bulb Lancia Thesis 2008 Owner handbook (in English)

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

281
You should, where pos-
sible, have your bulbs
changed at a Lancia
Dealership. The correct operation
and slant of headlights is essen-
tial for safe driving and compli-
ance with legal requirements.IF A BULB BURNS
OUT
Modifications or repairs
to the electrical system
carried out incorrectly
and without bearing the features
of the system in mind can cause
malfunctions with the risk of fire.
The bulbs of (bi-Xeno)
gas-discharge headlights
must be replaced by a
Lancia Dealership.
Only touch the metal
part when handling halo-
gen bulbs. You will
reduce the light intensity and
possibly compromise bulb life by
touching the glass bulb. If you
touch the bulb accidentally, rub
it with a cloth moistened with
alcohol and leave it to dry.
Halogen bulbs contain
pressurised gas which, if
broken, may cause small
fragments of glass to be projected
outwards.
Due to high voltage, the
bulb of bi-Xeno gas-dis-
charge headlights must
only be replaced by experts: dan-
ger of death! Contact the Lancia
Dealership.

282
GENERAL INSTRUCTIONS
– When a light is not working,
check that it has not fused before
changing the bulb.
– For the location of the fuses, refer
to “If a fuse blows” in this chapter.
– Before replacing a bulb that does
not work, check that the contacts are
not oxidised.
– Burnt-out bulbs must be replaced
with ones of the same type and
power.
– Always check the slant of the
headlight beam after changing a
bulb for safety reasons.TYPES OF BULBS
Different types of bulbs are
installed in the car (fig. 22):
A - All glass bulbs
Snapped into position. Pull to
remove.
B - Bayonet connection bulbs
Remove from the bulb holder by
pressing the bulb and rotating it
anticlockwise.
C - Cylindrical bulbs
Remove by pulling away from ter-
minals.
D - E Halogen bulbs
To remove the bulb, release the
clip holding the bulb in place.
L0A0105b
fig. 22

283
Bulb
Main beam headlights/Dipped beam headlights
Additional main beam headlights
Front sidelights
Front direction indicators
Side direction indicators
Rear direction indicators
Front fog lights
Taillights
Brake lights
Third brake light
Reversing light
Rear fog lights
Number plate light
Front ceiling light
Courtesy lights
Rear ceiling light
Courtesy mirrors
Glove compartment
Boot
Doors
Power
35W
55W
6W
21W
5W
–
55W
–
–
–
21W
21W
5W
10W
5W
5W
5W
5W
10W
5W
Type
Gas-discharge
H7
H6W
H21W
WY5W
LED
H3
LED
LED
LED
P21W
P21W
C5W
Halogen
Halogen
Halogen
C5W
W5W
Halogen
W5W
Ref. figure 22
–
E
B
B
A
–
E
–
–
–
B
B
C
A
A
A
C
A
A
A

284
IF AN EXTERIOR
BULB BURNS OUT
FRONT LIGHT CLUSTER
The front light cluster includes
main beam headlights/dipped beam
headlights, additional main beam
headlights, direction indicators and
sidelights.Light layout is the following
(fig. 23):
A– Main beam headlight/dipped
beam headlight (bi-Xeno bulb)
B– Sidelight
C– Additional main beam head-
light
D– Direction indicator.Any operation on the
front light cluster must be
made with the stalk at 0
(lights off) and ignition key
removed for at least 15 minutes
(to let bulb cooling and con-
densers discharging): risk of elec-
trical discharge!
fig. 23
L0A0106b
To replace front head-
light bulbs, front light
clusters shall be removed.
It is therefore recommended to
the bulbs replaced at Lancia
Dealership.Due to high voltage, the
bulb of bi-Xeno gas-dis-
charge headlights must
only be replaced by experts: dan-
ger of death! Contact the Lancia
Dealership.

