coolant temperature 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

Tires/wheels .................................
552
Vehicle data
................................... 565
TELEAID
Call priority .................................... 489
Downloading destinations
(COMAND) ..................................... 489
Downloading routes .......................492
Emergency call .............................. 487
Geo fencing ................................... 493
Important safety notes .................. 485
Locating a stolen vehicle ............... 491
MB info call button ........................ 488
Remote vehicle locking .................. 491
Roadside Assistance button .......... 488
Search & Send ............................... 490
Self-test ......................................... 486
Speed alert .................................... 493
System .......................................... 486
Triggering the vehicle alarm ........... 493
Vehicle remote malfunction
diagnosis ....................................... 492
Vehicle remote unlocking .............. 490
Telephone
Accepting/ending a call ................364
Accepting a call ............................. 213
Adjusting the volume for calls ....... 277
Calling (outgoing call) ....................365
Connecting a mobile phone
(general information) ..................... 359
De-authorizing a mobile phone ......362
Display message ............................ 252
Ending an active call ...................... 368
Entering a number .........................365
Entering phone numbers ................ 365
External authorization
(Bluetooth ®
) ................................... 361
Function restrictions ...................... 358
General notes ................................ 357
Incoming call ................................. 364
Making a call ................................. 367
Making a call via speed dial ...........365
Menu (on-board computer) ............ 212
Number from the phone book ........ 213
Operating options .......................... 357
Overview ........................................ 357
Overview of functions ....................366
Reception and transmission
volume ........................................... 364Redialing
........................................ 213
Rejecting/accepting a waiting
call ................................................. 367
Rejecting/ending a call ................. 213
Rejecting a call .............................. 364
Safety notes .................................. 357
Sending DTMF tones ......................
366
Single call ...................................... 366
Switching hands-free microphone
on/off ............................................ 366
Text messages (SMS) .................... 375
Toggling ......................................... 368
Using the telephone ....................... 364
see Bluetooth ®

Telephone basic menu
Bluetooth ®
interface ...................... 363
Telephone mode
Redialing ........................................ 365
Telephone number
Entering ......................................... 365
Temperature
Coolant .......................................... 205
Coolant (on-board computer) ......... 220
Engine oil (on-board computer) ...... 220
Outside temperature ...................... 206
Setting (climate control) ................ 127
Text messages (SMS)
Calling the sender .......................... 377
Deleting ......................................... 377
Inbox .............................................. 376
Information and requirements .......375
Reading .......................................... 376
Reading aloud ................................ 376
Storing sender in address book ..... 377
Storing the sender as a new
address book entry ........................ 377
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........65
Immobilizer ...................................... 65
Time
Setting ........................................... 290
Setting summer/standard time ..... 290
Setting the format .........................290
Setting the time ............................. 289
Setting the time/date format ........ 290
Setting the time zone ..................... 290
Timing (RACETIMER) .........................220 Index
23

for the front-passenger side as well. The
indicator
lamp
in the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The
"residual heat" function can only be
activated or deactivated with the ignition
switched off. Operating the climate control
systems
Activating/deactivating climate
control
General notes G
WARNING
When the climate control system is switched
off, the outside air supply and circulation are
also switched

off. Only choose this setting for
a short time when the retractable hardtop
(vario-roof) is closed. Otherwise, the windows
could fog up, impairing visibility and
endangering you and others.
i Switch on climate control primarily using
the à button ( Y page 126).
Activating/deactivating X
Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press button Ã.
The indicator

lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^ button.
The indicator

lamp in the ^ button goes
out. The previously selected settings come
into effect again.
X To switch off: press the ^ button.
The indicator

lamp in the ^ button lights
up. Activating/deactivating cooling with
air dehumidification
General notes G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are

warm. The windows can fog up
more quickly. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
i The cooling with air dehumidification
function uses refrigerant R1234yF. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating Example: ¿ buttonOperating the climate control systems
125
Climate control Z

will be activated. The blower runs at
medium speed.
X To switch off: press the Ì button.
The indicator
lamp in the Ì button goes
out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
vents. If

necessary, direct the airflow away to
a different area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior.
i You can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the center air vents
X
To open a center air vent: turn the
adjuster in one of center air vents :
counterclockwise.
X To close a center air vent: turn the
adjuster in one of center air vents :
clockwise until it engages. Setting the side air vents
:
Side window defroster vent
; Side air vent
X To open a side air vent: turn the adjuster
in side air vent ; counterclockwise.
X To close a side air vent: turn
the adjuster
in side air vent ; clockwise until it
engages. Setting the glove box air vent
! Close the air vent when heating the
vehicle. Setting the air vents
131
Climate control Z

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

Displays and operation
Instrument cluster
Instrument cluster: miles
:
Speedometer with segments ( Y page 206)
; Fuel gauge
= Tachometer (Y page 206)
? Coolant temperature ( Y page 205)
A Multifunction display ( Y page 208)
B Instrument cluster lighting (Y page 205) Instrument lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can

be adjusted using the brightness
control knob.
The brightness control knob is on the bottom
left of the instrument cluster ( Y page 205).
X Turn the brightness control knob counter-
clockwise or clockwise.
If the light switch is set to Ã, T or
L, the brightness is dependent upon
the brightness of the ambient light.
i The light

sensor in the instrument cluster
automatically controls the brightness of
the multifunction display. In daylight, the displays in the instrument
cluster are not lit. Coolant temperature display
G
WARNING
Driving when your engine is overheated can
cause some

fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the Displays and operation
205
On-board computer and displays
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

AMG menu in AMG vehicles
AMG displays :
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
B ECO start/stop function status indicator
( Y page 139)
X Press = or ; on the steering wheel
to select the AMG menu.
Upshift indicator UP = indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP = fades out other
messages until you have shifted up.
When the engine oil temperature is below
80 †, the oil temperature is shown in blue.
Avoid driving

at full engine output during this
time.
SETUP :
Drive program (
C/S/S+/M)
; ESP ®
mode ( ON/OFF) or SPORT handling
mode ( SPORT)
= Suspension tuning (SPORT/COMFORT) SETUP shows the drive program, the ESP
®
(Electronic Stability Program) mode and the
SPORT handling mode.
X Press the = or ; button on the
steering wheel to select the AMG menu.
X Press the 9 button repeatedly until
SETUP is displayed.
or
X Briefly press the AMG button on the center
console (Y page 148).
RACETIMER Displaying and starting RACETIMER
G
WARNING
The RACETIMER feature is only for use on
roads and in conditions where high speed
driving is

permitted. Racing on public roads is
prohibited under all circumstances. The driver
is and must always remain responsible for
following posted speed limits. :
Lap
; RACETIMER
You can start the RACETIMER when the
engine is running or if the SmartKey is in
position
2 in the ignition lock.
X Press the = or ; button on the
steering wheel to select the AMG menu.
X Press the 9 button repeatedly until the
RACETIMER is shown.
X To start: press the a
button to start the
RACETIMER. 220
Menus and submenus
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