2015 MERCEDES-BENZ CLA-Class cooling

1, 2, 3 ...
4ETS (Electronic Traction System) see ETS/4ETS (Electronic Trac-
tion System)
4MATIC
Display message ............................ 244
4MATIC (permanent four-wheel
drive) .................................................. 181
12 V socket
see Sockets A
ABS (Anti-lock Braking System) Display message ............................ 218
Function/notes ................................ 63
Important safety notes .................... 63
Warning lamp .................................2 50
Accident
Automatic measures after an acci-
dent ................................................. 56
Activating/deactivating cooling
with air dehumidification ................. 129
Active Parking Assist
Detecting parking spaces .............. 185
Display message ............................ 237
Exiting a parking space .................. 187
Function/notes ............................ .184
Important safety notes .................. 184
Parking .......................................... 186
ADAPTIVE BRAKE ................................. 70
Adaptive Brake Assist
Function/notes ................................ 66
Adaptive Highbeam Assist
Function/notes ............................ .114
Switching on/off ........................... 114
Additional speedometer ................... 212
Additives (engine oil) ........................ 356
Air bag
Occupant Classification System
(OCS) ............................................... 49
Air bags
Deployment ..................................... 54
Display message ............................ 228
Front air bag (driver, front
passenger) ....................................... 47
Important safety notes .................... 46 Introduction ..................................... 46
Knee bag .......................................... 48
PASSENGER AIR BAG OFF indica-
tor lamp ..........................................
.41
Side impact air ba g.......................... 48
Window curtain air ba g.................... 48
Air vents
Important safety notes .................. 136
Rear ............................................... 137
Setting the center air vents ........... 136
Setting the side air vents ............... 136
Air-conditioning system
see Climate control
Alarm
ATA (Anti-Theft Alarm system )......... 71
Switching off (ATA) .......................... 71
Switching the function on/off
(ATA) ................................................ 71
AMG
Performance Seat .......................... 100
AMG menu (on-board computer) ..... 214
Animals in the vehicle ......................... 62
Ashtray ............................................... 270
Assistance display (on-board com-
puter) .................................................. 209
Assistance menu (on-board com-
puter) .................................................. 209
ASSYST PLUS
Displaying a service message ........ 291
Driving abroad ............................... 291
Hiding a service message .............. 291
Information about Service ............. 291
Resetting the service interval dis-
play ................................................ 291
Service message ............................ 290
Special service requirements ......... 291
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 71
Function ........................................... 71
Switching off the alarm .................... 71
ATTENTION ASSIST
Activating/deactivating ................. 210
Display message ............................ 235
Function/note s............................. 192
Audio menu (on-board computer) .... 207
Audio system
see separate operating instructions 4
Index

