MERCEDES-BENZ SLS AMG ROADSTER 2012 Owners Manual

Rear spoilerDisplay messagesPossible causes/consequences and M SolutionsÑ
Rear Spoiler
Control System
InoperativeThe rear spoiler cannot be fully retracted and may extend again.
If the 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.Ñ
Rear Spoiler
Inoperative Limit
200 km/h The rear spoiler cannot be fully extended and extends as far as
possible.
The vehicle's speed is limited to 125 mph(200 km/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.Displays and operation189On-board computer and displaysZ

Warning and indicator lamps in the instrument cluster
BrakesProblemPossible causes/consequences and M Solutions$
(USA
only)
J
(Canada
only)The red brake
system
warning lamp
comes on
while the
engine is
running. A
warning tone
also sounds.GRisk of accident
There is not enough brake fluid in the brake fluid reservoir.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XConsult a qualified specialist workshop immediately.XObserve the additional messages in the multifunction display
( Y page 165).
Do not add brake fluid. This will not rectify the malfunction.
F
(USA
only)
!
(Canada
only)The indicator
lamp for the
electric
parking brake
flashes and/
or the yellow
warning lamp
for the
electric
parking brake
lights up.GRisk of accident
The electric parking brake is temporarily malfunctioning or
defective.
XObserve the additional display messages in the multifunction
display.GWARNING
Driving with the brake warning lamp illuminated can result in an accident. Have your brake system
checked immediately if the brake warning lamp stays on. Do not add brake fluid before checking
the brake system.
Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the
brake fluid catching fire. You can be seriously burned.
190Displays and operationOn-board computer and displays

Seat beltsProblemPossible causes/consequences and M Solutions7After starting
the engine, the
red seat belt
warning lamp
lights up for six
seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.XFasten your seat belt ( Y page 49).7After the engine
starts, a warning
tone sounds for
up to six
seconds.GRisk of injury
The driver's seat belt is not fastened.
XFasten your seat belt ( Y page 49).
The warning tone ceases.7The red seat belt
warning lamp
lights up after
the engine
starts, as soon
as the driver's
door or the
front-passenger
door is closed.GRisk of injury
The driver or front passenger has not fastened their seat belt.
XFasten your seat belt ( Y page 49).
The warning lamp goes out.GRisk of injury
There are objects on the front-passenger seat.
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.7The red seat belt
warning lamp
flashes and an
intermittent
audible warning
sounds.GRisk of injury
The driver or front passenger has not fastened their seat belt. In
addition, you are driving faster than 15 mph (25 km/h) or you have
briefly driven faster than 15 mph(25 km/h).
XFasten your seat belt ( Y page 49).
The warning lamp goes out and the intermittent audible warning
ceases.GRisk of injury
There are objects on the front-passenger seat. In addition, you are
driving faster than 15 mph (25 km/h) or you have briefly driven
faster than 15 mph(25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent audible warning
ceases.Displays and operation191On-board computer and displaysZ

Safety systemsProblemPossible causes/consequences and M Solutions!The yellow ABS
warning lamp is
lit while the
engine is
running.GRisk of accident
ABS (Anti-lock Brake System) is deactivated due to a malfunction.
Therefore ESP ®
(Electronic Stability Program), BAS (Brake Assist)
and hill start assist are also deactivated, for example.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XObserve the additional messages in the multifunction display
( Y page 170).XDrive on carefully.XVisit a qualified specialist workshop.h
å
!The yellow ESP ®
and ESP ®
OFF
warning lamps
and the yellow
ABS warning
lamp are lit while
the engine is
running.GRisk of accident
ABS and ESP ®
are faulty. Other systems, e.g. BAS and hill start
assist, are unavailable due to a malfunction. The brake system
continues to function normally, but without the functions listed
above. The wheels could therefore lock if you brake hard, for
example.
XObserve the additional messages in the multifunction display
( Y page 170).XDrive on carefully.XVisit a qualified specialist workshop.hThe yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion.GRisk of accident
ESP ®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
XWhen pulling away, only depress the accelerator pedal as far as
necessary.XRelease the accelerator pedal while the vehicle is in motion.XAdapt your driving style to suit the road and weather conditions.XDo not deactivate ESP ®
.
For exceptions: ( Y page 56).192Displays and operationOn-board computer and displays

