MERCEDES-BENZ SLK-CLASS ROADSTER 2015 Owners Manual

Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!(Canada
only)
ParkingBrakeInopZ
erative
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, e.g. because of over-
voltage or undervoltage.
X Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
X Switch off the ignition and turn it back on.
X Engage or release the electric parking brake.
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied: X Visit a qualified specialist workshop.
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.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to position P.
X Visit a qualified specialist workshop.
$(USA
only)
J(Canada
only)
Check Brake Fluid
Level
There is not enough brake fluid in the brake fluid reservoir.
In addition, the $(USA only)/ J(Canada only) warning
lamp lights up in the instrument cluster and a warning tone
sounds.
GWARNING
The braking effect may be impaired.
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. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away ( Ypage 161).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction.
Display messages219
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
$(USA
only)
J(Canada
only)
Brake Immediately
A 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.
X Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message disap-
pears.
X Prevent the vehicle from rolling away before you leave it(Y page 161).
You can restart the engine.
#
Check Brake Pad
Wear
The brake pads/linings have reached their wear limit.
X Visit a qualified specialist workshop.
G
mbrace Inoperative
One or more main features of the mbrace system are malfunc-
tioning.
X Have the mbrace system checked immediately at a qualified
specialist workshop.
PRE-SAFE
Inoperative See
Operator's Manual
Important functions of PRE-SAFE ®
have failed. All other occupant
safety systems, e.g. air bags, remain available.
X Visit a qualified specialist workshop immediately.
220Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
PRE-SAFE
PRE-SAFEFunctions
Currently Limited
SeeOperator'sManZ
ual
PRE

Display messagesPossible causes/consequences andMSolutions
6
FrontLeftMalfuncZ
tion Service
RequiredorFront
Right Malfunction
Service Required
The restraint system has malfunctioned at the front on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig- gered 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.
6
Left Side Curtain
AirbagMalfunction
Service Required
orRight Side CurZ
tain Airbag MalZ
function Service
Required
There is a malfunction in the left-hand and/or right-hand head bag.
The 6 warning lamp also lights up in the instrument cluster.
GWARNING
The left or right head bag 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.
222Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Front Passenger
Airbag Disabled
SeeOperator'sManZ
ual
The front-passenger air bag and front-passenger knee bag are
deactivated during the journey, although:
R an adult or
R a person of the corresponding stature is on the front-passenger
seat
If additional forces are applied to the seat, the system may inter-
pret the occupant's weight as lower than it actually is.
GWARNING
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 Secure the vehicle against rolling away ( Ypage 161).
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.
X Observe the PASSENGER AIR BAG OFF indicator lamp in the
center console and the multifunction display and check the fol-
lowing:
Seat unoccupied and ignition switched on:
R the PASSENGER AIR BAG OFF indicator lamp must then light
up and remain lit. If the indicator lamp is on, OCS has disabled the front-passenger front air bag and front-passenger knee
bag ( Ypage 49)
R the
FrontPassengerAirbagEnabledSeeOperator's
ManualorFrontPassengerAirbagDisabledSeeOperZ
ator's Manualdisplay messages must not be shown in the
multifunction display.
X Wait for a period of at least 60 seconds until the necessary sys-
tem checks have been completed.
X Make sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF indicator
lamp remains lit or goes out depends on how OCS classifies the
occupant.
If the conditions are not fulfilled, the system is not operating cor- rectly.
Display messages223
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see ( Ypage 49).
Front Passenger
Airbag Enabled
SeeOperator'sManZ
ual
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 sys-
tem's weight threshold is located on the front-passenger seat or
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
GWARNING
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 Secure the vehicle against rolling away ( Ypage 161).
X Switch the ignition off.
X Open the front-passenger door.
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 actuallyis.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X Observe the PASSENGER AIR BAG OFF indicator lamp in the
center console and the multifunction display and check the fol-
lowing:
Seat unoccupied and ignition switched on:
R the PASSENGER AIR BAG OFF indicator lamp must then light
up and remain lit. When the indicator lamp is on, OCS (Occu- pant Classification System) has disabled the front-passenger
front air bag and front-passenger knee bag ( Ypage 49)
R the
FrontPassengerAirbagEnabledSeeOperator's
ManualorFrontPassengerAirbagDisabledSeeOperZ
224Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
ator's Manualdisplay messages must not be shown in the
multifunction display.
