
settings and driving characteristics Driving with wheels with dif
fering dimensions
of thefo llowing features could lead torestric‐
tions relating tothe suspension settings and
driving characteristics of theve hicle:
R diame ter
R wheel of fset #
Only use the wheels pr ovided by
Mercedes-AMG for use on a racetrac k. #
Only use wheels with appr ovedge ome‐
tr y. Do not use slick tyres. Suspension and body
components may
otherwise be subjected to
exc essively high loads. Obser
vethefo llowing no tes on changing a
wheel:
R change the wheels af ter15 ,000 km on a
ra cetrack at the latest.
R toensure concent ricity and la tera l trueness,
ch eck the wheel conta ct surfacefor dama ge
when changing a wheel. These should also
be measured in theeve nt of imbalance.
The wheel bolts are subjected tohigh wear when
used on a racetrac k.To ensure the wheels are
bolted securely on a permanent basis, replace
th e wheel bolts in thefo llowing situations:
R afte r appro ximately 1,000 km on a racetrac k.
R afte rte n bolting procedu res at the latest.
Note s on 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. Driving and pa
rking 111

Check
the tyres for dama geand the cor rect tyre
tread dep thboth before and af ter use on a race‐
trac k.Only then is it safe todrive on a racetrack
and on public roads.
As a result of the driving style and at high ambi‐
ent temp eratures, when driving on a racetrack it
may be necessary tocompensate forthe
inc rease in pressure in warm tyres byreleasing
air. Even forwa rm tyres, the specified tyre pres‐
sure may only be exceeded bymax. 0.5 bar.
Af terth e tyres ha vecooled down again, you
must readjust the tyre pressure in accordance
with the specifications in order todrive on public
ro ads. Suspension
Suspension settings
The
factory setting pr ovides a good compromise
fo r driving on public roads and on a racetrac k.
Ve hicle measurements
Even small changes tothe suspension settings
alter the driving characteristics of theve hicle. To
ensure optimal driving characteristics, the speci‐ fi
ed values and tolerances of the individual sus‐
pension settings must be complied with. The
driving characteristics of theve hicle may other‐
wise be undesirable.
Ve hicle measurements are requ ired in thefo llow‐
ing situations:
R theve hicle height has changed in relation to
th e optimised setting.
R theve hicle is frequently subjected tovery
high loads, e.g. when driving over kerbs.
Therefore, check theve hicle height at regular
inter vals and, if necessar y,per form vehicle
measurements.
Note s on suspension components
Despite regular checks, and rega rdless of
whe ther there leva nt suspension components
are in good condition, thefo llowing components
must be replaced af ter a cer tain amount of use
on thera cetrack:
R Wheel bolts (/ page 111 )
R Wheel hubs including the wheel bearings Note
s on engine oil Check
the engine oil le vel before operating in
ra cetrack mode. DY
NA MIC SELECT switch Fu
nction of theDY NA MIC SELECT switch Use
theDY NA MIC SELECT switch tochange
between thefo llowing drive programs:
R o (Slippery): optimised pulling away and
driving characteristics in wint ryand slippe ry
ro ad conditions
R = (Individual): individual settings
R A (Comfort): comfortable and economi‐
cal driving style
R C (Sport): sporty driving style
R B (Sport Plus): particularly sporty driving
st yle
R I (RACE): driving like on a race track
The I (RACE) drive program may not be
used on normal roads. I (RACE) must on ly 11 2
Driving and pa rking

be activated and used on dedicated
race cir‐
cuits, not on public roads.
Mercedes-AMG recommends selecting the drive
program Awhen in city tra ffic or stop-and-go
traf fic.
Depending on the drive prog ram selected, the
fo llowing vehicle characteristics will change:
R drive
- engine and transmission management
- Active Dis tance Assi stDISTRONIC
R AMG Dynamics
- thefo ur agility functions Basic, Advanced,
Pro and Ma ster are automatically selec‐
te d depending on the drive prog ram.
- thesteering, shift timing point and stabili‐
sation functions are adap tedto the selec‐
te d drive prog ram.
- when ESP ®
is activated, agility function
Pro is selected in drive program I
RACE. The Mas ter function is auto mati‐
cally selected when ESP ®
is deactivated.
R position of theex haust gasflaps R
Suspension
R steering
R availability of Glide mode
R The I(R ACE)drive program has thefo l‐
lowing properties:
- theve hicle exhibits driving characteristics
suited forth era cetrac k.
- allvehicle sy stems are set for maximum
sportiness.
- the automatic transmission shifts up
later.
- the suspension exhibits particular lyfirm
springing and damping settings.
- glide mode is not available.
- the sporty sound characteristic of the
ex haust sy stem is activated.
% You can call up vehicle characteristics via
th ePe rformance menu in the on-board com‐
puter .
% You can adjust the agility functions of AMG
Dynamics using the AMG steering-wheel but‐
to ns. Yo
u can also change thefo llowing vehicle char‐
acteristics using the buttons in the cent recon‐
sole:
R position of theex haust gasflaps
R Suspension Selecting
the drive prog ram Driving and pa
rking 11 3

