engine Alfa Romeo 166 2007 Owner handbook (in English)

76
Engine control system
(EOBD) failure
(optional for versions/
markets where applicable)
Normally, when you turn the ignition
key to MAR, the warning light must
come on but must switch off when the
engine is running. It initially lights up to
indicate that the warning light is working.
If the warning light stays on permanent-
ly or comes on when the car is moving:
1)With a fixed light- indicates
that the supply/ ignition system is mal-
functioning that could cause high exhaust
emissions, possible loss of performance,
bad driveability and high consumptions.
In these conditions, you way continue
to drive while avoiding asking a lot from
the engine or high speeds. The prolonged
use of the car when this warning light is
on could cause damage. Contact an Alfa
Romeo Authorized Service Station as
soon as possible. The warning light turns
off if the malfunction disappears, howev-
er the system stores the warning anyhow.
U
2)Flashing light - indicates that the
catalytic converter could be damaged
(see paragraph on “EOBD System” in
this chapter).
If the warning light is on and flashing,
take your foot off the accelerator and dri-
ve at low speeds until the warning light
stops flashing; continue travelling at a
moderate speed trying to avoid driving
conditions that could cause the warning
light to flash again. Contact an Alfa
Romeo Authorized Service Station as
soon as possible.
If, when turning the ig-
nition key to MAR, the
Uwarning light does
not switch on or if, when dri-
ving, the light flashes or emits a
fixed light, contact an Alfa
Romeo Authorized Service Sta-
tion as soon as possible.
Engine control system
(versions for markets where
applicable)
1) In normal conditions, turning the ig-
nition key to MAR, the dial warning
light turns on but it should go off when
the engine has started. The initial turning
on indicates that the warning light is
working properly.
2) If the warning light stays on or turns
on when travelling, it indicates a fault in
the supply /ignition system which could
cause high exhaust emissions, possible
lack of performance, poor handling and
high consumption levels.
In these conditions, it is possible to con-
tinue driving without however demanding
heavy effort or high speeds.
Prolonged use of the car with the warn-
ing light on may cause damage. Contact
an Alfa Romeo Authorized Service as
soon as possible.
The warning light turns off if the fault
disappears, but it is still stored by the sys-
tem.
U

77
Faulty ABS anti
wheel-locking
This warning light comes on when the
system is inefficient. In this case normal
braking is ensured without though, mak-
ing use of the ABS system. Alfa Romeo
Authorized Services should however be
contacted as soon as possible.
When the ignition key is turned to
MARthe warning light comes on but
must go out after approx. 4 seconds.>
Presence of water
in the fuel oil filter
(JTD 20V Multijet versions)
When the ignition key is turned to the
MARposition the warning light should
come on and must go out after approx. 4
seconds.
The warning light switches on fixed
when driving, to indicate the presence of
water in the fuel oil filter.
In case the indicator light switches on,
even if just for a few seconds, we recom-
mend to contact an Alfa Romeo Autho-
rised Service as soon as possible in order
to purge the water from the fuel oil filter
and avoid severe damages to the injec-
tion pump and to the fuel oil supply cir-
cuit as well as the engine irregular opera-
tion.
c
Glowplugs
(JTD 20V Multijet versions)
The warning light comes on
when the ignition key is turned to MAR
position. When the glowplugs have
reached the established temperature the
warning light will go out. Start the en-
gine as soon as the warning light has
gone out.
For versions/markets where applica-
ble, the warning light flashes for approx.
30 seconds after starting the engine
meaning that there is a fault to the glow
plug warning system, in which case,
contact Alfa Romeo Authorized Services.
With a high ambient temperature the
warning light may turn on imperceptibly.
m
The car is fitted with an
electronic braking device
(EDB). If the
>andxwarning
lights turn on at the same time, this
means that there is an EBD system
fault; in this case violent braking
may be accompanied by early rear
wheel locking, with the possibility
of skidding. Drive the car ex-
tremely carefully to the nearest
Authorized Alfa Romeo workshop
to have the system checked.
WARNING

78
LLeft-hand direction
indicator (intermittent)
This warning light comes on when the
control lever is moved downwards or, to-
gether with the right-hand warning light,
when the hazard warning lights are
switched on. R
Sidelights
This warning light comes on when the
sidelights are switched on.3
Right-hand direction
indicator (intermittent)
This warning light comes on when the
control lever is moved upwards or, togeth-
er with the left-hand warning light, when
the hazard warning lights are switched
on.E
Lights failure
The warning light stays on for about
15 seconds, after the check, when a fail-
ure is detected on one of the following
lights:
– low beam headlights
– high beam headlights
– flashing (only gas discharge headlights)
– side/taillights
– direction indicators
– brake lights (stop lights)
– third stop light
– rear fog guards
– number plate lights.
The warning of a fault may mean one
or more blown bulb, a burnt fuse or cut
off connection.
Turning the key to MARthe warning
light turns on, but it should go out after
about 5 seconds.The turning on of only
the
>warning light with
the engine running normally indi-
cates a fault to the ABS system
only. In this case the braking sys-
tem is still efficient, though with-
out the aid of the anti-lock device.
Under these conditions perfor-
mance of the EBD system may be
reduced. in this case too, you are
advised to go immediately to the
nearest Authorized Alfa Romeo
workshop, driving in such a way
as to avoid sharp braking, to have
the system checked over.
WARNING

