MERCEDES-BENZ SLS AMG ROADSTER 2014 Owners Manual

Display messages Possible causes/consequences and
M
MSolutions F(USA
only)
!(Canada
only)
Turn On the Turn On the
Ignition to Ignition to
Release the Release the
Parking Brake Parking Brake !
The indicator lamp (red) flashes.
You attempted to release the electric parking brake while the
ignition was switched off.
X Switch on the ignition. F(USA
only)
J(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir. In
addition, the
Jindicator lamp in the instrument cluster lights
up and a warning tone sounds.
G WARNING
Driving with the message Check Brake Fluid Level Check Brake Fluid Level displayed
can result in an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop.
Do not add brake fluid. This does not correct the malfunction. #
Check Brake Pad Check Brake Pad
Wear Wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. Display
messages
169On-board computer and displays Z

Safety systems
Display messages Possible causes/consequences and
M
MSolutions ÷
ESC Inoperative ESC Inoperative
See Operator's See Operator's
Manual Manual ESP
®
, BAS and hill start assist are unavailable due to a
malfunction. In addition, the handå warning lamps light
up in the instrument cluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Drive on carefully.
X Visit a qualified specialist workshop. ÷
ESC Currently ESC Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual ESP
®
, BAS and hill start assist are temporarily unavailable. The
self-diagnosis function might not be complete, for example. The
brake system continues to function normally, but without the
functions listed above. In addition, the handå warning
lamps light up in the instrument cluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Carefully drive a short distance making slight steering
movements at a speed above 12 mph (20 km/h) until the display
message disappears. Front Passenger Front Passenger
Airbag Enabled Airbag Enabled
See Operator's See Operator's
Manual Manual The front-passenger air bag and front-passenger knee bag are
enabled during the journey, even though:
R
a child, a small adult or an object weighing less than the
system's weight threshold is located on the front-passenger
seat
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
G WARNING
The front-passenger front air bag and front passenger knee bag
may be triggered unintentionally.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Switch the ignition off.
X Open the front-passenger door. 170
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M
MSolutions X
Remove the child and the child restraint system from the front-
passenger seat.
X Make sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
Observe the 45(Ypage 42) indicator lamp and the
multifunction display and check the following:
Seat unoccupied and ignition switched on:
R the 45 indicator lamp must light up and remain lit. If the
indicator lamp is on, OCS ( Ypage 42) has disabled the front-
passenger air bag.
R the Front Passenger Airbag Enabled See Operator's Front Passenger Airbag Enabled See Operator's
Manual
Manual orFront Passenger Airbag Disabled See
Front Passenger Airbag Disabled See
Operator's Manual
Operator's Manual display messages must not be shown in
the multifunction display. Wait for a period of at least
60 seconds until the necessary system checks have been
completed. This is necessary to make sure that the display
messages do not appear in the multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the 45indicator lamp remains lit
or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System,
see (Y page 42). Display
messages
171On-board computer and displays Z

Display messages Possible causes/consequences and
M
MSolutions Front Passenger
Front Passenger
Airbag Disabled Airbag Disabled
See Operator's See Operator's
Manual Manual The front-passenger air bag and front-passenger knee bag are
deactivated during the journey, although:
R
an adult
or
R a person larger than a certain size is occupying the front-
passenger seat
If additional forces are applied to the seat, the system may
interpret the occupant's weight as lower than it actually is.
G WARNING
The front-passenger front air bag and front passenger knee bag
may not be triggered in the event of an accident.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Switch the ignition off.
X Have the occupant get out of the vehicle.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
Observe the 45(Ypage 42) indicator lamp and the
multifunction display and check the following:
Seat unoccupied and ignition switched on:
R the 45 indicator lamp must light up and remain lit. If the
indicator lamp is on, OCS ( Ypage 42) has disabled the front-
passenger air bag.
R the Front Passenger Airbag Enabled See Operator's
Front Passenger Airbag Enabled See Operator's
Manual Manual orFront Passenger Airbag Disabled See
Front Passenger Airbag Disabled See
Operator's Manual
Operator's Manual display messages must not be shown in
the multifunction display. Wait for a period of at least
60 seconds until the necessary system checks have been
completed. This is necessary and ensures that the display
messages do not appear in the multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the 45indicator lamp remains lit
or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X Visit a qualified specialist workshop immediately. 172
Display
messagesOn-board computer and displays

Display messages Possible causes/consequences and
M
MSolutions G
Tele Aid Tele Aid
Inoperative Inoperative One or more main features of the mbrace system are
malfunctioning.
X
Have the mbrace system checked immediately at a qualified
specialist workshop. 6
SRS Malfunction SRS Malfunction
Service Required Service Required There is a malfunction in the SRS (Supplemental Restraint
System). The
6warning lamp also lights up in the instrument
cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
For further information about SRS, see (Y page 37).6
Front Left SRS Front Left SRS
Malfunction Malfunction
Service Required Service Required
or
Front Right SRS Front Right SRS
Malfunction Malfunction
Service Required Service Required SRS has malfunctioned at the front on the left or right. The
6
warning lamp also lights up in the instrument cluster.
G WARNING
If SRS is malfunctioning, individual systems may be triggered
unintentionally or might not be triggered in the event of an
accident with a high rate of vehicle deceleration. In this condition,
the restraint system provides only restricted protection.
X Visit a qualified specialist workshop. Lights
i Display messages about LEDs:
The display message will only appear if all or a number of LEDs have failed. Display
messages
173On-board computer and displays Z

