lane assist MERCEDES-BENZ AMG GT R-ROADSTER 2020 Owners Manual

Note
s on parking up theve hicle If
yo u lea vetheve hicle par ked up for longer than
six weeks, it may suf fer dama gethro ugh disuse.
The 12V battery may also be impaired or dam‐
aged byheavy discharging.
% Further information can be obtained at a
qu alified specialist workshop. Driving and driving saf
ety sy stems Driving sy
stems and your responsibility Yo
ur vehicle is equipped with driving sy stems
which assist you in driving, parking and manoeu‐
vring theve hicle. The driving sy stems are only
aids. They are not a substitute foryo ur attention
to the sur roundings and do not relie ve you of
yo ur responsibility per taining toroad traf fic la w.
The driver is alw aysre sponsible for maintaining
a safe dis tance totheve hicle in front, forve hicle
speed, for braking in good time and forst ay ing
in lane. Pay attention tothe tra ffic conditions at
all times and inter vene when necessary . Be
aw are of the limitations rega rding the safe use of
th ese sy stems. Driving sy
stems can neither reduce therisk of
accident if youfa ilto adapt your driving style nor
ove rride the la wsof ph ysics. They cannot alw ays
ta ke into account road, weather or traf fic condi‐
tions. In
fo rm ation on vehicle sensors and cameras 1
Multifunction camera
2 Front camera
3 Ultrasonic sensors
4 Reversing camera
% Depending on theve hicle's equipment, the
ra dar sensors are integ rated behind the
bumpers and/or behind thera diator grille. Driving and parking
131

Some driving and driving safe
ty systems use
cameras and sensors tomonitor the area in
front of, behind or next totheve hicle.
Ke ep the areas around the sensors and cameras
free of dirt, ice or slush (/ page 299). The cam‐
eras and sensors must not be co vered, forex am‐
ple bybicycle rack s, overhanging loads, sticke rs,
fo il or foils toprotect against stone chipping.
Ad ditional licence plate brac kets can impair the
function of the ultrasonic sensors, in particular.
In theeve nt of damage or a severe impact in the
area of the sensors, ha vethe function of the
sensors checked at a qualified specialist work‐
shop. Ha vedamage or stone chipping in the area
of the cameras repaired at a qualified specialist
wo rkshop. If the sensors or cameras are dam‐
aged, some driving sy stems and driving saf ety
sy stems may no longer function proper ly.Overview of driving sy
stems and driving
saf ety sy stems R
ABS (Anti-lo ckBra king System)
(/ page 132)
R BAS (Bra keAssist System) (/ page132) R
ESP ®
(Electronic Stability Program)
(/ page 133)
R EBD ( Electronic Brakeforc eDistribution)
(/ page 135)
R Active Brake Assi st (/ page 135)
R Adaptive Brake Lights (/ page138)
R Cruise control (/ page 138)
R Limi ter (/ page139)
R Active Dis tance Assi stDISTRONIC
(/ page 141)
R Hill Start Assist (/ page144)
R HOLD function (/ page145)
R RACE START (/ page 146)
R AMG RIDE CONTROL (/ page150)
R Front and reve rsing camera (/ page154)
R ATTENTION ASSIST (/ page156)
R Traf fic Sign Assi st (/ page 157)
R Blind Spot Assi st (/ page 159)
R Lane Keeping Assist (/ page160) Fu
nction of ABS The Anti-lock Brake Sy
stem (ABS) regulates the
brake pressure in critical driving situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr eve nted from lock ing.
R Vehicle steerability while braking is ensured.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditions and can ser veas a reminder totake
ex tra care while driving. Fu
nction of BAS The Brake Assist Sy
stem (BAS) supports your
eme rgency braking situation with additional
brake forc e.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatically boosts the brake pres‐
sure.
R BAS can sho rten the braking dis tance. 13 2
Driving and pa rking

