Lancia THESIS. Service Manual - part 15

236

fig. 211

L0A0094b

After placing the load with the pro-

tection, secure it by means of the
belt to prevent it from shifting in
case of sudden braking or collision.

To secure the protection with the

load:

1) Get the protection belt to pass

around the armrest.

2) Hold the belt tight by pulling its

end, while holding buckle A (fig.
209).

3) Secure the load by inserting the

attachment of belt A (fig. 210) into
the buckle of the central rear safety
belt.

To release the protection with the

load:

1) Release the belt by pressing the

button on the safety belt buckle.

2) Loosen the tension of the belt by

making the latter slide into buckle A
(fig. 211) while pressing button B.

3) Slip the protection belt from the

armrest and fold it up into its seat.

Close the flaps by pushing them

into their seat to locking.

fig. 209

L0A0093b

fig. 210

L0A0095b

237

BONNET

Open the bonnet only

when the car is station-
ary.

To open the bonnet:

1) Open the driver’s door.

2) Pull lever A (fig. 212) in the

direction shown by the arrow.

3) Lift lever B (fig. 213) and

release the bonnet from the safety
retainer.

4) Lift the bonnet. 

IMPORTANT The bonnet is lifted

by two gas struts (fig. 214). Do not
tamper with the struts and follow
the bonnet in its movement.

fig. 212

L0A0019b

fig. 213

L0A6023b

fig. 214

L0A0285b

238

If repairs need to be car-

ried out inside the engine
compartment when this is

still hot, be careful not to burn
yourself and keep away from the
electric fan as this may cut in at
any time, even if the key is
removed from the ignition switch.
Wait until the engine has cooled.

Scarves, ties and other

loose articles of clothing
could easily get caught up

in moving parts.

To close the bonnet:

Lower the bonnet at approx. 20 cm

from the engine compartment and
then let it drop, ensuring that it is
fully closed and not just held in posi-
tion by the safety catch. If the bonnet
does not close properly do not push it
down but open it again and repeat the
above procedure. 

For safety reasons the

bonnet shall always be
perfectly closed when trav-

elling. Always check for proper
bonnet locking. If the bonnet is left
inadvertently open, stop the car
immediately and close the bonnet.

FUEL FILLER CAP

The fuel filler cap flap is controlled

automatically controlled by the cen-
tral door locking system. 

When central door locking is on,

the fuel filler flap cannot be opened;
when central door locking is off, the
flap can be opened by simply press-
ing on the front part in point A (fig.
215).

Open the fuel filler flap by turning

it in the direction shown by the
arrow until it is completely opened.

fig. 215

L0A0012b

239

In an emergency, the flap can be

released by pulling wire B (fig. 216)
on the right-hand side of the boot
inside the service compartment. 

To open the compartment flap,

turn the catch C (fig. 217) to 1 using
the ignition key and lower it.

IMPORTANT The airtight seal of

the cap may lead to a slight increase
of pressure in the tank. A hissing
sound when the cap is removed is
therefore quite normal.

The cap is equipped with a device

which fastens it to the flap so that it
cannot be misplaced D (fig. 218).

While you are filling up, fasten the

cap to the device inside the flap as
shown in the figure.

Do not put naked flames

or lighted cigarettes near
the fuel filler hole as there

is a danger of fire. Do not bend too
close to the hole either so as not to
breathe in harmful vapours.

REFUELLING

To guarantee full tank filling, carry

out two refuelling operations after the
first click of the fuel delivery gun. Avoid
further topping up operations that
could cause damages to the fuel system.

IMPORTANT Refuelling shall always

be performed with engine off and igni-
tion 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 internal system con-
trol logic and cannot be considered as
a system malfunctioning.

fig. 217

L0A0303b

fig. 218

L0A0014b

fig. 216

L0A0015b

240

DIESEL PARTICULATE 
FILTER  (DPF) 
(2.4 JTD 

20V

CAE 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 è will turn on (on certain
versions symbol è is 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.

IMPORTANT Strictly 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
6 on 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 U coming
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 U warning 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 U oper-
ation can be checked by traffic
controller agents. Comply with
the regulations in force in the
country where you are travelling. 

IMPORTANT After eliminating

the problem, your Lancia
Dealership will 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 ABS

system 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.

IMPORTANT A 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 too short
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 B on 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 A are housed in

front door panels.

Rear speakers (fig. 224)

The rear speakers B are 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 C are 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

250

STARTING 
THE ENGINE

IMPORTANT The car is equipped

with electronic engine immobilising
system. If the engine fails to start,
see paragraph “Lancia CODE sys-
tem”.

We recommend that

during the initial period
you do not drive to full

car performance (e.g.: excessive
accelerations, long journeys at
top speed, sharp braking etc.).

It is dangerous to let the

engine run in a garage or
other closed area. The

engine consumes oxygen and
gives off carbon oxide, a poiso-
nous gas.

The ignition device is fitted with a

safety device which obliges the dri-
ver to return the key to STOP posi-
tion before repeating the starting
procedure.

In the same way, when the engine

is running, this device prevents any
shift from MAR to AVV.

Never leave the ignition

key at MAR when the
engine is off to prevent

battery draining due to current
absorption.

DRIVING YOUR CAR

251

HOW TO START PETROL 
VERSIONS

IMPORTANT Never press the

accelerator before the engine has
started.

1) Ensure that the electric parking

brake is on (instrument panel warn-
ing light 

x on).

2)  Ensure that electrical systems

and devices, especially high absorp-
tion ones (e.g. heated rear window),
are off.

3) On versions with manual gear-

box, set the gear lever to neutral and
press the clutch pedal fully down to
avoid the starter dragging the gears.

4) On versions with electronic

automatic gearbox, ensure that the
selector is at P and keep the brake
pedal pressed.

5) Turn the ignition key to AVV

and release it as soon as the engine
starts.

6) If the engine fails to start, return

the key to STOP and repeat the pro-
cedure.

IMPORTANT If the engine does

not start at the first attempt, do not
keep turning the ignition key to
avoid damaging the catalyst.
Contact a Lancia Dealership.

HOW TO START JTD VERSIONS

1) Ensure that the electric parking

brake is on (instrument panel warn-
ing light 

x on).

2) Put the gear lever to neutral.

3) Turn the ignition key to MAR.

4) Wait until the 

m warning light

is off: the hotter the engine is, the
quicker this will happen.

When the engine is particularly hot

the warning light may come on so
quickly that it is impossible to notice
it.

5)Press the clutch pedal down to

the floor.

6) Turn the ignition key to AVV

immediately after the 

m warning

light goes out. If you wait too long,
you will lose the benefit of the work
done by the glow plugs.