2006 Lancia Thesis cooling

108
fig. 106
L0A0236b
ENGINE COOLANT TEMPERA-
TURE GAUGE WITH OVER-
HEATING WARNING LIGHT
(fig. 105)
This instrument indicates the
engine coolant temperature. It starts
signalling the temperature when this
reaches approximately 50 °C.
The needle should usually be on
middle scale values. reduce your
demand on the engine if the needle
approaches top scale values.The warning light Awill come on
together with message “ENGINE
COOLANT TEMPERATURE
HIGH” on the instrument panel dis-
play to indicate that the coolant
temperature is too hot. In this case,
stop the engine immediately and
contact a Lancia Dealership.
IMPORTANTThe needle may
approach the top scale values if the
engine cooling radiator external part
is obstructed or dirty. In this case,
inspect and remove the obstructions.
Accurately clean the external part of
the radiator as soon as possible.FUEL GAUGE AND RESERVE
WARNING LIGHT (fig. 106)
The fuel reserve warning light A
will come on together with message
“REFUEL” on the instrument panel
display to indicate that there are
approximately 10 litres of fuel in the
tank.
IMPORTANTDo not travel with
the fuel tank almost empty: the gaps
in fuel delivery could damage the
catalyst.
fig. 105
L0A0235b

150
The cooling system uses
coolant “R134a” refriger-
ating fluid that meets cur-
rent regulations and does not
pollute the environment if it acci-
dentally leaks. Under no circum-
stances should other fluids be
used which are incompatible
with the system components. BACK CONTROL PANEL
(fig. 122)
1- Inside temperature adjustment
knob (back-seat passengers)
2- Display for set inside tempera-
ture (back-seat passengers)
3- Fan speed display 4- System status display (AUTO,
FULL AUTO)
5- Button for automatic system
selection (back-seat passengers)
6- Button for rear footwell air
vents
7- Button for fan speed reduction8- Button for fan speed increase
9- Button for air distribution
through front back vents
fig. 122
L0A0101b

152
CONTROLS
Knobs for adjusting air tempera-
ture (2, 8 fig. 121 - 1 fig. 122)
Turn the knobs towards the right
or towards the left to raise or lower
the air temperature required respec-
tively in the front left-hand area
(knob 2 fig. 121) and in the front
right-hand area (knob 8 fig. 121) or
back area (knob 1 fig. 122) of the
passenger compartment.
Since the system controls three
areas of the passenger compartment,
the driver and the front/back-seat
passengers can select different tem-
perature values with a maximum
difference accepted by the system of
7 °
C.
Temperature control in the front
passenger area and in the back pas-
senger area is alternated; when the
button led REARis off, control of
front passenger side is on, but when
button REARis pressed (button led
on) the back control panel is activat-
ed. The set temperatures are shown on
the displays set near the respective
knobs.
Press button 16(MONO - fig. 121)
to automatically align the
(front/back) passenger temperature
to the temperature on driver’s side.
Consequently the temperature in the
two areas can be set simply by turn-
ing the knob on the driver side 2
(fig. 121). This function is provided
to facilitate adjusting the temperature
in the passenger compartment when
only the driver is present. The sepa-
rate operation of the set temperatures
and air distribution is automatically
reset when knobs 8 (fig. 121) or 1
(fig. 122) are turned or button 16
(MONO - fig. 121) is pressed again,
when the button led is turned on.
Turn the knobs fully to the right or
to the left to the end positions HIor
LO, to obtain maximum heating or
cooling, respectively:– HIfunction (maximum heating):
this is switched on by turning the
temperature knob to the right
beyond the maximum value (32 °C).
It can be independently switched on
from driver’s side or from
(front/back) passenger’s side or
from both sides (also by selecting the
MONOfunction).
This function can be switched on to
speed up heating in the passenger
compartment by exploiting the sys-
tem potential to the maximum. The
function employs the maximum
coolant temperature while the air
distribution and fan speed are set by
the system according to environ-
mental conditions. In particular, if
the coolant temperature is not suffi-
cient, the function does not switch
the fan on at top speed to limit let-
ting into air which is not adequately
warm.
All the manually settings can be
adjusted when the function is on.

