2013-2018 Mercedes CLA 4 Door Climate control User Manual
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Climate control for Your Mercedes CLA 4 Door First Generation (2013-2018)

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. Otherwise, the windows could
mist up.
To prevent the windows from misting up:
R
switch off climate control only briefly
R
activate air-recirculation mode only briefly
R
switch on "Cooling with air dehumidification"
R
activate the "Windscreen demisting" function
briefly, if required
The air-conditioning system or THERMOTRONIC
automatic climate control regulates the temper-
ature and the humidity of the vehicle interior and
filters undesirable substances from the air.
The air-conditioning system or THERMOTRONIC
automatic climate control can only be operated
when the engine is running. Optimum operation
is only achieved with the side windows and pan-
orama sliding sunroof closed.
The residual heat function can only be activated
or deactivated with the ignition switched off
(Y page 126).
Always keep the ventilation flaps behind the
side panelling clear (Y page 113). Otherwise the
vehicle will not be ventilated correctly.
i
Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (Y page 90). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i
The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. With THERMOTRONIC automatic
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 Book-
let. As this depends on environmental condi-
tions, e.g. heavy air pollution, the interval may
be shorter than stated in the Service Booklet.
i
Vehicles with auxiliary heating: Under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the ignition key has been
removed in order to dry the automatic climate
control. The blue LED on the rocker switch in
the centre console lights up when the active
function to dry the automatic climate control
is on. The vehicle is then ventilated for
30 minutes.
Vehicles without auxiliary heating: Under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the ignition key has been
removed in order to dry the automatic climate
control. The vehicle is then ventilated for
30 minutes.
Overview of climate control systems
117
Climate control
Control panel for air-conditioning system
:
To set the temperature (Y page 122)
;
To demist the windscreen (Y page 123)
=
To set the air distribution (Y page 122)
?
To activate/deactivate air-recirculation mode (Y page 124)
A
To set the airflow (Y page 123)
B
To activate/deactivate cooling with air dehumidification (Y page 121)
C
To switch the rear window heating on/off (Y page 124)
Notes on using the air-conditioning
system
Air-conditioning system
Below, you can find a number of tips and rec-
ommendations for optimum use of the air-con-
ditioning system.
R
Switch on the air-conditioning system by turn-
ing control knob A clockwise to the desired
position (except position 0).
R
Set the temperature to 22 †.
R
Recommendation for avoiding misted
windows at low exterior temperatures or
in rain: switch on the ¿ cooling with dehu-
midification function (Y page 121).
Set air distribution to ¯ and if possible
switch off P and O (Y page 122).
Deactivate air-recirculation mode e
(Y page 124).
Set airflow control A to a setting between 3
and 6 (Y page 123).
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 123).
R
Recommendation for a constant vehicle
interior temperature: set airflow control A
to a setting between 1 and 3 (Y page 123).
R
Recommendation for air distribution in
winter: select the O and ¯ settings
(Y page 122).
Recommendation for air distribution in
summer: select the P or P and ¯
settings (Y page 122).
R
Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R
Use air-recirculation mode only briefly, e.g. if
there are unpleasant outside odours or when
in a tunnel. The windows could otherwise mist
up as no fresh air is drawn into the vehicle in
air-recirculation mode.
R
If you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
118
Overview of climate control systems
Climate control
the bottom of the screen in the multimedia
system display (see separate operating
instructions). You will see the current settings
of the various climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles)
You can choose between various drive programs
with the DYNAMIC SELECT button
(Y page 141).
If you have selected drive program E:
R
when heating, the electrical heater booster is
deactivated and in the warming-up phase
heat output is reduced
R
the rear window heating running time is
reduced
Depending on the configuration, the climate set-
tings can also be influenced in drive program I.
If you have selected drive program C or S, the
climate settings are not affected.
ECO start/stop function
During automatic engine switch-off, the climate
control operates only 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 (Y page 138).
Control panel for THERMOTRONIC automatic climate control (2-zone)
:
To set the temperature, left (Y page 122)
;
To set climate control to automatic mode (Y page 121)
=
To demist the windscreen (Y page 123)
?
