cooling MERCEDES-BENZ CLA 2013 Owners Manual

1, 2, 3 ...
12 V socket see Socket
A
ABS (Anti-lock Braking System) Display message ............................ 227
Function/notes ................................ 64
Important safety notes ....................64
Warning lamp ................................. 256
Activating/deactivating air-recir-
culation mode .................................... 134
Activating/deactivating cooling
with air dehumidification ................. 128
Active light function ......................... 110
Active Park Assist Display message ............................ 245
Active Parking Assist
Cancelling ...................................... 190
Detecting parking spaces ..............187
Exiting a parking space ..................189
Function/notes ............................. 186
Important safety notes ..................186
Parking .......................................... 188
Towing a trailer .............................. 191
ADAPTIVE BRAKE ................................. 70
Adaptive Brake Assist Display message ............................ 234
Function/notes ................................ 66
Adaptive brake lamps ......................... 68
Adaptive Highbeam Assist Display message ............................ 240
Function/notes ............................. 111
Switching on/off ........................... 112
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 221
Additional speedometer ................... 220
Additives (engine oil) ........................ 341
Adjusting the headlamp range ......... 108
Airbags Front airbag (driver, front
passenger) ....................................... 44
Important safety guidelines .............42
Kneebag ........................................... 44
Sidebag ............................................ 44
Triggering ......................................... 41
Windowbag ...................................... 45
Air-conditioning system
see Climate control
Air filter (white display message) .... 242
Air pressure see Tyre pressure
Air vents
Important safety notes ..................141
Rear ............................................... 142
Setting ........................................... 141
Setting the centre air vents ...........141
Setting the side air vents ...............142
Alarm system
see ATA (Anti-Theft Alarm system)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 222
Anti-glare film .................................... 280
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ....................................... 167
Ashtray ............................................... 276
Assistance display (on-board com-
puter) .................................................. 217
Assistance menu (on-board com-
puter) .................................................. 217
ASSYST PLUS Displaying a service message ........287
Hiding a service message ..............287
Notes ............................................. 286
Resetting the service interval dis-
play ................................................ 287
Service message ............................ 286
Special service requirements ......... 287
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................71
Function ........................................... 71
Interior motion sensor .....................72
Switching off the alarm ....................71
Tow-away protection ........................ 71
ATTENTION ASSIST
Activating/deactivating .................218
Display message ............................ 242
Function/notes ............................. 1954Index

Child seatAutomatic recognition .....................53
ISOFIX .............................................. 54
On the front-passenger seat ............52
Problem (malfunction) .....................62
Recommendations ...........................59
Suitable positions ............................ 57
Top Tether ....................................... 55
Cigarette lighter ................................ 276
Cleaning Trailer tow hitch ............................. 292
Climate control
Auxiliary heating/ventilation .......... 136
Controlling automatically ...............130
Convenience opening/closing
(air-recirculation mode) .................134
Cooling with air dehumidification ..128
Demisting the windows .................. 132
Demisting the windscreen .............132
Important safety notes ..................124
Indicator lamp ................................ 130
Notes on using THERMATIC auto-
matic climate control .....................125
Notes on using THERMOTRONIC
automatic climate control ..............127
Overview of systems ......................124
Problems with cooling with air
dehumidification ............................ 130
Problem with the rear window
heating .......................................... 134
Setting the air distribution .............131
Setting the airflow .........................131
Setting the air vents ......................141
Setting the temperature ................130
Switching air-recirculation mode
on/off ............................................ 134
Switching on/off ........................... 128
Switching residual heat on/off ......135
Switching the rear window heat-
ing on/off ...................................... 133
Switching the ZONE function on/
off .................................................. 131
THERMATIC automatic climate
control ........................................... 125
THERMOTRONIC (2-zone) auto-
matic climate control .....................127Cockpit
Overview .......................................... 28
see Instrument cluster
COLLISION PREVENTION ASSIST
Activating/deactivating the dis-
tance warning function ..................218
Display message ............................ 227
Operation/notes .............................. 65
COLLISION PREVENTION ASSIST
PLUS Activating/deactivating .................218
Display message ............................ 233
Operation/notes .............................. 67
COMAND Online
see separate operating instructions
Combination switch .......................... 109
Consumption statistics (on-board
computer) .......................................... 211
Convenience closing feature .............. 88
Convenience opening/closing (air-
recirculation mode) ........................... 134
Convenience opening feature ............ 88
Coolant (engine) Checking the level .........................285
Display message ............................ 240
Important safety notes ..................341
Temperature gauge ........................ 208
Warning lamp ................................. 262
Cooling
see Climate control
Copyright ............................................. 25
Cornering lamps Changing bulbs .............................. 117
Cornering light function
Display message ............................ 236
Function/notes ............................. 111
Crash-responsive emergency light-
ing ....................................................... 114
Cruise control Activation conditions .....................169
Cruise control lever .......................169
Deactivating ................................... 170
Display message ............................ 247
Driving system ............................... 168
Important safety notes ..................168
LIM indicator lamp .........................169
Selecting ........................................ 169Index7

