Lancia Thesis 2007 Owner handbook (in English)

240
DIESEL PARTICULATE
FILTER (DPF)
(2.4 JTD
20VCAE version)
The Diesel Particulate Filter is a me-
chanical filter, integral with the ex-
haust system, that physically traps
particulate present in the exhaust
gases of Diesel engines.
The diesel particular filter has been
adopted to eliminate almost totally
particulates in compliance with cur-
rent / future law regulations.
During normal use of the car, the
engine control unit records a set of
data (e.g.: travel time, type of route,
temperatures, etc.) and it will then
calculate how much particulates has
been trapped by the filter.Since this filter physically traps par-
ticulates, it shall be cleaned (re-
claimed) at regular intervals by burn-
ing carbon particles. Reclaiming pro-
cedure is controlled automatically by
the engine control unit according to
the filter conditions and the condi-
tions of use of the car. During re-
claiming the following phenomena
could take place: idling slight in-
crease, fan activation, slight smoke in-
crease, high exhaust temperatures.
These situations shall not be consid-
ered as faults and they do not affect
car performance and environment. Diesel particulate filter clogged
When the Diesel particulate filter is
clogged, the instrument panel warn-
ing light èwill turn on (on certain
versions symbol èis displayed). In
this case keep the car running until
warning light è(or symbol è) turns
off.

241
After travelling a few
kilometres, check that the
screws securing the rack
are tight.
Distribuite the load
evenly and remember,
when driving the car, that
the car is now more susceptible to
side wind.
Never exceed the per-
mitted weights (refer to
the “Technical specifica-
tions” chapter).ROOF RACK –
SKI RACK
ANCHORAGE POINTS
The car roof features four brackets
for anchoring the roof rack/ski rack
(fig. 219); these brackets are hidden
by small covers.
To use the brackets, lift the covers
by levering on point A(fig. 220).
Fasten the roof rack/ski rack to the
brackets, by following the provided
instructions.After removing the roof rack/ski
rack, lower the covers by engaging
them into their seats.
IMPORTANTStrictly comply with
the law regulations in force concern-
ing maximum overall dimensions.
Strictly follow the assembly
instructions provided with the roof
rack/ski rack set. Assembly should
be made by qualified personnel.
fig. 219
L0A0083b
fig. 220
L0A0084b

HEADLIGHTS
GAS-DISCHARGE (BI-XENO)
MAIN BEAM / DIPPED BEAM
HEADLIGHTS AND DYNAMIC
BEAM ADJUSTMENT DEVICE
These headlights, called Bi-Xeno,
use a lamp with a xenon-filled bulb,
both for the dipped beam and the
main beam headlights.
The main characteristics of this
type of headlights are:
– higher brilliancy
– higher light beam width and
adjustability
– lower consumption under work-
ing conditions
– longer bulb life.Each headlight is equipped with an
electronic control unit used to con-
trol supply voltage. Due to high bril-
liancy, bi-Xeno headlights require
the adoption of a dynamic beam
adjustment control system.
This system is controlled by an
electronic control unit operating at
two levels:
– constant headlight beam realign-
ment as a function of the car load
– dynamic headlight beam align-
ment to compensate car pitching
when running.Operation
Light is projected onto the road by
means of a spherical glass lens with
a large surface (70 mm diameter).
A deflector lifts and lowers, so that
light distribution is different for
both the main beam and dipped
beam headlights. The deflector is
electrically operated and the
mechanical lifting/lowering opera-
tion is performed real-time when
lights are switched.
The xenon lamp consists of a bulb
containing low-pressure xenon and
two electrodes.
To obtain light emission, an elec-
tric arc must be triggered between
the two electrodes and maintained.
Each headlight is equipped with a
control unit which:
– checks the voltage/current value
under working operation
– triggers the arc to the electrodes
and cause salt evaporation at
switching on.
242