153
To switch this function off, turn
the temperature knob to the left and
set the required temperature.
– LOfunction (maximum cooling):
it is activated by turning the temper-
ature knob to the left beyond the
minimum value (16 °C). It can be
independently switched on from dri-
ver’s side or from (front/back) pas-
senger’s side or from both sides (also
by selecting the MONOfunction).
This function can be switched on to
speed up cooling the passenger com-
partment by exploiting the system
potential to the maximum. This
function cuts out the heater and
switches the air recirculation and the
climate control compressor on. The
air distribution and the fan speed
are selected according to the envi-
ronmental conditions. All the manu-
ally settings can be adjusted when
the function is on. To switch this
function off, turn the temperature
knob to the right and set the
required temperature.Buttons for adjusting front air
distribution (10, 18 fig. 121)
Press these buttons to manually
select one of the seven possible air
distribution patterns in the front
passenger compartment (right and
left side):
AAir flow to windscreen and front
side window vents for defrosting/
demisting the windows.
FDAir flow to central and side
dashboard vents and the rear vents.
IMPORTANTOn versions equipped
with solar cell operated sunroof
(where provided), to check opera-
tion at first speed of climate control
system fan when the car is parked,
disengage air vents and set air distri-
bution from central dashboard vents
only before leaving the car.
SAir flow to the front and rear
footwells. The air distribution pat-
tern, due to the natural tendency of
heat to move upwards, allows to
heat the passenger compartment up
as fast as possible. Furthermore, it
offers a prompt feeling of warmth to
the coolest parts of the body.Air flow shared between
footwell vents (warmer air)
and central and side dashboard
vents and the rear vents (cooler air).
This air distribution pattern is par-
ticularly useful in middle seasons
(spring and autumn) when it is
sunny.
Air flow shared between the
footwell vents and the windscreen
and front side window
defrosting/demisting vents. This air
distribution pattern ensures a good
heating of the passenger compart-
ment and prevents possible misting
up.
Air flow distribution between
central and side dashboard
vents, rear vents and windscreen
and front side window vents.
Air flow distribution
between all passenger com-
partment vents.
Air distribution setting is displayed
when leds relevant to the selected
button are lit, which will be turned
off in case of fully automatic opera-
tion (FULL AUTO). F
SD
A
S
FA
D
FA
SD

158
IMPORTANTAir at a temperature
lower than that of the outside air
cannot be let in to the passenger
compartment when the compressor
is off. Furthermore, in particular
environmental conditions, the win-
dows could mist up fast because the
air is no longer dehumidified.
The setting will be stored when the
engine is stopped. Either press √
button again or press the AUTObut-
ton to reset automatic control of the
compressor (in the latter case, the
manual settings will be cancelled).
The led on the √button will go out. IMPORTANTThe air recircula-
tion function will allow, according to
the system operation (i.e. heating or
cooling) to reach the required condi-
tions faster. We recommend not
turning on this function on rainy
and/or cold days as this will consid-
erably increase window misting,
especially if the climate control sys-
tem is off.
In particular climate
conditions (e.g. low out-
side temperature or high
humidity) and with the inside air
recirculation automatic control
on, windows could start misting
up. In this case, press the air
recirculation button and set it to
forced open position (both button
leds off), and increase air flow to
the windscreen, if required.Climate control system
compressor off button (7 fig. 121)
Press the √button, when the but-
ton led is on, to switch the air condi-
tioner compressor off. The led will
go off. By pressing again the button
when the led is off, the system auto-
matic control of the compressor acti-
vation is restored; this situation is
indicated by button led lighting up.
When the air conditioner compres-
sor is off, if the system is no longer
able to keep the requested tempera-
ture, the message FULL AUTOon
the display turns off and the system
deactivates air recirculation to pre-
vent window misting up. Instead, if
the system is still able to maintain
the requested temperature, the mes-
sage FULLon the display will stay
on.

161
ACTIVE CARBON
DUST/POLLEN FILTER
The filter has the specific capacity
of combining a mechanical air
cleaning action and an electrostatic
effect so that the air let into the pas-
senger compartment is purified from
particles such as dust, pollen, etc.
In addition to this function, the fil-
ter efficaciously reduces the concen-
tration of pollutants thanks to a
layer of active carbon inside the fil-
ter.
The filtering action is carried out
on the air let in from outside (recir-
culation off).
Have the filter checked at least
once a year at a Lancia
Dealership, ideally at the begin-
ning of the summer.The efficacy of the cli-
mate control system may
be considerably reduced
if the filter is not replaced.Fan actuation is automatic and air
distribution corresponds to the latest
setting made before switching the
car off.
This function is useful especially on
summer days since it greatly reduces
the temperature inside the passenger
compartment as well as the duration
of the cooling cycle after car start-
up, thus avoiding the accumulation
of warm air in the air conditioning
unit lines.
IMPORTANTBest operation of
the fan when the car is parked is
obtained by closing completely the
windows and sunroof. Furthermore,
to check operation at first speed of
the fan, disengage air vents and set
air distribution from central dash-
board vents only before leaving the
car.You should have the filter checked
and if required replaced more fre-
quently if the car is mainly used in
polluted or dusty areas.
VENTILATION DURING A STOP
In versions with sunroof, the roof
top features 21 photovoltaic cells
supplying a maximum power of 24
W to supply the climate control sys-
tem fan when the car is parked with
the roof closed or horizontally pivot-
ing.