Display messages Possible causes/consequences and
M
MSolutions b
Check Check
Left
LeftLow
LowBeam
Beam
or
Check Right Low Check Right Low
Beam Beam The left or right-hand low-beam headlamp does not light up. In
addition, the high-beam headlamp is also inoperative.
X
Visit a qualified specialist workshop. b
AUTO AUTO
Lamp
LampFunction
Function
Inoperative
Inoperative The light sensor is defective.
USA only:
X
Switch off the daytime running lamps in the on-board computer
(Y page 158).
X Switch the lights on and off using the light switch. b
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right Check Rear Right
Turn Signal Turn Signal The LEDs in the rear left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. b
Check Left Mirror Check Left Mirror
Turn Signal Turn Signal
or
Check Check
Right
RightMirror
Mirror
Turn Signal
Turn Signal None of the LEDs in the left or right-hand exterior mirrors light up.
X
Visit a qualified specialist workshop. b
Check Front Left Check Front Left
Turn Signal Turn Signal
or
Check Front Right Check Front Right
Turn Signal Turn Signal The LEDs in the front left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. b
Check Check
Center
Center Brake
Brake
Lamp
Lamp None of the LEDs in the high-mounted brake lamp light up.
X
Visit a qualified specialist workshop. 174
Display
messagesOn-board computer and displays

Display messages Possible causes/consequences and
M
MSolutions b
Check Left Brake Check Left Brake
Lamp Lamp
or
Check Right Brake Check Right Brake
Lamp Lamp The left or right-hand brake light LEDs do not light up.
X
Visit a qualified specialist workshop. b
Check Left Tail Check Left Tail
Lamp Lamp
or
Check Right Tail Check Right Tail
Lamp Lamp The left or right-hand tail lamp LEDs do not light up.
X
Visit a qualified specialist workshop. b
Check Left High Check Left High
Beam Beam
or
Check Right High Check Right High
Beam Beam The left or right-hand low-beam headlamp does not light up.
X
Visit a qualified specialist workshop. b
Check Check
Left
LeftLicense
License
Plate Lamp
Plate Lamp
or
Check Right Check Right
License Plate Lamp License Plate Lamp The left or right-hand license plate lamp does not light up.
X
Replace the bulb (Y page 101). b
Backup Light Backup Light None of the LEDs in the backup lamp light up.
X
Visit a qualified specialist workshop. b
Check Check
Left
LeftDaytime
Daytime
Running Light
Running Light
or
Check Right Check Right
Daytime Running Daytime Running
Light Light The LEDs in the left or right-hand daytime running lamp do not
light up. As a result, the corresponding side/standing lamp has
failed.
X
Visit a qualified specialist workshop. Display
messages
175On-board computer and displays Z

Display messages Possible causes/consequences and
M
MSolutions b
Check Front Left Check Front Left
Sidemarker Lamp Sidemarker Lamp
or
Check Front Right Check Front Right
Sidemarker Lamp Sidemarker Lamp The left or right front side marker lamp is defective.
X
Visit a qualified specialist workshop. b
Check Rear Left Check Rear Left
Sidemarker Lamp Sidemarker Lamp
or
Check Rear Right Check Rear Right
Sidemarker Lamp Sidemarker Lamp The rear left or right side marker lamp is defective.
X
Visit a qualified specialist workshop. b
Check Front Left Check Front Left
Parking Lamp Parking Lamp
or
Check Front Right Check Front Right
Parking Lamp Parking Lamp The front left or front right parking or standing lamp is defective.
X
Visit a qualified specialist workshop. b
Switch Off Lights Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to Ã.b
Malfunction See Malfunction See
Operator's Manual Operator's Manual The exterior lighting is defective.
X
Visit a qualified specialist workshop. 176
Display
messagesOn-board computer and displays

Engine
Display messages Possible causes/consequences and
M
MSolutions ?
Coolant Low Stop Coolant Low Stop
Vehicle Turn Vehicle Turn
Engine Off Engine Off The coolant is too hot. In addition, the
?warning lamp in the
instrument cluster lights up and a warning tone 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,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 131).
X Wait until the engine has cooled down.
X Make sure that the air supply to the radiator is not blocked, e.g.
by snow, slush or ice.
X Wait until the display message disappears before restarting the
engine. Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the coolant temperature increases again, visit a qualified
specialist workshop immediately.
! If the coolant temperature is over 248 ‡ (120 †), do not
continue driving. The engine will otherwise be damaged. ? The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. Display messages
177On-board computer and displays Z

Display messages Possible causes/consequences and
M
MSolutions # 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
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Ypage 131).
X Open the hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. +
Check Coolant Check Coolant
Level See Level See
Operator's Manual Operator's Manual The coolant level is too low.
!
Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X
X Add coolant, observing the warning notes before doing so
(Y page 220).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. 4
Engine Oil Level Engine Oil Level
Low Stop Vehicle Low Stop Vehicle
Turn Engine Off Turn Engine Off There is insufficient oil in the engine. There is a risk of engine
damage.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Top up and check the engine oil level (Y page 219).178
Display
messagesOn-board computer and displays