To increase the airflow (Y page 123)
A
To set the air distribution (Y page 122)
B
Display
C
To activate/deactivate air-recirculation mode (Y page 124)
D
To switch the climate control on/off (Y page 120)
E
To set the temperature, right (Y page 122)
F
To switch the residual heat on/off (Y page 126)
G
To activate/deactivate cooling with air dehumidification (Y page 121)
H
To reduce the airflow (Y page 123)
Overview of climate control systems
119
Climate control
I
To switch the rear window heating on/off (Y page 124)
J
To switch the ZONE function on/off (Y page 123)
Information on using THERMOTRONIC
automatic climate control
Automatic climate control
The following contains instructions and recom-
mendations to enable you to get the most out of
your THERMOTRONIC automatic climate con-
trol.
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
Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R
Use air-recirculation mode only briefly, e.g. if
there are unpleasant outside odours or when
in a tunnel. The windows could otherwise mist
up as no fresh air is drawn into the vehicle in
air-recirculation mode.
R
Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well. The indicator
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 residual heat
function can be activated or deactivated only
with the ignition switched off.
R
If you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display (see separate operating
instructions). You will see the current settings
of the various climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles)
You can choose between various drive programs
with the DYNAMIC SELECT button
(Y page 141).
If you have selected drive program E:
R
when heating, the electrical heater booster is
deactivated and in the warming-up phase
heat output is reduced
R
the rear window heating running time is
reduced
Depending on the configuration, the climate set-
tings can also be influenced in drive program I.
If you have selected drive program C or S, the
climate settings are not affected.
ECO start/stop function
During automatic engine switch-off, the climate
control operates only 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 (Y page 138).
Operating the climate control system
Switching the climate control on/off
General notes
When climate control is switched off, the air
supply and air circulation are also switched off.
The windows could mist up. Therefore, switch
off climate control only briefly.
Air-conditioning system
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To switch on: turn control A clockwise to
the desired position (except position 0)
(Y page 118).
X
To switch off: turn control A anti-clockwise
to position 0 (Y page 118).
120
Operating the climate control system
Climate control
THERMOTRONIC automatic climate
control
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To activate: press the à button.
The indicator lamp in the à button lights
up. Airflow and air distribution are set to auto-
matic mode.
or
X
Press the ^ button.
The indicator lamp in the ^ button goes
out. The previous settings are reactivated.
X
To deactivate: press the ^ button.
The indicator lamp in the ^ button lights
up.
i
THERMOTRONIC automatic climate control:
switch on climate control primarily using the
à button.
Activating/deactivating cooling with
dehumidification
General notes
If you deactivate the "Cooling with air dehumid-
ification" function, the air inside the vehicle will
not be cooled during warm weather. The air
inside the vehicle will also not be dehumidified.
The windows can mist up more quickly. There-
fore, only deactivate the "Cooling with air dehu-
midification" function briefly.
The "Cooling with air dehumidification" function
is available only when the engine is running. 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. This is
normal and not a sign that there is a malfunc-
tion.
Activating/deactivating
X
Press the ¿ button.
The indicator lamp in the ¿ button lights
up or goes out.
The indicator lamp in the button indicates that
the respective function is activated. The cool-
ing with air dehumidification function has a
delayed switch-off feature.
Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and MM Solutions
The indicator lamp in the
¿ button flashes
three times or remains
off. The cooling with air
dehumidification func-
tion cannot be activated.
The cooling with air dehumidification function has been deactivated
due to a malfunction.
X
Consult a qualified specialist workshop.
Setting climate control to automatic
mode
General notes
Only THERMOTRONIC automatic climate con-
trol features the "Control climate control auto-
matically" function.
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Operating the climate control system
121
Climate control
Setting climate control to automatic
mode
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
Set the desired temperature.
X
To activate: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow are
activated.
X
To switch to manual mode: press the É
or Ë button.
or
X
Press the K or I button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow are
deactivated.
