2007 Lancia Thesis fuel

107
INSTRUMENTS
SPEEDOMETER (fig. 103)
The speedometer shows the car
speed expressed in kilometres per
hour (km/h) and starts signalling
the speed when the car speed
exceeds approx. 4 km/h (see the
indications given in paragraph “At
the filling station").REV COUNTER (fig. 104)
If the needle is in the hazard sector
(the section with red lines) it shows
that the engine is over-revving. Do
not travel with the needle in this sec-
tor.
When the engine is idling, the rev
counter may show a gradual or sud-
den increase in engine speed,
according to the case. This is normal
and indicates the operation of the
climate control compressor or fans,
etc. In particular, a gradual varia-
tion in engine revolution speed safe-
guards battery charge.IMPORTANTThe hazard sectors
can present different widths and dif-
ferent full scale values according to
the various car versions.
IMPORTANTThe electronic injec-
tion control system will progressive-
ly cut off the flow of fuel when the
engine is over-revving and the
engine will consequently lose power.
fig. 103
L0A0232b
fig. 104
L0A0233b

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

109
IMPORTANTRefuelling shall
always be performed with engine off
and ignition key to STOP. If the
engine is off but the key is to MAR,
a wrong fuel level could temporarily
be indicated. This is due to the inter-
nal system control logic and cannot
be considered as a system malfunc-
tioning.FLASH CONSUMPTION GAUGE
(fig. 107)
Gauge Ashows the flash consump-
tion: to prevent excessively variable
values the gauge shows the average
consumption of the last minutes of
travel expressed in l/100 km (litres
per 100 km).
This is helpful for the driver for
learning the fuel consumption in
relation to the driving style.The gauge needle has the following
position:
– value 0 l/100 km with car sta-
tionary
– near value 2 l/100 km when the
car speed is between 4 and 20 km/h
and when releasing the accelerator
pedal during driving
– actual consumption value
(between 2 and 20 l/100 km) for
speeds exceeding 20 km/h.
fig. 107
L0A0234b

126
Glow plugs (JTD versions)
Warning light/symbol
m
èm
Message
–
PLUG PREHEATING
FAULT
GO TO DEALERMeaning of the message
Symbol is displayed
when glow plugs
are working. Symbol goes off
when glow plugs reach
the preset temperature.
When outside temperature is high
symbol displaying can be unper-
ceivable
Plug preheating system
faultRemarks / Action
Start engine
as soon as symbol
goes off
Contact a Lancia
Dealership
Fuel level
Warning light/symbol
K
Message
REFUEL Meaning of the message
Low fuel in the tank.
This message is displayed
when about 10 litres
fuel are left in the tank Remarks
Top up fuel
as soon as possible
IMPORTANTDo not travel with
the fuel tank almost empty: the
gaps in fuel delivery could damage
the catalyst

Action
Before reactivating
the switch read care-
fully through the
instructions given in the rele-
vant paragraph
139
Rear fog lights
Warning light/symbol
o
p
q
Message
REAR FOG LIGHT
FAULT LEFT
GO TO DEALER
REAR FOG LIGHT
FAULT RIGHT
GO TO DEALER
REAR FOG LIGHT FAULT
LEFT AND RIGHT
GO TO DEALERMeaning of the message
Left-hand rear fog
light doesn’t turn on
Right-hand rear fog
light doesn’t turn on
Rear fog lights
don’t turn onAction
Contact a
Lancia Dealership
Contact a
Lancia Dealership
Contact a
Lancia Dealership
Number plate light
Warning light/symbol
r
Message
NUMBER PLATE LIGHT
FAULT GO TO DEALERMeaning of the message
One or both number plate lights
don’t turn onAction
Contact a Lancia
Dealership
Inertia switch (Fuel cut-off switch)
Warning light/symbol
s
Message
INERTIA
SWITCH ONMeaning of the message
Inertia switch has cut in
after an impact/collision

Action
The presence of water
in the fuel circuit may
cause serious damage
to the entire injection system
and cause irregular engine
operation. If there is water in
the fuel filter or the sensor is
faulty contact a Lancia
Dealership as soon as possible
140
Parking sensors
Warning light/symbol
t
Message
PARKING SENSOR
FAULT
GO TO DEALERMeaning of the message
One or more parking sensor
failureAction
Contact a Lancia
Dealership
Diesel fuel filter (JTD versions)
Warning light/symbol
c
èc
Message
MOISTURE IN DIESEL
FUEL FILTER
GO TO DEALER
DIESEL FUEL FILTER
SENSOR FAULT
GO TO DEALERMeaning of the message
Water in diesel fuel
filter
Water in diesel fuel filter sensor
failure

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.