2018 MERCEDES-BENZ AMG GT COUPE check engine light

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield wiper
movement. The wiper motor has been deactivated.
XSwitch off the engine using the Start/Stop button and open the
driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist workshop.
The wiper arms are on
the windshield.The wiper arms have been moved by an external force.
XSelect key position2with the Start/Stop button.
The wiper arms move back down automatically.
Windshield wipers97
Lights and windshield wipers
Z

!Do not warm up the engine while stationary.
Pull away immediately. Avoid high engine
speeds and full throttle until the engine has
reached its operating temperature.
In vehicles with automatic transmission,
engage positions P and R only when the vehi-
cle is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
!During a cold start with low engine oil tem-
peratures (below 32 ‡) (0 †), the maximum
engine speed is restricted in order to protect
the engine. To protect the engine and main-
tain smooth engine operation, avoid driving at
full throttle when the engine is cold.
Key positions
Start/Stop button
General notes
All vehicles are equipped with a Start/Stop but-
ton.
The Start/Stop button is located in the center
console and is illuminated when the vehicle is
unlocked.
The SmartKey must be in the vehicle.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
If there is a SmartKey in the ignition lock, this
takes precedence over the KEYLESS-GO start
function.
To start the vehicle without actively using the
SmartKey:
Rthe SmartKey must be in the vehicle
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO (Ypage 66) Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey
Rwith metallic objects, e.g. coins or metal foil
Rinside metallic objects, e.g. a metal case
This can affect the functionality of the Smart-
Key.
If you lock the vehicle with the SmartKey remote control or with KEYLESS-GO, after a short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button
Ryou will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again
If you lock the vehicle centrally using the button
on the driver's door (
Ypage 71), you can con-
tinue to start the engine with the Start/Stop
button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with the Start/Stop button
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. Further information on situations where an
indicator lamp either fails to go out after starting
the engine or lights up while driving
(
Ypage 195).
If Start/Stop button :has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
XTo switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now
activate the windshield wipers, for example. If you press Start/Stop button :twice in this
Driving105
Driving and parking
Z

ProblemPossible causes/consequences andMSolutions
The engine is not running
smoothly and is misfir-
ing.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
XHave the cause rectified immediately at a qualified specialist work-
shop.
The coolant temperature
display shows a value
above 248 ‡ (120 †).The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 236). Observe the warning notes
as you do so and add coolant if necessary.
DYNAMIC SELECT controller
General information
Select the drive program using the DYNAMIC
SELECT controller.
Available drive programs:
C ComfortComfort-oriented, optimum-
economy engine and trans-
mission settings
SSportSporty engine and transmis-
sion settings
S+ Sport PlusEspecially sporty engine and
transmission settings
RACE
(AMG GT S and
AMG GT C)Maximum sportiness and
engine and transmission
settings suitable for the
racetrack
IIndividualIndividual settings
In urban traffic and stop-start traffic, drive pro-
gram Cis recommended.
Depending on the drive program selected the
following vehicle characteristics will change:
Rthe drive (engine management)
Rthe transmission management
RESP®(Ypage 61)
Rthe suspension (Ypage 142)
Rthe position of the exhaust flap
(Ypage 109)
Rthe availability of the ECO start/stop function (Ypage 108)
Rthe availability of gliding mode
(Ypage 115)
Further information for automatic drive program
characteristics (
Ypage 117).
Additionally, in drive program Iyou can config-
ure the respective vehicle characteristics using
the multimedia system. You can find informa-
tion about this in the Digital Operator's Manual.
Each time you start the engine with the Smart-
Key or the Start/Stop button, drive program Cis
activated. Further information about starting
the engine (
Ypage 106).
Selecting the drive program
XTurn DYNAMIC SELECT controller :until the
desired drive program is selected.
The selected drive program appears in the
multifunction display. After five seconds the
DYNAMIC SELECT controller111
Driving and parking
Z

XDepress the brake pedal and keep it
depressed.
XShift to neutrali.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch the ignition off.
XTurn the SmartKey to position 2and leave it
in the ignition lock.
You can find further information under "Car
wash" (
Ypage 239).
Shifting to transmission position D
XStart the engine (Ypage 107).
XMake sure that the vehicle is stationary.
XDepress the brake pedal and keep it
depressed.
XPush the E-SELECT lever back past the first
point of resistance.
The automatic transmission shifts to h.
If the vehicle is braked to a standstill with the
transmission in position h, the ECO start/stop
function switches off the engine automatically
(
Ypage 108).
Transmission position and drive pro-
gram display
The current transmission position and drive pro-
gram appear in the multifunction display.
:Drive program
;Transmission position
Additionally, displays next to the E ‑SELECT lever
show the current transmission position.
The displays light up if you:
Rswitch on the power supply with the Start/
Stop button (Ypage 105) or
Rinsert the SmartKey into the ignition lock
(Ypage 106). The displays go out if you:
Rswitch off the power supply with the Start/
Stop button (Ypage 105) or
Rremove the SmartKey from the ignition lock
(Ypage 106).
If the transmission position display in the mul-
tifunction display is not working, check on the
display next to the E-SELECT lever whether the
desired transmission position is engaged.
Transmission positions
BPark position
This prevents the vehicle from rolling
away when stopped.
Only shift the transmission into posi-
tion j(
Ypage 112) when the vehi-
cle is stationary. The parking lock
should not be used as a brake when
parking. Always apply the electronic
parking brake in addition to the park-
ing lock in order to secure the vehi-
cle.
The automatic transmission shifts to j automatically if you:
Rremove the SmartKey
Rswitch off the engine when in kor
h and open the driver's door or
front-passenger door
Ropen the driver's door while trav-
eling at low speeds in transmission position hork
In the event of a malfunction of the
vehicle's electronics, the transmis-
sion may lock in position j. Have
the vehicle electronics checked
immediately at a qualified specialist
workshop.
CReverse gear
Only shift the transmission into posi-
tion kwhen the vehicle is station-
ary.
114AMG SPEEDSHIFT DCT 7-speed sports transmission
Driving and parking