243
Automatic dynamic beam adjust-
ment device
Bi-Xeno headlights require, due to
produced brilliancy, an automatic,
dynamic beam adjustment system.
This system is managed by an elec-
tronic control unit that controls the
actuators mounted on each dipped
beam headlight. Actuator control
depends on the processing of the sig-
nals from two orientation sensors.
This automatic dynamic beam
adjustment system provides the fol-
lowing advantages:
– it avoids dazzling the vehicles
coming from the opposite direction
– it stabilizes the illuminated area
so as to improve active safety.Headlight beam adjustment con-
trol unit
The control unit calculates the
instant car trim, by comparing the
signals from the orientation sensors.
A “correction” signal is sent to the
actuators to adapt light beam orien-
tation to the calculated car trim.
To avoid oscillation of the anti-
dazzling beam in case of particular
road surfaces (paved surfaces, dirt
roads, etc.) or abrupt movements of
the car caused by the driver (clutch
disengagement, gear change, etc.),
the control unit reduces the number
of corrections to be made on the
light unit.Fault indication
Anomalies in the operation of one
or several system components are
signalled by the lighting of symbol
6on the multifunction display,
together with message “HEAD-
LAMP INCLINATION ADJUST-
MENT SYSTEM FAULT”.
IMPORTANT In case of faults,
contact a Lancia Dealership.
In case of component anomaly or
voltage drop, the system controls in
any case system operation according
to the following logic:
– faulty front sensor: trim calcula-
tion is made by replacing the voltage
value read on the faulty sensor with
a stored, fixed value
– faulty rear sensor: the system is
switched to the safety operation
mode and keeps the headlights in a
preset position of maximum lower-
ing allowed by the light beam.

244
– Failed connection of actuators: if
the control signal is failing, the actu-
ators will be brought back to the
position of maximum lowering per-
mitted for the light beam
– control unit failure: depending on
the type of failure, the system can
remain in the position where it was
when the failure occurred, or set
itself for the maximum lowering per-
mitted for the light beam
– voltage drop: when voltage falls
below 9 V, the system remains in the
position where it was when the fail-
ure occurred.HEADLAMP ORIENTATION FOR
LEFT-/RIGHT HAND DRIVE
The car headlights are equipped
with Bi-Xeno lamps with high light-
ing power; therefore, when you trav-
el from a country with right-hand
drive to one with left-hand drive, or
vice versa, dipped beam headlight
orientation must be modified.
This operation is necessary to avoid
dazzling the vehicle coming from the
opposite direction, as well as to opti-
mize road edge illumination.To carry out this opera-
tion, contact a Lancia
Dealership.
When you go back to
your country of origin,
remember to have the
dipped beam headlight orienta-
tion modified again.

245
EOBD SYSTEM
The EOBD (European On Board
Diagnosis) system continuously
monitors the engine emission system
components. Furthermore, the sys-
tem warns the driver of deterioration
concerning the emission system
components by means of the instru-
ment panel warning light Ucoming
on with message “ENGINE CON-
TROL SYSTEM FAULT”.The objective is to:
– monitor system efficiency;
– warn when failures can increase
emissions over the threshold estab-
lished by the European regulations;
– warn of the need to replace dete-
riorated components.
Furthermore, the system is
equipped with a connector for inter-
facing with specific tools used to
read the error codes stored in the
control unit memory along with a set
of diagnostic and engine specific
parameters. This check can also be
performed by traffic controller
agents.Contact a Lancia
Dealership as soon as
possible if the instrument
panel Uwarning light either
does not come on when the key is
turned to MAR or comes on, with
fixed or flashing light, when trav-
elling together with message
“ENGINE CONTROL SYSTEM
FAULT”. Warning light Uoper-
ation can be checked by traffic
controller agents. Comply with
the regulations in force in the
country where you are travelling.
IMPORTANTAfter eliminating
the problem, your Lancia
Dealershipwill run a bench test to
fully check the system. In some
cases, a long road test may be
required.

246
ABS
GENERAL
If this is the first car with ABS you
drive, get familiar with it by some
preliminary “driving tests” on poor
grip roadbeds, obviously under safe-
ty conditions and in compliance with
the traffic regulations of the Country
you are driving in. Read carefully
the following instructions.
The ABS (wheel anti-locking) sys-
tem prevents wheel locking and con-
sequent slipping in all road surface
conditions. This ensures greater con-
trol, as it is possible to steering and
brake at the same time, and reduces
braking space.
If the road conditions decrease the
friction coefficient (i.e. due to the
presence of water, snow, ice, etc.) a
wheel may slip; in this case, the
wheel does not ensure correct decel-
eration or the possibility of main-
taining the running direction and
the ability to steer. Here, the ABSsystem comes into operation, elimi-
nating hydraulic pressure only from
the brake caliper of the locked wheel
and, as soon as the latter start spin-
ning again, brakes it again, thus
ensuring optimum braking and car
driveability.
EBD (ELECTRONIC BRAKE-
FORCE DISTRIBUTOR)
The car is equipped with an elec-
tronic brakeforce distributor (EBD)
which, by means of the ABS control
unit and sensors, makes it possible
to optimally distribute the braking
force between the front and rear
wheels, thus avoiding car skidding
in the most difficult situations.ABS OPERATION
The electronic control unit receives
and processes the signals from the
brake pedal and from the four sen-
sors on the wheels. It consequently
controls the hydraulic system so to
decrease, hold or increase the pres-
sure in the braking circuit of every
single wheel, and prevent locking.
The main components of the ABS
system are:
- an electronic-hydraulic control
unit, which processes the signals
from the various sensors and per-
forms the most appropriate opera-
tions by acting on the solenoid
valves
- four sensors which detect the
rotation speed of every single wheel
- a pump provided with pressure
switch, to restore brake fluid pres-
sure.
IMPORTANTA slight pulsation of
the brake pedal may be felt when
the ABS system comes into play.

