2016 MERCEDES-BENZ AMG GT ROADSTER brake

Cornering, entering and exiting a bend
The ability of DISTRONIC PLUS to detect vehi-
cles when cornering is limited. Your vehicle may
brake unexpectedly or late.
Vehicles which are not driving in the mid-
dle of their lane DISTRONIC PLUS may not detect vehicles which
are not driving in the middle of their lane. The
distance to the vehicle in front will be too short.
Other vehicles changing lane DISTRONIC PLUS has not detected the vehicle
cutting in yet. The distance to this vehicle will be too short. Narrow vehicles
DISTRONIC PLUS has not yet detected the vehi-
cle in front on the edge of the carriageway
because of its narrow width. The distance to thevehicle in front will be too short.
Obstructions and stationary vehicles DISTRONIC PLUS does not brake for obstacles
or stationary vehicles. If, for example, the detec-
ted vehicle turns a corner and reveals an obsta- cle or stationary vehicle, DISTRONIC PLUS will
not brake for these.
Crossing vehicles DISTRONIC PLUS may mistakenly detect vehi-
cles that are crossing your lane. Activating Driving systems
137Driving and parking Z

DISTRONIC PLUS at traffic lights with crossing
traffic, for example, could cause your vehicle to pull away unintentionally. HOLD
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when manoeuvring on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the driver having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply
R the HOLD function is deactivated by the
accelerator pedal being depressed, e.g. by
a vehicle occupant
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with
R the battery is disconnected
There is a risk of an accident.
Before leaving the vehicle, always deactivate
the HOLD function and secure the vehicle
from rolling away.
! When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat- ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
R when towing away
R in a car wash
Deactivating the HOLD function (Y page 138).Activation conditions You can activate the HOLD function if:
R the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or if your seat belt
is fastened
R the electric parking brake is released
R the transmission is in position D,Ror N
Activating the HOLD function X
Make sure that the activation conditions are
met.
X Depress the brake pedal.
X Quickly depress the brake pedal further until
HOLD HOLD :appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically
if:
R you depress the accelerator and the trans-
mission is in position Dor R.
R you shift the transmission to position P.
R you apply the brakes again with a certain
amount of pressure until HOLD HOLDdisappears
from the multifunction display.
R you secure the vehicle using the electric park-
ing brake. 138
Driving systemsDriving an
d parking

i
After a short period, the vehicle is secured
by the electric parking brake, thus relieving
the service brake.
The electric parking brake secures the vehicle
automatically if the HOLD function is activated,
the vehicle is stationary and:
R the driver's seat belt is not fastened and the
driver's door is open
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
R a system fault occurs
R the power supply is insufficient
If the electric parking brake is not operational, a
horn will sound at regular intervals. The HOLD
function must then be deactivated.
If a malfunction occurs, the transmission may
also be shifted to position Pautomatically.
The Brake immediately Brake immediately message may also
appear in the multifunction display.
X Immediately depress the brake pedal firmly
until the warning message on the multifunc-
tion display goes out.
The HOLD function is deactivated. A horn will
sound at regular intervals if you turn off the
engine, take off your seat belt or open the driv-
er's door when the HOLD function is activated.
The horn alerts you to the fact that the HOLD
function is still activated. If you attempt to lock the vehicle, the tone becomes louder. The vehi-cle cannot be locked until you have deactivated
the HOLD function.
i Once you have switched off the engine, you
cannot restart it until you have deactivated
the HOLD function. RACE START
Important safety notes i
RACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, outside
of public road use.
RACE START enables optimum acceleration
from a standing start. For this, a suitably high-
grip road surface is required, along with the
tyres and vehicle being in good condition. G
WARNING
If you use RACE START, individual tyres may
get into a spin and the vehicle could skid.
Depending on the selected ESP ®
mode, there
is an increased risk of skidding and having an accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
i Observe the safety notes on driving safety
systems (Y page 54).
Be sure to read the safety notes and informa-
tion on ESP ®
(Y page 57).
Activation conditions You can activate RACE START if:
R the doors are closed
R the engine is running and the engine and
transmission are at operating temperature.
This is the case when the oil temperature
gauge in the multifunction display is shown in white (Y page 167).
R ESP ®
is functioning correctly (Y page 58)
R the steering wheel is in the straight-ahead
position
R the vehicle is stationary and the brake pedal is
depressed sufficiently (left foot)
R the transmission is in position D
R drive program S,S+ orRACE is selected
(Y page 108)
Activating RACE START i
When manual mode (Y
page 115) is active,
the transmission automatically shifts up to
RACE START in the drive program. This func-
tion supports maximum acceleration with
RACE START. After going through an acceler- ating process once from a stationary position,
this function is automatically deactivated.
X Depress the brake pedal with your left foot
and keep it depressed.
X Pull and hold both steering wheel gearshift
paddles.
X The RACE START Confirm: Paddle UP RACE START Confirm: Paddle UP
Cancel: Paddle DOWN Cancel: Paddle DOWN message appears in
the multifunction display.
X Release both steering wheel gearshift pad-
dles. Driving systems
139Driving and parking Z

