2020 MERCEDES-BENZ AMG GT R-ROADSTER parking brake

Electric pa
rking brake Electric parking brake function (app
lying
automatically) &
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. The elect
ric pa rking brake is applied if the trans‐
mission is in position jand one of thefo llow‐
ing conditions is fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
% Toprev ent application: pull the handle of the
electric parking brake.
In thefo llowing situations, the electric parking
brake is also applied:
R Active Dis tance Assi stDISTRONIC is bringing
th eve hicle toast andstill.
R The HOLD function is keeping theve hicle sta‐
tionar y. R
Active Parking Assist is keeping theve hicle
st ationar y.
This is the case if one of thefo llowing conditions
is also fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
R There is a sy stem malfunction.
R The po wer supply is insuf ficient.
R The vehicle is stationary for a lengt hyperiod.
When the electric parking brake is applied, the
re d! indicator lamp lights up in the instru‐
ment clus ter.
The electric parking brake is not automatically
applied if the engine is switched off bythe ECO
st art/ stop function. Driving and parking
12 9

Electric pa
rking brake function (releasing
automatically)
The elect ric pa rking brake is released when the
fo llowing conditions are fulfilled:
R The driver's door is closed.
R The engine is running.
R The transmission is in position hork and
yo u depress the accelera tor pedal or you
shift from transmission position jtoh or
k when on le velground withthe driver's
door closed.
R Ifth e transmission is in position k,theta il‐
gate must be closed.
R The seat belt tongue is inser ted into the seat
belt buckle of the driver's seat.
If th e seat belt tongue is not inser ted into the
seat belt buckle of the driver's seat, one of the
fo llowing conditions must be fulfilled:
R You shift from transmission position j.
R You ha veprev iously driven at speeds greater
th an 3 km/h. When
the electric parking brake is released, the
re d! indicator lamp in the instrument clus‐
te r goes out.
Applying/releasing the electric pa rking
brake manually
Applying #
Push handle 1.
The red! indicator lamp lights up in the
instrument clus ter.
% The electric parking brake is only securely
applied if the indicator lamp is lit continu‐
ously.
Re leasing #
Swit chon the ignition. #
Pull handle 1.
The red! indicator lamp in the instru‐
ment clus ter goes out.
Emer gency braking #
Press and hold handle 1.
As long as theve hicle is driving, theRelease
parking brake message is displa yed and the
re d! indicator lamp flashes.
When theve hicle has been braked to a
st andstill, the electric parking brake is
applied. The red! indicator lamp lights
up in the instrument clus ter. 13 0
Driving and pa rking

R
ABS pr events the wheels from locking.
The brakes will function as usual once you
re lease the brake pedal. BAS is deactivated. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ry
out vehicle stabilisation. In addition, other
driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified spe‐
cialist workshop. Yo
u can select between thefo llowing modes of
ESP ®
:
R ESP ®
ON
R ESP ®
SPO RT
R ESP ®
OFF Charac
terist ics when ESP ®
is activated
ESP ®
monitors and impr oves driving stability and
traction, particular ly inthefo llowing situations:
R When pulling away on wet or slippe rycar ria‐
ge wa ys.
R When braking.
ESP ®
can stabilise theve hicle byinter vening in
th efo llowing ways:
R One or more wheels are braked.
R The engine output is adap ted according to
th e situation.
ESP ®
is activated every time the engine is star‐
te dre ga rdless of whe ther ESP ®
wa s in ESP ®
SPORT or deactivated before the engine was
switched off.
If th e÷ ESP®
wa rning lamp flashes in the
instrument clus ter,one or se veralve hicle wheels
has reached its grip limit:
R Adapt the driving style to suit the pr evailing
ro ad and weather conditions. R
Do not deactivate ESP ®
under any circum‐
st ances.
R Onlydepress the accelera tor pedal as far as
is necessar y.
Cha racteristics of ESP ®
SPORT &
WARNING Risk of skidding if ESP ®
SPORT is used incor rectly
When you activate ESP ®
SPOR T,there is an
increased risk of skidding and having an acci‐
dent. #
Activate ESP ®
SPO RTonly in the cir‐
cums tances described belo w. When ESP
®
SPORT is activated, theå and
Æ warning lamps light up continuously in the
instrument clus ter.
Select ESP ®
SPORT when theve hicle's own
ove rste ering and under steering characteristics
are desired, e.g. on designated roads.
Driving with ESP ®
SPO RTor with ESP ®
deactiva‐
te dre qu ires an extreme ly qualified and experi‐
enced driver. Driving and parking
13 3

