cooling MERCEDES-BENZ CLA 2014 Owners Manual

1, 2, 3 ...
12Vsocket
see Sockets
4ETS
see ETS/4ETS (Electronic
TractionSystem)
4MATIC (permanent all-wheel
drive)
Displaymessage............................238
4MATIC (permanent four-wheel
drive)..................................................174
A
ABS (Anti-lock Braking System)
Display message............................213
Function/notes ................................ 61
Important safety notes....................61
Warning lamp ................................. 242
Activating/deactivating cooling
with air dehumidification.................125
Active Parking Assist
Canceling .......................................182
Detecting parking spaces..............179
Display message............................231
Exitingaparking space..................181
Function/notes.............................178
Important safety notes..................178
Parking..........................................180
ADAPTIVE BRAKE................................. 69
Adaptive Brake Assist
Function/notes ................................ 63
Adaptive Highbeam Assist
Display message............................226
Function/notes.............................108
Switching on/off...........................109
Switching on/off (on-board
computer)......................................207
Additional speedometer...................206
Additives (engine oil)........................348
Airbags
Deployment.....................................39
Display message............................222
Front air bag (driver, front
passenger).......................................43
Important safety notes....................41
Knee bag .......................................... 43
PASSENGER AIR BAG OFF
indicator lamp..................................45
Safety guidelines.............................40
Side impact airbag..........................44
Windowcurtain air bag....................45
Air-conditioning system
see Climate control
Airvents
Important safetynotes..................132
Rear...............................................133
Setting...........................................132
Setting the center air vents...........132
Setting the side air vents...............132
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer)......................................207
AMG
Menu (on-board computer)............209
Performance Seat............................96
Anti-lockbraking system
see ABS (Anti-lock Braking System)
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Ashtray...............................................262
Assistance display (on-board
computer)..........................................203
Assistance menu (on-board
computer)..........................................202
ASSYST PLUS
Displaying a service message........284
Hiding a service message..............284
Notes.............................................284
Resetting the service interval
display...........................................284
Service message ............................ 284
Special service requirements ......... 285
ATA (Anti-Theft Alarm system)
Activating/deactivating...................70
Function ...........................................70
Switching off the alarm....................70
ATTENTIONASSIST
Activating/deactivating.................204
Display message............................229
Function/notes.............................186
Audio menu (on-board computer)....200
4Index

C
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Carpets..........................................291
Car wash ........................................ 285
Display...........................................290
Exhaustpipe..................................289
Exterior lights................................288
Gearorselectorlever....................290
Interior...........................................290
Matte finish...................................287
Notes.............................................285
Paint..............................................287
Plastic trim....................................290
Power washer................................286
Rearview camera..........................289
Roof lining ...................................... 291
Seat belt........................................291
Seat cover.....................................291
Sensors.........................................289
Steering wheel...............................290
Trim pieces....................................290
Washing by hand...........................286
Wheels...........................................287
Windows........................................288
Wiper blades..................................288
Wooden trim..................................290
Cargo compartment enlargement...257
Cargo tie down rings.........................258
Car wash (care).................................285
Center console
Lowersection..................................33
Uppersection..................................32
Central locking
Automatic locking (on-board
computer)......................................208
Locking/unlocking (SmartKey)........72
Changing bulbs
Brake lamps...................................114
Cornering light function.................113
High-beam headlamps...................113
Low-beam headlamps....................112
Rearfog lamp................................114
Reversing lamps............................114
Turn signals (front) ......................... 113
Turn signals (rear)..........................114
Child-proof locks
Important safety notes....................60
Reardoors.......................................60
Children
In the vehicle...................................54
Restraint systems............................54
Specialseat belt retractor...............57
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 58
On the front-passenger seat............57
Top Tether.......................................59
Cigarette lighter................................262
Climate control
Automatic climate control.............121
Automatic climate control (dual-
zone) .............................................. 123
Controlling automatically...............127
Cooling with airdehumidification..125
Defrosting the windows.................129
Defrosting the windshield..............129
Important safety notes..................120
Indicator lamp ................................ 127
Maximum cooling..........................129
Notes on using automatic climate
control...........................................124
Notes on using dual-zone
automatic climate control..............122
Overview of systems......................120
Problems with cooling with air
dehumidification............................127
Problem with the rear window
defroster........................................131
Refrigerant.....................................350
Refrigerant filling capacity.............351
Setting the airdistribution.............128
Setting the airflow.........................128
Setting the airvents......................132
Setting the temperature................127
Switching air-recirculation mode
on/off............................................131
Switching on/off...........................125
Switching residual heaton/off......131
6Index

