2015 MERCEDES-BENZ S-CLASS COUPE cooling

1, 2, 3 ...
4ETS (Electronic Traction System) see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 212
4MATIC off-road system ...................212
12 V socket
see Sockets
360° camera
Cleaning ......................................... 350
Function/notes ............................ .224 A
ABS (Anti-lock Braking System) Display message ............................ 267
Function/notes ................................ 70
Important safety notes .................... 70
Warning lamp ................................. 305
Accident
Automatic measures after an acci-
dent ................................................. 60
Activating/deactivating air-recir-
culation mode ................................... .146
Activating/deactivating cooling
with air dehumidification ................. 141
Activating/deactivating Night
View Assist Plus
With spotlight function ................... 235
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 260
Display message ............................ 289
Function/notes ............................ .236
Active Body Control (ABC)
Display message ............................ 288
Active Body Control ABC
Function/notes ............................ .207
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 261
Display message ............................ 289
Function/notes ............................ .239
Active light function ......................... 129
Active Light System
Display message ............................ 282 Active multicontour seat
.................. 113
Active Parking Assist
Detecting parking spaces .............. 216
Display message ............................ 290
Exiting a parking space .................. 218
Function/notes ............................ .215
Important safety notes .................. 215
Parking .......................................... 217
ADAPTIVE BRAKE ................................. 77
Adaptive Brake Assist
Function/notes ................................ 74
Adaptive brake lights .......................... 75
Adaptive Damping System (ADS) ..... 211
Adaptive Highbeam Assist Plus
Display message ............................ 283
Function/notes ............................ .130
Switching on/off ........................... 131
Additional speedometer ................... 264
Additives (engine oil) ........................ 408
Air conditioning
General notes ................................ 138
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 156
Important safety notes .................. 155
Rear ............................................... 157
Setting .......................................... .155
Setting the centre air vents ........... 156
Setting the side air vents .............. .156
Air-conditioning system
see Climate control
Airbag
Automatic front-passenger front
airbag deactivatio n.......................... 51
Introduction ..................................... 48
PASSENGER AIR BAG indicator
lamps ............................................... 43
Airbags
Display message ............................ 279
Front airbag (driver, front
passenger) ....................................... 50
Important safety guidelines ............. 48
Kneebag ........................................... 50
Sidebag ............................................ 50
Triggering ......................................... 57
Windowba g...................................... 51 4
Index

Care
360° camera ................................ .350
Automatic car wash ....................... 345
Carpets .......................................... 353
Display .......................................... .351
Exhaust pipe .................................. 351
Exterior lighting ............................ .349
Gear or selector lever .................... 352
High-pressure cleaner .................... 347
Interior .......................................... .351
Matt paintwork .............................. 348
Night View Assist Plus ................... 351
Notes ............................................. 345
Paint .............................................. 347
Plastic trim ................................... .352
Reversing camera .......................... 350
Roof lining ...................................... 353
Seat belt ........................................ 353
Seat cover ..................................... 352
Sensors ......................................... 349
Steering wheel ............................... 352
Trim pieces ................................... .352
Washing by hand ........................... 347
Wheels .......................................... .348
Windows ........................................ 348
Wiper blades .................................. 349
Wooden trim .................................. 352
CD player (on-board computer) ........254
Central locking
Locking/unlocking (key ).................. 85
Centre console
Overview .......................................... 36
Stowage space .............................. 317
Centre console in the rear com-
partment
Stowage compartment .................. 319
Changing the media source ............. 254
Child
Restraint system .............................. 61
Child seat
Forward-facing restraint system ...... 64
ISOFIX .............................................. 62
On the front-passenger sea t............ 63
Rearward-facing restraint system .... 64
Recommendations ........................... 68
Suitable positions ............................ 65
Top Tether ....................................... 62
Cigarette lighter ................................ 324 Cleaning
Mirror turn signal ........................... 349
Climate control
Automatic air conditioning ............. 139
Auxiliary heating/ventilation .......... 149
Controlling automaticall y............... 142
Convenience opening/closing
(air-recirculation mode) ................. 146
Cooling with air dehumidification .. 141
Demisting the windows .................. 144
Demisting the windscreen ............. 144
ECO start/stop function ................ 140
Indicator lamp ................................ 142
Ionisation ....................................... 149
Notes on using the automatic cli-
mate control .................................. 140
Overview of systems ...................... 138
Perfume atomizer .......................... 147
Problem with the rear window
heating .......................................... 146
Problems with cooling with air
dehumidification ............................ 142
Setting the air distribution ............. 143
Setting the air vents ...................... 155
Setting the airflow ......................... 144
Setting the climate mod e............... 143
Setting the temperature ................ 143
Switching air-recirculation mode
on/of f............................................ 146
Switching on/of f........................... 141
Switching residual heat on/off ...... 147
Switching the rear window heat-
ing on/of f...................................... 145
Switching the synchronisation
function on and off ........................ 144
Cockpit
Overview .......................................... 30
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 260
Display message ............................ 274
Operation/note s.............................. 72
COMAND display
Cleaning ......................................... 351
Combination switch .......................... 128
Consumption statistics (on-board
computer) .......................................... 250
Convenience closing feature ............ 101 Index
7