Setting the temperature
Air-conditioning system
You can set the temperature for the entire vehi-
cle. The set temperature is automatically main-
tained at a constant level.
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To increase or reduce: turn control : anti-
clockwise or clockwise (Y page 118). Change
the temperature setting only in small incre-
ments. Start at 22 †.
THERMOTRONIC automatic climate
control
Different temperatures can be set for the driv-
er's and front-passenger sides. The set temper-
ature is automatically maintained at a constant
level.
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To increase or decrease: turn control : or
E anti-clockwise or clockwise (Y page 119).
Change the temperature setting only in small
increments. Start at 22 †.
Setting the air distribution
Air-conditioning system
Air distribution settings
¯
Directs the airflow through the demister
vents
P
Directs the airflow through the centre
and side air vents
O
Directs the airflow through the footwell
air vents
i
You can also activate several of the air dis-
tribution settings simultaneously. In order to
do this, press several of the air distribution
buttons. The air is then routed through differ-
ent air vents.
i
Regardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed if
the adjusters are turned clockwise until they
engage.
Setting the air distribution
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
Press one or more of the P, O, ¯
buttons.
The corresponding indicator lamp comes on.
THERMOTRONIC automatic climate
control
Air distribution settings
¯
Directs the airflow through the demister
vents
P
Directs the airflow through the centre
and side air vents
O
Directs the airflow through the footwell
air vents
S
Directs the airflow through the centre
and side air vents as well as the footwell
air vents
b
Directs the airflow through the centre
and side air vents as well as the demister
vents
a
Directs the airflow through the footwell
and demister vents
_
Directs the airflow through the demister
vents, the centre and side air vents as
well as the footwell air vents
122
Operating the climate control system
Climate control
i
Regardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed if
the adjusters are turned clockwise until they
engage.
Setting the air distribution
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
Press the É or Ë button repeatedly
until the desired symbol appears in the dis-
play.
Setting the airflow
Air-conditioning system
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To increase or reduce: turn control A anti-
clockwise or clockwise (Y page 118).
THERMOTRONIC automatic climate
control
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To increase or reduce:press the K or
I button.
Switching the ZONE function on/off
This function is only available with
THERMOTRONIC automatic climate control.
X
To activate: press the á button.
The indicator lamp in the á button lights
up.
The temperature setting for the driver's side
is not adopted for the front-passenger side.
X
To deactivate: press the á button.
The indicator lamp in the á button goes
out.
The temperature setting for the driver's side
is adopted for the front-passenger side.
Demisting the windscreen
General notes
You can use this function to defrost the wind-
screen or to demist the inside of the windscreen
and the side windows.
i
You should only select the "Windscreen
demisting" function until the windscreen is
clear again.
Switching the "Windscreen demisting"
function on or off
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To 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 auto-
matically sets the blower output to the opti-
mum demisting effect. As a result, the airflow
may increase or decrease automatically after
the ¬ button is pressed.
i
You can adjust the blower output manually
while the "Windscreen demisting" function is
in operation:
R
Air-conditioning system: turn airflow con-
trol A anti-clockwise or clockwise
(Y page 118).
R
THERMOTRONIC automatic climate con-
trol: press the ó or ô button.
X
To deactivate: press the ¬ button.
The indicator lamp in the ¬ button goes
out. The previous settings are reactivated.
Air-recirculation mode remains deactivated.
or
X
THERMOTRONIC automatic climate control:
press the à button.
The indicator lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
Operating the climate control system
123
Climate control
or
X
Air-conditioning system: turn temperature
control : anti-clockwise or clockwise
(Y page 118).
THERMOTRONIC automatic climate control:
turn temperature control : or E anti-clock-
wise or clockwise (Y page 119).
Demisting the windows
Windows misted up on the inside
Air-conditioning system
X
Activate the ¿ "Cooling with air dehumid-
ification" function.
X
If 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
X
Activate the ¿ "Cooling with air dehumid-
ification" function.
X
Activate automatic mode Ã.
X
If 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
X
Activate the windscreen wipers.
X
Set the air distribution to P or O.
i
You should only select this setting until the
windscreen is clear again.
