2004 Alfa Romeo 156 Owner handbook (in English)

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231
REAR ROOFLIGHT BULBS(except versions with sunroof)
To replace the bulbs proceed as follows:
– Remove the rooflight (A-fig. 54) lev-
ering in the point shown by the arrow.
– Remove the bulb (B-fig. 55) pulling
outwards and releasing it from the side con-
tacts.
– Fit the new bulb making sure that it is
positioned correctly and locked between the
contacts.
– Refit the light firstly inserting the side
with the connector and then pressing on the
other side until the catch clocks into place.
CENTRE REAR ROOF LAMP(only versions with sunroof)
To remove the bulb proceed as follows:
– Remove the roof light (A-fig. 56) lev-
ering in the point shown by the arrow.
– Remove the bulb (B-fig. 57) pulling
it outwards and releasing it from the side
contacts.
– Fit the new bulb making sure that it is
positioned correctly and locked between the
contacts.
– Refit the roof light firstly inserting the
side (C-fig. 57) and then pressing on the
other side until the catch clicks into place. When refitting the
rooflight ensure that the
electrical wiring is correct-
ly arranged and does not interfere
with the edges of the light or re-
taining clips.
fig. 53
A0B0201m
fig. 52
A0B0578m
fig. 54
A0B0202m
fig. 55
A0B0203m
To refit the rooflight reverse the procedure
followed for removal.

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232
COURTESY LIGHTS(where required)
To remove the bulb proceed as follows:
– Remove the roof light (A-fig. 58) lev-
ering in the point shown by the arrow.– Remove the bulb (B-fig. 59) pulling
it outwards and releasing it from the side
contacts.
– Fit the new bulb making sure that it is
positioned correctly and locked between the
contacts.
– Refit the roof light, inserting it in the cor-
rect position firstly on one side and then
pressing on the other until the tab clicks.
GLOVEBOX LIGHTTo remove the bulb proceed as follows:
– Remove the light pushing with a screw-
driver on the tab (A-fig. 60).
– Remove the cover (B-fig. 61).
fig. 57
A0B0197m
fig. 56
A0B0196m
fig. 58
A0B0198m
fig. 60
A0B0195m
fig. 59
A0B0199m

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233
– Change the bulb (C-fig. 62) which
is pressure-fitted.
– Refit the cover (B-fig. 61).
– Re-install the light inserting it in the cor-
rect position firstly on one side and then
pushing on the other until the tab clicks.
LUGGAGE COMPARTMENT
LIGHTTo remove the bulb proceed as follows:
– Open the boot.
– Turn the fastening buttons (A-fig. 63)
until they click and lower the trim.
– Withdraw the clear plastic cover and
bulb (A-fig. 64) using a flat-bladed screw-
driver.– Replace the bulb (B-fig. 65)of the
cylindrical type pulling it outwards ensuring
that the new bulb is correctly positioned be-
tween the contacts.
– Refit the transparent cover ensuring that
the retaining tabs click into place (C-
fig. 65).
fig. 61
A0B0194m
fig. 62
A0B0193m
fig. 65
A0B0190m
fig. 64
A0B0191m
fig. 63
A0B0192m

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234
GENERALITIES The fuse is (fig. 66) a protective element
of the electrical system: basically it operates
(i.e. it gets disconnected) in case of break-
down or wrong operation on the system.
When an electrical devices ceases to func-
tion, make sure it has not fused. The fila-
ment must not be broken: if so, replace the
burnt fuse with another of the same value
(same colour).(A) - Intact fuse
(B) - Fuse with broken filament.
Extract the fuse to be replaced using the
pincers (C)situated on the fuse box.IN THE EVENT OF A BURNT FUSEfig. 66
A0B0189m
Never replace a broken
fuse with anything other
than a new fuse. Use al-
ways an intact fuse of the same
colour.Never replace a fuse with
another with a higher amp
rating, DANGER OF FIRE!
WARNING
If a main protective fuse
(MAXI-FUSE o MEGA-FUSE)
intervenes, do not fix it but contact
an Alfa Romeo Authorized Services.
WARNING
Before replacing a fuse
check that the key has
been removed from the ignition
and that all the services are
switched off and/or disengaged.
WARNING
If a fuse blows again con-
tact Alfa Romeo Autho-
rized Services.
WARNING

