2012 MERCEDES-BENZ SLK-CLASS ROADSTER Owners Manual

Display messages
General notes
GWARNING
All categories of messages contain important information which should be taken note of and,
where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes-Benz
Center.
Failure to repair the condition noted may cause damage not covered by the Mercedes-Benz
Limited Warranty, or result in property damage or personal injury.
Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's
Manual and may differ from the messages shown in the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in
this Operator's Manual.
Certain display messages are accompanied by an audible warning tone or a continuous tone.
Hiding display messages
You can hide some display messages with a low priority.
XPress the a or % button on the steering wheel to hide the display message.
The display message is cleared.
Display messages with a high priority are shown in red.
You cannot hide display messages of the highest priority. The multifunction display shows
these messages continuously until the causes for the messages have been remedied.
Message memory
The on-board computer saves certain display messages. You can call up the display messages
in the message memory .
XPress the = or ; button on the steering wheel and select the Serv. menu.
If there are display messages, the multifunction display shows, for example, 2 messages.XPress the 9 or : button to select the entry, e.g. 2 messages.XConfirm with a.XPress the 9 or : button to scroll through the display messages.
When the ignition is switched off, all display messages are deleted, apart from some high-
priority display messages. Once the causes of the high-priority display messages have been
rectified, the corresponding display messages are also deleted.
Display messages199On-board computer and displaysZ

Safety systemsDisplay messagesPossible causes/consequences and M Solutions!÷
Currently
Unavailable See
Oper. ManualGRisk of accident
ABS (Anti-lock Braking System), ESP ®
(Electronic Stability
Program), BAS (Brake Assist), the HOLD function and hill start
assist are temporarily unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XCarefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.GRisk of accident
ABS, ESP ®
, BAS, the HOLD function and hill start assist are
temporarily unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster.
For example, the on-board voltage may be insufficient.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XDrive on carefully.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.200Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M Solutions!÷
Inoperative See
Oper. ManualGRisk of accident
ABS, ESP ®
, BAS, the HOLD function and hill start assist are
unavailable due to a malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
The $ (USA only)/ J (Canada only), ÷, å
and ! warning lamps in the instrument cluster also light up.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST is deactivated.
XDrive on carefully.XVisit a qualified specialist workshop immediately.÷
Currently
Unavailable See
Operator's ManualGRisk of accident
ESP ®
, BAS, the HOLD function and hill start assist are temporarily
unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above.
XCarefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.Display messages201On-board computer and displaysZ

