2018 MERCEDES-BENZ AMG GT COUPE oil

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

Display messagesPossible causes/consequences andMSolutions
4
Engine Oil ReduceOil Level
You haveadded to omuc hengin eoil. The engin eor catalytic converter
may be damaged.
XSiphon off excess engin eoil until it is at th especified level. Observ e
th elegal requirements .
4
Engine Oil LevelCannot Be Measured
The measuringsystem is faulty.
XVisit aqualified specialist workshop .
8
FuelLevel Low
The fuel level has dropped int oth ereserv erange.
XRefue lat th eneares tgas station .
CThere is only aver ysmall amount of fuel in th efuel tank.
XRefue lat th eneares tgas station without fail .
8
Gas Cap Loose
The fuel filler cap is notclosed correctl yor th efuel system is leaking .
XCheckthat th efuel filler cap is correctl yclosed .
If th efuel filler cap is not correctl yclosed :
XCloseth efuel filler cap .
If th efuel filler cap is correctl yclosed :
XVisitaqualified specialist workshop .
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
ATTENTION ASSIST:Take a Break!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
a lack of concentration on th epart of th edriver . Awarning tone also
sounds.
XIf necessary, tak e abreak.
During lon gjourneys, tak eregular breaks in goo dtime so you get
enough rest.
À
ATTENTION ASSISTInoperative
ATTENTION ASSIST is inoperative.
XVisit aqualified specialist workshop .
¨
Malfunction
There isamalfunction in th echassis. The vehicle's handlin gcharac -
teristics may be affected.
XVisit aqualified specialist workshop .
Display messages183
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ReversingNotPossi‐bleServiceRequiredThe sub-transmission wit hth eeve ngear shas failed. You can no longer
engage revers egear .The smoothness of th egear chang eis restricted.
The transmission is in emergenc ymode.
A warning tone also sounds.
XVisit aqualified specialist workshop .
Transmission Mal‐function StopAmalfunction has occurred in th emechanical transmission compo -
nents.
A warning tone also sounds. The transmission shift sautomatically to
position i.
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th eselector lever to position j.
XSecureth evehicl eagainst rollin gaway (Ypage 122).
XNotify aqualified specialist workshop or breakdown service.
Depres sBrake toStart EngineYou canno tstart th eengine. The engin ehas been switched off in hor
k.
XDepress th ebrak epedal and start th eengine.
Onl yShift to 'P'whe nVehicl eisSta‐tionar y
The vehicl eis moving .
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position j.
j
ParkingLoc kMal ‐funct. Apply Park‐ing Brake
The transmission position jcanno tbe selected.
XMak esur ethat th eelectric parking brak eis applied.
XPreven tth evehicl efrom rollin gaway before you leav eit
(Ypage 277).
XVisit aqualified specialist workshop .
d
Transmission OilCoolingMalfunction
The transmission coolan tpump is faulty. The transmission may over-
heat .
XIn th eon-boar dcomputer, select th eAMGmen uand chec kth e
transmission oil temperature (Ypage 165).
XAvoid excessive loading,e.g. due to dynamic driving.
XIf th etransmission oil temperature is belo w24 8°F (12 0°C) ,drive
on to th eneares tqualified specialist workshop .
d
Trans. Oil Overhea‐ted Drive on withCare
The transmission oil has overheated.
Manual mod eM and temporar ymanual drive progra mare no longer
available. Only th eComfor tdrive progra mis available for th etrans -
mission .The engin eoutput is reduce daccording to th edegree of
overheating .
XAllow thetransmission oil to cool by adopting adefensiv edrivin g
style.
Display messages18 9
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ElectronicRea rAxleDifferentialLoc kInoperative
The electronic rear axl edifferential loc kis inoperative.
XVisit aqualified specialist workshop .
ElectronicRea rAxleDifferentialLoc kCurrentlyUnavailable
The electronic rear axl edifferential loc kmotor has overheated.
XAllow electronic rear axl edifferential loc kto cool by adopting a
defensiv edrivin gstyle.
NThe tailgat eis open
GWARNIN G
Whe nth eengin eis running, exhaust gase scan ente rth evehicl einte-
rio rif th etailgat eis open .
There is aris kof poisoning .
XCloseth etailgate.
MThe hoo dis open . Awarning tone also sounds.
GWARNIN G
The open hoo dmay bloc kyour vie wwhen th evehicl eis in motion .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XCloseth ehood.
CAt least on edoor is open . Awarning tone also sounds.
XClos eall th edoors.
Rea rSpoile rCon ‐trolSystem Inoper ‐ative
The rear spoiler canno tbe full yretracte dand may extend again .
If th eretraction of th erear spoiler is blocked, e.g. by ice :
XMakesur ethat th ecaus eof th ebloc kis eliminated.
XSwitc hoff th eengin eand loc kth evehicle.
XStart th evehicl eafter waiting afew minutes.
The rear spoiler return sto th eoriginal position .
If this problem persists or th ecaus ecanno tbe identified:
XVisit aqualified specialist workshop .
190Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Inoperative Cau‐tion, ReducedGround Clearance
!Taketh erestricted ground clearance int oaccoun twhen th eactive
aerodynamic sprofile is extended.
The active aerodynamic sprofile canno tfull yextend or retrac tand
reverses when possible.
Whe nextension/retraction of th eactive aerodynamic sprofile is
blocked:
XMak esur ethat th ecaus eof th ebloc kis eliminated.
XSwitc hoff th eengin eand loc kth evehicle.
XStart th evehicl eafter waiting afew minutes.
The active aerodynamic sprofile return sto th eoriginal position .
If this problem persists or th ecaus ecanno tbe identified:
XVisit aqualified specialist workshop .
RearSpoile rInoper‐ative Limit 125 mphThe rear spoiler canno tbe full yextended and extend sas far as pos -
sible.
The speed of th evehicl eis limite dto 12 5mph (20 0km/h ).
If the extension/retraction of the rear spoiler is blocked, e.g. by ice:
XMake sure that the cause of the block is eliminated.
XSwitch off the engine and lock the vehicle.
XStart the vehicle after waiting a few minutes.
The rear spoiler returns to the original position.
If this problem persists or the cause cannot be identified:
XVisit a qualified specialist workshop.
Ð
Power Steering Mal‐function See Opera‐tor's Manual
The power steering is malfunctioning.
A warning tone also sounds.
GWARNING
You will need to use more force to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.
XIf you are able to steer safely: carefully drive on to a qualified
specialist workshop.
XIf you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.
Phone No ServiceYour vehicle is outside the network provider's transmitter/receiver
range.
XWait until the mobile phone operational readiness symbol appears in the multifunction display.
¥
Check Washer Fluid
The washer fluid level in the washer fluid reservoir has dropped below
the minimum.
XAdd washer fluid (Ypage 237).
Display messages191
On-board computer and displays
Z

