display Lancia Thesis 2006 Owner handbook (in English)

multifunction display) warn the dri-
ver and invite him to resume speed
control.
IMPORTANTIf the Radar Cruise
Control is active and the speed of the
vehicle ahead falls below 30 km/h, a
sound signal with message “RADAR
CRUISE CONTROL NOT ACTI-
VATED” on the multifunction display
warn the driver to resume speed con-
trolTherefore, the Radar Cruise Control
does not ensure control when you are
driving in a queue; the driver must
therefore halt the car and start it off
after stopping in a queue, and he
must also switch on the speed control
function every time
IMPORTANT NOTES
CONCERNING THE RADAR
CRUISE CONTROL
When driving with the Radar Cruise
Control on, its regular operation could
be affected by certain situations.
The system operation could be in-
fluenced in the following cases:If the vehicle picked by the car fit-
ted with Radar Cruise Control leaves
the radar sensor detection range, the
system could no longer be able to de-
tect it and therefore it will speed up
the car or pick another vehicle run-
ning ahead (fig. 145).
If a vehicle enters the area between
the car fitted with Radar Cruise Con-
trol and the picked vehicle (fig. 146),
the system could not be able to con-
trol braking and it will therefore warn
the driver to take control of the car.
203
fig. 145
L0A0348b
fig. 146
L0A0349b

205
When reaching a steep cat's back
(fig. 153), the picked vehicle could
get out of the radar detection range
(thus missing "picking").The Radar Cruise Control
features proper strategies
to keep adequate comfort
level when travelling on a road
with curves, e.g.: reducing the
cruising speed if required. The
Radar Cruise Control however
cannot detect the road turn; the
driver is therefore the only re-
sponsible for adjusting the car
speed to curves, slip-road or
sharp-curves, not necessarily on
highway sections.
Whenever the picked ve-
hicle gets out of the radar
detection range, the car
will accelerate to return to the set
cruising speed.FAULT INDICATION
System anomalies are signalled by
the lighting of symbol àon the mul-
tifunction display, together with mes-
sage “RADAR CRUISE CONTROL
FAULT”. The fault indication re-
mains on even when system ring Ais
turned to OFF.
Whatever the system's fault, the
Radar Cruise Control is fully switched
off.
fig. 152
L0A0355b
fig. 153
L0A0356b

206
The driver will be warned by a spe-
cial display message when the system
is deactivated because the lens is
dirty.In this case, clean the sensor protec-
tion lens, shown in fig. 150with a wet
cloth; do not use dry, rough or hard
cloths. Should the dirty lens message
stay on after cleaning, contact a Lan-
cia Dealership.
If the Radar Cruise Con-
trol went off due to exces-
sive lens dirt, when
restarting the car a few km shall
be covered before switching the
system on again in order to let the
system check if previous condi-
tions (causing Radar Cruise Con-
trol turn off) have been removed.The sensor is built into
the front bumper: impacts
can therefore damage it.
IMPORTANTFailure to one of the
safety systems connected to the Radar
Cruise Control (ABS or ESP system)
will cause Radar Cruise Control fail-
ure indication.
The Radar Cruise Control
should be switched on
only when road and traffic
conditions allow the driver to drive
safely, that is, when the road is
straight and the surface is not slip-
pery, when the car is driven on a
freeway or motorway, and when
traffic flows smoothly. Do not use
the device when driving in urban
areas or when traffic is heavy.
fig. 154
L0A0330b

211
Obstacles placed in side areas are
detected at a distance of less than
0.6 m.
Rear sensors are automatically
switched on by removing the trailer
cable plug.FAULT INDICATIONS
The system control unit checks all
the system components every time
the ignition key is turned to MAR.
Then, the sensors and their respec-
tive electrical connections are con-
stantly monitored during system
operation.
Parking assist system faults are sig-
nalled by the lighting of symbol t
on the multifunction display, togeth-
er with message “PARKING SEN-
SOR FAULT”.
In case of fault signals, stop the
car, shut the engine off, then try to
clean the sensors, making sure that
you are not close to ultrasound-
emitting sources (e.g. truck air
brakes or pneumatic hammers). If
the cause of the operation anomaly
has been remedied, the system fully
resumes its functions and the fault
symbol on the multifunction display
goes out, together with its respective
warning message. Rear sensors are auto-
matically switched off
when the trailer’s electric
cable plug is inserted into the car
tow hitch socket.TOWING A TRAILER