Switching the rearwindow
defroster on/off............................130
Switching the ZONE function on/
off..................................................128
Cockpit
Overview..........................................28
see Instrument cluster
COLLISIONPREVENTION ASSIST
Activating/deactivating the
distance warning function .............. 204
Displaymessage............................213
Operation/notes..............................62
COLLISIONPREVENTION ASSIST
PLUS
Activating/deactivating.................204
Operation/notes..............................64
COMAND
see separate operating instructions
Combination switch..........................106
Compass
Calibrating.....................................276
Calling up ....................................... 276
Setting...........................................276
Consumption statistics (on-board
computer)..........................................197
Convenience closing feature..............84
Convenience opening feature............84
Coolant(engine)
Checkingthe level.........................283
Display message............................227
Filling capacity...............................350
Important safety notes..................349
Temperature (on-board computer).209
Temperature gauge ........................ 194
Warning lamp ................................. 248
Cooling
see Climate control
Copyright.............................................26
Cornering light function
Changing bulbs..............................113
Display message............................223
Function/notes.............................107
Crash-responsive emergency
lighting...............................................111
Cruise control
Activationconditions.....................163
Cruise control lever.......................162
Deactivating ................................... 164
Display message............................233
Driving system...............................162
Function/notes.............................162
Important safety notes..................162
Settingaspeed .............................. 163
Storing and maintaining current
speed ............................................. 163
Cup holder
Centerconsole..............................260
Important safety notes..................260
Rearcompartment.........................261
Customer Assistance Center (CAC)...25
Customer Relations Department.......25
D
Dashboard
see Instrument cluster
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Daytime running lamps
Display message............................226
Switching on/off (on-board
computer)......................................206
Switching on/off (switch)..............105
Dealerships
see Qualified specialist workshop
Declarations of conformity................. 24
Delayedswitch-off
Exteriorlighting (on-board
computer)......................................207
Interior lighting..............................208
Diagnostics connection......................25
Digital speedometer.........................198
DIRECT SELECTlever
see Automatic transmission
Display(cleaning instructions)........290
Display messages
ASSYST PLUS................................284
Calling up (on-board computer).....212
Driving systems.............................229
Engine ............................................ 227
General notes................................212
Hiding (on-board computer)...........212
Lights .............................................223
Index7

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment 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.
iRead the information on qualified
specialist workshops: (Ypage 25).
Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could
otherwise fog up.
To preventthe windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only
briefly
Rswitch on the cooling with air
dehumidification function
Rswitch on the defrost windshield function
briefly, if required
The automatic climate control regulates the
temperature and the humidity of the vehicle
interior and filters out undesirable
substances from the air.
Automatic climate control/dual-zone
automatic climate control is only operational
when the engine is running. Optimum
operation is only achieved with the side
windows and panorama roof with power tilt/
sliding panel closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Ypage 131).
iVentilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature (Ypage 84).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
iThe integrated filter filters out most
particles of dust and soot and completely
filters out pollen. With dual-zone automatic
climate control, gaseous pollutants and
odors will also be reduced.Aclogged filter
reduces the amountofair 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.
iIt is possible that the dehumidification
function of the climate control system may
be activated automatically an hour after the
SmartKey has been removed. The vehicle
is then ventilated for 30 minutes.
120Overview of climate control systems
Climate control

Control panel for climate control
USA only
Sets the temperature (Ypage 127)
Defrosts the windshield (Ypage 129)
"Sets the air distribution (Ypage 128)
!Activates/deactivates air-recirculation mode (Ypage 131)
Sets the airflow (Ypage 128)
Switches cooling with air dehumidification on/off(Ypage 125)
Switches the rear window defroster on/off (Ypage 130)
Canada only
Sets the temperature (Ypage 127)
Defrosts the windshield (Ypage 129)
"Sets the air distribution (Ypage 128)
Overview of climate control systems121
Climate control

