2018 MERCEDES-BENZ AMG GT COUPE stop start

Rear spoiler
Overview
The rear spoiler improves the handling of the
vehicle. It adapts the vehicle's aerodynamics to the operating conditions, dependent on the
speed of the vehicle.
Only use button :to extend and retract the
rear spoiler manually for cleaning.
Button :is not used to operate the rear spoiler.
The rear spoiler is extended automatically if you
drive faster than:
R75 mph (120 km/h) in drive programs C,S
and S+
R44 mph (70 km/h) in drive program RACE
Button :flashes until the rear spoiler has
extended and then lights up in red.
The rear spoiler is retracted automatically when
you drive slower than:
R50 mph (80 km/h) in drive programs C,S and
S+
R19 mph (30 km/h) in drive program RACE
Button :flashes until the rear spoiler has
retracted and then goes out.
Extending and retracting the rear
spoiler manually
GWARNING
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.
XClose the tailgate.
XSelect key position 2with the Start/Stop
button (Ypage 106).
XTo extend: press button :.
The rear spoiler is extended.
Button :flashes until the rear spoiler has
extended and then lights up in red.
XTo retract: press and hold button :until the
rear spoiler is completely retracted.
Button :flashes until the rear spoiler has
retracted and then goes out.
Rear Spoiler Retracts Manually
appears in the display.
If you release button :while retracting the rear
spoiler, it extends again automatically.
226Features
Stowage and features

of movement of it. Release the switch imme-
diately if somebody becomes trapped. The
active aerodynamics profile then extends
again.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Take the restricted ground clearance into
account when the active aerodynamics pro-
file is extended.
You can extend and retract the active aerody-
namics profile manually for cleaning.
XSelect key position 2with the Start/Stop
button (Ypage 106).
XTo extend: press and hold button :until the
active aerodynamics profile is fully extended.
Button :flashes until the active aerodynam-
ics profile has extended and then lights up in
red. Extending Spoilers Press and Hold
Switchappears in the display.
XTo retract:
press and hold button :until the
active aerodynamics profile is fully retracted.
Button :flashes until the active aerodynam-
ics profile has retracted and then goes out.
Retracting Spoilers Press and Hold
Switchappears in the display.
If you release button :while retracting the
active aerodynamics profile, retracting stops.
Retracting continues when you press the button
again.
If you release button :while extending the
active aerodynamics profile, extending stops.
Extending continues when you press the button
again.
Problems with the active aerodynamics profile
ProblemPossible causes/consequences and MSolutions
The active aerodynamics
profile stops moving
when retracting or
extending manually.You have switched off the ignition.
XSwitch the ignition back on.
XPress button:.
The active aerodynamics profile then retracts or extends.
The active aerodynamics
profile does not extend
manually.The active aerodynamics profile can only be retracted or extended
manually when the vehicle is stationary and position jis engaged.
The active aerodynamics profile retracts automatically, as soon as the
vehicle starts moving.
The active aerodynamics
profile does not retract
or extend automatically.The active aerodynamics profile's movement is blocked, e.g. by a
trapped object.
XRemove 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:
Rhave safety stop and reverse features and
Rmeet current U.S. federal safety standards Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote
control. Please also read the operating instruc-
tions for the garage door system.
When programming a garage door opener, park
the vehicle outside the garage. Do not run the
engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage
228Features
Stowage and features