227
BOOT
The boot can be opened both from
the outside and the inside of the car.
IMPORTANT Faulty closing of the
boot is signalled by the lighting of
the relevant symbol on the multi-
function display, together with mes-
sage “BOOT OPEN”With the battery flat, or
after the interruption of
one of the protection
fuses, or if you want to disconnect
a loaded battery (e.g. for a car
stop period), before opening the
luggage compartment bonnet
carefully read and comply with
the instructions contained in the
paragraph “If battery is to be dis-
connected” in the chapter “In an
emergency”.
OPENING FROM THE INSIDE
Boot tailgate is opened electrically.
It can be opened only when the igni-
tion key is at MARand the car is
stopped, or for 3 minutes after turn-
ing the key to STOPwithout open-
ing or closing a door.
To open the boot, press button A
(fig. 192), placed on the central con-
sole, as follows:
– a short pressure of the button will
release the boot lock– a prolonged pressure of the but-
ton will release the lock and open
the boot.
Boot lifting is facilitated by the
action of gas dampers.
The dampers are cali-
brated so as to ensure
correct lifting of the boot
tailgate with the weights estab-
lished by the manufacturer.
Addition of extra equipment (e.g.
spoiler, etc.) can adversely affect
operation and safety of use.
fig. 192
L0A0167b

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.

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.

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.

253
Remember that until the
engine has started, the
brake booster and power
steering systems will not work
and a greater effort will therefore
be required to press the brake
pedal and turn the steering
wheel. For cars equipped with
turbosupercharger in
particular, but generally
for any kind of cars, avoid abrupt
accelerations immediately before
turning the engine off. A quick
burst on the accelerator serves
absolutely no practical purpose,
wastes fuel and may damage seri-
ously the turbosupercharger
rotor bearings.EMERGENCY START-UP
If the Lancia CODE system fails to
recognise that code transmitted by
the ignition key (symbol Ytogeth-
er with message “VEHICLE PRO-
TECTION SYSTEM FAULT” on the
multifunction display) the emer-
gency start-up can be performed by
using the CODE card code.
For the correct procedure see chap-
ter “In an emergency”.
Before opening the lug-
gage compartment bonnet
to reload the battery or to
connect an auxiliary battery,
carefully read and comply with
the instructions contained in the
paragraph “If battery is to be dis-
connected” in the chapter “In an
emergency”. Never bump start the
engine (by pushing, tow-
ing or coasting downhill)
as this could cause fuel to flow
into the catalytic exhaust system
and damage it beyond repair.
IMPORTANTIf the engine turns
off while the car is running, the
Lancia CODE symbol Yand the
message “VEHICLE PROTECTION
SYSTEM FAULT” may appear on
the multifunction display when the
engine starts again. In this case
check that the warning light switch-
es off when turning the engine off
and on again with the car stationary.
Otherwise contact aLancia
Dealership.

313
Inspect conditions of timing belt
Replacement of timing gear drive belt (*) and Poly-V accessory
drive belt
Replace spark plugs (3.2 versions)
Replace spark plugs (2.0 TB)
Check engine control systems via diagnostic socket
Check manual gearbox oil level
Check automatic gearbox oil level
Change engine oil and oil filter (petrol versions)
Change engine oil and oil filter (2.4 JTD CAE version)(**)
Change brake fluid (or every 2 years)
Replace dust/pollen filter (or every year)
Clean engine cooling system
(*) Or every 4 years, in the event of demanding use (cold climate, use in cities, long idling, dusty areas).
Or every five years, regardless of the distance travelled.
(**) Actual interval for changing engine oil and oil filter depends on the conditions of use of the car and it is indicated by the rele-
vant message on the display (see section “Warning lights and messages”).20 40 60 80 100 120 140 160 180 thousands of kilometres
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