Au
tonomous braking function
The autonomous braking function may inter vene
at speeds ab oveappr oximately 7 km/h in the
fo llowing situations:
R Vehicles tr avelling in front:
- Vehicles without Active Dis tance Assi st
DISTRONIC: up toappr oximately
10 5 km/h
- Vehicles with Active Dis tance Assi st
DISTRONIC: up toappr oximately
200 km/h
R Stationary vehicles: uptoappr oximately
50 km/h
Situation-dependent braking assistance
Situation-dependent braking assis tance may
inter vene at speeds ab oveappr oximately
7 km/h in thefo llowing situations:
R Vehicles tr avelling in front: uptoappr ox‐
imately 250 km/h
R Stationary vehicles: uptoappr oximately
70 km/h Cancelling a brake application of
Active
Brake Assi st
Yo u can cancel a brake application of Active
Brake Assi stat any time by:
R Fully depressing the accelera tor pedal or
with kickdown.
R Releasing the brake pedal.
Ac tive Brake Assi stmay cancel the brake appli‐
cation when one of thefo llowing conditions is
fulfilled:
R You manoeuv retoavo idthe obs tacle.
R The reis no longer a risk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle.
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R Ifth e sensors are dirty, mis ted up, damaged
or co vered. R
Ifth e sensors are impaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflections in multi-s torey car par ks.
R If a loss of tyre pressure or a defective tyre
has been de tected and display ed.
R Full sy stem per form ance is not available for a
fe w seconds af ter switching on the ignition
or af ter driving off.
R In complex traf fic situations whe reobjects
cannot always be clearly identified.
R Forve hicles if they mo vequickly into the
sensor de tection range.
R On bends wi tha tight radius.
% The Active Brake Assi stsensors adjust auto‐
matically while a cer tain dis tance is being
driven af terth eve hicle has been delivered.
Ac tive Brake Assi stis una vailable or only
partially available during this teach-in period. Driving and parking
137

&
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. #
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. Driving and parking
14 3

R
The electric parking 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: 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. Driving and pa
rking 14 5

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 106).
% 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 obstacles
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. 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.14 6
Driving and pa rking

Switching
reve rsing camera automatic mode
on/off
The reve rsing camera is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range. Pay attention to your sur‐
ro undings and be ready tobrake at all times.
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Camera & Park. Assist
5 Auto reversing camera #
Switch the function on Oor off ª. AT
TENTION ASSI STFu
nction of ATTENTION ASSI ST
AT TENTION ASSIST assists you on long, mon oto‐
nous journe ys, e.g. on mo torw ays and trunk
ro ads. If ATTENTION ASSIST de tects indicators
of fatigue or increasing lapses in concentration
on the part of the driver, it suggests taking a
brea k. AT
TENTION ASSIST is only an aid. It cannot
alw ays de tect fatigue or lapses in concentration
in time. The sy stem is not a substitute for a well-
re sted and attentive driver. On long journe ys,
ta ke regular breaks in good time that allow for
adequate recuperation.
Yo u can choose between two settings:
R Standard: normal sy stem sensitivity.
R Sensitive: higher system sensitivity. The
driver is warned earlier and the attention
le ve l de tected byATTENTION ASSIST is adap‐
te d according ly.
If dr owsiness or increasing lapses in concentra‐
tion are de tected, theATTENTION ASSIST: Take
a break! warning appears in the Instrument Dis‐
pla y.Yo u can ackn owledge the message and
tak e a break where necessar y.Ifyo u do not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes. Yo
u can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assis tance
menu of the on-board computer:
R The length of the journey since the last
break.
R The attention le vel de term ined byATTENTION
ASSIS T.
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If a warning is given in the Instrument Displa y,
th e multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐ 15 6
Driving and pa rking