door opener, contact a Mercedes-Benz Service
Center.
Alternatively, you can call the following tele-
phone assistance services:
RUSA:Mercedes-Benz Customer Assistance
Center at 1-800 FOR-MERCEDES
RCanada: Customer Service at
1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free of
charge)
More information on HomeLink
®and/or com-
patible products is also available online at
http://www.homelink.co m.
Notes on the declaration of conformity
(
Ypage 27).
USA: FCC ID: CB2HMIHL4
Canada: IC: 279B-HMIHL4
Important safety notes
GWARNING
When you operate or program the garage door
with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage 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 garage
door.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Programming
Programming the buttons
Pay attention to the "Important safety notes"
(Ypage 229).
Garage door remote control Ais not included
with the integrated garage door opener.
XSelect SmartKey position 2with the Start/
Stop button (Ypage 106).
XSelect one of buttons ;to? to use to con-
trol the garage door drive.
XTo start programming mode: press and
hold one of buttons ;to? on the integrated
garage door opener.
The garage door opener is now in program-
ming mode. After a short time, indicator
lamp :lights up yellow.
Indicator lamp :lights up yellow as soon as
button ;,=or? is stored for the first time.
If the selected button has already been pro-
gramed, indicator lamp :will only light up
yellow after ten seconds have elapsed.
XRelease button ;,=or?. Indicator
lamp :flashes yellow.
XTo program the remote control: point
garage door remote control Atowards but-
tons ;to? on the rear-view mirror at a dis-
tance of 2 to 8 in (5 to 20 cm).
XPress and hold button Bon remote control
A until indicator lamp :lights up green.
When indicator lamp :lights up green: pro-
gramming is finished.
When indicator lamp :flashes green: pro-
gramming was successful. The next step is to
synchronize the rolling code (
Ypage 230).
XRelease button Bon remote control Afor
the garage door drive system.
If indicator lamp :lights up red: repeat the
programing procedure for the corresponding
button on the rear-view mirror. When doing
so, vary the distance between remote control
A and the rear-view mirror.
The required distance between remote con-
trol Aand the integrated garage door opener
depends on the garage door drive system.
Features229
Stowage and features
Z

Several attempts might be necessary. You
should test every position for at least
25 seconds before trying another position.
Synchronizing the rolling code
Pay attention to the "Important safety notes"
(Ypage 229).
If the garage door system uses a rolling code,
you will also have to synchronize the garage
door system with the integrated garage door
opener in the rear-view mirror. To do this you will
need to use the programming button on the door
drive control panel. The programming button
may be located in different places depending on
the manufacturer. It is usually located on the
door drive unit on the garage ceiling.
Familiarize yourself with the garage door drive
operating instructions, e.g. under "Program-
ming additional remote controls", before carry-
ing out the following steps.
Your vehicle must be within reach of the garage
door or gate opener drive. Make sure that nei-
ther your vehicle nor any persons/objects are
present within the sweep of the door or gate.
XSelect SmartKey position 2with the Start/
Stop button (Ypage 106).
XGet out of the vehicle.
XPress the programming button on the door
drive unit.
You now have 30 seconds to initiate the next
step.
XGet into the vehicle.
XPress previously programed button ;,=
or ? on the integrated garage door opener
repeatedly until the door closes.
The rolling code synchronization is then com- plete.
Notes on programming the remote con-
trol
Canadian radio frequency laws require a "break"
(or interruption) of the transmission signals
after broadcasting for a few seconds. Therefore,
these signals may not last long enough for the
integrated garage door opener. The signal is notrecognized during programming. Comparable
with Canadian law, some U.S. garage door open-
ers also feature a "break". Proceed as follows:
Rif you live in Canada.
Rif you have difficulties programming the
garage door opener (regardless of where you
live) when following the programming steps.
XPress and hold one of buttons
;to? on the
integrated garage door opener.
After a short time, indicator lamp :lights up
yellow.
XRelease the button.
Indicator lamp :flashes yellow.
XPress button Bof garage door remote con-
trol Afor two seconds, then release it for two
seconds.
XPress button Bagain for two seconds.
XRepeat this sequence on button Bof remote
control Auntil indicator lamp :lights up
green.
When indicator lamp :lights up green: pro-
gramming is finished.
When indicator lamp :fl
ashes green: pro-
gramming was successful. The next step is to
synchronize the rolling code.
XRelease button Bof remote control Aof the
garage door drive.
When indicator lamp :lights up red: repeat
the programming process for the correspond-
ing button on the rear-view mirror. When
doing so, vary the distance between remote
control Aand the rear-view mirror.
The required distance between remote con-
trol Aand the integrated garage door opener
depends on the garage door drive system.
Several attempts might be necessary. You
should test every position for at least
25 seconds before trying another position.
Problems when programming
If you are experiencing problems programming
the integrated garage door opener on the rear-
view mirror, take note of the following instruc-
tions:
RCheck the transmitter frequency used by
garage door drive remote control Aand
whether it is supported. The transmitter fre-
quency can usually be found on the back of
remote control Afor the garage door drive.
The integrated garage door opener is com-
patible with devices that have units which
230Features
Stowage and features