#
Press DYNA MIC SELECT switch 1forw ards
or backwards.
The selec ted drive program appears in the
display 2and in the multifunction display in
th e instrument clus ter. Configuring drive prog
ram I Multimedia sy
stem:
4 Vehicle 5
e DYNAMIC SELECT
5 Individual #
Select the individual setting. Switching
the operation feedba ckfor drive
prog rammes on or off Multimedia sy
stem:
4 Vehicle 5
e DYNAMIC SELECT #
Activate Oor deacti vate ª User notifica-
tion.
When this function is active, a cor responding
message is shown in the media display when
a drive prog ramme is selected with the
DY NA MIC SELECT switch. Displaying
vehicle data Multimedia sy
stem:
4 Vehicle 5
e DYNAMIC SELECT #
Select Vehicle data.
The vehicle data is displa yed. Displaying engine data
Multimedia sy
stem:
4 Vehicle 5
e DYNAMIC SELECT #
Select Engine data.
% The actual (maximum) values that can be
achie vedfo r engine output and engine tor‐
qu e may deviate from the certified values
within the count ry-specific guidelines for
permissible tolerances (basis: UN-ECE No.
85 or country -specific guidelines).
Fa ctors that can influence this are, forex am‐
ple:
R Sea le vel
R Fuel grade
R Outside temp erature R
Operating temp erature of the engine
% The values displa yed ser veonly as orienta‐
tion. The values for engine output and
engine torque sh own in the media display
may deviate from the actual values. Au
tomatic transmission E-SELECT selector le
ver Fu
nction of the E-SELECT selector le ver &
WARNING Risk of accident due toincor‐
re ct gearshifting
If th e engine speed is higher than the idle
speed and you en gage the transmission posi‐
tion hork, theve hicle may accelerate
sharply. #
Ifyo u en gage the transmission position
h ork when theve hicle is at a
st andstill, alw ays depress the brake
pedal firm lyand do not accelerate at
th e same time. 11 4
Driving and pa rking

&
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unsupervised in theve hi‐
cle, they could, in part icular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R releasing the parking brake.
R change the transmission position.
R start theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theke y out of reach of children. This also applies
tothe Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
Use the E-SELECT selector le verto change the
transmission position. The cur rent transmission
position is displ ayed in the multifunction displa y. j
Park position
k Reversege ar
i Neut ral
h Drive position En
gaging reve rsege ar R #
Depress the brake pedal and push the E-
SELECT selector le ver upwards past thefirst
point of resis tance.
En gaging neutral N #
Depress the brake pedal and push the E-
SELECT selector le ver up or down tothefirst
point of resis tance.
Subsequently releasing the brake pedal will
allow youto mo vetheve hicle freel y,e.g. topush
it or tow it away.
If yo uwa ntthe automatic transmission to
re main in neutral i ieven if the ignition is
switched off: #
start theve hicle. #
depress the brake pedal and engage neutral
i. #
release the brake pedal. #
switch the ignition off.
% Ifyo uth en exitth eve hicle leaving theke y in
th eve hicle, the automatic transmission
re mains in neutral i. Driving and parking
11 5

Engaging pa
rkposition P #
Obser vethe no tes on parking theve hicle
(/ page 121). #
Depress the brake pedal until theve hicle is
st ationar y. #
When theve hicle is stationar y,press button
j.
Pa rk position is only engaged when the
transmission position display jis shown in
th e multifunction displa y.If no transmission
position display jappears, secure theve hi‐
cle topreve nt it from rolling away.
Pa rk position jis engaged automatically if one
of thefo llowing conditions is me t:
R you swit choff the ignition when theve hicle
is stationary and the transmission is in posi‐
tion hork.
R you open the driver's door when theve hicle
is stationary or when driving at a very low
speed and the transmission is in position h
or k.
% Tomanoeuvre with an open driver's door,
open the driver's door while stationary and engage transmission position
hork
again.
Engaging drive position D #
Depress the brake pedal and pull the E-
SELECT selector le ver back past thefirst
point of resis tance.
When the automatic transmission is in transmis‐
sion position h, it shiftsthege ars automati‐
call y.This depends on thefo llowing factors:
R the selected drive prog ram
R the position of the accelera tor pedal
R the driving speed Note
s onthe double-clutch function The double-clut
chfunction is active when chang‐
ing down in all drive programs. The double-
clut chfunction reduces load change reactions
and suppo rts sporty driving. The acoustic per‐
ception of the double-clutch function changes
depending on the drive prog ram. Ro
cking theve hicle free Ro
cking theve hicle free can help tofree a vehi‐
cle that has become trapped in slush or sn ow.
To rock theve hicle free, mo vethe E-SELECT
selector le ver upwards and down wards past the
point of resis tance in order toswitch between
transmission positions hand k(/ page114).
% The maximum design speed when switching
between hand kis 9 km/h. 11 6
Driving and pa rking

Manual
gearshifting #
Toactivate/deacti vate: press display but‐
to n1.
The displ aybutton displa ys the cur rently
selected gear setting 2:
R M(red): manual gearshifting
R D(blue): automatic transmission %
Topermanently shift thege ars manually in
drive prog ram = using thesteering wheel
ge arshift paddles, select theM (Manual) set‐
ting forth e transmission.
* NO
TEDama getothe engine due toshift‐
ing up too late The automatic transmission does not shift up
in manual mode
even when the engine's lim‐
iting speed is reached.
The fuel supply is inter rupte d in order topre‐
ve nt the engine from overrev ving. #
Shift up before the engine speed rea‐
ch es there d area in there v counter. #
Toshift up: pullsteering wheel gearshift
paddle 2. #
Toshift down: pullsteering wheel gearshift
paddle 1. If
th e engine speed is too high or too lo w,you
cannot change gear using thesteering wheel
ge arshift paddles. In this case, segments 1
light up red. Gearshift
recommendation The
gearshift recommendation assists you in
adopting an economical driving style. Driving and parking
117