2015 MERCEDES-BENZ SLK-CLASS ROADSTER engine
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Display messagesPossible causes/consequences andMSolutions
DISTRONICPLUSCurZ
rentlyUnavailable
SeeOperator'sManZ
ual
DISTRONIC PLUS is temporarily inoperative. Possible causes are:
R function is impaired due to heavy rain or snow.
R the sensors in the radiator trim and the bumper are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
A warning tone also sounds.
When the causes stated above no longer apply, the display mes-
sage disappears.
DISTRONIC PLUS is operational again.
If the display message does not disappear:
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 Clean the sensors in the radiator grill and the bumper(Y page 289).
X Restart the engine.
DISTRONIC PLUS
Inoperative
DISTRONIC PLUS is defective.
BAS PLUS (Brake Assist PLUS) and PRE-SAFE ®
Brake may be
inoperative as well.
A warning tone also sounds.
X Visit a qualified specialist workshop.
DISTRONICPLUSSusZ
pended
You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X Remove your foot from the accelerator pedal.
DISTRONIC PLUS
- - - mph
An activation condition for DISTRONIC PLUS is not fulfilled.
X Check the activation conditions for DISTRONIC PLUS (Y page 171).
234Display messages
On-board computer and displays
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Display messagesPossible causes/consequences andMSolutions
TirePress.Monitor
Currently UnavailZ
able
Because there is interference from a strong source of radio waves,
no signals from the tire pressure sensors are detected. The tire
pressure monitor is temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been resolved.
TirePress. SenZ
sor(s) Missing
There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display. X Have the faulty tire pressure sensor replaced at a qualified spe-
cialist workshop.
Tire Pressure MonZ
itor Inoperative
No Wheel Sensors
The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes.
TirePress.Monitor
Inoperative
The tire pressure monitor is faulty.
X Visit a qualified specialist workshop.
Vehicle
Display messagesPossible causes/consequences and MSolutions
Shiftto'P'or'N'
to Start Engine
You have attempted to start the engine with the transmission in
positionRor D.
X Shift the transmission to position Por N.
Apply Brake
to Shift from 'P'
You have attempted to move the transmission selector lever to
position D,R or Nwithout depressing the brake pedal.
X Depress the brake pedal.
238Display messages
On-board computer and displays
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Display messagesPossible causes/consequences andMSolutions
Risk of Rolling
Transmission Not
in P
You have switched off the engine with the Start/Stop button and
opened the driver's door.
You wanted to lock the vehicle.
A warning tone also sounds.or
You have turned off the engine with the Start/Stop button and
opened the driver's door while the transmission was in position N.
GWARNING
The vehicle may roll away.
There is a risk of an accident.
X Shift the transmission to position P.
X Secure the vehicle against rolling away ( Ypage 161).
While the HOLD function or DISTRONIC PLUS is active, you have:
R opened the driver's door and released the seat belt or
R switched off the engine or
R opened the hood
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 Shift the transmission to position P.
You can restart the engine.
Service Required
Do Not Shift Gears
Visit Dealer
You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,N or Pis selected:
X Notify a qualified specialist workshop or breakdown service.
Display messages239
On-board computer and displays
Z
Page 242 of 358
Display messagesPossible causes/consequences andMSolutions
Clutch Overheated
AvoidPullingAway
Engage/Diseng.
Clutch Quickly if
Required
The clutch is under considerable load and the permitted operating
temperature has been exceeded. A warning tone also sounds.
Avoid frequent pulling away and driving at walking pace over lon-
ger distances.
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 Leave the engine running.
The clutch is cooled more quickly with the engine running.
or X If possible, continue driving at a steady speed.
X Remove your foot from the clutch pedal and do not allow the
clutch to slip.
The clutch may also cool down during the journey.
It may take several minutes for it to cool down. When the clutch
has cooled down, the display message disappears. The clutch is
fully operational again.
NThe trunk lid is open.
X Close the trunk lid.
MThe hood is open.
GWARNING
The open hood may block your view when the vehicle is in motion.
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.
X Secure the vehicle against rolling away ( Ypage 161).
X Close the hood.
CAt least one door is open. A warning tone also sounds.
X Close all the doors.
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On-board computer and displays
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Display messagesPossible causes/consequences andMSolutions
Ð
PowerSteeringMalZ
function See OperZ
ator's Manual
The power steering is malfunctioning.
A warning tone also sounds.
GWARNING
You will need to use more force to steer.
There is a risk of an accident.
X Check whether you are able to apply the extra force required.
X If you are able to steer safely: carefully drive on to a qualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.
J
Trunk Partition
Open
The trunk partition is open.
X Close the trunk partition ( Ypage 90).
Phone No ServiceYour vehicle is outside the network provider's transmitter/
receiver range. X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display.
K
Decrease Speed
You wanted to open the roof while the vehicle was in motion. XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Open the roof ( Ypage 88).
K
Vario-Roof LowerZ
ing
The roof is not fully opened or closed. The hydraulics are depres-
surized.
X Fully open or close the roof ( Ypage 88).
K
Open/Close Vario-
Roof Completely
The roof is not locked.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Push or pull the roof switch until the roof is fully open or closed
( Y page 88).
K
Start Engine See
Operator's Manual
The on-board voltage is too low.
X Start the engine.
X After approximately ten seconds, repeat the opening or closing
procedure ( Ypage 88).
Display messages241
On-board computer and displays
Z
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Display messagesPossible causes/consequences andMSolutions
Â
Don't Forget Your
Key
The SmartKey is not in the ignition lock. You have opened the
driver's door with the engine switched off.
This display message is displayed for a maximum of 60 seconds
and is simply a reminder. X
Take the SmartKey with you when you leave the vehicle.
Â
Key Not Detected
(red display message)
The SmartKey is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
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 Locate the SmartKey.
X Press aon the steering wheel to confirm the display mes-
sage.
Because there is interference from a strong source of radio waves,
the key is not detected whilst the engine is running.
A warning tone also sounds.
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 Insert the SmartKey into the ignition lock and bring into key
mode.
Â
Key Not Detected
(white display mes-
sage)
The SmartKey is currently undetected.
X Change the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
X Insert the SmartKey into the ignition lock and turn it to the
desired position.
Â
Remove'Start'ButZ
ton and Insert Key
The SmartKey is continually undetected.
KEYLESS-GO is temporarily malfunctioning or is defective. A warn-
ing tone also sounds.
X Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop.
Display messages243
On-board computer and displays
Z
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Warning and indicator lamps
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Therefore, some
indicator and warning lamps may light up or flash temporarily. This behavior is non-critical.
These indicator and warning lamps only indicate a malfunction if they light up or flash after
starting the engine or whilst driving.
Safety
Seat belts
ProblemPossible causes/consequences and MSolutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up for 6 seconds.The seat belt warning lamp reminds the driver and front passenger to fasten their seat belts.
X Fasten your seat belt ( Ypage 44).
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to 6 seconds.The driver's seat belt is not fastened.
X Fasten your seat belt ( Ypage 44).
The warning tone ceases.
ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed.The driver or front passenger has not fastened their seat belt.
X Fasten your seat belt ( Ypage 44).
The warning lamp goes out.
There are objects on the front-passenger seat.
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.
244Warning and indicator lamps
On-board computer and displays
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Safety systems
ProblemPossible causes/consequences andMSolutions
$(USA only)
J (Canada only)
The red brake system
warning lamp comes on while the engine is run-
ning. A warning tone
also sounds.There is not enough brake fluid in the brake fluid reservoir.
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 Do not add brake fluid. Adding more will not remedy the mal-
function.
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display.
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic Stability
Program), PRE