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235
The general protection fuses of Alfa
156are in the engine compartment, in-
side a container near the battery positive ter-
minal; to gain access to the fuses lift the two
lids (fig. 67and fig. 68).
FUSE AND RELAYS IN THE
MAIN FUSEBOX (fig. 69)The fuses for the main devices are housed
in a control unit under the dashboard, to the
left of the steering column.
To gain access to them, remove the pan-
el (A) releasing the tabs (B) in the direc-
tion of the arrow below and remove the
screw (C).A.Dipped beam light relay.
B.Relay for sunroof , seat heater, rear
window power control, seat electric adjust-
ment.
The symbols that identify the main electric
component protected by each fuse, are
shown on the label (fig. 70) on the in-
ner side of the panel (A-fig. 69).
Some spare fuses are housed at the right
of the control unit (D-fig. 69); you are ad-
vised to replenish the stock of spare fuses
when they are used.
fig. 68
A0B0579m
fig. 67
A0B0188m
fig. 69
A0B0172m
fig. 70
A0B0185m

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236
FUSES ABOVE THE MAIN
FUSEBOX
(fig. 71)
The protection fuses of certain devices are
grouped together on three containers locat-
ed above the main fusebox to which access
is gained removing the panel (A-fig. 69).
FUSES AND RELAYS ACCESSIBLE
FROM THE GLOVEBOX Some fuses and relays for services supplied
on request or only for certain specific mar-
ket versions are located on a bracket behind
the glovebox.To gain access to the fuses remove (A-
fig. 72) the pressure-fitted lid.
Access to the relays is gained by removing
the glovebox: contact Alfa Romeo Autho-
rized Services.
A. Fog light relay (where required).
B. Headlamp washer timer (where re-
quired).
FUSES AND RELAYS IN ENGINE
BAYIn the engine compartment, housed on a
bracket in front of the battery and protect-
ed by a special cover, there is a variable
number of fuses and relays depending on
the versions.
WARNINGThe arrangement of the fus-
es and relays may vary depending on the
versions and markets. In the event of a sus-
pected anomaly, contact Alfa Romeo Au-
thorized Services.fig. 73
A0B0154m
fig. 71
A0B0141m
fig. 72
A0B0184m

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237
Remove the cover (A-fig. 73) to
gain access to the following relays/fuses
(fig. 74):
A.Engine radiator cooling fan 2
ndspeed
relay (T.SPARK versions).
B.Engine radiator cooling fan 1
stspeed re-
lay.
C.Fuel pump relay
D.Electronic injection relay
E.Climate control compressor relay
F.Timing variator relay (1.6 T.SPARK on-
ly) or engine radiator fan 2
ndspeed relay
(only 2.5 V6 24V, JTD and JTD 16V Multi-
jet versions).
G.Fuel oil heater relay (only Diesel ver-
sions).For JTD 20v Multijet version refer to
fig. 75For Diesel versions, depending on the op-
tions installed, there is a second bracket fas-
tened to the engine compartment rear bulk-
head for the following fuses (fig. 76):
A.MAXI-FUSE 30A: additional passenger
compartment heater 2
ndlevel relay.
B.MAXI-FUSE 30A: additional passenger
compartment heater 1stlevel relay.
WARNINGStrictly observe the specified
fuse ampere value: in case of doubt, con-
tact Alfa Romeo Authorized Services.
fig. 74
A0B0183m
fig. 76
A0B0619m
fig. 75
A0B0618m

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238
Left front side lightRight front side lightLeft rear side lightRight rear side lightLeft dipped-beam headlamp/Xenon lamps (optional)Right dipped-beam headlamp/Xenon lamps (optional)Left main-beam headlampRight main-beam headlampCruise Control (optional)Left number plate lightRight number plate lightReversing lights/Sound systemLeft rear fog guardRight rear fog guardDirection indicators - Hazard warning lightsFog lampsCar interior and glovebox lightsHI-FI BOSE system10A
10A
10A
10A
20A
20A
10A
10A
10A
10A
10A
10A
10A
10A
10A
15A
10A
25ALIGHTS FIGURE AMPERES FUSEFUSE SUMMARY TABLE
7
6
6
7
8
4
2
1
13
7
6
13
7
6
14
16
12-13
969
69
69
69
69
69
69
69
69
69
69
69
69
69
69
71
69
71