operate in the frequency range of 280 to
433 MHz.
RReplace the batteries in garage door remote
controlA. This increases the likelihood that
garage door remote control Awill transmit a
strong and precise signal to the integrated
garage door opener.
RWhen programming, hold remote control A
at varying distances and angles from but-
tons ;to? which you are programming. Try
various angles at a distance between 2and
8 inches (5to 20 cm) or at the same angle but
at varying distances.
RIf a further remote control Ais available for
the same garage door drive, repeat the same
programming steps with this remote control
A. Before performing these steps, make sure
that new batteries have been installed in
garage door drive remote control A.
RNote that some remote controls only transmit
for a limited amount of time (the indicator
lamp on the remote control goes out). Press
buttonBon remote control Aagain before
transmission ends.
RAlign the antenna cable of the garage door
opener unit. This can improve signal recep-
tion/transmission.
Opening/closing the garage door
After it has been programmed, the integrated
garage door opener performs the function of the
garage door system remote control. Please also
read the operating instructions for the garage
door system.
XSelect key position 2with the Start/Stop
button (Ypage 106).
XPress button ;,=or? which you pro-
grammed to operate the garage door.
Garage door system with a fixed code: indi-
cator lamp :lights up green.
Garage door system with a rolling code: indi-
cator lamp :flashes green.
The transmitter will transmit a signal as long
as the button is pressed. The transmission is
halted after a maximum of ten seconds and
indicator lamp :lights up yellow.
XPress button ;,=or? again if necessary.
Clearing the memory
Make sure that you clear the memory of the
integrated garage door opener before selling the
vehicle.
XSelect key position 2with the Start/Stop
button (Ypage 106).
XPress and hold buttons ;and ?.
Indicator lamp :initially lights up yellow and
then green.
XRelease buttons ;and ?.
The memory of the integrated garage door
opener in the rear-view mirror is cleared.
Floormats
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
XSlide the driver's seat backwards.
XTo install: place the floormat in position.
XPress studs :onto retainers ;.
XTo remove:pull the floormat off retainers ;.
XRemove the floormat.
Features231
Stowage and features
Z

XPull oil dipstick:out of the dipstick guide
tube.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;, the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) engine oil.
Checking the oil level using the on-board computer
Calling up the oil level measurement
XSelect key position 2with the Start/Stop button.
XUse ò on the steering wheel to call up the list of menus.
XPress the :or9 button on the steering wheel to select the Servicemenu.
XConfirm by pressingaon the steering wheel.
XUse: or9 to select the Engine Oil Levelsubmenu.
XPressato confirm the selection.
The Measuring Engine Oil Level Accurate Only When Vehicle Is Levelmessage
appears in the multifunction display.
The measurement takes a few seconds. You will see a message in the multifunction display. The
messages are explained in the following chapter.
Engine oil level display messages
Display messagesPossible causes/consequences and MSolutions
Engine Oil Level OKThe engine oil level is correct.
Check Engine OilLevel (Add 1 Liter)
The engine oil level is too low.
XAdd 1.1 US qt (1.0 liter) of engine oil.
Reduce Engine OilLevel
The engine oil level is too high.
XHave excess engine oil siphoned off.
For Engine OilLevelIgnitionMustBe On
The ignition is switched off.
XSelect key position2with the Start/Stop button.
Need More Time toCheck Engine OilLevel
The required waiting period was not observed.
XThe engine must be at regular operating temperature.
Measurements can only be taken within the first four minutes after
the engine has been switched off.
Engine Oil LevelNotMeasurablewithEngine Running
The engine is running; oil level measurement is not possible.
XSwitch off the engine.
XRepeat the measurement. Observe the required waiting period.
234Engine compartment
Maintenance and care

