2020 MERCEDES-BENZ AMG GT ROADSTER Owners Manual

Ac
tive Di stance Assist DISTRO NIC displaysin
th e instrument clus terAssi
stance graphic
1 Vehicle in front
2 Distance indica tor
3 Set specified di stance
Pe rm anent status display of Active Di stance
Assist DIST RONIC
R k (white):Ac tive Dis tance Assi st
DISTRONIC selected, speci fied dis tance set
R k (green): Active Dis tance Assi st
DISTRONIC acti ve, specified dis tance set and
ve hicle de tected The
stored speed is shown along with the per‐
manent status display and highlighted on the
speedome ter.When Active Dis tance Assi st
DISTRONIC is passi ve,th e speed is gr eyed out.
% On mo torw ays or high-speed major roads,
th e green çvehicle symbol is displa yed
cyclically when theve hicle is ready topull
aw ay.
% Ifyo u depress the accelerator pedal be yond
th e setting of theAc tive Dis tance Assi st
DISTRONIC, the sy stem is switched topas‐
sive mode. The çsuspended message
appears in the multifunction displa y.
Display on the speedome ter
The stored speed is highlighted on the speedom‐
et er. If the speed of theve hicle in front is less
th an thestored speed, the segments in the
speedome ter light up. The deactivation of Active
Dis tance Assi stDISTRONIC, as well as altera‐
tions tothestored speed and the dis tance tobe
maintained, are displa yed in the control feed‐
back of the multifunction display on a single line. Sy
stem limits
The sy stem may be impaired or may not function
in thefo llowing situations, forex ample:
R In sn ow,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R The windsc reen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
R In multi- stor ey car pa rks or on roads with
st eep uphill or downhill gradients.
R Ifth ere are nar rowvehicles in front, such as
bicycles or mo torcyc les.
In addition, on slippery roads, braking or accel‐
erating can cause one or se veral wheels tolose
traction and theve hicle could then skid.
Do not use Active Dis tance Assi stDISTRONIC in
th ese situations. 14 2
Driving and pa rking

&
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50% of the possible
deceleration. If this decele ration is not su ffi‐
cient, Active Dis tance Assi stDISTRONIC
alerts you with a visual and acoustic warning. #
Adjust your speed and main tain a suita‐
ble dis tance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes R
topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocompl extraf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi st
DISTRONIC may nei ther give warnings nor
inter vene in su chsituations. #
Alw ays obser vethe tra ffic conditions
carefully and react accordin gly. Operating
Active Di stance Assist DIST RONIC
Re quirements:
R The elect ric pa rking brake is released.
R ESP ®
is activated and is not inter vening.
R The transmission is in position h.
R The driver's door is closed.
R Check of thera dar sensor sy stem has been
successfully comple ted.
R Parking Assist PARKTRONIC is not being
used topark theve hicle or toexit from a
parking space. Driving and parking
14 3

#
Tooperate Active Di stance Assist
DISTRO NIC:press thero ck er switch on the
st eering wheel control unit up or down tothe
desired position.
Switching between Active Di stance Assist
DISTRO NIC and the limiter #
Press theI button. Ac
tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC #
Toactivate with out astored speed: press
rock er switch 1upM or down N, or
select Jwiththe left rocker switch.
or #
Toactivate with ast ored speed: select
J withthe left rocker switch. #
Active Di stance Assist DISTRO NIC:remo ve
yo ur foot from the accelerator pedal.
The cur rent vehicle speed is stored and
maintained (Active Dis tance Assi st
DISTRONIC) or limited (variable limiter) by
th eve hicle.
Pulling away with Active Di stance Assist
DISTRO NIC #
Activate Active Dis tance Assi stDISTRONIC
and remo veyour foot from the brake pedal. #
Select Jwiththe left rock er switch.
or #
Depress the accelerator pedal briefly and
fi rm ly.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Deactivating Active Di stance Assist
DISTRO NIC &
WARNING Risk of accident due toActive
Dis tance Assi stDISTRONIC still being
activated when you lea vethe driver's
seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assi st
DISTRONIC only, theve hicle can rollaw ay. #
Alw ays deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat. #
Select Owiththe left rock er switch.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated.
Increasing/decreasing thesto red speed 14 4
Driving and pa rking