Rear window heating
General notes
The rear window heating has a high current
draw. You should therefore switch it off as soon
as the window is clear. The rear window heating
otherwise switches off automatically after sev-
eral minutes.
If the battery voltage is too low, the rear window
heating may switch off.
Activating/deactivating
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
Press the ¤ button.
The indicator lamp in the ¤ button lights
up or goes out.
Problems with the rear window heating
Problem
Possible causes/consequences and MM Solutions
The rear window heating
has switched off prema-
turely or cannot be
switched on.
The battery has not been sufficiently charged.
X
Switch 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 heating
can be switched on again.
Activating/deactivating air-recircula-
tion mode
General notes
You can deactivate the flow of fresh air tempo-
rarily if unpleasant odours are entering the vehi-
cle from outside. The air already inside the vehi-
cle will then be recirculated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, particularly at
low temperatures. Use air-recirculation mode
only briefly to prevent the windows from misting
up.
The operation of air-recirculation mode is the
same for all control panels.
124
Operating the climate control system
Climate control
Activating/deactivating
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
To activate: press the e button.
The indicator lamp in the e button lights
up.
Air-recirculation mode is activated automati-
cally:
R
at high outside temperatures
R
at high levels of pollution
When air-recirculation mode is activated auto-
matically, the indicator lamp in the e button
is not lit. Outside air is added after about
30 minutes.
X
To deactivate: press the e button.
The indicator lamp in the e button goes
out.
i Air-recirculation mode is deactivated auto-
matically:
R
after approximately five minutes at outside
temperatures below approximately 7 †
R
after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
R
after approximately 30 minutes at outside
temperatures above approximately 7 † if
the cooling with air dehumidification func-
tion is activated
Convenience opening or closing using
the air-recirculation button
G
WARNING
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.
G
WARNING
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, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the W switch.
X
Convenience closing feature: press and
hold the e button until the side windows
start to close automatically.
Vehicles with panorama sliding sunroof:
the sliding sunroof or panorama sliding sun-
roof closes simultaneously.
The indicator lamp in the e button lights
up. Air-recirculation mode is activated.
If parts of the body are in the closing area during
convenience closing, proceed as follows:
X
Press the W button to stop the side win-
dows.
The side windows stop.
X
To then open the side window, press the W
button again.
or
X
Press and hold the e button again for at
least two seconds.
The side windows move in the opposite direc-
tion.
X
Only vehicles with panorama sliding sun-
roof: press the 3 switch to stop the pan-
orama sliding sunroof.
The panorama sliding sunroof stops.
X
To then open the panorama sliding sunroof,
pull back on the 3 switch.
i Observe the notes on the automatic revers-
ing feature for:
R
the side windows (Y page 89)
R
the panorama sliding sunroof (Y page 93)
X
Convenience opening feature: press and
hold the e button until the side windows
start to open automatically.
Vehicles with panorama sliding sunroof:
the panorama sliding sunroof opens simulta-
neously.
The indicator lamp in the e button goes
out. Air-recirculation mode is deactivated.
i
If you open the side windows or the pano-
rama sliding sunroof manually after closing
Operating the climate control system
125
Climate control
Z
with the convenience closing feature, they
will remain in this position when opened using
the convenience opening feature.
Switching the residual heat on/off
General notes
The residual heat function is only available with
THERMOTRONIC automatic climate control.
It is possible to make use of the residual heat of
the engine to continue heating the vehicle for
approximately 30 minutes after the engine has
been switched off. The heating time depends on
the set interior temperature.
i
The blower will run at a low speed regardless
of the airflow setting.
i
If you switch on the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
i
You cannot use the ventilation to cool the
vehicle interior to a temperature lower than
the outside temperature.
Activating/deactivating
X
Turn the key to position 0 in the ignition lock
or remove it (Y page 133).
X
Press the Ì button.
The indicator lamp in the Ì button lights
up or goes out.