Convenience opening feature
.......... 100
Convenience opening/closing (air-
recirculation mode) ...........................146
Coolant (engine)
Checking the level ......................... 342
Display message ............................ 283
Important safety notes .................. 409
Temperature gauge ........................ 245
Warning lamp ................................. 310
Coolbox .............................................. 326
Cooling
see Climate control
Copyright ............................................. 28
Cornering light function
Display message ............................ 280
Function/notes ............................ .129
Crash-responsive emergency light-
ing ....................................................... 133
Crosswind Assist (vehicles with
MAGIC BODY CONTROL) ................... 207
Crosswind Assist (vehicles with-
out MAGIC BODY CONTROL) ...............77
Cruise control
Calling up the speed last store d.... 190
Cruise control lever ....................... 189
Deactivating ................................... 191
Display message ............................ 293
Driving system ............................... 189
General notes ................................ 189
Important safety notes .................. 189
LIM indicator lamp ......................... 189
Selecting ........................................ 190
Setting a speed .............................. 191
Storing and maintaining current
speed ............................................. 190
Cup holder
Centre console .............................. 322
Important safety notes .................. 322
Rear compartment ......................... 323 D
Data see Technical data
Data carrier
Selecting ........................................ 254
Daytime driving lights
Display message ............................ 282 Function/note
s............................. 127
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 25
Diagnostics connection ...................... 25
Digital speedometer ......................... 251
Dipped-beam headlamps
Display message ............................ 280
Setting for driving abroad (sym-
metrical) ........................................ 126
Setting for driving on the right/
left ................................................. 263
Switching on/of f........................... 127
DIRECT SELECT lever
Automatic transmission ................. 169
Display
see Display message
see Warning and indicator lamps
Display message
Driving system s............................. 287
Display messages
ASSYST PLU S................................ 344
Calling up (on-board computer) ..... 266
Engine ............................................ 283
General information ....................... 266
Hiding (on-board computer) ........... 266
Introduction ................................... 266
Key ................................................ 301
Lights ............................................. 280
Safety systems .............................. 267
Tyres .............................................. 295
Vehicle ........................................... 297
Distance warning function
Function/note s................................ 73
Distance warning signal (warning
lamp) .................................................. 312
DISTRONIC PLUS
Activating ....................................... 196
Activation conditions ..................... 196
Cruise control lever ....................... 196
Deactivating ................................... 201
Display message ............................ 291
Displays in the instrument cluster .. 200 Driving tip s.................................... 202
Driving with DISTRONIC PLUS ....... 197
Function/note s............................. 194
Important safety notes .................. 195
Selecting ........................................ 196 8
Index

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 26). 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 activate air-recirculation mode only briefly
R activate the "Cooling with air dehumidifica-
tion" function
R activate the windscreen demisting function
briefly, if required
Climate control regulates the temperature
and air humidity in the vehicle interior. The air
filter cleans the air, thus improving the inte-
rior climate.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. Optimum climate control is only ach-
ieved with the side windows and roof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 147).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 100).
This will speed up the cooling process and
the desired 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.
i It is possible that the blower may be acti-
vated automatically 60 minutes after the
key has been removed depending on vari-
ous factors, e.g. the outside temperature.
The vehicle is then ventilated for
30 minutes to dry the automatic climate
control. 138
Overview of climate control systemsClimate control

Vehicles without auxiliary heating
:
To set climate control to automatic, left (Y page 142)
; To set the temperature, left (Y page 143)
= To set the airflow, left (Y page 144)
? To switch air-recirculation mode on/off (Y page 146)
A To demist the windscreen (Y page 144)
B To call up the COMAND Online climate control menu (see the separate operating instruc-
tions)
C To switch the rear window heating on/off (Y page 145)
D To switch cooling with air dehumidification on/off (Y page 141)
To switch the residual heat on/off (Y page 147)
E To set the airflow, right (Y page 144)
F To set the temperature, right (Y page 143)
G To set climate control to automatic, right (Y page 142)Notes on using the automatic climate
control
Automatic climate control Below, you can find a number of notes and
recommendations to help you use climate
control optimally.
R Activate climate control using the Ã
rocker switch. The indicator lamp in the
à rocker switch lights 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 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. The 140
Overview of climate control systemsClimate control

