MERCEDES-BENZ AMG GT R-ROADSTER 2018 Owners Manual

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 maximum
possible deceleration. If this decele ration is
not su fficient, Active Dis tance Assi st
DISTRONIC alerts you with a visual and
acoustic warning. #
Inthese cases, adjust your speed and
ke ep a suf ficient di stance. #
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 vehicle has been star ted.
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 All doors and the bonn etare 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.
R The vehicle does not skid. 14 8
Driving and pa rking

Switching between
Active Di stance Assist
DISTRO NIC and the limiter #
Press button 1.
Ac tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC #
Toactivate with out astored speed: press
rock er switch 3up (SET+) or down (SET-),
or press rocker switch 4up. Remo veyour fo
ot from the accelerator pedal (Active Dis‐
ta nce Assi stDISTRONIC).
The cur rent driven speed is stored and main‐
ta ined (Active Dis tance Assi stDISTRONIC) or
limited (variable limiter) bytheve hicle.
or #
Toactivate with ast ored speed: press
rock er switch 4up. Remo veyour foot from
th e accelerator pedal (Active Dis tance Assi st
DISTRONIC).
% Ifrock er switch 4is pressed up again af ter
activation with a stored speed, Active Dis‐
ta nce Assi stDISTRONIC or theva riable lim‐
iter is activated with the speed restriction
displ ayed in the instrument clus ter.
Ac cepting the displa yed speed restriction
when Distance Assist DISTRONIC or the lim‐
iter is activated #
Press rocker switch 4up (RES).
The speed limit displa yed in the instrument
clus ter is adopte d asthestored speed. The
ve hicle adapts its speed tothat of theve hicle
in front, but only up tothestored speed. Pulling
away with Active Di stance Assist
DISTRO NIC #
Remo veyour foot from the brake pedal and
activate Active Dis tance Assi stDISTRONIC. #
Press rocker switch 4(RES) up.
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‐ Driving and parking
14 9

cle
topreve nt it from rolling away
before you lea vethe driver's seat. #
Press rocker switch 4down (CNCL).
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated.
Increasing or reducing the speed #
Press rocker switch 3up (SET+) or down
(SET-) tothe pressure point.
The stored speed is increased or reduced by
1 km/h.
or #
Press and hold rocker switch 3up/down to
th e pressure point.
The stored speed is increased or reduced in
increments of 1 km/h.
or #
Press rocker switch 3beyond the pressure
point.
The stored speed is increased or reduced by
10 km/h.
or #
Press and hold rocker switch 3beyond the
pressure point.
The stored speed is increased or reduced in
increments of 10km/h.
Re ducing or inc reasing the specified dis‐
tance from theve hicle in front #
Toincrease the specified distance: press
rock er switch 2down. #
Toreduce the speci fied distance: press
rock er switch 2up. Overview of
Active Di stance Assist
DISTRO NIC displa ysinthe instrument clus‐
ter Assistance
graphic 1
Vehicle in front
2 Distance indica tor
3 Set specified di stance 15 0
Driving and pa rking

Ac
tive Di stance Assist DISTRO NICstatus dis‐
play
1 Active Dis tance Assi stDISTRONIC selected,
set speci fied dis tance (number of segments
below theve hicle)
2 Active Dis tance Assi stDISTRONIC deacti va‐
te d, speed stored
3 Active Dis tance Assi stDISTRONIC acti ve,
speed stored, no vehicle de tected (gr eyvehi‐
cle symbol)
4 Active Dis tance Assi stDISTRONIC acti ve,
speed stored, vehicle de tected (green vehi‐
cle symbol)
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. Deactivation of Active Dis‐
ta nce Assi stDISTRONIC, as well as alterations to
th estored speed and the dis tance tobe main‐
ta ined, are displa yed in the control feedback of
th e multifunction display on a single line. 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 and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill 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 limitations
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%. Driving and parking
151

Ac
tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
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 deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer‐
ta in situations:
R Active Brake Assi st
R Active Dis tance Assi stDISTRONIC
R HOLD function
R Active Parking Assist
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Re
quirements:
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 switched toposition j. 15 2
Driving and pa rking

R
The vehicle is secured with the electric park‐
ing brake.
In thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
R The seat belt is unfas tened and the driver's
door is opened.
R The drive sy stem is switched off.
R There is a malfunction in the sy stem or the
po we r supply is insuf ficient. RACE
START Fu
nction of RACE START
RACE START enables optimal vehicle accelera‐
tion from a standstill. Forth is, a suitably high-
grip road sur face is requ ired, 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 114).
% 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 137). &
WARNING Risk of skidding and having
an accident from wheels spinning
When you use RACE STAR T,individual wheels
could spin and you could lose cont rol of the
ve hicle.
Depending on the ESP ®
mode selected, there
is an increased risk of skidding and having an
accident. #
Make sure that no persons or obstacles
are in the close vicinity of your vehicle. Ac
tivating RACE START
Re quirements:
R the doors, the bonn etand theta ilgate are
closed.
R the engine is running and the transmission
and engine are at normal operating temp era‐
ture. R
thesteering wheel is in thest ra ight-ahead
position.
R theve hicle is on le vel ground.
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 prog rams C, Bor
I is selected (/ page119). #
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. Driving and pa
rking 15 3