XAffix part:of the TIREFIT sticker to the
instrument cluster within the driver's field of
vision.
XAffix part ;of the TIREFIT sticker near the
valve on the wheel with the defective tire.
:Tire sealant filler bottle
;Recess
=On/off switch
?Connector
AHose
BFlange
XPull connector ?with cable and hose Aout
of the tire inflation compressor housing.
XPush connector on hose Ainto flange Bon
tire sealant bottle :until the connector
engages.
XPlace tire sealant bottle :head down into
recess ;of the tire inflation compressor.
XRemove the cap from valve Con the faulty
tire.
XScrew filler hose Donto valve C.
XInsert connector ?into cigarette lighter
socket (Ypage 218) or into another 12 V
socket in your vehicle (Ypage 218).
XSwitch on the ignition with the Start/Stop
button.
or
XTurn the SmartKey to position 1in the igni-
tion lock (Ypage 106).
XPress on/off switch =on the tire inflation
compressor.
The tire inflation compressor is switched on.
The tire is inflated.
First, tire sealant is pumped into the tire. The
pressure may briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the tire inflation com-
pressor during this phase.
XLet the tire inflation compressor run for a
maximum of ten minutes. The tire should then
have attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a pressure of 180 kPa (1.8 ba r/26 psi) has
been at tained after five minutes, see "Tire pres-
sure reached" (
Ypage 249).
If a tire pressure of 180 kPa (1.8 bar/26 psi) has
not been attained after five minutes, see "Tire
pressure not reached" (
Ypage 248).
If tire sealant has escaped, clean it off affected
areas as quickly as possible. It is preferable to
use clean water.
If your clothes ar e s
oiled with tire sealant, have
them cleaned with perchloroethylene at a dry
cleaner as soon as possible.
Tire pressure not reached
If a pressure of 180 kPa (1.8 bar/26 psi) has not
been attained after five minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
Tire sealant may escape when the filler hose is
unscrewed.
XVery slowly drive forwards or reverse approx- imately 30 ft (10 m).
XPump upthe tire again.
After a maximum of ten minutes, the tire pres-
sure must be at least 180 kPa (1.8 ba r/
26 psi) .
248Fla t tire
Breakdown assis tance

Towing and tow-starting
Important safety notes
GWARNING
The rear axle locks when:
Rthe engine is not running
Rthe engine stalls while the vehicle is being
towed
Rthere is a malfunction in the power supply
or the vehicle's electrical system
There is a risk of an accident.
In the event of a breakdown, you should
always have the vehicle transported.
GWARNING
If the brake system or power steering is mal-
functioning and your vehicle is then towed
away, significantly more effort may be
required to steer and brake than is normally
required. There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
GWARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
Rthe towing eye could detach itself
Rthe vehicle/trailer combination could roll-
over.
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per- missible gross weight of your vehicle.
Details on the permissible gross vehicle weight
of your vehicle can be found on the vehicle iden-
tification plate (
Ypage 282).
!Use the SmartKey instead of the Start/Stop
button when towing the vehicle.
Start the engine and keep it running. The
SmartKey is in position 2in the ignition lock.
Set the transmission to iusing the E-
SELECT selector lever. Make sure that you
then leave the SmartKey in position 2.Check the transmission position in the instru-
ment cluster.
!Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
!Secure the tow rope or tow bar to the towing
eye only. Otherwise, the vehicle could
become damaged.
!When Active Brake Assist, Distance Pilot
DISTR ONIC 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:
Rwhen towing the vehicle
Rin the car wash
!Do not use the towing eyes for recovery pur-
poses as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
!When towing, pull away slowly and
smoothly. If the tractive power is too high, the
vehicles could be damaged.
!Shift the automatic transmission to position
i and do not open the driver's or front-
passenger door when towing the vehicle
away. Otherwise, the automatic transmission
may shift to position jwhich can cause
damage to both vehicles.
!Do not tow with sling-type equipment. This
could damage the vehicle.
!The vehicle can be towed a maximum of
30 miles (50km). The towing speed of 30 mph
(50 km/h) must not be exceeded.
If the vehicle has to be towed more than
30 miles (50km), the entire vehicle must be
raised and transported.
!Observe the transmission fluid temperature
(AMG menu) in the on-board computer when
towing. The transmission fluid temperature
must not exceed 250 ‡ (
120 †). If this
occurs, you must stop towing immediately.
!Tow-starting the vehicle is not permitted.
The transmission may otherwise be damaged.
254Towing and tow-starting
Breakdown assistance