2014 MERCEDES-BENZ SLK ROADSTER cooling

1, 2, 3 ...
12 V socket see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 223
Function/notes ................................ 60
Important safety notes .................... 60
Warning lamp .................................2 52
Accident
Automatic measures after an acci-
dent ................................................. 51
Activating/deactivating air-recir-
culation mode ................................... .134
Activating/deactivating cooling
with air dehumidification ................. 129
Active light function ......................... 114
ADAPTIVE BRAKE ................................. 66
Adaptive brake lights .......................... 62
Adaptive Highbeam Assist
Display message ............................ 234
Function/notes ............................ .115
Switching on/off ........................... 116
Additional speedometer ................... 213
Additives (engine oil) ........................ 347
Adjusting the headlamp range ......... 112
Air conditioning
General notes ................................ 126
Air filter (white display message) .... 237
Air pressure
see Tyre pressure
Air vents
Important safety notes .................. 135
Setting .......................................... .135
Setting the blower output of the
AIRSCARF vents ............................ .136
Setting the centre air vents ........... 136
Setting the side air vents .............. .136
Switching AIRSCARF on/off .......... 100
Air-conditioning system
see Climate control
Airbag
Headbag .......................................... 47
Introduction ..................................... 45 PASSENGER AIR BAG OFF indica-
tor lamp ..........................................
.41
Airbags
Front airbag (driver, front
passenger ) ....................................... 46
Important safety gu idelines ............ .45
Sidebag ............................................ 47
Triggering ......................................... 47
AIRGUIDE ............................................. 91
AIRSCARF
Problem (malfunction) ................... 100
Switching on/of f........................... 100
AIRSCARF vents
Setting the blower output .............. 136
Alarm
ATA (Anti-Theft Alarm system )......... 68
Switching off (ATA) .......................... 68
Switching the function on/off
(ATA) ................................................ 68
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 215
AMG menu (on-board computer) ..... 219
Anti-glare film .................................... 277
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 167
Ashtray ............................................... 268
Assistance display (on-board com-
puter) .................................................. 210
Assistance menu (on-board com-
puter) .................................................. 210
ASSYST PLUS
Displaying a service message ........ 285
Hiding a service message .............. 285
Resetting the service interval dis-
play ................................................ 285
Service message ............................ 285
Special service requirements ......... 286
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 68
Function ........................................... 68
Switching off the alarm .................... 68 4
Index

Convenience opening/closing
(air-recirculation mode) ................
.134
Cooling with air dehumidification .. 129
Demisting the windows .................. 133
Demisting the windscreen ............. 133
Indicator lamp ................................ 131
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 128
Notes on using the air-condition-
ing system ..................................... 127
Overview of systems ..................... .126
Problem with the rear window
heating .......................................... 134
Problems with cooling with air
dehumidification ............................ 131
Setting the air distribution ............. 132
Setting the air vents ..................... .135
Setting the airflow ......................... 132
Setting the temperature ................ 131
Switching air-recirculation mode
on/off ............................................ 134
Switching on/off ........................... 129
Switching residual heat on/off ...... 135
Switching the rear window heat-
ing on/off ...................................... 133
Switching the ZONE function on/
off ................................................. .132
THERMOTRONIC (2-zone) auto-
matic climate control ..................... 128
Cockpit
Overview .......................................... 28
see Instrument cluster
Collapsible emergency spare
wheel
see Emergency spare wheel
COMAND display
Cleaning ......................................... 290
Combination switch .......................... 113
Consumption statistics (on-board
computer) .......................................... 204
Convenience closing feature .............. 85
Convenience opening feature
see Side windows
Convenience opening/closing (air-
recirculation mode) ........................... 134
Coolant (engine)
Checking the level ......................... 283 Display message ............................ 234
Important safety notes .................. 348
Temperature (on-board com-
puter) ............................................. 219
Temperature gauge ........................ 200
Warning lamp ................................. 258
Cooling
see Climate control
Copyright ............................................. 26
Cornering light function
Display message ............................ 231
Function/notes ............................ .114
Crash-responsive emergency light-
ing ....................................................... 117
Cruise control
Cruise control lever ....................... 169
Deactivating ................................... 171
Display message ............................ 241
Driving system ............................... 168
Important safety notes .................. 169
LIM indicator lamp ......................... 169
Selecting ........................................ 169
Setting a speed .............................. 170
Storing and maintaining current
speed ............................................. 170
Cup holder
Centre console .............................. 267
Important safety notes .................. 267 D
Dashboard see Instrument cluster
Data
see Technical data
Daytime driving lights
Display message ............................ 233
Function/notes ............................ .111
Switching on/off (on-board com-
puter) ............................................. 214
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 23
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 215
Interior lighting .............................. 216
Diagnostics connection ......................23 Index
7

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 24). Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the "demist windscreen" function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. Optimum operation is only
achieved when the side windows and the roof
are closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 135).
i Ventilate the vehicle for a brief period
during warm weather. This will speed up the
cooling process, and the desired vehicle
interior temperature will be reached more
quickly. i
The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odours. A clogged filter reduces the amount of air supplied to the vehicle
interior. For this reason, you should alwaysobserve the interval for replacing the filter,
which is specified in the Service Booklet. As this depends on environmental conditions,
e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet. 126
Overview of climate control systemsClimate control