X Wait for a period of at least 60 seconds until the necessary sys-
tem checks have been completed.
X Make sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF indicator
lamp remains lit or goes out depends on how OCS classifies the
occupant.
If the conditions are not fulfilled, the system is not operating cor-
rectly.
X Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see ( Ypage 49).
Lights
iVehicles with LED bulbs in the light clusters:
The display message for the corresponding light will only appear if all the LEDs have failed.
Display messagesPossible causes/consequences and MSolutions
b
Check Left CornerZ
ing LightorCheck
Right Cornering
Light
The left or right-hand cornering light is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Check Left Low
BeamorCheck
Right Low Beam
The left or right-hand low-beam headlamp is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Check Rear Left
Turn Signalor
Check Rear Right
Turn Signal
The rear left-hand or rear right-hand turn signal is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
Display messages225
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
b
Check Front Left
Turn Signalor
Check Front Right
Turn Signal
The front left-hand or front right-hand turn signal is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Check Left Mirror
Turn Signalor
CheckRightMirror
Turn Signal
The turn signal in the left-hand or right-hand exterior mirror is
defective.
X Visit a qualified specialist workshop.
b
CheckCenterBrake
Lamp
The high-mounted brake lamp is faulty. X
Visit a qualified specialist workshop.
b
Check Left Brake
LamporCheck
Right Brake Lamp
The left or right-hand brake lamp is defective. XVisit a qualified specialist workshop.
b
Check Left Tail
and Brake Lampsor
Check Right Tail
and Brake Lamps
The left or right-hand tail lamp/brake lamp is defective.
X Visit a qualified specialist workshop.
b
Check Left High
BeamorCheck
Right High Beam
The left or right-hand high beam is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
License Plate Lamp
The left or right-hand license plate lamp is faulty.
X Visit a qualified specialist workshop.
b
Check Left Fog
LamporCheck Right
Fog Lamp
The left or right-hand fog lamp is faulty.
X Visit a qualified specialist workshop.
226Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
b
Rear Fog Lamp
The rear fog lamp is faulty.
X Visit a qualified specialist workshop.
b
Check Front Left
Parking Lampor
Check Front Right
Parking Lamp
The front left or front right parking or standing lamp is defective. X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Backup Light
The backup lamp is defective.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Check Front Left
Sidemarker Lampor
Check Front Right
Sidemarker Lamp
The front left-hand or front right-hand side marker lamp is faulty.
X Visit a qualified specialist workshop.
b
Check Rear Left
Sidemarker Lampor
Check Rear Right
Sidemarker Lamp
The rear left-hand or rear right-hand side marker lamp is faulty.
X Visit a qualified specialist workshop.
b
CheckLeftDaytime
Running Lightor
Check Right DayZ
time Running Light
The left or right-hand daytime running lamp is faulty.
X Check whether you are permitted to replace the bulb yourself (Y page 115).
or
X Visit a qualified specialist workshop.
b
Active Headlamps
Inoperative
The active light function is faulty.
X Visit a qualified specialist workshop.
b
Malfunction See
Operator's Manual
The exterior lighting is defective.
X Visit a qualified specialist workshop.
Display messages227
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
b
AutoLampFunction
Inoperative
The light sensor is defective.
X Visit a qualified specialist workshop.
b
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.
Adaptive Highbeam
Assist Inoperative
Adaptive Highbeam Assist is faulty. X
Visit a qualified specialist workshop.
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual
Adaptive Highbeam Assist is deactivated and temporarily inoper-
ative. Possible causes are:
R the windshield in the camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
X Clean the windshield.
If the system detects that the camera is fully operational again, the
Adaptive Highbeam Assist Now Availablemessage is dis-
played.
Adaptive Highbeam Assist is operational again.
Engine
Display messagesPossible causes/consequences and MSolutions
+
Check Coolant
Level See OperaZ
tor'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 Add coolant, observing the warning notes before doing so (Y page 283).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop.
?The fan motor is faulty. XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
228Display messages
On-board computer and displays