2012 MERCEDES-BENZ SLS AMG COUPE Owners Manual

Display messagesPossible causes/consequences and M Solutionsh
Tire Pressure
Warning Caution
Tire MalfunctionGRisk of accident
The tire pressure in one or more tires has dropped suddenly. A
warning tone also sounds.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XRepair the faulty tire or change the wheel ( Y page 271).h
Check Tire PressureGRisk of accident
The tire pressure in one or more tires has dropped significantly. A
warning tone also sounds.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XCorrect the tire pressure ( Y page 257).XIf necessary, repair the faulty tire or change the wheel
( Y page 271).
Vehicle
Display messagesPossible causes/consequences and M Solutions120 km/h
Maximum Speed
ExceededThe maximum speed has been exceeded 11
.XDrive more slowly.NThe trunk lid is open.XClose the trunk lid.LGRisk of accident
The hood is open.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XClose the hood.´ (Coupe only)
C (Roadster
only)At least one door is open.XClose the doors.11 Only for certain countries.Displays and operation183On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsK
Convertible Top
Operation Possible
to 31 mphIf you are traveling at more than 31 mph (50 km/h), you cannot
open or close the soft top.XFully open or close the soft top ( Y page 78).K
Convertible top
Opening/Closing
Not FinishedThe soft top is not fully opened or closed. The hydraulics are
depressurized.XFully open or close the soft top ( Y page 78).K
Open/Close
Convertible Top
CompletelyThe roof is not locked. If you are traveling at more than 31 mph
(50 km/h), you cannot open or close the soft top.XIf you are traveling at more than 31 mph (50 km/h), slow down.XPush or pull the soft-top switch (Y page 78) until the soft top is
fully open or closed.K
Convertible Top in
Operation Please
WaitThe on-board voltage is too low.XStart the engine.The soft top has been opened and closed several times in a row.
The soft-top drive has been switched off automatically for safety
reasons.
You can open and close the soft top again after approximately ten
minutes.XSwitch off the ignition and turn it back on.XRepeat the opening or closing procedure ( Y page 78).K
Depress brakeYou have attempted to close the soft top with the soft top switch
while the vehicle was stationary.XDepress the brake pedal.XPress the soft-top switch until the soft top is completely closed.¥
Check Washer FluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.Xadd washer fluid ( Y page 221).184Displays and operationOn-board computer and displays

SmartKeyDisplay messagesPossible causes/consequences and M Solutions+
Replace Key BatteryThe SmartKey batteries are discharged.XChange the batteries ( Y page 66).+
Key Not Detected
(red display message)The SmartKey is not in the vehicle. A warning tone also sounds.
When you switch off the engine, you will be unable to restart it.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XLocate the SmartKey.The SmartKey is not detected while driving because a powerful
radio transmitter is causing interference. A warning tone also
sounds.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XInsert the SmartKey into the ignition lock and turn it to the
desired position ( Y page 115).+
Key Not Detected
(white display
message)You are in the vehicle and the SmartKey currently cannot be
detected by the vehicle.XChange the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
XInsert the SmartKey into the ignition lock and turn it to the
desired position ( Y page 115).+
Obtain a New Key The SmartKey needs to be replaced.XVisit a qualified specialist workshop.+
Key Does Not
Belong to VehicleYou have put the wrong SmartKey in the ignition lock.XUse the correct SmartKey.+
Close Doors to
Lock VehicleAt least one door is open. A warning tone also sounds.XClose all doors and lock the vehicle again.Displays and operation185On-board computer and displaysZ

Display messagesPossible causes/consequences and M Solutions+
Insert KeyThe KEYLESS-GO start function is temporarily malfunctioning or
is defective. A warning tone also sounds.XInsert the SmartKey into the ignition lock and turn it to the
desired position ( Y page 115).+
Take Your Key From
IgnitionThe SmartKey is in the ignition lock.XRemove the SmartKey.
Transmission
Display messagesPossible causes/consequences and M SolutionsApply Brake to
Shift from
'P'You have attempted to move the transmission selector lever to
position D, R or N without depressing the brake pedal.XDepress the brake pedal.Apply Brake
and Start Engine
to Disengage 'P'When the engine is switched off, it is not possible to shift out of
park position P.XDepress the brake pedal and start the engine.Start Engine
to Engage GearThe gear cannot be engaged when the engine is switched off.XDepress the brake pedal and start the engine.Depress Brake
to Start EngineYou cannot start the engine. The engine was switched off in
position D or R.XDepress the brake pedal and start the engine.Door Open Vehicle
Not in 'P'The driver's door is open and the transmission is in position R, N
or D.
A warning tone also sounds.XShift the transmission to P using the button on the center
console.XPress the electric parking brake handle.186Displays and operationOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsService Required
Do Not Shift Gears
Visit DealerYou cannot change gear due to a malfunction.
A warning tone also sounds.
If transmission position D is selected:XDo not switch off the engine.XDrive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R, N or P is selected:
XMake sure that the electric parking brake is applied.XPrevent the vehicle from rolling away before you leave it
( Y page 236).XNotify a qualified specialist workshop or breakdown service.
If no transmission position and no drive program is displayed:
XMake sure that the electric parking brake is applied.XPrevent the vehicle from rolling away before you leave it
( Y page 236).XNotify a qualified specialist workshop or breakdown service.Only select Park
(P)
when vehicle is
stationaryThe vehicle is moving.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XShift the transmission to P using the button on the center
console.backing up not
poss.
Consult workshopThe sub geartrain 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.XVisit a qualified specialist workshop.j
Parking lock
malfunct. Apply
parking brakeTransmission position P cannot be selected.XMake sure that the electric parking brake is applied.XPrevent the vehicle from rolling away before you leave it
( Y page 236).XVisit a qualified specialist workshop. Have the vehicle
transported on a recovery vehicle or towed with the rear axle
raised ( Y page 244).Displays and operation187On-board computer and displaysZ

Display messagesPossible causes/consequences and M Solutionsd
Stop Engage PThe transmission is faulty. The vehicle loses drive and rolls to a
standstill.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XMake sure that the electric parking brake is applied.XPrevent the vehicle from rolling away before you leave it
( Y page 236).XConsult a qualified specialist workshop.d
Transmission oil
cooling
MalfunctionThe transmission coolant pump is faulty. The transmission may
overheat.XIn the on-board computer, select the AMG menu and check the
transmission oil temperature.XAvoid excessive loading, e.g. due to dynamic driving.XAt transmission oil temperatures under 248 ‡(120 †), drive to
the nearest qualified specialist workshop.d
Trans. oil
overheated Drive
on with careThe transmission oil has overheated.
Manual drive program M and shift range restriction are no longer
available. Only drive program C is still available. The engine output
is reduced according to the degree of overheating.XAllow the transmission oil to cool by adopting a defensive driving
style.188Displays and operationOn-board computer and displays

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