%
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 when theve hicle rea‐
ch es a speed of appr oximately 50 km/h.
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. Tr
action control Fu
nction of traction control &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ry
out vehicle stabilisation. #
ESP ®
should on lybe deactivated in the
fo llowing situations. Ad
jus table traction control is used toenhance
per form ance on a race track and is only acti va‐
te d when ESP ®
is deactivated. You can adjust
th e le vel of assis tance from traction control and,
in doing so, adjust the balance between stability
and agility gradually while accelerating.
Tr action control suppo rts yo u on ly in me tering
th e engine output. As ESP ®
is deactivated, ESP ®does not
stabilise theve hicle if theve hicle starts
to skid.
% Deactivating ESP ®
and using adjus table trac‐
tion control requires a highly qualified and
ex perienced driver.
Ad jus table traction control may not be used
on normal roads. Adjus table traction control
may only be activated and used on dedica‐
te dra ce circuits, not on public roads.
Be sure toread the saf ety no tes and infor‐
mation on ESP ®
(/ page 137).
Ad justing traction control
Requ irements:
R ESP ®
is deactivated. The åandESP OFF
wa rning lamps light up in the instrument
clus ter (/ page139).
Yo u can adjust the le vel of assis tance from trac‐
tion control and, in doing so, adjust the balance
between stability and agility gradually while
accelerating.
Ta ke thefo llowing parame ters into account:
R current road conditions 15 4
Driving and pa rking

R
type of tyre used
R road characteristics
R tyre conditions, such as temp erature or wear
R personal driving style #
Toinc rease or reduce the le vel of assis tance
from traction control, turn control wi thLED segment display
1clockwise or anti-clock‐
wise.
If yo u turn the control all thewa y anti-clo ck‐
wise (OFF), traction control is deactivated
and all the LEDs light up.
If yo u activate ESP ®
,th e le vel of assis tance from
traction control is controlled au tomatically. Fu
nction of the AMG DRIVE UNIT The AMG Drive
Unit consists of two additional
control elements on thesteering wheel.
Using the display buttons 2,you can decide
which two functions youwo uld like tooperate with
the left-hand AMG DRIVE UNIT control ele‐
ment. You can change between theav ailable
functions bypressing there spective display but‐
to n.
Yo u can select between thefo llowing functions:
R ESP ®
(/ page 137)
R AMG RIDE CONTROL (/ page157)
R AMG Performance exhaust sy stem
(/ page 119)
R ECO start/ stop function (/ page118)
R manual gearshifting (/ page124)
R fron t and reve rsing camera (/ page161)
The selected functions are displa yed in the dis‐
play buttons 2.
By pressing button 1,you can operate the
selected functions.
The selected functions remain stored even af ter
a new engine start but are reset totheir basic
setting.
Yo u can change between the drive programs
with thero tary adjus ter3. The selected drive
program appears in the display button 4. By Driving and parking
15 5

pressing
the display button 4,you can direct ly
access the drive prog ram = (Individual)
(/ page 119). Re
ar wing Ad
justing the stationary rear wing
Re quirements:
A soc ket wrench and a releasable, medium-
st re ngth bolt lo ckare available.
The rear wing impr oves there ar axle output and,
th erefore, theve hicle's driving stabilit y.Yo u can
mo vethere ar wing into an inclined and a flat
position.
When you mo vethere ar wing into the inclined
position, there ar axle output and the air resist‐
ance increase. #
Unscr ew the bolts 1with a soc ket wrench. #
Tilt th ere ar wing as far as it will go, upwards
in an inclined position, or down wards in a flat
position. #
Equip the bolts 1with a releasable,
medium- stre ngth bolt lo ckand tighten them.
Specified tightening torq ue: 10Nm. Ac
tive aerodynamics profile Fu
nction of the active aerodynamics profile
The active aerodynamics profile is located on the
underbody of the front section and automatically
re tracts and extends du ring a jou rney .To ge ther
with thest ationary rear wing, the active aerody‐ namics profile optimises
theve hicle's aerody‐
namics depending on theve hicle speed.
If yo u drive at a speed greater than 120 km/h,
th e active aerodynamics profile will automati‐
cally extend. In theI (RACE) driving pro‐
gramme, the active aerodynamics profile will
ex tend once a speed of 80 km/h has been
re ached.
If yo u drive at a speed lo werth an 80 km/h, or,
in theI (RACE) driving prog ramme, lo wer
th an 60 km/h, the active aerodynamics profile
will automatically retract.
Yo u can extend and retract the active aerody‐
namics profile manually for cleaning .
Extending and retracting the acti veaerody‐
namics profile for cleaning &
WARNING Risk of becoming trapped
when youre tract the active aerodynam‐
ics profile manually
When youre tract the active aerodynamics
profile manually, body parts may become
trapped. 15 6
Driving and pa rking

#
Ensu rethat no one is in the mo vement
ra nge of the active aerodynamics pro‐
fi le when you are retracting the active
aerodynamics profile. #
If someone becomes trapped during
retraction of the active aerodynamics
profile, press the display button again
immediatel y.
The active aerodynamics profile will
th en extend again. Re
quirements:
R The transmission has been shif tedto the
park position j.
R The ignition is switched on. #
Toextend/r etra ct: press display button 1.
No tethere stricted ground clearance when
th e active aerodynamics profile is extended.
The acti veaerodynamics profile extends to
th e maximum or retracts comple tely.
The display button symbol 2and its colour
indicate thefo llowing positions of the aero‐
dynamics profile:
R Aerodynamics profile retracted (blue) R
Aerodynamics profile extended in di ffer‐
ent positions (red)
R Aerodynamics profile extends or retracts
(g ra y)
If yo u press the display button 1again dur‐
ing extension, the aerodynamics profile will
re tract once more. If you press the display
button 1again during retraction, the aero‐
dynamics profile will extend once more.
% Ifyo u pull away while the active aerodynam‐
ics profile is extended, the active aerody‐
namics profile will retract au tomatically.
Alw ays no tethere stricted ground clearance
when an acti veaerodynamics profile is
ex tended. 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. Driving and pa
rking 157