2019 MERCEDES-BENZ AMG GT ROADSTER engine overheat

Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and driving
safety systems adjusts automatically while a
certain distance is being driven after the vehicle has been delivered or after repairs. Full system
effectiveness is not reached until the end of this
teach-in procedure.
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. The first 1,000 miles (1,500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its per-
formance in the future.
R You should therefore drive at varying vehicle
and engine speeds for the first 1,000 miles
(1,500 km).
R Ideally, for the first 1,000 miles (1,500 km),
drive in program C.
R Do not drive faster than 85 mph (140 km/h)
for the first 1,000 miles (1,500 km).
R Only briefly allow the engine to reach a max-
imum engine speed of 4,500 rpm briefly.
R Avoid heavy loads, e.g. driving at full throttle,
during this period.
R Do not exceed 00C3of the maximum permitted
engine speed for each gear.
R Shift up into manual mode Mand temporary
manual drive program in good time.
R Do not carry out a RACE START.
R Do not manually shift to a lower gear to brake
the vehicle.
R Try to avoid depressing the accelerator pedal
beyond the pressure point (kickdown).
After 1,000 mile s(1,500 km), you can increase
the engine speed gradually and accelerate the
vehicle to full speed.
You should also observe these notes on break-
ing in if the engine or parts of the drive train on your vehicle have been replaced.
Always observe the respective maximum per-
missible speed. Driving
Important safety notes
G
WARNING
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. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off. Driving
109Driving and parking Z

running an enclosed space without adequate
ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes- Benz service requirements.
You can obtain current information concerning
the servicing of your vehicle at any time from a
qualified specialist workshop. This could be an
overview of the maintenance work or any addi-
tional maintenance work, for example. Braking
Important safety notes G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients !
On long and steep gradients, you must
reduce the load on the brakes by shifting to a
lower gear in good time. This allows you to
take advantage of the engine's braking effect.
This helps you to avoid overheating the
brakes and wearing them out excessively.
When you take advantage of engine braking, a drive wheel may not turn for some time, e.g.
on a slippery road surface. This could cause damage to the drive train. This type of damage
is not covered by the Mercedes-Benz war-
ranty.
Heavy and light loads G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive on for a short while. This allows the airflow to
cool the brakes more quickly.
Wet roads If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.132
Driving tipsDriving and parking

Setting a speed
Keep in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the speed set.
X Press the cruise control lever up 0043for a
higher speed or down 0044for a lower speed.
X To adjust the set speed in 1 mph incre-
ments (1 km/h increments):
briefly press
the cruise control lever up 0043or down 0044to
the pressure point.
Every time the cruise control lever is pressed
up 0043 or down 0044the last speed stored is
increased or reduced.
X To adjust the set speed in 5 mph incre-
ments
(10 km/h increments): briefly press
the cruise control lever up 0043or down 0044
beyond the pressure point.
Every time the cruise control lever is pressed
up 0043 or down 0044the last speed stored is
increased or reduced.
i Cruise control is not deactivated if you
depress the accelerator pedal. If you acceler-
ate to overtake, cruise control adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control There are several ways to deactivate cruise con-
trol:
X Briefly press the cruise control lever for-
wards 0043.
or
X Brake.
Cruise control is automatically deactivated
under the following conditions:
R the electric parking brake is applied.
R you are driving slower than 20 mph
(30 km/h).
R if ESP ®
intervenes or you deactivate ESP ®
.
R you shift the transmission to position 005C
while driving.
If cruise control is deactivated, a warning tone
sounds. You will see the Cruise Control Off Cruise Control Off
message in the multifunction display for approx-
imately five seconds.
i When you switch off the engine, the last
speed stored is cleared. Active Distance Assist DISTRONIC
General notes Active Distance Assist DISTRONIC regulates the
speed and automatically helps you maintain the
distance from the vehicle detected in front.
Vehicles are detected with the aid of the radar
sensor system. Active Distance Assist
DISTRONIC brakes automatically so that the set
speed is not exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden. By doing so, you will make use of the braking effect of the engine.
This relieves the load on the brake system and
prevents the brakes from overheating and wear- ing too quickly.
If Active Distance Assist DISTRONIC detects
that there is a risk of a collision with the vehicle
in front, you will be warned visually and audibly.
Active Distance Assist DISTRONIC cannot pre-
vent a collision without your intervention. An
intermittent warning tone will then sound and
the distance warning lamp will light up in the
instrument cluster. Brake immediately in order
to increase the distance to the vehicle in front or take evasive action provided it is safe to do so. 136
Driving systemsDriving and parking

Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the on-board computer. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages or
warnings from certain systems in the multifunc- tion display. You should therefore make sure
your vehicle is operating safely at all times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do so. Contact a qualified specialist workshop.
For an overview, see the instrument panel illus-
tration (Y page 34). Displays and operation
Speedometer with segments
The segments in the speedometer indicate
which speed range is available:
R Cruise control activated (Y page 134):The segments light up from the stored speed
to the type-tested maximum speed.
R Active Distance Assist DISTRONIC activated
(Y page 136):
One or two segments in the set speed range
light up.
R Active Distance Assist DISTRONIC detects a
vehicle in front moving more slowly than the
stored speed:
The segments between the speed of the vehi-
cle in front and the stored speed light up. Tachometer
! Do not drive in the overrevving range, as this
could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Bear in mind that the outside temperature dis-
play indicates the measured air temperature
and not the road surface temperature.
The outside temperature display is in the multi-
function display (Y page 161).
Changes in the outside temperature are dis-
played after a short delay. Coolant temperature gauge
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. Displays and operation
159On-board computer and displays Z

Engine
Display messages
Possible causes/consequences and
0050
0050Solutions 00BD
Check Check
Coolant
Coolant Level
Level
See Operator's Man‐
See Operator's Man‐
ual ual The coolant level is too low.
! Avoid longer journeys when there is insufficient coolant in the
engine cooling system. You could otherwise damage the engine.
X Add coolant, observing the warning notes before doing so
(Y page 239).
X If coolant needs to be added more often than usual, have the engine
coolant system checked at a qualified specialist workshop. 00AC The fan motor is faulty.
X At coolant temperatures below 248 ‡(120 †), drive to the nearest
qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-and-go traffic. 00AC
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to catch
fire.
Steam from the overheated engine can also cause serious burns which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 127).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not blocked,
e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out and
the coolant temperature is below 248 ‡ (120 †). Otherwise, the
engine could be damaged.
X Pay attention to the coolant temperature gage.
X If the temperature increases again, visit a qualified specialist work-
shop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). Display messages
187On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 003D
See Operator's Man‐ See Operator's Man‐
ual ual The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
! Do not drive any further. Otherwise the engine may overheat.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 127).
X Consult a qualified specialist workshop. 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The battery is no longer being charged and the condition of charge is
too low.
A warning tone also sounds.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 127).
X Observe the instructions in the 003DSee Operator's Manual
See Operator's Manual
display message.
X Consult a qualified specialist workshop. 003D
Start Engine See Start Engine See
Operator's Manual Operator's Manual The engine is off and the battery condition of charge is too low.
X
Switch off electrical consumers that you do not need, such as the
rear window defroster and interior lighting.
X Leave the engine running for a few minutes or drive a long distance.
The battery is being charged. 00B2
Check Engine Oil Check Engine Oil
Level (Add 1 quart) Level (Add 1 quart) The engine oil level has dropped to the minimum level.
! Avoid longer journeys when there is insufficient engine oil. You
could otherwise damage the engine.
X Check the oil level when next refueling, at the latest (Y page 236).
X If necessary, add engine oil (Y page 238).
X Have the engine checked at a qualified specialist workshop if engine
