2006 Alfa Romeo 166 ECU

25
IMPORTANTIf the car is to remain i-
nactive for a prolonged length of time
(over three weeks) and security condi-
tions permitting, it is advisable to operate
central locking turning the key in the door
lock to avoid engaging the alarm and
draining the battery.VOLUMETRIC PROTECTION
To guarantee correct operation, all the
windows and the sunroof (optional for
versions/markets where applicable)
should be closed. This function can be ex-
cluded (for example when leaving ani-
mals on-board the vehicle) by performing
the following operations in quick succes-
sion: when the ignition key is at the
MARposition, move the key to the
STOPposition and then return the key
to the MARand then once again to the
STOPposition. Remove the ignition key.
The led in the vehicle will come on for
about 2 seconds to confirm that the func-
tion has been excluded.
To restore volumetric protection move
the ignition key to the MARposition
and hold it in this position for more than
30 seconds.
If requiring to activate an electric control
operated by the ignition key at MAR
(e.g. electric windows) with the volumet-
ric protection deactivated, turn the igni-
tion key to MAR, operate the control
and return the key to STOPwithin a
maximum time of 30 seconds. This way
volumetric protection is not restored.
CUTTING OUT OPERATION OF
THE SIREN
(optional for versions/markets where
applicable)
When requiring to dispense with the
siren acoustic signalling in the alarm con-
dition, simply keep the remote control
button (A-fig. 13) pressed for 4 sec-
onds when engaging the system.
This condition is shown by a series of 5
beeps in quick succession after the nor-
mal acoustic/visual signals when the sys-
tem is operated.
The next time the system is activated,
normal operation of the siren is restored
automatically.
fig. 13
1014PGSm

108
SECURING THE LOAD
The loads carried may be blocked with
straps hooked to the special rings in the
boot corners (fig. 140). The rings also
serve to secure the luggage retaining net
(available on request c/o Alfa Romeo Au-
thorized Services).
fig. 140
678PGSm
Do not load the luggage
compartment above the
permitted maximum (see “Techni-
cal specifications”). Also make sure
that the objects contained in the
boot are well secured to prevent
them from being thrown forward
causing harm to the passengers in
the event of sharp braking.
WARNING
A heavy load that has not
been secured may cause
serious harm to passengers in the
event of an accident.
WARNINGIMPORTANT Travelling at night with
a load in the boot it is necessary to adjust
the height of the low beam headlights
(see next paragraph “Headlights” in this
chapter). For correct use of the aiming
device, also make sure that the load does
not exceed the values given in the same
paragraph.

163
– Work the jack and raise the car, until
the wheel is a few centimetres above
ground.
– Completely unscrew the fastening
bolts (A-fig. 16) and remove the
wheel.
– Make sure that the wheel to be in-
stalled is clean and free of impurities on
the hub contact surface which could cause
slackening of the fastening bolts later.
– Install the wheel making the hub pin
(A-fig. 10) coincide with one of the
holes (B-fig. 11) of the wheel.
– Tighten the five fastening bolts (A-
fig. 17).
For cars with alloy rims it is easier to in-
sert the wheel bolts using the specific
centering pin.– Screw the centering pin (A-fig. 18)
in one of the fastening bolt holes.
– Push the wheel on the pin and fasten
it with four bolts.
– Remove the centering pin (A-fig. 19)
and screw the last fastening bolt.– Lower the car and remove the jack
(fig. 20).
– Completely tighten the bolts in the se-
quence shown (fig. 21).
– If present, fit the hub cap so that the
valve can come out through the tapered
hole. Press the edges of the hub cap s-
tarting from near the valve hole (A-
fig. 22) and proceeding round until it is
securely attached.
IMPORTANT Incorrect fitting might
cause the wheel cap to come off when
the car is on the move.
After refitting a wheel:
– Stow the spare wheel in the space
provided in the luggage compartment and
fasten it with the ring nut (A-fig. 2).
A0D0139m
fig. 16
A0D0138m
fig. 15
A0D0136m
fig. 13
A0D0137m
fig. 14