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
Important safety 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 defrost windscreen function
briefly, if required
THERMATIC automatic climate control/
THERMOTRONIC automatic climate control
regulates the temperature and the humidity
of the vehicle interior and filters out undesir-
able substances from the air.
THERMATIC automatic climate control/
THERMOTRONIC automatic climate control is
only operational when the engine is running.
Optimum operation is only achieved with the
side windows and panorama sliding sunroof
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, e.g. using the con-
venience opening feature (Y page 88). 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. With THERMOTRONIC auto-
matic climate control, gaseous pollutants
and odours will also be reduced. 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
Service Booklet. As it depends on environ-
mental conditions, e.g. heavy air pollution,
the interval may be shorter than stated in
the Service Booklet.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the key has been removed in order to
dry the air-conditioning system. The vehicle
is then ventilated for 30 minutes.124Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control:To set the temperature (Y page 130);To demist the windscreen ( Y page 132)=To set the air distribution ( Y page 131)?To activate/deactivate air-recirculation mode ( Y page 134)ATo set the airflow ( Y page 131)BTo activate/deactivate cooling with air dehumidification ( Y page 128)CTo switch the rear window heating on/off ( Y page 133)Notes on using THERMATIC automatic
climate control
Automatic climate control
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate control.
R Switch on the air-conditioning system by
turning control knob A clockwise to the
desired position (except position 0).
R Set the temperature to 22 †.
R Recommendation to avoid misting of
the windows in the event of low outside
temperatures or rain: switch on the air
distribution ¯ and if possible switch off
P and O (Y page 131).
Deactivate air-recirculation mode
e (Y page 134).
Set airflow control A to a setting between
3 and 6(Y page 131).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control A to a setting between 3
and 6(Y page 131).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol A to a setting between 1 and
3 (Y page 131).
R Recommendation for air distribution in
winter: select the O and ¯ settings
( Y page 131).
Recommendation for air distribution in
summer: select the P or P and
¯ settings ( Y page 131).
R Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.Overview of climate control systems125Climate control

Control panel for THERMOTRONIC automatic climate control (2-zone):To set the temperature, left (Y page 130);To set climate control to automatic mode ( Y page 130)=To demist the windscreen ( Y page 132)?To increase the airflow ( Y page 131)ATo set the air distribution ( Y page 131)BDisplayCTo activate/deactivate air-recirculation mode ( Y page 134)DTo switch climate control on/off ( Y page 128)ETo set the temperature, right ( Y page 130)FTo activate/deactivate the residual heat function ( Y page 135)GTo activate/deactivate cooling with air dehumidification ( Y page 128)HTo reduce the airflow ( Y page 131)ITo switch the rear window heating on/off ( Y page 133)JTo switch the ZONE function on/off ( Y page 131)Notes on using THERMOTRONIC auto-
matic 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 à and
¿ buttons. The indicator lamps in the
à and ¿ 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-Overview of climate control systems127Climate control

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
the front-passenger side as well. The indi-
cator lamp in 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 resid-
ual heat function can only be activated or
deactivated with the ignition switched off.
R Vehicles with COMAND Online: 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 Online 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 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 149).
Operating the climate control system
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 mist up.
Therefore, only switch off climate control
briefly.
THERMATIC automatic climate controlXTurn the key to position 2 in the ignition
lock ( Y page 145).XTo switch on: turn control A clockwise to
the desired position (except position 0)
( Y page 125).XTo switch off: turn control A anti-clock-
wise to position 0 (Y page 125).
THERMOTRONIC automatic climate
control
XTurn the key to position 2 in the ignition
lock ( Y page 145).X To switch on: press the à button.
The indicator lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^ button.
The indicator lamp in the ^ button goes
out. The previous settings are reactivated.XTo deactivate: press the ^ button.
The indicator lamp in the ^ button lights
up.
i THERMOTRONIC automatic climate con-
trol: switch on climate control primarily
using the à button.
Activating/deactivating the cooling
with air dehumidification function
Points to observe before use
If you deactivate the "Cooling with air dehu-
midification function", the air inside the vehi-
cle will not be cooled in warmer weather. The
air inside the vehicle will not be dehumidified
either. The windows can mist up more
quickly. Therefore, only switch off the "Cool-
ing with air dehumidification function" 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
128Operating the climate control systemClimate control

dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This
is normal and not a sign that there is a mal-
function.
Switching on/offXTo activate: press the ¿ button.
The indicator lamp in the ¿ button lights
up.XTo deactivate: press the ¿ button.
The indicator lamp in the ¿ button goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.Operating the climate control system129Climate control

