2004 Alfa Romeo 156 ABS

IN AN EMERGENCY
224
– Refit the bulb holder (A-fig. 31) by
making its notches coincide with the grooves
in the headlight unit body and turn it clock-
wise.
fig. 32
A0B0222m
fig. 31
A0B0221m
DIPPED-BEAM HEADLAMPS(fig. 32)
To replace the bulb proceed as follows:
– Remove the protective cover
– Disconnect the electrical connector (A).
– Release the bulb catch (B).
– Withdraw the bulb and replace it.– Fit the new bulb making the tabs of the
metallic part coincide with the grooves in the
headlamp parabola and hook the bulb catch
(B).
– Reconnect the electrical connector (A).
– Refit the protective cover correctly.

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225
To adjust the front fog-
lights contact Alfa Romeo
Authorized Services.
FRONT FOG LIGHTS(where required)
To replace the bulb proceed under the car
as follows:
– Disconnect the connector (A-fig. 33)
from the light unit.
– Turn the cover counter-clockwise (B-
fig. 33) and remove it.
– Withdraw the supply cable terminal
(C-fig. 34).
– Release the bulb stopper (D-fig. 34)
and remove the bulb.– Fit a new bulb making the tabs of the
metallic part coincide with the grooves in
the lamp lens and hook the bulb stopper
(D-fig. 34).
– Re-connect the supply cable terminal
(C-fig. 34).
– refit the cover (B-fig. 33) and con-
nect the connector (A-fig. 33) to the light
unit.fig. 33
A0B0215m
fig. 34
A0B0216m
The efficiency of the lights
will be decreased and may
inconvenience other road users if the
light units are not correctly adjust-
ed. If in doubt contact Alfa Romeo
Authorized Services to have them
checked and adjusted if necessary.
WARNING

IN AN EMERGENCY
226
FRONT SIDELIGHTS To replace the bulb proceed as follows:
– Remove the protective cover (A-
fig. 35).
– Remove the bulb holder (B-fig. 35)
which is snap-fitted.
– Remove the bulb (C-fig. 36) from the
bulb holder, pushing lightly and turning
counter-clockwise.
– Replace the bulb and refit the bulb hold-
er (B-fig. 36) in its housing.
– Refit the protective cover correctly
(A-fig. 35).
MAIN-BEAM HEADLAMPS (fig. 37)
To replace the bulb proceed as follows:
– Remove the protective cover.
– Release the clip holding the bulb (A).
– Withdraw the power supply (B) cable
connector.
– Remove and (C) replace the bulb.
– Reconnect the power cable (B) to the
bulb.
fig. 35
A0B0217m
fig. 36
A0B0218m
– Fit the new bulb making the tabs of the
metallic part coincide with the grooves in the
headlamp parabola.
– Lock the bulb in place with the clip (A).
– Refit the protective cover correctly.fig. 37
A0B0223m

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228
DIRECTION INDICATORS/
SIDELIGHTS AND STOP LIGHTS To replace the bulbs proceed as follows:
– Open the boot.
– Slacken the two fastening screws
(A-fig. 43) and remove the protective cov-
er (B-fig. 43).
– Withdraw the bulb holder unit (A-
fig. 44) releasing the retainer tabs (B-
fig. 44). – Refit the bulb holder unit fastening it cor-
rectly in place with the retainer tabs (B-
fig. 41).
– Refit the boot trim fastening it with the
screws removed previously.
fig. 41
A0B0212m
fig. 42
A0B0213m
fig. 43
A0B0214m
– Lower the boot lid trim in the corre-
sponding area and remove the bulb holder
unit (C-fig. 41) releasing the retainer tab
(B-fig. 41).
– Remove and replace the spherical type
bulb with bayonet attachment pushing
it gently and turning counter-clockwise
(fig. 42):
(D) reversing light bulb
(E) rear fog guard bulb.

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229
– Remove and replace the bulb concerned
(spherical with bayonet coupling) pushing
it gently and turning counter-clockwise
(fig. 45).
(C) side light/stop light bulb
(D) direction indicator bulb.
– Refit the bulb holder unit fastening it
correctly in place with the retainer tabs (B-
fig. 44).
– Refit the protective cover (B-fig. 43)
fastening with nuts (A-fig. 43).
NUMBER PLATE LIGHTSTo replace the bulbs proceed as follows:
– Remove the number plate light unit us-
ing a flat screwdriver protected by a soft
cloth on the stopper (A-fig. 46).
– Remove the unit (B-fig. 46).
– remove the bulb holder (C-fig. 47)
turning lightly and replace the bulb (D-
fig. 47) which is pressure-fitted.– Refit the bulb holder (C-fig. 47) turn-
ing gently.
– Refit the complete unit (B-fig. 46)
firstly inserting the catches and then press-
ing in correspondence with the stopper
(A-fig. 46).
fig. 44
A0B0207m
fig. 45
A0B0208m
fig. 47
A0B0210m
fig. 46
A0B0209m

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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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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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Remote controlControls lighting/Stop lightsRear control lighting from sidelightsSeat heating/Sunroof/Seat electrical adjustmentAir bag system
ABS systemAlfa Romeo CODE systemClimate control system
Engine cooling radiator fan:
First speed
– T.SPARK and JTS versions
– diesel versions
– 2.5 V6 24V versions
Second speed
– T.SPARK and JTS versions
– diesel versions– 2.5 V6 24V versionsPassenger compartment fan (petrol versions)Passenger compartment fan (diesel versions)
Electronic ignition and injection system Glow plugs and resistances on fuel oil filter (diesel versions)69
71
71
71
71
68
71
71
69
68
68
68
68
68
68
68
68
71
71
71
68
68 10A
10A
10A
30A
10A (*)
60A
10A (*)
7.5A
15A
50A
60A
40A
30A
40A
40A
40A
40A
7.5A
15A
15A
30A
70A 13
3
6
8
2 (*)
9
11 (*)
13
9
6
6
6
7
7
7
1
4
13
14
15
5
8SERVICES FUSE AMPERES FIGURE