coolant level MERCEDES-BENZ SL-CLASS ROADSTER 2013 Owners Manual

Indicator lamp ................................ 126
Maximum cooling
.......................... 128
Notes on
using automatic climate
control ........................................... 124
Overview of systems ...................... 122
Problems with cooling with air
dehumidification ............................ 126
Problem with the rear window
defroster ........................................ 129
Setting the air distribution .............127
Setting the airflow ......................... 127
Setting the air vents ......................131
Setting the climate mode (AIR
FLOW) ............................................ 126
Setting the temperature ................ 127
Switching air-recirculation mode
on/off ............................................ 130
Switching on/off ........................... 125
Switching residual heat on/off ...... 130
Switching the rear window
defroster on/off ............................ 129
Switching the ZONE function on/
off .................................................. 128
Cockpit
see Instrument cluster
Color, setting (TV, video) ..................453
COMAND Active multicontour seat ................ 287
Basic functions .............................. 275
Calling up drive status regulator
(ABC) ............................................. 291
Display ........................................... 271
Examples of operation ................... 273
Importing POIs ............................... 392
Multicontour seat .......................... 286
Seat functions ............................... 286
Settings ......................................... 410
Switching on/off ........................... 275
System settings ............................. 289
COMAND controller ...........................273
COMAND display Cleaning ......................................... 504
Cleaning instructions ..................... 272
Driving conditions menu (AMG
vehicles) ........................................ 183
Driving conditions menu (except
AMG vehicles) ................................ 180Setting ...........................................
289
Switching on/off
........................... 272
Combination switch ..........................112
Compass function ............................. 352
Connecting a USB device .................424
Consumption statistics (on-board
computer) .......................................... 209
Contacts Deleting ......................................... 384
Importing ....................................... 383
Contrast, setting (TV, video) ............453
Convenience closing feature ..............85
Convenience opening feature see Side windows
Coolant (engine)
Checking the level ......................... 498
Display message ............................ 238
Filling capacity ............................... 564
Notes ............................................. 563
Temperature (on-board computer) . 220
Temperature gauge ........................ 205
Warning lamp ................................. 263
Cooling
see Climate control
Copy protection (CD/DVD) ...............432
Cornering light function Display message ............................ 235
Function/notes ............................. 113
Crash-responsive emergency
lighting ............................................... 116
Cruise control Cruise control lever .......................162
Deactivating ................................... 164
Display message ............................ 246
Driving system ............................... 162
Function/notes ............................. 162
Important safety notes .................. 162
Setting a speed .............................. 163
Storing and maintaining current
speed ............................................. 163
Cup holder
Center console .............................. 478
Important safety notes .................. 478
Customer Assistance Center (CAC) ...32
Customer Relations Department .......328
Index

Raising ...........................................
549
Reporting problems .........................32
Securing from rolling away ............ 549
Towing away
.................................. 518
Tow-starting ................................... 518
Transporting .................................. 520
Unlocking (in an emergency) ........... 76
Unlocking (SmartKey) ......................68
Vehicle data ................................... 565
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 565
Vehicle dimensions ...........................565
Vehicle emergency locking ................77
Vehicle identification number see VIN
Vehicle identification plate ..............559
Vehicle level Active Body Control (AMG
vehicles) ........................................ 181
Active Body Control (except AMG
vehicles) ........................................ 179
Display message ............................ 241
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 508
Video Operating the DVD ......................... 212
Overview ........................................ 452
see Video DVD
Video AUX
Setting the picture ......................... 453
Video DVD
Automatic picture shutoff ..............452
DVD menu ..................................... 457
Fast forward/rewind ...................... 455
Function restrictions ...................... 454
Interactive content ........................458
Notes on discs ............................... 453
Operation ....................................... 453
Pause function ............................... 456
Playing conditions .......................... 453
Safety notes .................................. 453
Selecting ........................................ 456
Selecting a film/title ...................... 456
Selecting a scene/chapter ............ 456
Setting the audio format ................ 458
Setting the language ...................... 458Setting the picture .........................
453
Showing/hiding the control menu . 454
Showing/hiding the menu
.............455
Stop function ................................. 455
Subtitles ........................................ 458
Switching to ................................... 454
VIN ...................................................... 559
Voice Control System Settings ......................................... 291
Volume, adjusting
COMAND ....................................... 277
Navigation messages ..................... 277 W
Warning and indicator lamps ABS

................................................ 257
Brakes ........................................... 257
Check Engine ................................. 263
Coolant .......................................... 263
Distance warning ........................... 265
DISTRONIC PLUS ........................... 265
ESP ®
.............................................. 259
ESP ®
OFF ....................................... 260
Fuel tank ........................................ 263
Overview ........................................ 255
PASSENGER AIR BAG OFF
indicator lamp .................................. 43
Reserve fuel ................................... 263
Seat belt ........................................ 256
SPORT handling mode ................... 260
SRS ................................................ 262
Tire pressure monitor .................... 266
Warranty ............................................ 558
Washer fluid Display message ............................ 253
Waypoints
Accepting waypoints for the route . 310
Editing ........................................... 310
Entering ......................................... 308
Weather Band
Searching for a channel ................. 415
Switching on .................................. 414
Weather display (COMAND)
Calling up the weather map ...........395
Information chart ........................... 393
Selecting locations in the
information chart ........................... 39426
Index