162
SUPPLEMENTARY
HEATER
The supplementary heater can
work with the engine off or on and it
allows the following:
– to heat the engine coolant before
start up
– to reduce the engine warming up
time after cold starting
– to warm up the passenger com-
partment before departure
– to remove ice or condensate from
the windows.
Using the heater in winter has the
following advantages:
– to reduce engine wear
– to reduce polluting emissions
– to improve comfort during dri-
ving and stops
– to improve safety.The supplementary heater function
is useful to integrate the engine
coolant warming up during driving
in order to reach and keep the opti-
mal working temperature of the pas-
senger compartment heater in the
quickest way, especially if the cli-
mate is extremely cold.
The system is composed of:
– a heating unit
– an electric pump for the engine
coolant circulation
– an exhaust pipe with muffler
– an electric pump metering the
fuels
– a fuel delivery pipe
– a sensor for outside air tempera-
ture.The system is connected to the car
through the engine cooling system,
the fuel system and the electric sys-
tem. The coolant coming out from
the engine is conveyed to the heater
and made flow in the circuit by an
electric pump. The heater burner is
supplied with the car fuel taken
directly from the tank by means of
an electric pulse pump and then
conveyed to the appropriate system
pipe. The heater control unit sup-
plies directly both electric pumps
(fuel and coolant), activates and
checks the heater functions.
The supplementary heating system
works both with the engine running
and the engine stationary. These two
conditions determine the type of sys-
tem operating mode:
– when the engine is stationary the
supplementary heater can work in
“programmable heater” or “parked-
car heater” mode;

163
– when the engine is running the
system works only in “supplemen-
tary heater” mode.
Regardless of the operating mode,
the start up procedure for the sup-
plementary heater, once it has been
activated, is the following:
1- Fan activation for comburant
air, for at least 30 seconds, to venti-
late and oxygenate the combustion
chamber. The fan speed is progres-
sively increased until the average
operating value is reached.
2- After about 30 seconds, the
heater control unit activates the
electric pump metering the fuel and
the comburant air fan is deactivated
for at least 3 seconds, in order to
facilitate fuel burning. A spark plug
starts combustion inside the heater.
3- At this point, there is a com-
bustion stabilizing phase which lasts
around 15 seconds, during which
the fan speed is kept at average
level.4- In the following 50 seconds the
control unit makes the fan reach
nearly its highest speed.
5- Once combustion has stabilized,
the heater control unit deactivates
the plug and the fan reaches its
maximum speed.
6- From now on the plug is used
by the system as a combustion and
flame sensor.
7- Regardless of the operating
mode, the heater extinction proce-
dure is always based on the combus-
tion chamber ventilation for about
30 seconds, in order to eliminate
completely any combustion remain-
der.
IMPORTANTAfter switching the
system off, both automatically or
manually, it can be switched on
again (ON) only approx. 3 minutes
after or when the CONNECT mes-
sage “COOLING DOWN” disap-
pears from the display. IMPORTANTAlthough in a lesser
quantity the heater burns fuel as the
engine. Therefore, to prevent poi-
soning and suffocation the supple-
mentary heater shall never be turned
on, even temporarily, in confined
areas like garages and workshops
not equipped with exhaust fans.
IMPORTANTThe heater must
always be turned off during refu-
elling and at filling stations to pre-
vent the risk of explosions.
IMPORTANTDo not park the car
over flammable materials like paper,
grass or dry leaves: risk of fire.
OPERATION WITH ENGINE
STATIONARY
“Programmable heater” mode
With this operating mode, the sys-
tem heats the engine coolant and the
passenger compartment before
starting the engine, it keeps air recir-
culation closed and activates air dis-
tribution to the windscreen and the
floor by operating the passenger
compartment fan.