169
High beam headlamp signaller
To replace the bulb (Type D – H1,
55W):
– Remove the engine compartment cov-
er after turning the fastening pins.
– Turn counter-clockwise and remove
the direction indicator bulb holder (A-
fig. 29), without disconnecting the con-
nector to widen the working space.
– Remove the rubber cap (B) by
pulling the tab (C).– Disconnect the snap-fitted connector
(D- fig. 30) and release clip (E).
– Remove the bulb (F- fig. 31).– Fit new bulb in the headlight reflector
making the notches coincide with the cor-
responding grooves.
– Lock the bulb with the clip.
– Fit the connector to the bulb.
– Fit the rubber cap.
– Fit the direction indicator bulb holder
and lock it by turning it clockwise.
– Refit the engine compartment cover
and secure it by turning the fastening
pins.
A0D0059m
fig. 29
A0D0060m
fig. 30
A0D0061m
fig. 31

170
Front sidelights
To replace the bulb (Type B – H6W,
6W):
– Remove the engine compartment cov-
er after turning the fastening pins.
– Turn counter-clockwise and remove
the direction indicator bulb holder (A-
fig. 32) without disconnecting the con-
nector to widen the working space.
– Remove the rubber cap (B) by
pulling the tab (C).– Press the two retaining tabs and re-
move the bulb holder (D- fig. 33).
– Remove the bulb (E- fig. 34) from
the bulb holder, pushing it slightly and
turning it counter-clockwise.– Fit the new bulb into the bulb holder,
pushing it slightly and turning it clock-
wise.
– Push the bulb holder down in its seat.
– Fit the rubber cap.
– Fit the direction indicator bulb holder
and lock it by turning it clockwise.
– Refit the engine compartment cover
and secure it by turning the fastening
pins.
A0D0059m
fig. 32
A0D0062m
fig. 33
A0D0063m
fig. 34

171
Front direction indicators
To replace the bulb (Type B – PY21W,
21W, coloured):
– Remove the engine compartment cov-
er after turning the fastening pins.
– Turn counter-clockwise and remove
the bulb holder (A- fig. 35) without
disconnecting the connector.
– Remove the bulb (B- fig. 36) from
the bulb holder, pushing it slightly and
turning it counter-clockwise.– Fit the new bulb into the bulb holder,
pushing it slightly and turning it clock-
wise.
– Fit the bulb holder and lock it by turn-
ing it clockwise.
– Refit the engine compartment cover
and secure it by turning the fastening
pins.FRONT LIGHT UNITS –
HALOGEN BULB HEADLIGHTS
(optional for versions/markets where
applicable)
The front light units with halogen bulb
headlights contain low beam, high beam,
sidelight and direction indicator bulbs.
The bulbs are arranged inside the light
unit as follows (fig. 37-38):
A.Direction indicator
B.High beam headlight and sidelight
C.Low beam headlight.
A0D0070m
fig. 35
A0D0071m
fig. 36
A0D0054m
fig. 37

172
Low beam headlights
To replace the bulb (Type D – H7,
55W):
– Remove the engine compartment cov-
er after turning the fastening pins.
– Remove the rubber cap (A- fig.
39) by pulling the tab (B).
– Disconnect the snap-fitted connector
(C- fig. 40).
–- Release the clip (D).
– Remove the bulb (E- fig. 41).– Fit the bulb in the headlight reflector
making the notch coincide with the corre-
sponding groove.
– Lock the bulb with the clip.
– Fit the connector to the new bulb.
– Fit the rubber cap.– Refit the engine compartment cover
and secure it by turning the fastening
pins.
A0D0036m
fig. 38
A0D0072m
fig. 39
A0D0074m
fig. 41
A0D0073m
fig. 40

173
High beam headlights
To replace the bulb (Type D – H7,
55W):
– Remove the engine compartment cov-
er after turning the fastening pins.
– Turn counter-clockwise and remove
the direction indicator bulb holder (A-
fig. 42) without disconnecting the con-
nector to widen the working space.
– Remove the rubber cap (B) by
pulling the tab (C).– Disconnect the snap-fitted connector
(D- fig. 43) and release the clip (E).
– Remove the bulb (F- fig. 44).– Fit the new bulb in the headlight re-
flector making the notches coincide with
the corresponding grooves.
– Lock the bulb with the clip.
– Fit the connector to the bulb.
– Fit the rubber cap.
– Fit the direction indicator bulb holder
and lock it by turning it clockwise.
– Refit the engine compartment cover
and secure it by turning the fastening
pins.
A0D0075m
fig. 42
A0D0076m
fig. 43
A0D0077m
fig. 44