oil needs to be added more often than usual.
Information on approved engine oils can be obtained from a qualified
specialist workshop or on the Internet at http://bevo.mercedes-
benz.co m. 00B2
Engine Oil Level Engine Oil Level
Low Stop Vehicle Low Stop Vehicle
Turn Engine Off Turn Engine Off The engine oil level is too low. There is a risk of engine damage.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 127).
X Check the engine oil level (Y page 236).
X If necessary, add engine oil (Y page 238).188
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Reversing
Reversing
Not
NotPossi‐
Possi‐
ble
ble Service
Service Required
Required The sub-transmission with the even gears has failed. You can no longer
engage reverse gear. The smoothness of the gear change is restricted.
The transmission is in emergency mode.
A warning tone also sounds.
X Visit a qualified specialist workshop. Transmission Mal‐ Transmission Mal‐
function Stop function Stop A malfunction has occurred in the mechanical transmission compo-
nents.
A warning tone also sounds. The transmission shifts automatically to position 005C.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the selector lever to position 005D.
X Secure the vehicle against rolling away (Y page 127).
X Notify a qualified specialist workshop or breakdown service. Depress Brake to Depress Brake to
Start Engine Start Engine You cannot start the engine. The engine has been switched off in
005Bor
005E.
X Depress the brake pedal and start the engine. Only Shift to 'P'
Only Shift to 'P'
when when
Vehicle
Vehicle is
isSta‐
Sta‐
tionary
tionary The vehicle is moving.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the transmission to position 005D.005D
Parking Lock Mal‐ Parking Lock Mal‐
funct. Apply Park‐ funct. Apply Park‐
ing Brake ing Brake The transmission position
005Dcannot be selected.
X Make sure that the electric parking brake is applied.
X Prevent the vehicle from rolling away before you leave it
(Y page 282).
X Visit a qualified specialist workshop. 0080
Transmission Oil Transmission Oil
Cooling Malfunction Cooling Malfunction The transmission coolant pump is faulty. The transmission may over-
heat.
X In the on-board computer, select the AMG
AMGmenu and check the
transmission oil temperature (Y page 170).
X Avoid excessive loading, e.g. due to dynamic driving.
X If the transmission oil temperature is below 248 °F (120 °C), drive
on to the nearest qualified specialist workshop. 0080
Trans. Oil Overhea‐ Trans. Oil Overhea‐
ted Drive on with ted Drive on with
Care Care The transmission oil has overheated.
Manual mode
Mand temporary manual drive program are no longer
available. Only the Comfortdrive program is available for the trans-
mission. The engine output is reduced according to the degree of
overheating.
X Allow the transmission oil to cool by adopting a defensive driving
style. Display
messages
195On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions Electronic Rear
Electronic Rear
Axle Differential Axle Differential
Lock Inoperative Lock Inoperative The electronic rear axle differential lock is inoperative.
X Visit a qualified specialist workshop. Electronic Rear
Electronic Rear
Axle Differential Axle Differential
Lock Currently Lock Currently
Unavailable Unavailable The electronic rear axle differential lock motor has overheated.
X Allow electronic rear axle differential lock to cool by adopting a
defensive driving style. 0084 The trunk lid is open.
G WARNING
When the engine is running, exhaust gases can enter the vehicle inte- rior if the trunk lid is open.
There is a risk of poisoning.
X Close the trunk lid. 0083 The hood is open. A warning tone also sounds.
G WARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 127).
X Close the hood. 0051 At least one door is open. A warning tone also sounds.
X Close all the doors. Rear Spoiler Con‐ Rear Spoiler Con‐
trol System Inoper‐ trol System Inoper‐
ative ative The rear spoiler cannot be fully retracted and may extend again.
If the retraction of the rear spoiler is blocked, e.g. by ice:
X Make sure that the cause of the block is eliminated.
X Switch off the engine and lock the vehicle.
X Start 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:
X Visit a qualified specialist workshop. 196
Display
messagesOn-board computer and displays