ProblemPossible causes/consequences and M SolutionsMThe yellow
SPORT handling
mode warning
lamp is lit while
the engine is
running.GRisk of accident
SPORT handling mode is activated. ESP ®
only stabilizes the vehicle
in extreme situations. ESP ®
intervention may not be able to
provide enough assistance in such situations, and the vehicle may
start to skid.
XReactivate ESP ®
.
For exceptions: ( Y page 56).h
åThe yellow ESP ®
and ESP ®
OFF
warning lamps
are lit while the
engine is
running.GRisk of accident
ESP ®
is not available due to a malfunction. ESP ®
will not stabilize
the vehicle if it starts to skid or if a wheel starts to spin. The brake
system continues to function normally, but without ESP ®
.
XDrive on carefully.XVisit a qualified specialist workshop.6The red SRS
warning lamp is
lit while the
engine is
running.GRisk of injury
The restraint systems are malfunctioning. The air bags or ETDs
may either be triggered unintentionally or, in the event of an
accident, not be triggered at all.
XVisit a qualified specialist workshop immediately.GWARNING
In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center
immediately to have the system checked. Otherwise the SRS may not be activated when needed
in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and
unnecessarily which could also result in injury.
Displays and operation193On-board computer and displaysZ

EngineProblemPossible causes/consequences and M Solutions;The yellow
Check Engine
warning lamp
lights up while
the engine is
running.There may be a malfunction, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
The emission limit values may be exceeded and the engine may
be running in emergency mode.XHave the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states/provinces, you are required by law to
immediately visit a qualified specialist workshop as soon as the
yellow Check Engine warning lamp lights up. If in doubt, check
whether such legal regulations apply in the state/province in
which you are currently driving.
;The yellow
Check Engine
warning lamp
lights up while
the engine is
running. The
smoothness of
the gear change
is restricted.The sub geartrain with the odd gears has failed. The transmission
is in emergency mode.XHave the vehicle checked as soon as possible at a qualified
specialist workshop.çThe red engine
oil temperature
warning lamp
comes on while
the engine is
running. A
warning tone
also sounds.The engine oil temperature has exceeded 284 ‡ (140 †).
The engine is not being cooled sufficiently and may be damaged.XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.XAllow the engine to cool down.194Displays and operationOn-board computer and displays

ProblemPossible causes/consequences and M SolutionsçThe red engine
oil temperature
warning lamp
comes on while
the engine is
running. The
engine oil
temperature is
not displayed.The engine control unit data transfer is malfunctioning.XVisit a qualified specialist workshop.7The yellow
reserve fuel
warning lamp
lights up while
the engine is
running.The fuel level has dropped into the reserve range.XRefuel at the nearest gas station.7
The yellow reserve fuel
warning lamp flashes
while the engine is
running.The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.XCheck that the fuel filler cap is correctly closed.XIf the fuel filler cap is not correctly closed: close the fuel filler
cap.XIf the fuel filler cap is closed: visit a qualified specialist
workshop.GWARNING
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! If the coolant temperature exceeds 248 ‡(120 †) do not continue driving. The engine will
otherwise be damaged.
Displays and operation195On-board computer and displaysZ

TiresProblemPossible causes/consequences and M Solutionsh
USA only:
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
Canada only:
The yellow tire pressure
monitor warning lamp
(pressure loss) is lit.GRisk of accident
The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XObserve the additional display messages in the multifunction
display.XCheck the tire pressure. If necessary, correct the tire pressure
( Y page 257).XIf necessary, change a wheel ( Y page 271).h
USA only:
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
60 seconds and then
remains lit.The tire pressure monitor is faulty.XObserve the additional display messages in the multifunction
display.XVisit a qualified specialist workshop.GWARNING
Each tire, including the spare (if provided), should be checked at least every two weeks when
cold and inflated to the pressure recommended by the vehicle manufacturer on the Tire and
Loading Information placard on the driver's door B-pillar or, if available, the tire pressure label
on the inside of the fuel filler flap. If your vehicle has tires of a different size than the size indicated
on the Tire and Loading Information placard or the tire pressure label, you should determine the
proper tire pressure for those tires.
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are
significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should
stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving
on a significantly underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance,
and it is the driver's responsibility to maintain correct tire pressure, even if underinflation has
not reached the level to trigger illumination of the TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS malfunction indicator is combined with the low tire
pressure telltale. When the system detects a malfunction, the telltale will flash for approximately
1 minute and then remain continuously illuminated. This sequence will be repeated every time
196Displays and operationOn-board computer and displays

the vehicle is started as long as the malfunction exists. When the malfunction indicator is
illuminated, the system may not be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of incompatible
replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels
on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to
continue to function properly.Displays and operation197On-board computer and displaysZ

198