residual heat function is deactivated when
the ignition is switched on.
ECO start/stop function During automatic engine switch-off, the cli-
mate control only operates at a reduced capa- city. If you require the full climate control out-
put, you can switch off the ECO start/stop
function by pressing the ECO button
(Y page 166). Operating the climate control system
Switching the 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.
Switch on climate control primarily using theà rocker switch (Y page 142).
Activating/deactivating X
Turn the key to position 2in the ignition
lock (Y page 161).
X To activate: press thetor! rocker
switch up or down.
The COMAND Online climate control menu
opens.
X Activate climate control via the air-condi-
tioning setting bar in COMAND Online (see
the separate operating instructions).
X To deactivate: press thetor!
rocker switch up or down.
The COMAND Online climate control menu
opens.
X Deactivate climate control via the air-con-
ditioning setting bar in COMAND Online
(see the separate operating instructions). Switching cooling with air dehumidi-
fication on/off
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,
deactivate the "Cooling with air dehumidifi-
cation" function only briefly.
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.
Activating/deactivating Vehicles with auxiliary heating
X Activate/deactivate the cooling with air
dehumidification function via COMAND
Online (see the separate operating instruc-
tions).
Vehicles without auxiliary heating X To activate: press theÁrocker switch
up or down.
The indicator lamp above the rocker switch lights up.
or
X Activate the "Cooling with air dehumidifi-
cation" function via COMAND Online (see
the separate operating instructions).
X To deactivate: press theÁrocker
switch up or down.
The indicator lamp above the rocker switch
goes out.
or X Deactivate the "Cooling with air dehumidi-
fication" function via COMAND Online (see
the separate operating instructions). Operating the climate control system
141Climate control

Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and
M
MSolutions Vehicles with auxili-
ary heating:
cooling
with air dehumidifica-
tion can no longer be
switched on using
COMAND Online (see
the separate operating
instructions).
Vehicles without aux- iliary heating: the indi-
cator lamp in the Á
button flashes three
times or remains off.
Cooling with air dehu-
midification can also no longer be switched on
using COMAND Online
(see the separate oper-
ating instructions). The cooling with air dehumidification function has been deactiva-
ted due to a malfunction.
X Consult a qualified specialist workshop. Setting climate control to automatic
mode
General notes 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,
deactivate the "Cooling with air-dehumidifi-
cation" function only briefly. Setting climate control to automatic
mode X
Turn the key to position 2in the ignition
lock (Y page 161).
X Set the desired temperature using the
w rocker switch.
or
X Set the desired temperature using
COMAND Online (see the separate operat-
ing instructions).
X To activate: press theÃrocker switch
up or down.
The indicator lamp in the Ãrocker
switch lights up.
X To switch to manual operation: press the
K rocker switch up or down.
or X Set the airflow using COMAND Online (see
the separate operating instructions). 142
Operating the climate control systemClimate control

b
Directs the airflow through the centre
and side air vents as well as the demis-
ter vents
W Sets the air distribution to automatic
Setting the air distribution using
COMAND Online The air distribution for the left and right sides
of the driver and front passenger area can be adjusted using COMAND Online (see the sep-
arate operating instructions). Setting the airflow
General notes You can select different airflow settings for
the driver's and front-passenger sides.
Setting the airflow X
Turn the key to position 2in the ignition
lock (Y page 161).
X To increase or reduce: press theK
rocker switch up or down.
or X Set the airflow using COMAND Online (see
the separate operating instructions). Activating/deactivating the synchro-
nisation function
Climate control can be set centrally using the synchronisation function. The settings for
temperature, air distribution and airflow on
the driver's side are adopted for the front-
passenger side.
X To activate/deactivate: activate or deac-
tivate the synchronisation function using
COMAND Online (see the separate operat- ing instructions).
The synchronisation function switches off, if
the settings for the front-passenger side are
changed. Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the front side windows.
Switch off the windscreen demisting function
as soon as the windscreen is clear again.
X Turn the key to position 2in the ignition
lock (Y page 161).
X To switch on: press the¬rocker
switch on the front control unit up or down.
The indicator lamp in the ¬rocker
switch lights up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
R windscreen heating on
X To deactivate: press the¬rocker
switch up or down.
The indicator lamp in the ¬rocker
switch goes out. The previous settings are
reactivated. Air-recirculation mode
remains deactivated.
or X Press the Ãrocker switch up or down.
or
X Use the tor! rocker switch to call
up the COMAND Online climate control
menu. Demisting the windows
Windows misted up on the inside X
Vehicles with auxiliary heating: activate
the "Cooling with air dehumidification" 144
Operating the climate control systemClimate control