Problems with the "Cooling with air dehumidification" functionProblemPossible causes/consequences and M SolutionsThe indicator lamp in
the ¿ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation function" cannot
be switched on.Cooling with air dehumidification has been deactivated due to a
malfunction.XVisit a qualified specialist workshop.Setting climate control to automatic
mode
Points to observe before use
Only THERMOTRONIC automatic climate con-
trol features the "Control climate control
automatically" function.
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 deactivate the "Cooling with air-dehu-
midification" function briefly.
Setting climate control to automatic
mode
XTurn the key to position 2 in the ignition
lock ( Y page 145).XSet the desired temperature.XTo activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.XTo switch to manual mode: press the
É or Ë button.
or
XPress the K or I button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated.
Setting the temperature
THERMATIC automatic climate control
You can set the temperature for the entire
vehicle.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: turn control :
clockwise or anti-clockwise ( Y page 125).
Only change the temperature setting in
small increments. Start at 22 †.
THERMOTRONIC automatic climate
control
Different temperatures can be set for the
driver's and front-passenger sides.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo increase/reduce: turn controls : or
E clockwise or anti-clockwise
( Y page 127). Only change the temperature
setting in small increments. Start at 22 †.130Operating the climate control systemClimate control

The temperature setting for the driver's
side is adopted for the front-passenger
side.
Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the side windows.
i You should only select the "Windscreen
demisting" function until the windscreen is
clear again.
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo activate: press the ¬ button.
The indicator lamp in the ¬ button 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
i The "Windscreen demisting" function
automatically sets the blower output to the
optimum demisting effect. As a result, the
airflow may increase or decrease automat-
ically after the button is pressed.
i You can adjust the blower output man-
ually while the "Windscreen demisting"
function is in operation:
R THERMATIC automatic climate control:
turn airflow control A clockwise or anti-
clockwise ( Y page 125).
R THERMOTRONIC automatic climate con-
trol: press the ó or ô button.
XTo deactivate: press the ¬ button.
The indicator lamp in the ¬ button goes
out. The previous settings are reactivated.
Air-recirculation mode remains deactiva-
ted.
or
XTHERMOTRONIC automatic climate con-
trol: press the à button.
The indicator lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
XTHERMATIC automatic climate control:
turn temperature control : clockwise or
anti-clockwise ( Y page 125).
THERMOTRONIC automatic climate con-
trol: turn temperature control : or E
clockwise or anti-clockwise ( Y page 127).
Demisting the windows
Windows misted up on the inside
THERMATIC automatic climate control
XActivate the ¿ "Cooling with air dehu-
midification" function.XIf the windows continue to mist up, activate
the ¬ "Windscreen demisting" function.
i
You should only select this setting until
the windscreen is clear again.
THERMOTRONIC automatic climate con-
trol
XActivate the ¿ "Cooling with air dehu-
midification" function.XActivate automatic mode Ã.XIf the windows continue to mist up, activate
the ¬ "Windscreen demisting" function.
i
You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside
XActivate the windscreen wipers.XSet the air distribution to P or O .
i
You should only select this setting until
the windscreen is clear again.
132Operating the climate control systemClimate control

Problems with the rear window heatingProblemPossible causes/consequences and M SolutionsThe rear window heat-
ing has switched off
prematurely or cannot
be activated.The battery has not been sufficiently charged.XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat-
ing can be activated again.Activating/deactivating air-recircula-
tion mode
Points to observe before use
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can mist up more quickly, in partic-
ular at low temperatures. Only use air-recir-
culation mode briefly to prevent the windows
misting up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating
XTurn the key to position 2 in the ignition
lock ( Y page 145).XTo activate: press the e button.
The indicator lamp in the e button lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
e button is not lit.
Outside air is added after about
30 minutes.
XTo deactivate: press the e button.
The indicator lamp in the e button goes
out.i Air-recirculation mode is deactivated
automatically:
R after approximately five minutes at out-
side temperatures below about 5 †
R after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
R after approximately 30 minutes at out-
side temperatures above approximately
5 † if the "Cooling with air dehumidifi-
cation" function is activated
Convenience opening/closing using
the air-recirculation button
GWARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts
of the body are in the closing area.
GWARNING
During convenience opening parts of the body
could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, press the W switch
immediately to open/close the side window
134Operating the climate control systemClimate control