#
1 km/h: press rocker switch 1upM or
down Ntothe pressure point, or press
and hold (increments of 1 km/h).
or #
10km/h: press rock er switch 1upM or
down Nbeyond the pressure point, or
press and hold (increments of 10km/h).
or #
Accelerate theve hicle tothe desired speed
and press rocker switch 1upM.
Changing the specified distance totheve hi‐
cle in front #
Toreduce the speci fied distance: press
th eright rock er switch up (Ñ). #
Toincrease the specified distance: press
th eright rock er switch down (Ò). Fu
nction of Hill Start Assist Hill
Start Assist holds theve hicle for a short
time when pulling away on a hill under thefo l‐
lowing conditions:
R The transmission is in position hork. R
The elect ric pa rking brake is released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelera tor pedal
and depress it before theve hicle begins toroll
aw ay. &
WARNING Risk of accident and inju ry
due totheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle. #
Swiftly mo veyour foot from the brake
pedal tothe accelera tor pedal. Do not
lea vetheve hicle when it is being held
by Hill Start Assist. HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. while waiting in traf fic.
The HOLD function is only an aid. The responsi‐
bility forth eve hicle safely standing still remains
with the driver. Sy
stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline must not be greater than 30%.
Ac tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If th eve hicle is only braked with the HOLD
function it could, in thefo llowing situations,
ro llaw ay:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or brake
pedal, e.g. byave hicle occupant. #
Alw ays secure theve hicle against roll‐
ing away before you lea veit. Re
quirements: Driving and parking
14 5

R
The vehicle is stationar y.
R The driver's door is closed or the seat belt on
th e driver's side is fastened.
R The engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
R The electric parking brake is released.
R Active Dis tance Assi stDISTRONIC is deacti‐
va ted.
R The transmission is in position h,kori.
Ac tivating the HOLD function #
Dep ress the brake pedal, and af ter a short
time quickly depress fur ther until theë
display appears in the multifunction displa y.#
Release the brake pedal.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y. The HOLD function is deactivated in
thefo llow‐
ing situations:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
R The transmission is shif tedto position j.
R The vehicle is secured with the electric park‐
ing brake.
In thefo llowing situations, theve hicle is held by
transmission position jand/or bythe electric
parking brake:
R The seat belt is unfas tened and the driver's
door is opened.
R The vehicle is switched off.
R There is a malfunction in the sy stem or the
po we r supp lyis insuf ficient. RACE
START Fu
nction of RACE START
RACE START enables optimal vehicle accelera‐
tion from a standstill. Forth is, a suitably high-
gr ip road sur face is required, the tyres and vehi‐
cle must also be in good condition. %
RACE START is only available af terth eve hi‐
cle has been run in (/ page 107 ).
% RACE START may not be used on normal
ro ads. RACE START mu stonly be activated
and used on dedicated race circuits, not on
public roads.
Be sure toread the saf ety no tes and infor‐
mation on ESP ®
(/ page 133). &
WARNING Risk of skidding and having
an accident from wheels spinning
If yo u use RACE STAR T,depending on the
ESP ®
mode selected, there is an increased
ri sk of skidding and having an accident. #
Make sure that no persons or obs tacles
are in the close vicinity of your vehicle. Ac
tivating RACE START
Re quirements:
R the driver's door is closed.
R the engine is running and the transmission
and engine are at normal operating temp era‐
ture. 14 6
Driving and pa rking

R
the front wheel is in thest ra ight-ahead posi‐
tion.
R theve hicle is on le velground.
R theve hicle is stationar y,the brake pedal is
depressed (left foot ) and the parking brake is
re leased.
R the transmission is in position h.
R one of the drive programs C,Bor
I is selected (/ page117). #
Rapidly depress the accelerator pedal full y.
The engine speed increases.
% Ifth e activation conditions are not fulfilled,
RACE START cannot be acti vated. The RACE
START not possible See Owner's Manual
message appears in the multifunction dis‐
pla y. #
The RACE START Release brake to start mes‐
sage appears in the multifunction displa y.
% Inthis phase you can adjust RACE START
depending on thero ad conditions: you can
va ry the engine speed bypulling on one of
th esteering wheel gearshift paddles. The segments in
the multifunction display flic ker
ra pidly.
% Ifth e brake pedal is not released af ter a
short while, RACE START is cancelled. The
RACE START cancelled messageappears in
th e multifunction displa y. #
Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accelera‐
tion. The RACE START active message
appears in the multifunction displa y.
RACE START is deacti vated immediately if you
re lease the accelerator pedal during RACE
ST ART or if any of the activation conditions are
no longer fulfilled. The RACE START cancelled
message appears in the multifunction displa y.
% After using it se veral times in short succes‐
sion, RACE START is una vailable until a cer‐
ta in dis tance has been driven. Fu
nction of the AMG steering-wheel but tons The AMG
steering-wheel buttons are two addi‐
tional control elements on thesteering wheel.
Yo u can assign two vehicle functions of your
ch oice tothe left control element. You can
ch ange between theav ailable functions by
pressing the display buttons 2repeatedl y.The
cur rently selected functions are displ ayed in the
display buttons 2.
The following functions are available:
R ESP ®
(/ page 133)
R AMG RIDE CONTROL(/ page149) Driving and pa
rking 147