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

Problems with the rear spoiler
ProblemPossible causes/consequences andMSolutions
The rear spoiler stops
before reaching the end
position when retracting
manually.You have opened the tailgate while manually retracting the rear
spoiler.
XClose the tailgate.
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.
XSwitch the ignition back on.
XPress the ¬button.
The rear spoiler extends/retracts.
The rear spoiler cannot
be retracted again after
manually extending it.You have opened the tailgate while manually extending the rear
spoiler.
XClose the tailgate.
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.
XRemove the object.
Active aerodynamics profile
Overview
The active aerodynamics profile is located at the
front end of the vehicle on the underbody. It
improves the vehicle's aerodynamics depending on the vehicle speed.
Only use button :to extend and retract the
active aerodynamics profile manually for clean-
ing.
Button :is not used to operate the active aer-
odynamics profile. The active aerodynamics profile extends auto-
matically if:
Ryou drive faster than 75 mph (120 km/h) in
drive programs
C,Sand S+.
Ryou drive faster than 50 mph (80 km/h) in the
RACE drive program.
Button :flashes until the active aerodynamics
profile has extended and then lights up red.
The active aerodynamics profile retracts auto-
matically if:
Ryou drive slower than 50 mph (80 km/h) in
drive programs C,Sand S+.
Ryou drive slower than 37 mph (60 km/h) in
theRACE drive program.
Button :flashes until the active aerodynamics
profile has retracted and then goes out.
Extending and retracting the active aer-
odynamics profile manually
GWARNING
Body parts could become trapped if you man-
ually retract the active aerodynamics profile.
There is a risk of injury.
When retracting the active aerodynamics pro-
file, make sure that nobody is within the range
Features227
Stowage and features
Z

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