Pe
rm anent limi ter
If th eve hicle should ne verexc eed a specific
speed (e.g. for driving in winter tyre mode), you
can set this speed with the permanent limiter.
Yo u do this by limiting the speed toava lue
between 160 km/h and 240 km/h in the multi‐
media sy stem (/ page141).
Shortly before the set speed is reached, it
appears in the multifunction displa y.When you
confirm the message, display messages no lon‐
ge r appear until you swit choff theve hicle. The
speed will only be displa yed again once theve hi‐
cle has been restar ted or if the set speed is
ch anged.
The permanent limiter does not swit chtopas‐
sive mode even du ring kickdown and the driven
speed remains below the set speed.
Setting the speed limitation for winter tyres
Multimedia sy stem:
4 Vehicle 5
î Vehicle settings
5 Winter tyres limit #
Select a speed or deactivate the function. Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist
DISTRO NIC
Ac tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are de tected, the set dis tance is main‐
ta ined, if necessar y,until theve hicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and
th e set speed. The speed (in thera nge between
30 km/h and 200 km/h) and the dis tance tothe
ve hicle in front are set and sa ved on thesteering
wheel.
Other features of Active Dis tance Assi st
DISTRONIC:
R Adjusts the driving style depending on the
selected drive program (fuel ef ficient, com‐
fo rtable or dynamic) (/ page117)
R Initiates ac celerationtothestored speed if
th e turn signal indicator is switched on to
ch ange totheove rtaking lane
Obse rveth e no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 131). Ac
tive Di stance Assist DISTRO NIC displaysin
th e instrument clus ter Assi
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 Driving and park
ing141

&
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

tion
tothis rest area. This function can be activa‐
te d and deactivated in the multimedia sy stem.
If AT TENTION ASSIST is deactivated, theÛ
symbol appears in the assis tance graphic in the
Instrument Display when the engine is running.
AT TENTION ASSIST is activated automatically
when the engine is re-sta rted. The last selected
sensitivity le velre mains stored.
Sy stem limits
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The functionality of ATTENTION ASSIST is
re stricted, and warnings may be dela yed or not
occur at all in thefo llowing situations:
R Ifyo u ha vebeen driving for less than appr ox‐
imately 30 minutes.
R Ifth ero ad condition is poor (une venro ad
sur face or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
R Ifth e time has been set incor rectl y. R
Ifyo uch ange lanes and vary your speed fre‐
qu ently In active driving situations.
The ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing the journey in thefo llowing situations:
R Ifyo u swit choff the engine.
R Ifyo u unfas tenyo ur seat belt and open the
driver's door (e.g. changing drivers or taking
a break).
Setting ATTENTION ASSI ST
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 ATTENTION ASSIST
Setting options #
Select Standard, SensitiveorOff.
Suggesting a rest area #
Select Suggest rest area . #
Activate Oor deacti vate the function ª.
If AT TENTION ASSIST de tects fatigue or
increasing la ckof attention, it suggests a
re st area in the vicinit y. #
Select a sugges tedre st area: you are gui‐
ded tothe selected rest area. Tr
af fic Sign Assist Fu
nction of Traf fic Sign Assist
Tr af fic Sign Assi stdetects traf fic signs wi th a
multifunction camera. It assist syo uby display‐
ing de tected speed limits and overtaking restric‐
tions in the instrument clus ter.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 131).
Since Traf fic Sign Assi stalso uses the data
st ored in the navigation sy stem, it can update
th e display in thefo llowing situations without
de tecting traf fic signs.
If th e sy stem de tects that you are driving on to a
section of road in the wrong direction of trave l, it
triggers a warning.
The camera also de tects traf fic signs wi th a
re striction indicated byan additional sign (e.g.
when wet). Driving and pa
rking 157

