2015 MERCEDES-BENZ CLS-Class cooling

1, 2, 3 ...
4ETS (Electronic Traction System) see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent all-wheel
drive)
Function/notes .............................1 97
12 V socket
see Sockets
360° camera
Cleaning ......................................... 322
Function/notes ............................ .209 A
ABS (Anti-lock Braking System) Display message ............................ 246
Function/notes ................................ 70
Warning lamp ................................. 276
Accident
Automatic measures after an acci-
dent ................................................. 63
Activating/deactivating cooling
with air dehumidification ................. 138
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 237
Display message ............................ 263
Function/informatio n.................... 218
Active Driving Assistance package .. 218
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 237
Display message ............................ 263
Function/information .................... 221
Active multicontour seat
Adjusting (on the seat) .................. 110
Active Parking Assist
Detecting parking spaces .............. 201
Display message ............................ 264
Exiting a parking space .................. 203
Function/note s............................. 200
Important safety notes .................. 200
Parking .......................................... 202
ADAPTIVE BRAKE ................................. 79
Adaptive Brake Assist
Function/note s................................ 75 Adaptive Damping System (ADS)
..... 194
Adaptive Highbeam Assist
Display message ............................ 258
Function/note s............................. 125
Switching on/of f........................... 126
Additives (engine oil) ........................ 389
Air bags
Deployment ..................................... 59
Display message ............................ 254
Front air bag (driver, front
passenger) ....................................... 51
Important safety notes .................... 50
Introduction ..................................... 50
Knee bag .......................................... 52
Occupant Classification System
(OCS) ............................................... 53
PASSENGER AIR BAG OFF indica-
tor lamp ........................................... 45
Pelvis air ba g................................... 52
Side impact air bag .......................... 52
Window curtain air bag .................... 53
AIR FLOW ........................................... 140
Air vents
Glove box ....................................... 145
Important safety notes .................. 145
Rear ............................................... 146
Setting ........................................... 145
Setting the center air vents ........... 145
Setting the side air vents ............... 145
Air-conditioning system
see Climate control
AIRMATIC
Display message ............................ 261
Function/note s............................. 193
Alarm
ATA (Anti-Theft Alarm system )......... 81
Switching off (ATA) .......................... 81
Switching the function on/off
(ATA) ................................................ 81
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 239
Setting the color (on-board com-
puter) ............................................. 239
AMG adaptive sport suspension
system ................................................ 195 4
Index

Child-proof locks
Important safety notes .................... 68
Rear door s ...................................... .69
Children
Special seat belt retractor .............. .64
Cigarette lighter ................................ 297
Cleaning
Mirror turn signal .......................... .321
Climate control
Automatic climate control (3-
zone) .............................................. 136
Controlling automatically .............. .140
Cooling with air dehumidification .. 138
Defrosting the windows ................. 143
Defrosting the windshield .............. 142
Dual-zone automatic climate con-
trol ................................................. 133
General notes ................................ 132
Indicator lamp ................................ 140
Information about using auto-
matic climate control ..................... 138
Information about using dual-zone
automatic climate control .............. 134
Maximum cooling .......................... 143
Overview of systems ..................... .132
Problem with the rear window
defroster ........................................ 144
Problems with cooling with air
dehumidification ............................ 140
Rear control panel ......................... 136
Refrigerant ..................................... 392
Refrigerant filling capacity ............. 392
Setting the air distribution ............. 141
Setting the air vents ..................... .145
Setting the airflow ......................... 142
Setting the climate mode (AIR
FLOW) ............................................ 140
Setting the temperature ................ 141
Setting the temperature with 3-
zone automatic climate control ..... 141
Setting the temperature with dual- zone automatic climate control ..... 141
Switching air-recirculation mode
on/off ............................................ 144
Switching on/off ........................... 138
Switching residual heat on/off ...... 144
Switching the rear window
defroster on/off ............................ 143 Switching the ZONE function on/
off .................................................
.142
Cockpit
Overview .......................................... 32
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 381
see Emergency spare wheel
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 236
Display message ............................ 249
Operation/notes .............................. 73
COMAND display
Cleaning ......................................... 322
Combination switch .......................... 124
Consumption statistics (on-board
computer) .......................................... 230
Convenience box ............................... 291
Convenience closing feature .............. 98
Convenience opening feature ............ 98
Coolant (engine)
Checking the level ......................... 315
Display message ............................ 258
Filling capacity ............................... 391
Important safety notes .................. 390
Temperature (on-board computer, AMG vehicles) ................................ 242
Temperature gauge ........................ 226
Warning lamp ................................. 280
Cooling
see Climate control
Copyright ............................................. 29
Cornering light function
Display message ............................ 255
Function/notes ............................ .125
Crash-responsive emergency light-
ing ....................................................... 128
Cruise control
Activation conditions ..................... 179
Cruise control lever ....................... 179
Deactivating ................................... 180
Display message ............................ 266
Driving system ............................... 178
Function/notes ............................ .178
Important safety notes .................. 178
Setting a spee d.............................. 180 Index
7

