2019 MERCEDES-BENZ AMG GT ROADSTER lock

The rear spoiler is extended automatically if you
drive faster than:
R 75 mph (120 km/h) in drive programs C,S
and S+
R 44 mph (70 km/h) in drive program RACE
Button 0043flashes until the rear spoiler has
extended and then lights up in red.
The rear spoiler is retracted automatically when
you drive slower than:
R 50 mph (80 km/h) in drive programs C,Sand
S+
R 19 mph (30 km/h) in drive program RACE
Button 0043flashes until the rear spoiler has
retracted and then goes out.
Extending and retracting the rear
spoiler manually G
WARNING
Body parts could become trapped if you man- ually extend/retract the rear spoiler. There is a risk of injury.
Make sure that nobody is within the range of
movement of the rear spoiler.
If someone becomes trapped during retrac-
tion of the rear spoiler, release the button
immediately. The rear spoiler then extends
again. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
! Do not enter an automatic car wash with the
rear spoiler extended. Otherwise, the rear
spoiler may be damaged.
Only extend the rear spoiler in order to clean
it by hand. Retract it again when you have fin-
ished cleaning it.
You can extend and retract the rear spoiler man- ually for cleaning.
X Close the trunk lid.
X Select key position 0048with the Start/Stop
button (Y page 111).
X To extend: press button 0043.
The rear spoiler is extended.
Button 0043flashes until the rear spoiler has
extended and then lights up in red.
X To retract: press and hold button 0043until the
rear spoiler is completely retracted.
Button 0043flashes until the rear spoiler has
retracted and then goes out.
Rear Spoiler Retracts Manually Rear Spoiler Retracts Manually
appears in the display.
If you release button 0043while retracting the rear
spoiler, it extends again automatically.
Problems with the rear spoiler Problem
Possible causes/consequences and
0050 0050Solutions The rear spoiler stops
before reaching the end
position when retracting
manually. You have opened the trunk lid while manually retracting the rear
spoiler.
X Close the trunk lid.
The rear spoiler extends or, if you press and hold the ¬button,
continues retracting. The rear spoiler stops
before reaching the end
position when retract-
ing/extending manually. You have switched off the ignition.
X Switch the ignition back on.
X Press the ¬button.
The rear spoiler extends/retracts. 230
FeaturesStowage and features

Problem
Possible causes/consequences and
0050
0050Solutions The rear spoiler cannot
be retracted again after
manually extending it. You have opened the trunk lid while manually extending the rear
spoiler.
X Close the trunk lid. The rear spoiler does not
extend or retract auto-
matically. The rear spoiler's movement is blocked, e.g. by an object jammed
between the body and the rear spoiler.
X Remove the object. Garage door opener
General notes The HomeLink
®
garage door opener integrated
in the rear-view mirror allows you to operate up
to three different door and gate systems.
Use the integrated garage door opener only on
garage doors that:
R they are equipped with a safety stop and
reverse feature
R they conform to the current U.S. safety stand-
ards
When it has been programmed, the integrated
garage door opener in the rear-view mirror will
assume the function of the garage door sys-
tem's remote control. Please also read the oper-
ating instructions for the garage door system.
When programming a garage door opener, park the vehicle outside the garage. Do not leave the
engine running while programming it.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage
door opener, contact a Mercedes-Benz Service
Center.
Alternatively, you can call the following tele-
phone assistance services:
R USA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
R Canada: Customer Service at
1-800-387-0100
R HomeLink ®
hotline 1-800-355-3515 (free of
charge)
More information on HomeLink ®
and/or com-
patible products is also available on the Internet
at http://www.homelink.com.
Notes on the declaration of conformity
(Y page 27).
USA: FCC ID: CB2HMIHL4 Canada: IC: 279B-HMIHL4
Important safety notes G
WARNING
When you operate or program the door with
the integrated garage door opener, persons in the range of movement of the door may
become trapped or be struck by the door.
There is a risk of injury.
When using the integrated garage door
opener, always make sure that nobody is
within the range of movement of the door. G
DANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases is hazardous to health
and can result in poisoning. There is a risk of
fatal injury. Therefore, never leave the engine running an enclosed space without adequate
ventilation.
Programming Programming the buttons
Pay attention to the "Important safety notes"
(Y page 231). Features
231Stowage and features Z