The indicator lamp in the button indicates that
the respective function is activated.
i Residual heat is switched off automatically:
R
after approximately 30 minutes
R
when the ignition is switched on
R
if the battery voltage drops
R
when the auxiliary heating is switched on
Auxiliary heating
Important safety notes
G
DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac-
tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To
guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from
the wind.
G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable materials such as leaves, grass or
twigs may ignite if they come into contact
with:
R
hot parts of the exhaust system
R
the exhaust gas itself
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
R
no flammable materials come into contact
with hot vehicle components
R
the exhaust gas can escape from the
exhaust pipe unhindered
R
the exhaust gas does not come into contact
with flammable materials.
The auxiliary heating and the exhaust gas outlet
are situated in front of the right-hand front
wheel.
!
Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of
two times, drive for a longer distance.
Switch the auxiliary heating on regularly once a
month for about ten minutes.
The auxiliary heating timer function calculates
the switch-on time according to the outside
temperature so that the vehicle is preheated by
the departure time. When the departure time is
reached, the auxiliary heating continues to heat
for a further five minutes and then switches off.
126
Operating the climate control system
Climate control
The auxiliary heating heats the air in the vehicle
interior to the set temperature. This occurs with-
out using the heat of the running engine. The
auxiliary heating is operated directly using the
vehicle's fuel. For this reason, the fuel tank must
be at least Õ full to ensure that the auxiliary
heating functions.
The auxiliary heating/ventilation automatically
adjusts to changes in temperature and weather
conditions. For this reason, the auxiliary heating
could switch from ventilation mode to heating
mode or from heating mode to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventilation
switches off when you turn the key to key posi-
tion 2 (Y page 133).
The auxiliary heating switches off automatically
after 50 minutes.
You cannot use the auxiliary ventilation to cool
the vehicle interior to a temperature lower than
the outside temperature.
Before switching on
X
Turn the key to position 2 in the ignition lock
(Y page 133).
X
Set the desired temperature.
Auxiliary heating or ventilation can also be
switched on if the manually set climate control is
activated. Optimum comfort is attained by set-
ting the system to automatic mode. Set the tem-
perature to 22 †.
The auxiliary heating or auxiliary ventilation can
be switched on/off using the button on the
centre console or the remote control.
The on-board computer can be used to specify
up to three departure times, one of which may
be preselected (Y page 211).
Switching the auxiliary heating/venti-
lation on or off using the button on the
centre console
General notes
The colours of the indicator lamps on button :
signify the following:
R
Blue: auxiliary ventilation activated
R
Red: auxiliary heating activated
R
Yellow: departure time preselected
(Y page 211)
Activating/deactivating the auxiliary
heating or auxiliary ventilation
X
Press button :.
The red or blue indicator lamp in button :
lights up or goes out.
Switching the auxiliary heating/venti-
lation on or off using the remote control
General notes
Your vehicle comes with one remote control.
You may use two additional remote controls for
your vehicle. For more information, please con-
tact a qualified specialist workshop.
Store the remote control for the auxiliary heat-
ing so that the auxiliary heating cannot be
switched on unintentionally. In particular,
ensure that the remote control for the auxiliary
heating is kept out of the reach of children.
The remote control has a range of approximately
300 metres. This range is reduced by:
R
sources of radio interference
R
solid objects between the remote control and
the vehicle
Operating the climate control system
127
Climate control
Z
R
the remote control being in an unfavourable
position in relation to the vehicle
R
transmitting from an enclosed space
If the remote control battery is low, the battery
symbol on the left of the display is shown as
empty. Replace the remote control battery and
observe the important safety notes when doing
so (Y page 129).
Activating/deactivating the auxiliary
heating or auxiliary ventilation
Remote control
:
Display
;
u Switches the auxiliary heating or aux-
iliary ventilation on
Checks the status
=
. Sets the departure time
?
^ Switches the auxiliary heating or aux-
iliary ventilation off
A
, Sets the departure time
X
To switch on: press and hold the u but-
ton.
ON is shown in the remote control display.
X
To switch off: press and hold the ^ but-
ton.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing or auxiliary ventilation
X
Briefly press the u button.