247
The car is fitted with an
electronic brake force
distributor (EBD). The x
and >warning lights come on at
the same time on the multifunc-
tion display, together with mes-
sage “EBD SYSTEM FAULT”,
when the engine is running to
indicate that there is an EBD sys-
tem failure. In this case violent
braking may be accompanied by
early rear wheel locking with the
possibility of skidding. Drive the
car extremely carefully to the
nearest Lancia Dealership to
have the system checked.
If warning light x
comes on together with
message “LOW BRAKE
FLUID LEVEL”, on the multi-
function display, stop the car
immediately and contact a Lancia
Dealership. Fluid leakage will
compromise efficiency of both the
traditional brake system and the
ABS system.The system performance
in terms of active safety
must not lead the driver
to take unnecessary or unjusti-
fied risks. Always suit your dri-
ving style to the weather, visibili-
ty and traffic conditions.
Excessive use of engine
braking (gears tooshort
and limited grip) may
make the wheels slip. The ABS
will have no effect on this type of
skidding.
The maximum possible
deceleration always
depends on the available
road grip. Obviously, grip will be
considerably decreased in the
presence of snow and ice. In these
conditions, the braking space
will still be high, even with the
ABS.The coming on of the
>warning light on the
multifunction display,
together with message “ABS SYS-
TEM FAULT”, when the engine is
running, normally indicates a
fault in the ABS system. In this
case the braking system will still
be effective although without the
anti-lock device assistance. In
these conditions, EBD system
operation may also be reduced.
Drive the car extremely carefully
to the nearest Lancia Dealership
to have the ABS system checked.

248
fig. 224
L0A213b
SOUND SYSTEM
The car is equipped with a com-
plete sound system, consisting of the
following:
– RDS-TMC radio integral with the
CONNECT system
– audio CD/navigation CD-ROM
player A(fig. 221) on the dashboard
– audio cassette player Bon the
dashboard– multiple compact disc player
(CD-changer) C(fig. 222) in the
glove compartment (where fitted)
– BOSE HI-FI system (where fit-
ted).
For detailed instructions on the
Radio, CD and CD-Changer, refer to
the CONNECT supplement provid-
ed with the car.
SPEAKERS
Front speakers (fig. 223)
The front speakers Aare housed in
front door panels.Rear speakers (fig. 224)
The rear speakers Bare housed in
the rear door panels.
fig. 221
L0A0210b
fig. 222
L0A0217b
fig. 223
L0A0215b

249
fig. 226
L0A286b
Speakers on the rear window
shelf (fig. 225)
Speakers Care located at the ends
of the rear window shelf.
BOSE HI-FI SOUND SYSTEM
The HI-FI sound system consists of:
– two high-performance woofers
(168 mm diameter), fitted in front
door panels
– two coaxial tweeters (50 mm
diameter) built-into the front door
woofers
– two high-performance, wide-
band mid-range speakers (160 mm
diameter), fitted in the rear door
panels– two high-performance sub-
woofers (230 mm diameter), fitted
on the rear window shelf
– speaker A(fig. 226) fitted in the
upper central part of the dashboard
– one high-power hi-fi amplifier,
five channels - four 25 W and one
100 W - class D, with analogue
equaliser for signal amplitude and
phase, fitted on the right-hand side
of the boot A(fig. 227).
Total sound power: 300 W.
The HI-FI sound system was
specifically designed for the THESIS
to offer the best acoustic perfor-
mance and the musical realism of a
live concert in each seat in the pas-
senger compartment.System characteristics include
crystalline treble and full, rich bass-
es. Furthermore, the complete range
of tones is played in the entire pas-
senger compartment embracing the
passengers with the feeling of space
typical of live music.
The system components are
patented and result from state-of-
the-art technology. At the same
time, the system is easy and intuitive
to use and allows even the least
experts to use the system to the best.
fig. 225
L0A211b
fig. 227
L0A209b