i
If the activation conditions are no longer ful-
filled, RACE START is cancelled. The RACE
RACE
START not possible See Owner's Man‐
START not possible See Owner's Man‐
ual
ual message appears in the multifunction
display.
X To cancel: pull the left steering wheel shift
paddle (Y page 113).
or X To confirm: pull the right steering wheel shift
paddle (Y page 113).
The RACE START available Depress
RACE START available Depress
accelerator
accelerator message appears in the multi-
function display.
i If you do not depress the accelerator pedal
within a few seconds, RACE START is cancel-
led. The RACE START cancelled
RACE START cancelled message
appears in the multifunction display.
X Fully depress the accelerator pedal.
The engine speed increases.
The RACE
RACE START START Release
Release brake
braketo
tostart
start
message appears in the multifunction display.
i If the brake pedal is not released after a
short while, RACE START is cancelled. The
RACE RACE START
START cancelled
cancelled message appears in
the multifunction display.
X Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum acceler-
ation.
The RACE
RACE START START active
active message appears in
the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 50 km/h.
RACE START is deactivated immediately if you
release the accelerator pedal during RACE
START or if any of the activation conditions are
no longer fulfilled. The RACE START not pos‐
RACE START not pos‐
sible See Owner's Manual
sible See Owner's Manual orRACE START RACE START
cancelled
cancelled message appears in the multifunc-
tion display.
i After using it several times in short succes-
sion, RACE START will be unavailable until a
certain distance has been driven. AMG RIDE CONTROL
General notes The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort.
The damping is tuned individually to each wheel
and depends on:
R your driving style, e.g. sporty
R the road surface condition, e.g. bumps
R your individual selection of Sport, Sport + or
Comfort
The suspension setting is adjusted using the
corresponding button in the centre console.
i The mode can also be set using the
DYNAMIC SELECT controller (Y page 108).
If the ignition is switched off for less than four
hours, the previously selected drive program is
activated when the engine is next started. If the ignition is switched off for more than four hours,
Comfort mode is activated when the engine is
next started.
Sport mode The firmer setting of the suspension tuning in
Sport mode ensures even better contact with
the road. Select this mode when employing a
sporty driving style, e.g. on winding country
roads.
X Press button :once.
Indicator lamp =lights up. You have selected
Sport mode.
The AMG Ride Control SPORT AMG Ride Control SPORT message
appears in the multifunction display. 140
Driving systemsDriving and parking

Sport + mode
The very firm setting of the suspension setting in
Sport + mode ensures the best possible contact
with the road. Select this mode only when driv-
ing on race circuits.
If indicator lamps ;and =are off:
X Press button :twice.
Indicator lamps ;and =light up. You have
selected Sport + mode.
The AMG Ride Control SPORT +
AMG Ride Control SPORT + message
appears in the multifunction display.
If indicator lamp =lights up:
X Press button :once.
Second indicator lamp ;lights up. You have
selected Sport + mode.
The AMG Ride Control SPORT +
AMG Ride Control SPORT + message
appears in the multifunction display.
Comfort mode In Comfort mode, the driving characteristics of
your vehicle are more comfortable. Select this
mode if you prefer a more comfortable driving
style, but also when driving fast on straight
roads, e.g. motorways.
X Press button :repeatedly until indicator
lamps ;and =go out.
You have selected Comfort mode.
The AMG Ride Control COMFORT
AMG Ride Control COMFORT message
appears in the multifunction display. PARKTRONIC
Important safety notes PARKTRONIC is an electronic parking aid with
ultrasound. It monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper.
PARKTRONIC visually and audibly indicates the
distance between your vehicle and an object.
PARKTRONIC is only an aid. It is not a substitute
for your attention to the immediate surround-
ings. The responsibility for safe manoeuvring
and parking remains with you. Make sure that
there are no persons, animals or objects in
range while manoeuvring and parking.
! When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. PARKTRONIC does not detect such objects when they are in
the immediate vicinity of the vehicle. You
could damage the vehicle or the objects.
The sensors may not detect snow and objects which absorb ultrasonic sources.
Ultrasonic sources, such as an automatic car
wash, a lorry's compressed-air brakes or a
pneumatic drill, could cause PARKTRONIC to
malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you: R switch on the ignition
R shift the transmission to position D,Ror N
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
Range of the sensors General notes
PARKTRONIC does not take into account obsta-
cles located:
R below the detection range, e.g. persons, ani-
mals or objects
R above the detection range, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles :
Sensors in the front bumper, left-hand side
(example) Driving systems
141Driving and parking Z

Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in front of
your vehicle by means of multifunction cam-
era :attached at the top of the windscreen.
Lane Keeping Assist detects lane markings on
the road and can warn you before you leave your lane unintentionally.
This function is available in a speed range
between 60 km/h and 200 km/h.
A warning may be given if a front wheel passes
over a lane marking. It will warn you by means of intermittent vibration through the steering
wheel for up to 1.5 seconds.
Important safety notes G
WARNING
Lane Keeping Assist cannot always clearly
identify lane markings.
In these cases, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep in lane, especially if Lane
Keeping Assist alerts you. G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is a risk of an accident.
Always steer, apply the brakes or accelerate
the vehicle yourself, especially if Lane Keep-
ing Assist alerts you. If you fail to adapt your driving style, Lane Keep-
ing Assist can neither reduce the risk of an acci-
dent nor override the laws of physics. Lane
Keeping Assist cannot take into account road,
weather or traffic conditions. Lane Keeping
Assist is only an aid. You are responsible for the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
lane.
Lane Keeping Assist does not keep your vehicle
in its lane.
The system may be impaired or may not function if:
R there is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,fog or spray
R there is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
R the windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R no or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R the lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
R the distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
R the lane markings change quickly, e.g. lanes
branch off, cross one another or merge
R the road is narrow and winding
R there are highly variable shade conditions on
the road
Activating Lane Keeping Assist
X Activate Lane Keeping Assist using the on-
board computer; to do so, select Standard Standardor
Adaptive
Adaptive (Ypage 165).
If you drive at speeds above 60 km/h and lane
markings are detected, the lines in the assis- tance graphic display (Y page 163) are
shown in green. Lane Keeping Assist is ready
for use.
Standard When Standard Standard is selected, no warning vibra-
tion occurs if: Driving systems
153Driving and parking Z

R
you have switched on the turn signal. In this
case, the warnings are suppressed for a cer-
tain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive When Adaptive
Adaptive is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signal. In this
case, the warnings are suppressed for a cer-
tain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system detects certain conditions and
warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend
R the road has very wide lanes, e.g. a motorway
R the system detects solid lane markings
The warning vibration occurs later if:
R the road has narrow lanes
R you cut the corner on a bend 154
Driving systemsDriving and pa
rking

Safety systems
Display messages
Possible causes/consequences and
M
MSolutions !÷
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual ABS (Anti-lock Braking System) and ESP
®
(Electronic Stability Pro-
gram) are temporarily unavailable.
Other driving and driving safety systems may also be malfunctioning.
In addition, the ÷and! warning lamps light up in the instru-
ment cluster.
For example, the on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected. The braking distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased risk of skidding and/or accident.
X Drive on carefully.
Carefully drive on a suitable stretch of road, making slight steering
movements at a speed above 20 km/h.
If the display message disappears, the functions mentioned above
are available again.
If the multifunction display still shows the display message: X Drive on carefully.
X Consult a qualified specialist workshop immediately. !÷
inoperative inoperative See SeeOwn‐
Own‐
er's Manual
er's Manual ABS and ESP
®
are malfunctioning.
Other driving and driving safety systems may also be malfunctioning.
In addition, the J,÷and! warning lamps may light up in
the instrument cluster.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected. The braking distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased risk of skidding and/or accident.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. 172
Display messagesOn-board computer and displays