285
SIDE DIRECTION INDICATORS
(fig. 25)
To replace the bulb:
1) Push the lens in direction 1,
press tab Aand remove the cluster
from the back 2.
2) Turn the direction indicator
anticlockwise and remove the bulb
holderB.
3) Remove bulb Cand replace it.
4) Refit the direction indicator in
the bulb holder turning it clockwise.
5) Refit the direction indicator on
the fender first inserting the front
part and then pressing the rear part
until it fits. If the front fog lights are
not adjusted properly,
they could annoy other
drivers. Contact a Lancia
Dealership for a check and any
required adjustments.
fig. 24
L0A0154b
fig. 25
L0A0121b
FRONT FOG LIGHTS (where
provided) (fig. 24)
To replace front fog lights it is nec-
essary to operate under the vehicle,
after removing the protective cover
under the engine. For this reason, it
is suggested to have the bulbs
replaced at a Lancia Dealership.

286
REAR LIGHT CLUSTER (fig. 26)
Taillights, direction indicators and
brake lights consists of leds built-
into the rear light cluster.
If the lights break down partially
or completely go to a Lancia
Dealership.REVERSING LIGHT AND REAR
FOG LIGHTS
Reversing lights and rear fog lights
are housed in the tailgate.
To replace the bulbs:
1) Open the tailgate and lift the
coveringA(fig. 27) near the bulb to
be replaced.
2) Loosen the screw Band remove
the bulb holder C.3) Remove the clipped in glass
bulbs (fig. 28).
D- B type, 12V-P21W bulb for
reversing light.
E- B type, 12V-P21W bulb for
rear fog light.
4) After replacing the bulbs, refit
the bulb holder and fasten it with
the screw.
5) Lower the tailgate cover.
fig. 26
L0A0123b
fig. 27
L0A0124b
fig. 28
L0A0125b

287
NUMBER PLATE LIGHTS
(fig. 29)
To replace the bulb:
1) Remove the lens using a screw-
driver as a lever in point A.
2) Remove the bulb Bby releasing
the side contacts and then replace it.
3) Refit the lens by inserting it first
from side Cand then by pressing it
on the other side until it fits.ADDITIONAL BRAKE LIGHT
(THIRD BRAKE LIGHT) (fig. 30)
If the third brake light breaks
down partially or completely go to a
Lancia Dealership.IF AN INTERIOR
BULB BURNS OUT
FRONT CEILING LIGHT
To replace the bulbs:
1) Remove the clipped in caps A
andB(fig. 31) by levering with a
screwdriver on the external part.
fig. 29
L0A0126b
fig. 30
L0A0287b
fig. 31
L0A0129b

288
2) Loosen the screws C(fig. 32)
and remove the ceiling light.
3) To remove bulb holders turn
them anticlockwise (fig. 33).
D- Central ceiling light bulb.
E- Courtesy light bulbs.4) Remove the clipped in glass
bulbs from the bulb holder and
replace them.
5) Insert the bulb holders and turn
them clockwise.
6) Refit the ceiling light and secure
it with the screws.
7) Refit the clipped in caps.
IMPORTANTWhen refitting the
ceiling light check that the electrical
wires are positioned correctly.REAR CEILING LIGHT
To replace the bulbs:
1) Remove the ceiling light by lev-
ering with a screwdriver on the front
edge (fig. 34).
2) To remove bulb holders turn
them anticlockwise (fig. 35).
fig. 32
L0A0130b
fig. 33
L0A0131b
fig. 34
L0A0288b

289
A- Central ceiling light bulb.
B- Courtesy light bulbs.
3) Remove clipped in glass bulbs
from the bulb holders and replace
them.
4) Insert the bulb holders and turn
them clockwise.
5) Refit the ceiling light by insert-
ing first the rear part and then
pressing the front part until it fits.
IMPORTANTWhen refitting the
ceiling light check that the electrical
wires are positioned correctly.GLOVE COMPARTMENT LIGHT
To replace the bulb:
1) Remove the lens by using a
screwdriver as a lever on clip A
(fig. 36).2) Press the two sides of shieldB
(fig. 37) at the fastening clips and
turn it.
3) Replace the clipped in bulbC.
4) Close the shield Bby clipping it
into its housing.
5) Refit the lens by inserting side D
(fig. 36) first and then pressing the
other side to engage clip A.
fig. 37
L0A0135b
fig. 36
L0A0134b
fig. 35
L0A0133b