R
Ifth e signs are ambiguous, e.g. tra ffic signs
on const ruction sites or in adjacent lanes.
R Ifyo u turn sharpl y,when passing traf fic signs
outside the camera's field of vision.
Setting Traf fic Sign Assist
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Traffic Sign Assist
Displaying de tected traf fic signs in the
media display #
Select Display in COMAND. #
Activate Oor deacti vate ª the function. Blind Spot Assist
Fu
nction of Blind Spot Assist
At speeds abo veappr oximately 30 km/h, Blind
Spot Assist uses two lateral, rear-facing radar
sensors tomonitor the area up to3 m behind
yo ur vehicle and directly next to yourvehicle.
Below 30 km/h, the sy stem is not active and
ve hicles in the monitoring range are not de tec‐
te d. If Blind Spot Assist is activated,
thewa rning
lamp in theex terior mir ror lights up yellow at
speeds of up to30 km/h. Atspeeds abo ve
appr oximately 30 km/h, thewa rning lamp goes
out and Blind Spot Assist is operational.
If a vehicle is de tected with inthe monitoring
ra nge at speeds ab ove30 km/h, thewa rning
lamp in theex terior mir ror lights up red.
If a vehicle is de tected close to yourvehicle in
th e lateral monitoring range and you swit chon
th e turn signal indicator in the cor responding
direction, a warning tone sounds once and the
wa rning lamp in theex terior mir rorflashes red. If
th e turn signal indicator remains switched on, all
ot her de tected vehicles are indicated only bythe
fl ashing of there dwa rning lamp.
If yo uove rtake a vehicle quickl y,no warning is
given. &
WARNING Risk of accident despite Blind
Spot Assi st
Blind Spot Assi stdoes not react tovehicles
approaching and overtaking you at a greatly
di fferent speed. Blind Spot Assist cann
otwa rndrivers in this
situation. #
Alw ays pay careful attention tothe traf‐
fi c situation and maintain a safe dis‐
ta nce at the side of theve hicle. Blind Spot Assist is only an aid. It may
failto
de tect some vehicles and is not a substitute for
attentive driving. Alw ays ensure that there is suf‐
fi cient dist ancetothe side forot her road users
and obs tacles.
Sy stem limits
The sy stem may be limited in thefo llowing situa‐
tions:
R The sensors are dirty or co vered.
R Poor visibility, e.g. due tofog, heavy rain,
snow or spr ay.
R Narrow vehicles, e.g. bicycles, are within the
monitoring range.
R Ifth e lanes are very nar row or very wide,
especially if vehicles are not driving in the
middle of their lane. Driving and parking
15 9

Wa
rnings may be issued in er ror when driving
close tocrash barr iers or similar continuous lane
borders. Warnings may be inter rupte d when driv‐
ing alongside long vehicles, forex ample lor ries,
fo r a prolonged time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
Ac tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Blind Spot Assist #
Activate Oor deacti vate ª the function. Lane
Keeping Assist Fu
nction of Lane Keeping Assist
Lane Keeping Assist monitors the area in front of
yo ur vehicle bymeans of multifunction camera
(/ page 131). It ser vesto protect you against
unin tentional lyleaving your lane. You will be
wa rned bymeans of a vibration in thesteering
wheel. Lane
Keeping Assist is available in the speed
ra nge between 60 km/h and 200 km/h.
Lane Keeping Assist can neither reduce therisk
of an accident if youfa ilto adapt your driving
st yle nor override the la wsof ph ysics. It cannot
ta ke into account road, weather or traf fic condi‐
tions. Lane Keeping Assist is only an aid. You are
re sponsible for maintaining a safe dis tance to
th eve hicle in front, forve hicle speed, for braking
in good time and forst ay ing in lane.
Yo u are warned byvibration pulses in thesteer‐
ing wheel in thefo llowing circums tances:
R Lane Keeping Assist de tects lane markings.
R A front wheel passes over the lane markings.
Whe ther a warning is issued and when this
occurs also depends on the selected sensitivity
setting (s tanda rdor adaptive).
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are highly
variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
th e sun or reflections.
R Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks.
R Ifth e lane markings are worn, dark or cov‐
ered.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R Ifth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
R Ifth e car riag ewa y is very nar row and wind‐
ing. 16 0
Driving and pa rking

Sensitivity of Lane
Keeping Assist
Wi th th eSt andard or Adaptive setting, you can
influence when thewa rning vibration of Lane
Ke eping Assist take s place.
In bo th theSt andard and Adaptive settings, no
wa rning vibration occurs in thefo llowing situa‐
tions:
R You ha veswitched on the turn signal indica‐
to r.
R A driving sa fety sy stem inter venes, su chas
ABS, BAS or ESP ®
.
In theAd aptive setting, there will also be no
wa rning vibration in thefo llowing situations:
R The vehicle is accelerated or braked consid‐
erably.
R Yousteer actively, e.g. swer vetoavo id an
obs tacle or change lane quickl y.
R You cut the corner on a sharp bend. Ve
hicle towing instructions
The vehicle is not suitable forth e use of tow bar
sy stems that are used forflat towing or ding hyto
wing, forex ample. Attach ing and using tow bar
sy stems can lead todamage on theve hicle.
When you are towing a vehicle with tow bar sys‐
te ms, safe driving characteristics cannot be
guaranteed forth eto wing vehicle or theto wed
ve hicle. The vehicle-trailer combination may
swer vefrom side toside. Comply with the per‐
mitted towing me thods (/ page315) and the
instructions forto wing with bo thaxles on the
ground (/ page315). Driving and pa
rking 161