R
AMG Performance exhaust sy stem
(/ page 113)
R ECO start/ stop function (/ page112)
R manual gearshifting (/ page122)
R AMG Dynamics(/ page 117)
R rear wing(/ page148)
R fron t and reve rsing camera (/ page152)
If yo u ha veassigned a function toone of the dis‐
play buttons 2,you can operate this function
with the cor responding button 1.
The assignment of the display button 2
re mains stored even af ter a new engine start,
but the operating status of there spective func‐
tion is reset tothe basic setting.
Yo u can change between the drive prog rams
with thest abiliser bar actuator 3. The selected
drive program appears in the display button 4.
By pressing the display button 4,you can
direct lyaccess the drive prog ram = (Individ‐
ual) (/page 117). Re
ar wing Fu
nction of there ar wing
The rear wing impr ovesth eve hicle's driving sta‐
bility and automatically retracts and extends
while theve hicle is in motion.
Depending on which drive program has been
selected, there ar wing automatically extends at
a speed grea terth an 70 km/h.
Depending on the drive prog ram, there ar wing
automatically retracts below a speed of appr ox‐
imately 80 km/h.
Yo u can retract and extend there ar wing man‐
ually for cleaning (/ page148).
Extending and retracting the rear wing for
cleaning &
WARNING Risk of becoming trapped
when youex tend and retract there ar
wing manually
Pa rts of the body could become trapped. #
Ensure that there is no one in the
sweep of there ar wing when you
ex tend there ar wing. #
If someone does become trapped when
there ar wing is extended, press the dis‐
play switch again immediatel y. *
NO
TEDama getothere ar wing when
wa shing theve hicle in a car wash If
th ere ar wing is extended, it may be dam‐
aged when theve hicle is washed in a car
wa sh. #
Only extend there ar wing if washing the
car byhand. #
Before entering a car wash, ensure that
th ere ar wing is retracted. Re
quirements:
R The ignition is switched on.
R The boot lid is closed. 14 8
Driving and pa rking

#
Toextend: press the display button 1. #
Toretract: press and hold the display button
1.
The rear wing extends or retracts.
The display button symbol 2and its colour
indica tethefo llowing positions of there ar
wing:
R Rear wing retracted (blue) R
Rear wing extended (red)
R Rear wing extending or retracting (yellow)
The di fferent positions of there ar wing are also
shown on the instrument clus ter. AMG RIDE CONTROL
Fu
nction of AMG RIDE CONTROL
AMG RIDE CONTROL is an electronically control‐
led damping sy stem for impr oved driving com‐
fo rt and inc reased driving saf ety.
The damping is adjus ted individually toeach
wheel and depends on thefo llowing factors:
R driving style, e.g. sporty
R road condition, e.g. bumps
R drive prog ram selected
R selected suspension setting SPORT,SPORT
+ or COMFORT
% When theve hicle is star ted again, theCOM‐
FO RT setting is activated automatically. Selecting
the suspension setting
Yo u can select from thre e dif fere nt suspension
settings:
R COMFORT ensures a comfor table suspen‐
sion setting. Select this suspension setting if
yo u prefer a comfor table driving style.
R SPORT ensures a firm er suspension setting.
Select this suspension setting when employ‐
ing a sporty driving style, e.g. on winding
count ryroads.
R SPORT PLUS ensures avery firm suspension
setting. Driving and parking
14 9