Observe the following rules when driving on salt-
treated roads:
RIn order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately. Consult a qualified specialist workshop to
arrange this.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Ypage 58).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake pads/
linings on an axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched. The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for
your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard. Brake
fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
AMG high-performance and ceramic
brakes
The AMG brake systems are designed for heavy
loads. This may lead to noise when braking. This
will depend on:
RSpeed
RBraking force
REnvironmental conditions, such as tempera-
ture and humidity
The wear of individual components of the brake
system, such as the brake pads/linings or brake
discs, depends on the individual driving style
and operating conditions.
For this reason, it is impossible to state a mile-
age that will be valid under all circumstances. An aggressive driving style will lead to high wear.
You can obtain more information on this from a
qualified specialist workshop.
New and replaced brake pads and discs only
reach their optimum braking effect after several
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
Keep this in mind, and adapt your driving and
braking accordingly during this break-in period.
Excessive heavy braking results in correspond-
ingly high brake wear. Observe the brake wear
warning lamp in the instrument cluster and note
any brake status messages in the multifunction
display. Especially for high performance driving,
it is important to maintain and have the brake
system checked regularly.
128Driving tips
Driving and parking

RDistance Pilot DISTRONIC (Ypage 131)
RDistance warning function of Active Brake
Assist (Ypage 58)
RBlind Spot Assist (Ypage 150)
RATTENTION ASSIST (Ypage 148)
RLane Keeping Assist (Ypage 152)
XPress:to display the ATTENTION ASSIST
assessment.
Service menu
Depending on the equipment installed in the
vehicle, you have the following options in the
Service
menu:
Rcalling up display messages in message mem- ory (Ypage 169)
Rchecking the tire pressure electronically
(Ypage 265).
Rcalling up the service due date (Ypage 238).
Rchecking the engine oil level using the on-
board computer (Ypage 234).
Settings menu
Introduction
Depending on the equipment installed in the
vehicle, you have the following options in the
Settings
menu:
Rchanging assistance settings (Ypage 163).
Rchanging the light settings (Ypage 164).
Rchanging the instrument cluster settings
(Ypage 164).
Rrestoring the factory settings (Ypage 165).
Assistance submenu
Activating/deactivating Active Brake
Assist
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the DriveAs‐sistsubmenu.
XPressato confirm.
XSelect Brake Assistwith9 or:.
XPress ato confirm.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
When Active Brake Assist is deactivated, the
æ symbol appears in the Assistance
Graphicmenu of the multifunction display.
Further information on Active Brake Assist
(
Ypage 58).
Activating/deactivating Blind Spot Assist
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the DriveAs‐sistsubmenu.
XPressato confirm.
XPress :or9 to select Blind SpotAssist.
XPressato confirm.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
When Blind Spot Assist is activated, gray
radar waves propagating backwards appear
next to the vehicle in the Assistance
Graphicmenu in the multifunction display.
For further information about Blind Spot Assist,
see (
Ypage 150).
Setting ATTENTION ASSIST
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the DriveAs‐sistsubmenu.
XPressato confirm.
XSelect Attention Assistwith: or
9.
XPress ato confirm.
Menus and submenus163
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th ered $ brakesystem warning lamp also lights up while
th eengin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XHaveth embrace system checke dimmediately at aqualified spe -
cialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis tis temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis tis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XRestart th eengine.
Display messages17 5
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
#
See Operator'sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XConsult aqualified specialist workshop .
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th econdition of charg eis
to olow.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XObserv eth einstruction sin th e# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
#
Start Engine SeeOperator'sManual
The engin eis off and th ebattery condition of charg eis to olow.
XSwitc hoff electrical consumer sthat you do no tneed, suc has th e
rear window defroste rand interior lighting .
XLeaveth eengin erunnin gfor afew minute sor drive alon gdistance.
The battery is bein gcharged.
4
Check Engine OilLevel (Ad d 1quart)
The engin eoil level has dropped to th eminimum level.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 233).
XIf necessary, add engin eoil (Ypage 235).
XHav eth eengin echecke dat aqualified specialist workshop if engin e
oil needs to be added mor eoften than usual.
Information on approve dengin eoils can be obtained from aqualified
specialist workshop or on th eInternet at http://bevo.mercedes -
benz.co m.
4
Engine Oil LevelLow Stop VehicleTurn Engine Off
The engine oil level is too low. There is a risk of engine damage.
XPull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 122).
XCheck the engine oil level (Ypage 233).
XIf necessary, add engine oil (Ypage 235).
182Display messages
On-board computer and displays