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
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 fog up.
To prevent the windows from fogging 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 defrost windshield 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 can only be operated when
the engine is running. Optimum operation is
only achieved 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 144).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 98). 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 odors. 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 Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet. 132
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
Canada only
:
Sets the temperature, left (Y page 141)
; Defrosts the windshield (Y page 142)
= Switches the ZONE function on/off (Y page 142)
? Switches cooling with air dehumidification on/off (Y page 138)
A Switches the rear window defroster on/off (Y page 143)
B Sets the temperature, right (Y page 141)
C Switches air-recirculation mode on/off (Y page 144)
D Sets the air distribution (Y page 141)
E Increases the airflow (Y page 142)
F Reduces the airflow (Y page 142)
G Activates/deactivates the air conditioning (Y page 138)
H Sets climate control to automatic (Y page 140) Overview of climate control systems
133Climate control

USA only
:
Sets the temperature, left (Y page 141)
; Defrosts the windshield (Y page 142)
= Switches the maximum cooling MAX COOL on or off (Y page 143)
? Switches cooling with air dehumidification on/off (Y page 138)
A Switches the rear window defroster on/off (Y page 143)
B Sets the temperature, right (Y page 141)
C Switches air-recirculation mode on/off (Y page 144)
D Sets the air distribution (Y page 141)
E Increases the airflow (Y page 142)
F Reduces the airflow (Y page 142)
G Activates/deactivates the air conditioning (Y page 138)
H Sets climate control to automatic (Y page 140)Optimum use of dual-zone climate
control
Climate control system The following contains notes and recommen-
dations on optimum use of dual-zone auto-
matic climate control.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps above
the à and¿ buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again. R
Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since 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
the front-passenger side as well. The indi-
cator lamp above the ábutton goes
out.
R If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio or
COMAND display (see separate operating 134
Overview of climate control systemsClimate control

Control panel for 3-zone automatic climate control
Canada only
Front control panel
: Sets the temperature, left (Y page 141)
; Defrosts the windshield (Y page 142)
= Switches the residual heat on or off (Y page 144)
? Switches cooling with air dehumidification on/off (Y page 138)
A Switches the rear window defroster on/off (Y page 143)
B Sets the temperature, right (Y page 141)
C Switches the ZONE function on/off (Y page 142)
D Activates/deactivates the air conditioning (Y page 138)
E Sets the air distribution (Y page 141)
F Increases the airflow (Y page 142)
G Reduces the airflow (Y page 142)
H Adjusts the climate mode settings (Y page 140)
I Switches air-recirculation mode on/off (Y page 144)
J Sets climate control to automatic (Y page 140)
Rear control panel
K Increases the airflow (Y page 142)
L Reduces the airflow (Y page 142)
M Display
N Reduces the temperature (Y page 141)
O Increases the temperature (Y page 141)136
Overview of climate control systemsClimate control

USA only
Front control panel
: Sets the temperature, left (Y page 141)
; Defrosts the windshield (Y page 142)
= Switches the maximum cooling MAX COOL on or off (Y page 143)
? Switches cooling with air dehumidification on/off (Y page 138)
A Switches the rear window defroster on/off (Y page 143)
B Sets the temperature, right (Y page 141)
C Switches the ZONE function on/off (Y page 142)
D Activates/deactivates the air conditioning (Y page 138)
E Sets the air distribution (Y page 141)
F Increases the airflow (Y page 142)
G Reduces the airflow (Y page 142)
H Adjusts the climate mode settings (Y page 140)
I Switches air-recirculation mode on/off (Y page 144)
J Sets climate control to automatic (Y page 140)
Rear control panel
K Increases the airflow (Y page 142)
L Reduces the airflow (Y page 142)
M Display
N Reduces the temperature (Y page 141)
O Increases the temperature (Y page 141) Overview of climate control systems
137Climate control

Optimum use of 3-zone automatic cli-
mate control
Climate control system The following contains instructions and rec-
ommendations to enable you to get the most
out of your 3-zone automatic climate control.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps above
the à and¿ buttons light up.
R In automatic mode, you can also use the
ñ button to set the climate mode
(FOCUS, MEDIUM or DIFFUSE). The
MEDIUM level is recommended.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since 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
the front-passenger side and the rear com- partment as well. The indicator lamp above
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 deac-
tivated with the ignition switched off.
R If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio or
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 154). Operating the climate control sys-
tems Activating/deactivating the air condi-
tioning
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
i Activate climate control primarily using
the à button (Y page 140).
Activating/deactivating X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
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 previously selected settings are
restored.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up. 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- 138
Operating the climate control systemsClimate control