2007 Lancia Thesis fuel pump

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.

164
This function can be activated with
the CONNECT (from the main
SETUP screen) or with the remote
control.
The system works with this mode on
if the following conditions are present
– outside temperature lower than 20
°C
– coolant temperature lower than 50
°C
– ignition key at STOPor removed
– car battery charged
– fuel not in reserve.
When this mode is on, the heater is
deactivated when one of the following
conditions occur:
– end of planned working time
– OFF signal from the remote con-
trol
– manual shutdown by the user
through CONNECT– ignition key at MAR
– partial battery rundown
– fuel in reserve
– malfunction detected by the heater
control unit.
Timed heater activation/
deactivation through CONNECT
Timed heater activation and deacti-
vation can be set through the CON-
NECT. Select and confirm “Heater”
on the main SETUP screen to display
the parked-car heater settings.
Settings available are the following:
– Operate now
– Timer 1
– Timer 2.
To activate/deactivate the required
function, select and confirm it with
the CONNECT right knob.“Operate now”
The option “Operate now” enables
to warm the passenger compartment
with the engine stopped and warm
and the ignition key to MAR, using
the engine coolant, heater coolant cir-
culation pump, automatic air distrib-
ution control (if not set manually) and
closing air recirculation. The timer
cannot be programmed when this
function is on.
To guarantee the required comfort,
this function shall be mainly activated
when coolant is hot enough. When
coolant temperature is lower than 50
°C the control unit starts the heater,
and when temperature is over 70 °C,
the control unit turns the heater off
and lets only the coolant circulation
pump keep on working.

165
The “parked-car heater” mode is
automatically deactivated when one
of the following conditions takes
place:
– engine started
– limit time (around 30 minutes) of
heater and/or coolant pump func-
tioning overcome
– turn off requested by the user
through the CONNECT
– malfunction detected by the heater
control unit
– partial battery run-down or alter-
nator fault.
“Timer 1” and “Timer 2”
The “Timer” options shall be used
to programme two heater daily cycles;
for each cycle enter the time of acti-
vation and the length of operation
both with 5 minute intervals.
Each cycle cannot last more than 60
minutes. The default operation is 15
minutes. The timer works regardless
of the ignition key position.During heater operation, messages
referred to the following conditions
are shown on CONNECT display:
– fuel level in reserve (continue any-
way?)
– fuel level in reserve. Parked-car
heater has been switched off
– parked-car heater not operating
because of cooling down
– parked-car heater not operating
because external temperature is
higher than 20 °C
– parked-car heater not operating
because motor is on
– parked-car heater has been
switched off because of low voltage.IMPORTANTFor safety reasons,
the timer must be programmed/con-
firmed at any activation and con-
firmed not later than 24 hours since
programming. In addition, the user
must confirm every time the timer ac-
tivation. The timer does not automat-
ically correct standard time.
The timer can be in one of the fol-
lowing conditions:
– off: in this condition the timer is
programmable and parameters can be
loaded or adjusted. Loaded parame-
ters should be valued and approved
by CONNECT
– on: activated parameters approved
by CONNECT are stored in the mem-
ory. The user confirms the set cycle
waiting for the programmed activa-
tion moment which is indicated on the
CONNECT display
– active: the heater is working in
“programmable heater” mode con-
trolled by the timer present on the
CONNECT display. When the timer
is activated, the CONNECT records
the system conditions

300
Devices and utilities
Passenger door point (power supply)
Instrument panel point
Steering angle sensor point
(*) As an alternative for certain versions/markets
Parking sensor point
TV tuner point
Boot point
Steering wheel point
Central console control panels
Fuel pump
Doors (electrified lock actuators)
Spark plug pre-heating
EOBD system diagnostic socket
Current socket in boot
Current socket in rear armrest
Parking heater (control unit)
Additional heater
Fuse
10
14
16
19 (*)
13 (*)
19
15
14
15
11
15
15
21
11
2
6
22
13
2
3
4
9
Ampere
20
10
10
10
10
7.5
7.5
10
7.5
20
7.5
7.5
15
20
60
10
20
20
15
20
50
20
Location
fig. 73
fig. 73
fig. 73
fig. 78
fig. 73
fig. 73
fig. 73
fig. 78
fig. 73
fig. 78
fig. 73
fig. 73
fig. 75
fig. 78
fig. 75
fig. 73
fig. 73
fig. 78
fig. 73
fig. 78
fig. 75
fig. 75

347
Modifications or repairs to the fuel system that are not carried out properly or do not take the system’s
technical specifications into account can cause malfunctions leading to the risk of fire.
3.2 V6 CAE
BOSCH ME7
Multipointsequential
electronic injection
Static electronic
integral with
ignition and
single coil
1-4-2-5-3-6
-
NGK PFR6B 2.4 JTD 20V CAE
BOSCH COMMON
RAIL MULTIJET
direct injection,
BOSCH RADIALJET
injection pump,
electronically controlled
variable geometry
turbosupercharger
with intercooler
-
-
1-2-4-5-3
-
Fuel feed
Ignition
Firing order
Injection order
Spark plugs