Control panel for air-conditioning system
:
To set the temperature (Y page 131)
; To activate/deactivate the residual heat function (Y page 135)
= To set the air distribution (Y page 132)
? To demist the windscreen (Y page 133)
A To activate/deactivate cooling with air dehumidification (Y page 129)
B To activate/deactivate air-recirculation mode (Y page 134)
C To set the airflow (Y page 132)
D To switch the rear window heating on/off (Y page 133)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of tips and rec-
ommendations for optimum use of the air-
conditioning system.
R Switch on cooling with air dehumidification
using the ¿button. The indicator lamp
in the ¿button lights up.
R Set the temperature to 22 †.
R Recommendation for air distribution in
winter: adjust the Oand¯ settings.
Recommendation for air distribution in summer: adjust the Psetting. R
Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up as no fresh air is drawn into
the vehicle in air-recirculation mode.
ECO start/stop function During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require full climate control capa-
city, the ECO start/stop function can be
deactivated by pressing the ECO button
(Y page 148). Overview of climate control systems
127Climate control

Control panel for THERMOTRONIC automatic climate control (2-zone)
:
To set the temperature, left (Y page 131)
; To demist the windscreen (Y page 133)
= To switch the ZONE function on/off
? To activate/deactivate cooling with air dehumidification (Y page 129)
To activate/deactivate the residual heat function (Y page 135)
A To switch the rear window heating on/off (Y page 133)
B To set the temperature, right (Y page 131)
C To activate/deactivate air-recirculation mode (Y page 134)
D To set the air distribution (Y page 132)
E To increase the airflow (Y page 132)
F To reduce the airflow (Y page 132)
G To switch climate control on/off (Y page 129)
H To set climate control to automatic mode (Y page 131)Optimum use of THERMOTRONIC
automatic climate control
Automatic climate control The following contains instructions and rec-
ommendations to enable you to get the most
out of your THERMOTRONIC automatic cli-
mate control.
R Activate climate control using the Ãand
Á buttons on the control panel of the
climate control. The indicator lamps in the
à andÁ buttons light up.
R Set the temperature to 22 †. R
Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up, as no fresh air is drawn into
the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for 128
Overview of climate control systemsClimate control

the front-passenger side as well. The indi-
cator lamp in the ábutton 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 deac-
tivated with the ignition switched off.
ECO start/stop function During automatic engine switch-off, the cli-
mate control only operates at a reduced capa- city. If you require full climate control capa-
city, the ECO start/stop function can be
deactivated by pressing the ECO button
(Y page 148). Operating the climate control system
Switching climate control on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could mist up.
Therefore, only switch off climate control
briefly.
i Activate climate control primarily using
the à button (Y page 131).
Air-conditioning system X
Turn the key to position 2in the ignition
lock (Y page 141).
X To switch on: turn airflow control C
clockwise to the desired position (except
position 0) (Ypage 127).
X To switch off: turn airflow control Canti-
clockwise to position 0(Ypage 127). THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition
lock (Y page 141).
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton 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 previous settings are reactivated.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating the cooling
with air dehumidification function
General notes If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can mist up more quickly. Therefore,
only switch off cooling with air dehumidifica-
tion for a short period.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of the vehicle when cooling mode is active. Thisis normal and not a sign that there is a mal-
function. Operating the climate control system
129Climate control

Activating/deactivating
X
To switch on: press the¿orÁ but-
ton.
The indicator lamp in the ¿orÁ
button lights up.
X To switch off: press the¿orÁ
button.
The indicator lamp in the ¿orÁ
button goes out. The "Cooling with air dehu- midification" function has a delayed switch-
off feature. 130
Operating the climate control systemClimate cont
rol

Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and
M
MSolutions The indicator lamp in
the
¿/Á button
flashes three times or
remains off. The cool-
ing with air dehumidifi-
cation system cannot
be switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X Visit a qualified specialist workshop. Setting climate control to automatic
mode
General notes Automatic mode is only available with
THERMOTRONIC automatic air conditioning.
In automatic mode, the set temperature is
maintained automatically at a constant level. The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If desired, cooling with
air dehumidification can be deactivated.
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi- cle will also not be dehumidified. The win-
dows can mist up more quickly. Therefore,
only switch off cooling with air dehumidifica-
tion for a short period.
Activating/switching X
Turn the key to position 2in the ignition
lock (Y page 141).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the
_ button.
or X Press the IorK button.
The indicator lamp in the Ãbutton goes
out. Setting the temperature
Air-conditioning system X
Turn the key to position 2in the ignition
lock (Y page 141).
X To increase/reduce: turn control:
clockwise or anti-clockwise (Y page 127).
Only change the temperature setting in
small increments. Start at 22 †.
i If you turn control
:anti-clockwise to
the lowest temperature setting, air-recircu- lation mode may activate automatically,
depending on the outside temperature.
THERMOTRONIC automatic climate
control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the key to position 2in the ignition
lock (Y page 141).
X To increase/reduce: turn control:orB
clockwise or anti-clockwise (Y page 128).
Only change the temperature setting in
small increments. Start at 22 †. Operating the climate control system
131Climate control