Problem Possible causes/consequences and
M SolutionsThe coolant
temperature display is
showing more than
248 ‡
(120 †). The
coolant warning lamp
may also be lit and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 498). Observe the warning
notes as you do so and add coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
At coolant temperatures under 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-and-go traffic. Automatic transmission
Important safety notes
G
WARNING
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than

idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal. G
WARNING
Keep in mind that turning off the engine alone
only will

shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury. Selector lever
Overview of transmission positions !
If the engine speed is too high or if the
vehicle is rolling, do not shift the
transmission directly from D to R, from R
to D or directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in
transmission position D

or R, park position
P is otherwise engaged automatically.
The transmission could be damaged. Selector lever
j
Park position
k Reverse gear Automatic transmission
143
Driving and parking Z

vehicle and do not stand near the vehicle until
the engine has cooled down.
! A display

message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side
(Y page 205).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red

band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
G
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point

do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
The outside temperature display is in the
multifunction display ( Y page 208).
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated ( Y
page 162):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 164):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS

detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Operating the on-board computer
Overview :
Multifunction display
; To switch on the Voice Control System;
see the separate operating instructions
= Right control panel
? Left control panel
A Back button
X To
activate the on-board computer:
turn
the SmartKey to position 1

in the ignition
lock. 206
Displays and operation
On-board computer and displays

Display messages Possible causes/consequences and
M Solutionsb
Auto
Lamp
Function
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
inoperative. 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 Available message is
displayed.
Adaptive Highbeam Assist is operational again. Engine
Display messages Possible causes/consequences and
M Solutions+
Check Coolant
Level See
Operator'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 498).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. ? The fan motor is faulty.
X
At coolant temperatures under 248 ‡(120 †), drive
to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.238
Display messages
On-board computer and displays

Display messages Possible causes/consequences and
M Solutions?
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is under 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under
normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡
(120 †). Display messages
239
On-board computer and displays Z

Engine
Problem Possible 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
R in the fuel system
The emission limit values may be exceeded and the engine may
be running in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you must immediately visit a qualified
specialist workshop

as soon as the yellow Check Engine warning
lamp lights up. This is due to the legal requirements in effect in
these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving. 8
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion.
In addition, the

;
Engine Check warning
lamp may light up. The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed:
close
the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist
workshop. ?
The red coolant
warning lamp lights up
while the engine is
running
and

the coolant
temperature gauge is
at the start of the scale. The temperature sensor for the coolant temperature gauge is
defective.
The
coolant
temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention

to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away ( Y page 154).
X Consult a qualified specialist workshop. Warning and indicator lamps
263
On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions?
The red coolant
warning
lamp
comes on
while the engine is
running. The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 498).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is
under 248

‡ (120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. ?
The red coolant
warning
lamp

comes on
while the engine is
running. A warning tone
also sounds. The coolant temperature has exceeded 248 ‡ (120 †). The
airflow
to
the engine radiator may be blocked or the coolant level
may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not
drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).264
Warning and indicator lamps
On-board computer and displays

Problem Possible causes/consequences and
M SolutionsX
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 498).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡ (120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. Driving systems
Problem Possible causes/consequences and
M Solutions·
The red distance
warning lamp lights up
while the vehicle is in
motion.
A

warning tone
also sounds. You are approaching a vehicle or a stationary obstacle in your line
of travel at too high a speed.
X
Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
Further information on DISTRONIC PLUS ( Y page 166).
Further information on PRE-SAFE ®
Brake (Y page 63). Warning and indicator lamps
265
On-board computer and displays Z

Adding engine oil
G
WARNING
If engine oil comes into contact with hot
engine parts,
it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Use only engine oils and oil filters that
have been approved for vehicles equipped
with a service system. A list of the engine
oils and oil filters tested and approved in
accordance with the Mercedes-Benz
Specifications for Service Products can be
called up by visiting http://
www.mbusa.com (USA only). More
information about tested and approved
engine oils and oil filters is available from
any authorized Mercedes-Benz Center.
Damage to

the engine or exhaust system is
caused by the following:
R using engine oils and oil filters which
have not been specifically approved for
the service system.
R replacing the engine oil or oil filter after
the replacement interval required by the
service system has elapsed
R using engine oil additives.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic
converter. Have excess oil siphoned off. Example: engine oil cap
X
Turn cap : counter-clockwise and remove
it.
X Add the amount of oil required.
Fill carefully to the maximum mark on the
oil dipstick.
X Replace cap :

on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
i The difference between the minimum
mark and the maximum mark on the oil
dipstick is approximately 1.4 US qt (

1.3l).
i Further information on engine oil
(Y page 562). Checking and adding other service
products
Checking the coolant level G
WARNING
In order to avoid potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of vapor or
coolant leaking

from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant tank if the coolant temperature is
above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant tank contains hot fluid and is under
pressure.498
Engine compartment
Maintenance and care