C
California Important notice for retail cus-
tomers and lessees .......................... 22
Calling up a malfunction
see Display messages
Care
Car wash ........................................ 292
Carpets .......................................... 298
Display .......................................... .296
Exhaust pipe .................................. 296
Exterior lights ................................ 295
Gear or selector lever .................... 297
Interior .......................................... .296
Matte finish ................................... 294
Notes ............................................. 291
Paint .............................................. 293
Plastic trim ................................... .297
Power washer ................................ 293
Rear view camera .......................... 296
Roof lining ...................................... 298
Seat belt ........................................ 298
Seat cover ..................................... 297
Sensors ......................................... 295
Steering wheel ............................... 297
Trim pieces ................................... .297
Washing by hand ........................... 292
Wheels .......................................... .294
Windows ........................................ 294
Wiper blades .................................. 295
Wooden trim .................................. 297
Cargo compartment enlargement ... 265
Cargo tie down rings ......................... 266
CD player/CD changer (on-board
computer) .......................................... 207
Center console
Lower section .................................. 35
Upper section .................................. 34
Central locking
Automatic locking (on-board com-puter) ............................................. 212
Locking/unlocking (SmartKey) ....... .74
Changing bulbs
Brake lamps .................................. .119
Cornering light function ................. 119
High-beam headlamps ................... 118
Low-beam headlamps .................... 118 Rear fog lamp ................................ 119
Turn signals (front) ......................... 119
Turn signals (rear) .......................... 119
Child
Restraint system .............................. 57
Child seat
Forward-facing restraint system ...... 61
LATCH-type (ISOFIX) child seat
anchors ............................................ 58
On the front-passenger seat ............ 60
Rearward-facing restraint system .... 61
Top Tether ....................................... 59
Child-proof locks
Important safety notes .................... 61
Rear doors ....................................... 62
Children
Special seat belt retractor .............. .57
Cigarette lighter ................................ 270
Cleaning
Mirror turn signal .......................... .295
Climate control
Air-conditioning system ................. 125
Automatic climate control (dual-
zone) .............................................. 127
Controlling automatically .............. .131
Cooling with air dehumidification .. 129
Defrosting the windows ................. 134
Defrosting the windshield .............. 133
General notes ................................ 124
Indicator lamp ................................ 131
Information about using auto-
matic climate control ..................... 128
Maximum cooling .......................... 133
Notes on using the air-condition-
ing system ..................................... 126
Overview of systems ..................... .124
Problem with the rear window
defroster ........................................ 135
Problems with cooling with air
dehumidification ............................ 131
Refrigerant ..................................... 358
Refrigerant filling capacity ............. 359
Setting the air distribution ............. 132
Setting the air vents ..................... .136
Setting the airflow ......................... 132
Setting the temperature ................ 131
Switching air-recirculation mode
on/off ............................................ 135 6
Index

Switching on/of
f........................... 129
Switching residual heat on/off ...... 135
Switching the rear window
defroster on/of f............................ 134
Switching the ZONE function on/
off .................................................. 132
Cockpit
Overview .......................................... 30
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 210
Display message ............................ 224
Operation/note s.............................. 64
COMAND display
Cleaning ......................................... 296
Combination switch .......................... 112
Compass
Calibrating ..................................... 283
Calling up ....................................... 283
Magnetic field zone maps .............. 284
Setting ........................................... 283
Consumption statistics (on-board
computer) .......................................... 204
Convenience closing feature .............. 88
Convenience opening feature ............ 87
Coolant (engine)
Checking the level ......................... 289
Display message ............................ 233
Filling capacity ............................... 358
Important safety notes .................. 357
Temperature (on-board computer, AMG vehicles) ................................ 214
Temperature gaug e........................ 200
Warning lamp ................................. 256
Cooling
see Climate control
Copyright ............................................. 27
Cornering light function
Changing bulb s.............................. 119
Display message ............................ 229
Function/note s............................. 113
Crash-responsive emergency light-
ing ....................................................... 116
Cruise control
Activation conditions ..................... 170
Cruise control lever ....................... 170
Deactivating ................................... 171 Display message ............................ 238
Driving system ............................... 169
Function/note s............................. 169
Important safety notes .................. 169
Setting a speed .............................. 170
Storing and maintaining current
speed ............................................. 170
Cup holder
Center console .............................. 268
Important safety notes .................. 268
Rear compartment ......................... 269
Customer Assistance Center
(CAC) ..................................................... 25
Customer Relations Department ....... 25 D
Data see Technical data
Daytime running lamps
Display message ............................ 232
Function/note s............................. 110
Switching on/off (on-board com-
puter) ............................................. 212
Declarations of conformity ................. 24
Diagnostics connection ...................... 24
Digital speedometer ......................... 205
DIRECT SELECT lever
Automatic transmission ................. 148
Display messages
ASSYST PLU S................................ 290
Calling up (on-board computer) ..... 217
Driving system s............................. 235
Engine ............................................ 233
General notes ................................ 217
Hiding (on-board computer) ........... 217
Lights ............................................. 229
Safety systems .............................. 218
SmartKey ....................................... 246
Tires ............................................... 239
Vehicle ........................................... 242
Distance recorder ............................. 203
Distance warning (warning lamp) .... 258
Distance warning function
Function/note s................................ 64
Warning lamp ................................. 258
DISTRONIC PLUS
Activation conditions ..................... 173 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 24). 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
The air-conditioning system/dual-zone auto-
matic climate control regulates the tempera- ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
The air-conditioning system/dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum opera-
tion is only achieved with the side windows
and panorama roof with power tilt/sliding
panel closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 135).
Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear (Y
page 119). Otherwise the vehicle will
not be ventilated correctly.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 87). 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 always observe 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.
i It is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry the automatic climate control. The vehicle
is then ventilated for 30 minutes. 124
Overview of climate control systemsClimate control