When
the on-board computer is being operated,
dif fere nt acoustic signals will sound as operating
fe edbac k,e.g. when the end of a list is reached
or when you are sc rolling thro ugh a list.
The following menus are available:
R Service
R Assistance
R Performance
R Trip
R Navigation
R Radio
R Media
R Telephone
R Design
% You can find information about the possible
settings and selections on the menus in the
Digital Owner's Manual. #
Tocall up the menu bar: pressthe left-hand
back button until the menu bar is displa yed. %
Ve
hicles without Active Di stance Assist
DISTRO NIC:press theò button tocall
up the menu bar of the on-board computer. #
Toscroll in the menu bar: swipe left or
ri ght on the left-hand Touch Control. #
Tocall up a menu, submenu or possible
settings on the menu, or confirm a selec‐
tion or setting: pressthe left-hand Touch
Control. #
Toscroll through displa ysor lists on the
menu, or select display content, a func‐
tion, an entry or a displa y:swipe upwards
or down wards on the left-hand Touch Con‐
trol. #
Toexit a submenu: pressthe left-hand back
button. Overview of what is shown on
the multi‐
function display
Displa yson the multifunction display
é Parking Assist PARKTRONIC deacti vated
( / page 153) ¯
Cruise
control (/ page 138)
È Limi
ter (/ page139)
ç Active Dis tance Assi stDISTRONIC
(/ page 141)
ê Active Brake Assi st (/ page 138)
à Lane
Keeping Assist (/ page160)
è ECO
start/ stop function
ë HOLD function (/
page145)
_ Ad
aptive Highbeam Assist (/ page 93)
ð Maximum permissible speed exceeded
(for cer tain countries only)
Ve hicles with Traf fic Sign Assis t:de tected
instructions and traf fic signs (/ page 157). Ad
justing the in stru ment lighting
Multimedia sy stem:
4 Vehicle 5
÷ Light settings #
Select Instrument lighting. #
Set a brightness value.
The brightness of the instrument display will
be adap ted. Instrument display and on-board computer
16 5

1,
2, 3 ...
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V) A
A/C function Switching on/o ff(control panel) .......... 101
ABS (Anti-lock Braking Sy stem) ............ .132
Ac celeration
see Kickdown
Ac cess data
Editing (Blue tooth®
) .............................2 61
Setting (Blue tooth®
) ............................ 258
Setting (business telephony) .............. .259
Ac cident and Breakdown Manage‐
ment
Mercedes me connect .........................2 53
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 61Ac
tivating/deactivating automatic
vo lume adjustment
Burmes ter®
sur round sound sy stem ....2 87
Ac tive Brake Assi st
Fu nction/no tes ................................... 13 5
Setting ................................................. 13 8
Ac tive Di stance Assist DISTRO NIC......... 141
Calling up a speed ...............................1 43
Fu nction ............................................... 141
Increasing/decreasing speed .............. 14 3
Re quirements: .................................... .143
Selecting ............................................. 14 3
St eering wheel buttons ........................ 14 3
St oring a speed ................................... 14 3
Switching off/deacti vating .................. 14 3
Switching on/activating ...................... 14 3
Sy stem limitations ...............................1 41
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ad aptive
see Lane Keeping Assist
Ad aptive brake lights ..............................13 8
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC Ad
aptive Highbeam Assist
Fu nction ................................................ 93
Switching on/o ff................................... 94
Ad ditional door lo ck.................................. 63
Ad diti ves.................................................. 342
Engine oil ............................................ 342
Fu el ..................................................... 342
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance
Burmes ter®
high-end Sur round
sound sy stem ...................................... 288
Burmes ter®
sur round sound sy stem ....2 87
Ad justing the bass, mid- range and
treble
Burmes ter®
high-end Sur round
sound sy stem ...................................... 288
Burmes ter®
sur round sound sy stem ....2 87 Index
403