2020 MERCEDES-BENZ AMG GT R-ROADSTER Owners Manual

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
7 Seat belt warning lamp The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
or
The red seat belt warning lamp will light up once the engine has star ted.
In addition, an intermittent warning tone may sound.
* The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds:
The driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt (/ page37).
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat.
* The
red seat belt warning lamp will light up once the engine has star ted:
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page37).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. 390
Display messa ges and warning/indicator lamps

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
Ù Elect ric po werst eering
wa rning lamp (red) The
red elect ric po werst eering warning lamp is lit while the engine is running.
*The po wer assi stance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Notethe messages on the multifunction displa y.
Õ
Wa rning lamp for traction
control The
warning lamp for traction control flashes while you are driving.
*T he traction contro l intervenes.
Fu nction of traction control (/ page 147). Displ
aymessa ges and warning/indicator lamps 391

Engine
Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
ÿ Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
*Possible causes: R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of burn s when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. Do not continue
driving. #
Notethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: 392
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
Consult a qualified specialist workshop.
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 294). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C.
; Engine diagnosis warning
lamp The
yellow engine diagno stics warning lamp is lit while the engine is running.
*A malfunction has occur red in the engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
p Engine operating temp era‐
ture warning lamp The blue
warning lamp for engine operating temp erature will remain lit until the engine operating temp erature has been
re ached.
*T he engine output and engine torque will remain reduced until then. #
Take this into consideration in your driving style. Display messages and
warning/indicator lamps 393

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
# Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
*T here is a fault in the electrics. #
Notethe messages on the multifunction displa y.
8
Fu elreser vewarning lamp
lights up The
yellow fuel reser ve wa rning lamp lights up while the engine is running.
*T he fuel supply has dropped into there ser verange. #
Refuel. 394
Displaymessa ges and warning/indicator lamps

Brakes
Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
! Elect ric pa rking brake indi‐
cator lamp (red)
!
The elect ric pa rking brake
(yellow) indicator lamp The
red elect ric pa rking brake indicator lamp flashes or is lit.
The yellow elect ric pa rking brake indicator lamp also lights up in theev ent of a malfunction.
* #
Notethe messages on the multifunction displa y.
J
Brake sy stem warning lamp
(yellow) The
yellow brake sy stem warning lamp is lit while the engine is running.
* &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and drive on carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, obse rve it. Display messages and
warning/indicator lamps 395

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) The
red brake sy stem warning lamp is lit while the engine is running.
*Possible causes: R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
R The reis insuf ficient brake fluid in the brake fluid reser voir. #
Notethe messages on the multifunction displa y. &
WARNING Risk of accident and inju ryif brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal forc e may be necessary for braking. The braking
ch aracteristics may be impaired. The braking dis tance can increase in emergency braking situations. #
Stop in a safe location immediately. Do not continue driving! #
Consult a qualified specialist workshop. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. 396
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
Do not top up the brake fluid. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
L Wa rning lamp for dis tance
wa rning function The
red dis tancewarning lamp lights up while theve hicle is in motion.
*T he dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance.
Fu nction of Active Brake Assi st (/ page 135).
ä Suspension warning lamp
(yellow) The
yellow AMG RIDE CONTROL warning lamp is lit.
*T here is a fault in the AMG RIDE CONTROL. #
Notethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 397