Display messagesPossible causes/consequences and M Solutions÷
Inoperative See
Operator's ManualGRisk of accident
ESP ®
, BAS, the HOLD function and hill start assist are unavailable
due to a malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above.
XDrive on carefully.XVisit a qualified specialist workshop.T !
÷
Inoperative See
Operator's Manual GRisk of accident
EBD (electronic brake force distribution), ABS, ESP ®
, BAS, the
HOLD function and hill start assist are unavailable due to a
malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster and a warning tone sounds.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XDrive on carefully.XVisit a qualified specialist workshop immediately.#
Check Brake Pad
WearThe brake pads/linings have reached their wear limit.XVisit a qualified specialist workshop.F (USA
only) ! (Canada
only)
Release Parking
BrakeThe red F (USA only)/ ! (Canada only) indicator lamp
flashes and a warning tone sounds. A condition for automatic
release of the electric parking brake is not fulfilled ( Y page 150).
You are driving with the electric parking brake applied.XRelease the electric parking brake manually.The red F (USA only)/ ! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake ( Y page 150).202Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsF (USA
only) ! (Canada
only)
Parking Brake See
Operator's ManualThe yellow ! warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:XSwitch the ignition off.XPress the electric parking brake handle for at least ten seconds.XVehicles with manual transmission: engage first gear.XVehicles with automatic transmission: shift the transmission
to P.XConsult a qualified specialist workshop.The yellow ! warning lamp and the red F (USA
only)/ ! (Canada only) indicator lamp light up.
The electric parking brake is malfunctioning.
To release:XSwitch off the ignition and turn it back on.XRelease the electric parking brake manually.
or
XVehicles with manual transmission: release the electric
parking brake using the automatic emergency release
( Y page 150).XVehicles with automatic transmission: release the electric
parking brake automatically ( Y page 150).
If the yellow
! warning lamp remains lit or continues to flash:
XDo not drive on.XConsult a qualified specialist workshop.Display messages203On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsThe red F (USA only)/ ! (Canada only) indicator lamp
flashes and the yellow ! warning lamp lights up.
The electric parking brake is malfunctioning.
To release:XSwitch off the ignition and turn it back on.XRelease the electric parking brake manually.
To apply:
XSwitch off the ignition and turn it back on.XApply the electric parking brake manually.
If the red F (USA only)/
! (Canada only) indicator lamp
continues to flash:
XDo not drive on.XSecure the vehicle against rolling away ( Y page 276).XVehicles with manual transmission: engage first gear.XVehicles with automatic transmission: shift the transmission
to P.XTurn the front wheels towards the curb.XConsult a qualified specialist workshop.The yellow ! warning lamp lights up. The red F (USA
only)/ ! (Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning.XSwitch off the ignition and turn it back on.XApply the electric parking brake.
If it is not possible to engage the electric parking brake:
XVehicles with manual transmission: engage first gear.XVehicles with automatic transmission: shift the transmission
to P.XVisit a qualified specialist workshop.
If it is not possible to release the electric parking brake:
XRelease the electric parking brake automatically ( Y page 150).
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.204Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M SolutionsThe yellow ! warning lamp lights up. If you manually apply or
release the electric parking brake, the red F (USA
only)/ ! (Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.XVehicles with manual transmission: switch off the ignition.
The electric parking brake is applied automatically.
You can release the electric parking brake using the automatic
emergency release ( Y page 150).XVehicles with automatic transmission: shift the transmission
to P as the electric parking brake is not being applied
automatically.XVisit a qualified specialist workshop.
i If you do not wish the electric parking brake to be applied,
leave the ignition switched on, e.g. when washing the vehicle in
an automatic car wash or when having the vehicle towed.
Exception: when having the vehicle towed with the rear axle
raised ( Y page 287).
F (USA
only) ! (Canada
only)
Pkg Brake
InoperativeThe yellow ! warning lamp lights up. The red F (USA
only)/ ! (Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of
overvoltage or undervoltage.XRemove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.XEngage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
XSwitch off the ignition and turn it back on.XEngage or release the electric parking brake.
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.Display messages205On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsThe display message is only shown while the vehicle is in motion.
The yellow ! warning lamp lights up and the red F (USA
only)/ ! (Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.XVehicles with manual transmission: engage first gear.XVehicles with automatic transmission: shift the transmission
to P.XVisit a qualified specialist workshop.F (USA
only) ! (Canada
only)
Turn On the
Ignition to
Release the
Parking BrakeThe red F (USA only)/ ! (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the
ignition was switched off.XSmartKey: turn the SmartKey to position 1 in the ignition lock.XKEYLESS-GO: switch on the ignition.$(USA
only) J (Canada
only)
Brake ImmediatelyA malfunction has occurred while the HOLD function or
DISTRONIC PLUS is active.
A tone may also sound at regular intervals. If you attempt to lock
the vehicle, the tone becomes louder.
You cannot start the engine.XPaying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message
disappears.XPrevent the vehicle from rolling away before you leave it
( Y page 276).
You can restart the engine.$ (USA
only) J (Canada
only)
Check Brake Fluid
LevelGRisk of accident
There is not enough brake fluid in the brake fluid reservoir.
Additionally, the red $ (USA only)/ J (Canada only)
warning lamp lights up in the instrument cluster and a warning
tone sounds.
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.XApply the electric parking brake.XConsult a qualified specialist workshop.XDo not add brake fluid. This does not correct the malfunction.206Display messagesOn-board computer and displays