Air-conditioning system control panel
USA only
:
Sets the temperature (Y page 131)
; Defrosts the windshield (Y page 133)
= Sets the air distribution (Y page 132)
? Activates/deactivates air-recirculation mode (Y page 135)
A Sets the airflow (Y page 132)
B Switches cooling with air dehumidification on/off (Y page 129)
C Switches the rear window defroster on/off (Y page 134)Canada only
:
Sets the temperature (Y page 131)
; Defrosts the windshield (Y page 133)
= Sets the air distribution (Y page 132) Overview of climate control systems
125Climate control

?
Activates/deactivates air-recirculation mode (Y page 135)
A Sets the airflow (Y page 132)
B Switches cooling with air dehumidification on/off (Y page 129)
C Switches the rear window defroster on/off (Y page 134)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on the air-conditioning system by
turning control knob Aclockwise to the
desired position (except position 0).
R Set the temperature to 72 ‡ (22 †).
R Recommendation for avoiding misted
windows at low exterior temperatures
or in rain: switch on the ¿cooling with
dehumidification function (Y page 129).
Set air distribution to ¯and if possible
switch off PandO (Ypage 132).
Deactivate air-recirculation mode e
(Y page 135).
Set airflow control Ato a setting between
3 and 6(Y page 132).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control Ato a setting between 3
and 6(Y page 132).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol Ato a setting between 1and 3
(Y page 132).
R Recommendation for air distribution in
winter: select the Oand¯ settings
(Y page 132).
Recommendation for air distribution in
summer: select the PorP and
¯ settings (Y page 132).
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 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/
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 146). 126
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
USA only
:
Sets the temperature, left (Y page 131)
; Sets climate control to automatic (Y page 131)
= Defrosts the windshield (Y page 133)
? Increases the airflow (Y page 132)
A Sets the air distribution (Y page 132)
B Display
C Activates/deactivates air-recirculation mode (Y page 135)
D Switches climate control on/off (Y page 129)
E Sets the temperature, right (Y page 131)
F Activates/deactivates maximum cooling (Y page 133)
G Switches cooling with air dehumidification on/off (Y page 129)
H Reduces the airflow (Y page 132)
I Switches the rear window defroster on/off (Y page 134)
J Switches the ZONE function on/off (Y page 132) Overview of climate control systems
127Climate control

Canada only
:
Sets the temperature, left (Y page 131)
; Sets climate control to automatic (Y page 131)
= Defrosts the windshield (Y page 133)
? Increases the airflow (Y page 132)
A Sets the air distribution (Y page 132)
B Display
C Activates/deactivates air-recirculation mode (Y page 135)
D Switches climate control on/off (Y page 129)
E Sets the temperature, right (Y page 131)
F Switches the residual heat function on/off (Y page 135)
G Switches cooling with air dehumidification on/off (Y page 129)
H Reduces the airflow (Y page 132)
I Switches the rear window defroster on/off (Y page 134)
J Switches the ZONE function on/off (Y page 132)Optimum use of dual-zone climate
control
Climate control system The following contains instructions and rec-
ommendations to enable you to get the most
out of your dual-zone automatic climate con- trol.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps in 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 in the ábutton goes out. 128
Overview of climate control systemsClimate control