Engine compartment
Hood
Important safety notes G
WARNING
If the hood is unlatched, it may open up when the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving. Before
every trip, ensure that the hood is locked. G
WARNING
When opening and closing the hood, it may
suddenly fall into the closed position. There is a risk of injury to persons within range of
movement of the hood.
Open and close the hood only when no one is
within its range of movement. G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department. G
WARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There is a risk of injury.
If you need to do any work inside the engine
compartment:
R switch off the ignition
R never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches
R keep items of clothing and hair, for exam-
ple, away from moving parts G
WARNING
The ignition system and the fuel injection sys- tem work under high voltage. If you touch
components which are under voltage, you
could get an electric shock. There is a risk of
injury.
Never touch components of the ignition sys-
tem or fuel injection system when the ignition is switched on.
Opening the hood G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following. G
WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood. Engine compartment
235Maintenance and care Z

Display messages
Possible causes/consequences and
0050
0050Solutions Engine Oil Level
Engine Oil Level
Correct Correct
Measurement
Measurement
Only if Vehicle Is
Only if Vehicle Is
on Level Ground on Level Ground The vehicle is not parked on a level surface.
X Park the vehicle on a level surface. Engine Oil Level
Engine Oil Level
Not Measurable Not Measurable Oil level measurement with the oil dipstick is possible. The measuring
system is malfunctioning.
X Visit a qualified specialist workshop. Adding engine oil
G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following. G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to the environment.
! Use only engine oils and oil filters that are
approved for vehicles with a service system. A list of the engine oils and oil filters that have
been tested and approved in accordance with
Mercedes-Benz Specifications for Service
Products is available at any authorized
Mercedes-Benz Center. The following cause engine failure or damage
to the exhaust system:
R Use of engine oils and oil filters that have
not been expressly approved for the service
system
R Replacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
R Use of engine oil additives
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off. Example: engine oil cap
X Turn cap 0043counter-clockwise and remove it.
X Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil.
X Replace cap 0043on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
X Check the oil level again with the oil dipstick
(Y page 236).
Further information on engine oil (Y page 291).238
Engine compartmentMaintenance and care

Additional service products
Checking coolant level G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following. G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department. G
WARNING
The cooling system is pressurized, particularly when the motor is warm. If you open the cap, you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear protective gloves and protective
eyewear when opening. Open the cap slowly
to release pressure.
! Before starting your journey, make sure that
all engine covers are installed. Otherwise, the engine can be damaged, e.g. through over-
heating. Example
X Park the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Select key position 0048with the Start/Stop
button.
X Check the coolant temperature display in the
instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Select key position 0092with the Start/Stop
button.
X Remove engine cover 0043upwards on both
sides.
X Slowly turn cap 0044half a turn counter-clock-
wise to allow excess pressure to escape.
X Turn cap 0044further counter-clockwise and
remove it.
If the coolant is at the level of the marker bar in the filler neck when cold, there is enough
coolant in coolant expansion tank 0087.
If the coolant level is approximately 0.6 in
(1.5 cm) above the marker bar in the filler
neck when warm, there is enough coolant in
coolant expansion tank 0087.
X If necessary, add coolant that has been tested
and approved by Mercedes-Benz. Engine compartment
239Maintenance and care Z

X
Replace cap 0044and turn it clockwise as far as
it will go.
X Replace engine cover 0043.
For further information on coolant, see
(Y page 292).
Windshield washer system G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following. G
WARNING
Windshield washer concentrate is highly flam- mable. If windshield washer concentrate getsonto hot components of the engine or the
exhaust system, it can ignite. There is a risk of
fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck. Example
X To open: pull cap0043upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap 0043onto the filler neck
until it engages.
If the washer fluid level drops below the recom- mended minimum of 1 liter, a message appears
in the multifunction display prompting you to
add washer fluid (Y page 197). Further information on windshield washer fluid/
antifreeze (Y page 292). ASSYST PLUS
Service message
i If the scheduled service intervals are excee-
ded, this may result in damage to the vehicle.
You can obtain up-to-date information concern-
ing the servicing of your vehicle from a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Service Center or at
http://www.mbusa.com (USA only).
The ASSYST PLUS service interval display
informs you of the next service due date.
i The ASSYST PLUS service interval display
does not show any information on the engine oil level. Observe the notes on the engine oil
level (Y page 236).
The multifunction display shows a service mes-
sage for several seconds, e.g.: R Service A in XX Days Service A in XX Days
R Service A Due
Service A Due
R Service A Overdue by XX Days
Service A Overdue by XX Days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter A Aor B
B, possibly in connection with a
number or another letter, shows the type of ser-
vice. A
Astands for a minor service and B
Bfor a
major service.
You can obtain further information from an
authorized Mercedes-Benz Service Center.
The ASSYST PLUS service interval display does
not take into account any periods of time during
which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. 240
ASSYST PLUSMaintenance and care

drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a
long period of time.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz. Washing the vehicle and cleaning the
paintwork
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! When Active Brake Assist, Active Distance
Assist DISTRONIC or the HOLD function is
activated, the vehicle brakes automatically in
certain situations.
To avoid damage to the vehicle, deactivate
these systems in the following or similar sit-
uations:
R when towing the vehicle
R in the car wash
! Preferably use automatic car washes with
adjustable high-pressure pre-cleaning. This
corresponds with the specification for the
Cabriolet program. In car washes that use
high water pressures, there is a risk that a
small amount of water may leak into the vehi- cle.
! Make sure that the vehicle is not subse-
quently treated with hot wax.
! Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
If you have your vehicle cleaned in a high-
pressure automatic car wash, small amounts of water may enter the vehicle. !
If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk lid:
R when using an automatic car wash
R when using a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
! Make sure that:
R the side windows are fully closed
R the blower of the ventilation/heating sys-
tem is switched off
R the windshield wiper switch is at position
003F
R the rear-view camera is deactivated
The vehicle may otherwise be damaged.
! When washing your vehicle in a tow-through
car wash, use the SmartKey instead of the
Start/Stop button.
Start the engine using the SmartKey. Set the
transmission to 005Cwith the E-SELECT selec-
tor lever. Switch the engine off again with the SmartKey by turning the SmartKey to position
0048. Make sure that you then leave the Smart-
Key in position 0048. You may otherwise dam-
age the vehicle, the transmission or the car
wash.
Check the transmission position in the instru-
ment cluster.
! Before switching off the engine, use the
E‑SELECT lever to shift the transmission to
005C. If you open the driver's or front-passenger
door, the transmission remains in this posi-
tion for up to 30 minutes if the key is in the
ignition, even if the engine is switched off. If
you do not shift the transmission to 005Cusing
the E‑SELECT lever beforehand, it shifts auto-
matically to parking position 005Dand locks the
wheels if the driver's or front-passenger door
is opened when the engine is switched off.
This may damage the vehicle, the transmis-
sion or the car wash.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax from the windshield and the wiper blades. This
will prevent smears and reduce wiping noises
caused by residue on the windshield. 242
CareMaintenance and care

R
lug wrench
R alignment bolt The vehicle tool kit is located on the left side of
the trunk in the stowage compartment behind
service flap 0043or in the stowage compartment
under trunk floor 0044.
The vehicle tool kit is located on the left side of the trunk in the stowage compartment behind
service flap 0043or in the stowage compartment
under trunk floor 0044.
The towing eye is on the left side of the trunk in
the stowage compartment under trunk floor 0044.
To open the stowage compartment under trunk floor 0044, pull the sewed-on tab.
Vehicles with a tire-change tool kit Example
0043 Folding wheel chock
0044 Alignment bolt
0087 Lug wrench
0085 Towing eye
0083 Jack
The tire-change tool kit is located on the left side of the trunk in the stowage compartment under the trunk floor. Please note that there can be equipment- and
country-specific deviations for vehicles with a
tire-change tool kit.
Depending on the equipment, tools required for
a wheel change, such as a jack or a lug wrench, are not available in all vehicles. Tools approved
for your vehicle are available at a qualified spe-
cialist workshop.
Vehicles with a TIREFIT kit Example
0043 Tire inflation compressor
0044 Tire sealant filler bottle
The TIREFIT kit is located on the left side of the
trunk in the stowage compartment behind the
service flap.
Removing:
X Open the trunk lid.
X Turn the fastener on the service flap counter-
clockwise.
X Open the service flap.
X Use the TIREFIT kit (Y page 251). Flat tire
Preparing the vehicle
Your vehicle may be equipped with: R a TIREFIT kit (Y page 249)
Vehicles with an mbrace system (USA only)
which are not equipped with a TIREFIT kit: in the event of a flat tire, contact the Customer Assis-
tance Center for the mbrace emergency call
system (Y page 223).
Information on changing and mounting wheels
(Y page 281). 250
Flat tireBreakdown assistance