The following messages may appear on the dis-
play:
Display Meaning
The auxiliary heating or
auxiliary ventilation is
deactivated.
The auxiliary ventilation is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
heating.
A departure time has been
activated. The departure
time appears on the dis-
play.
A departure time has been
activated. The auxiliary
ventilation is currently
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation. If the vehicle is
not started after this time,
the running time is
increased by five minutes.
A departure time has been
activated. The auxiliary
heating is currently activa-
ted. The number on the
display shows the remain-
ing time (in minutes) for
the auxiliary heating. If the
vehicle is not started after
this time, the running time
is increased by five
minutes.
If the engine has not yet reached operating tem-
perature when it is started, the auxiliary heating
running time is increased. The auxiliary heating
continues to run until the operating temperature
is reached. If this is the case, the y symbol
appears in the remote control display and the
running time is zero minutes.
Setting the departure time
Make sure that the time set in the vehicle is
correct before setting the departure time (see
the separate operating instructions). Otherwise,
the auxiliary heating may activate at the wrong
128
Operating the climate control system
Climate control
time and at an unsuitable location. When setting
the departure time, observe the important
safety notes (Y page 126).
X
Briefly press the u button.
X
Press the , or . button repeatedly
until the time to be changed appears in the
display.
X
Press the u and ^ buttons at the same
time.
The Î symbol in the remote control display
flashes.
X
Press the , or . button to set the
desired departure time.
i
The longer you press the , or . but-
ton, the faster the time changes.
X
Press the u and ^ buttons at the same
time.
The new departure time is stored.
Activating the set departure time
X
Briefly press the u button.
X
Press the , or . button repeatedly
until the desired departure time appears in
the display.
X
Press the u button.
The Í symbol, the departure time and,
depending on the selected departure time,
the letter A, B or C appear in the display.
Deactivating the set departure time
X
Briefly press the u button.
The status of the auxiliary heating is shown on
the display.
X
Press the . button.
The first departure time stored appears on the
display.
X
Press the ^ button.
OFF is shown in the remote control display.
Replacing the remote control battery
Important safety notes
G
WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
H
Environmental note
Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Replacing the battery
A CR2450 lithium battery is required when
replacing the battery.
X
Press a pointed object into recess :.
X
Slide battery cover ; backwards in the direc-
tion of the arrow.
X
Insert new battery = with the lettering facing
upwards.
X
Slide battery cover ; in the opposite direc-
tion to the arrow on the remote control until it
engages.
Operating the climate control system
129
Climate control
Z
Problems with the auxiliary heating/ventilation
Problem
Possible causes/consequences and MM Solutions
FAIL¨ The signal transmission between the transmitter and the vehicle is
faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary.
X
Make another attempt to switch the auxiliary heating/ventilation on
or off using the remote control.
FAIL The auxiliary heating cannot be switched on or has switched itself off.
The starter battery is not sufficiently charged.
X
Charge the starter battery.
X
Make another attempt to switch on the auxiliary heating/ventilation
using the remote control.
The auxiliary heating cannot be switched on or has switched itself off.
The fuel tank content is below the reserve fuel level.
X
Refuel at the nearest filling station.
X
Make another attempt to switch on the auxiliary heating using the
remote control.
The auxiliary heating/ventilation cannot be switched on or has
switched itself off.
The auxiliary heating/ventilation is malfunctioning.
X
Have the auxiliary heating/ventilation checked at a qualified spe-
cialist workshop.
Air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R
keep the air inlet between the windscreen and
the bonnet free of blockages, such as ice,
snow or leaves
R
never cover the vents or ventilation grilles in
the vehicle interior
i
Optimal climate control function is achieved
by opening the air vents fully and setting the
adjusters to the middle position.
130
Air vents
Climate control
Adjusting the air vents
:
Side window demister vent
;
Side air vent
X
To open a side air vent: turn the adjuster in
side air vent ; to the left.
X
To close a side air vent: turn the adjuster in
side air vent ; clockwise as far as it will go.
i
The centre and rear air vents are adjusted in
the same way.
Air vents
131
Climate control
Z

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