!Activates/deactivates air-recirculation mode (Ypage 131)
Sets the airflow (Ypage 128)
Switches cooling with airdehumidification on/off (Ypage 125)
Switches the rear window defroster on/off (Ypage 130)
Notes on using climate control
Automatic climate control
The following contains notes and
recommendations on optimum use of the
automatic climate control.
RSwitch on the air-conditioning system by
turning control knobclockwise to the
desired position (except position0).
RSet the temperature to 72 ‡ (22 †).
RRecommendation for preventing
fogged up windows with low outside
temperatures or rain:switchon for
the air distribution and switchand
off if possible (Ypage 128).
In air-recirculation mode, switchoff
(Ypage 131).
Set airflow controlto a setting between
3and6(Ypage 128).
RRecommendation for rapid cooling or
heating of the vehicle interior:briefly set
airflow controlto a setting between3
and6(Ypage 128).
RRecommendation for a constant
vehicle interior temperature:set airflow
controlto a setting between1and3
(Ypage 128).
RRecommendation for air distribution in
the winter:setand
(Ypage 128).
Recommendation for air distribution in
the summer:setorand
(Ypage 128).
ROnly use the "Windshield defrosting"
function briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
RVehicles with COMAND:if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the currentsettings of the various
climate control functions.
ECO start/stop function
During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Ypage 140).
122Overview of climate control systems
Climate control

Control panel for dual-zone automatic climate control
USA only
Sets the temperature, left (Ypage 127)
Sets climate control to automatic (Ypage 127)
"Defrosts the windshield (Ypage 129)
!Increases the airflow (Ypage 128)
Sets the air distribution (Ypage 128)
Display
Activates/deactivates air-recirculation mode (Ypage 131)
Switches climate control on/off (Ypage 125)
Sets the temperature, right(Ypage 127)
Activates/deactivates maximum cooling (Ypage 129)
Switches cooling with air dehumidification on/off (Ypage 125)
Reduces the airflow (Ypage 128)
Switches the rear window defroster on/off (Ypage 130)
Switches the ZONE function on/off (Ypage 128)
Overview of climate control systems123
Climate control

Canada only
Sets the temperature, left (Ypage 127)
Sets climate control to automatic (Ypage 127)
"Defrosts the windshield (Ypage 129)
!Increases the airflow (Ypage 128)
Sets the air distribution (Ypage 128)
Display
Activates/deactivates air-recirculationmode (Ypage 131)
Switches climate control on/off (Ypage 125)
Sets the temperature, right (Ypage 127)
Switches the residual heat function on/off(Ypage 131)
Switches cooling with air dehumidification on/off (Ypage 125)
Reduces the airflow (Ypage 128)
Switches the rear window defroster on/off (Ypage 130)
Switches the ZONE function on/off (Ypage 128)
Notes on using dual-zone automatic
climate control
Automatic climate control
The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
RActivate climate controlusing theand
buttons. The indicator lamps in the
andbuttons light up.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting"
function briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
RUse the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well.The
indicator lamp in thebutton goes out.
124Overview of climate control systems
Climate control

ROnly available on vehicles for Canada:
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.
RVehicles with COMAND:if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the currentsettings of the various
climate control functions.
ECO start/stop function
During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Ypage 140).
Operating the climate control
systems
Switching climate control on/off
Points to observe before use
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
Activating/deactivating
Automatic climate control
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XTo switch on:turn controlclockwise to
the desired position (except position0)
(Ypage 121).
XTo switch off:turn controlcounter-
clockwise to position0(Ypage 121).
Dual-zone automatic climate control
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress thebutton.
The indicator lamp in thebutton goes
out. The previously selected settings are
restored.
XTo deactivate:press thebutton.
The indicator lamp in thebutton lights
up.
iDual-zone automatic climate control:
switch on climate control primarily using
thebutton.
Activating/deactivating cooling with
air dehumidification
Points to observe before use
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
Operating the climate control systems125
Climate control

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.
Activating/deactivating
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up.
XTo deactivate:press thebutton.
The indicator lamp in thebutton goes
out. The "Cooling with air dehumidification"
function has a delayed switch-offfeature.
126Operating the climate control systems
Climate control