79
Main-beam headlights
This warning light comes on when the
main-beam is switched on.
Cruise Control
(on request for versions/
markets where applicable)
The warning light turns on, with the
control switch in the ONposition, when
the device starts to act on the engine.
1VDC System (Vehicle
Dynamics Control)
(on request for versions/
markets where applicable)
Turning the ignition key to MAR, the
warning light on the instrument cluster
lights up and must go out after about 4
seconds.
If the warning light does not go out or s-
tays on when travelling, contact Autho-
rised Alfa Romeo Services. Although the
absence of the VDC function does not af-
fect the car safety, it is however recom-
mended to drive at moderate speed.
Flashing of the warning light when travel-
ling means that the VDC system has cut in.
áPassenger’s Air bag
deactivated
This warning light turns on when the
passenger’s Air bag is deactivated.
Warning light Findi-
cates also warning light
¬failure. This is indicated by in-
termittent flashing, over 4 sec-
onds, of warning light F. In this
event, warning light ¬could be
not up to indicate restraint system
failures, if any. Stop the car and
contact Authorized Alfa Romeo
Services have the system checked.
WARNING

89
IMPORTANT In this condition (recir-
culation on and compressor off), remem-
ber that the windows may steam up very
quickly.
Pressing the button the climate
control automatically activates the func-
tions required to quicken demisting/de-
frosting of the windscreen and side win-
dows. Rearscreen heating and door mirror
heating are also automatically engaged
(for a determinate length of time).
Pressing the button engages
rearscreen heating and door mirror heat-
ing for a determinate length of time.Manually setting one of the climate con-
trol functions, the others continue to be
controlled automatically; in particular the
air temperature is always controlled auto-
matically to reach the required “equiva-
lent temperature” in the passenger com-
partment.
IMPORTANT When working in the
FULL AUTOcondition, the system can
automatically engage recirculation or de-
activate the compressor to cool/heat the
passenger compartment faster or
demist/defrost the windscreen and side
windows.IMPORTANT When the engine is
turned off the system memorises the cli-
mate control operating condition, which
will be automatically resumed when the
engine is started again.

91
ADDITIONAL HEATER
(Optional, for diesel versions, where
applicable)
The additional heater makes it possible
to integrate heating of the engine coolant
fluid, immediately after starting the en-
gine and when travelling, to more quickly
reach and maintain the optimum operat-
ing temperature of the engine and pas-
senger compartment heater.
The device works completely automati-
cally and it is activated only when the en-
gine is running with an outside tempera-
ture of +5°C or less and a coolant fluid
temperature below 60°C.
When the coolant fluid reaches 61°C,
the electronic control unit reduces the
power of the burner and stops the heater
when a temperature of 72°C is reached,
reactivating it automatically when the flu-
id temperature falls below 60°C. Con-
versely, if after reducing the power of the
burner, the fluid temperature begins to
fall, the control unit cuts in to restore full
power.The system comprises:
– a fuel oil burner for heating the water
and a combustion gas exhaust silencer.
– A batching pump connected to the car
reservoir pipes to supply the burner.
– An electronic control unit for control-
ling burner adjustment.
– An outside temperature sensor.IMPORTANT The heater is fitted with
a thermal limiting device which cuts off
combustion in the event of overheating
due to lack/leaks of coolant fluid.
The heater is also protected by the auto-
matic fuel cut-off switch, which shuts off
the fuel in the event of a crash of a cer-
tain size: to see how this works see the
“automatic fuel cut-off switch” para-
graph.

92
The temperature near
the heater should never
exceed 120°C (e.g. dur-
ing body painting operations in
the workshop oven). Higher tem-
perature could damage the elec-
tronic control unit components.
For maintenance and repairs con-
tact only Authorized Alfa Romeo
Services and only use original
spare parts.
The burner exhaust gas
is released in the centre
floor area: therefore never park
the car with the engine running
over inflammable surfaces, fire
hazard!
WARNING
IMPORTANT When the heater is
working with the vehicle stationery and
the engine running, standing outside the
car near the rear wheel arch a low noise
caused by normal operation of the heater
can be heard.MAINTENANCE
Have the additional heater checked at
regular intervals by Authorized Alfa
Romeo Services. This will ensure safe,
cost-effective working of the heater and
also long life.

94
REAR FOG GUARDS (fig. 98)
These are turned on, with the dipped
beam headlights or fog lights on, by
pressing button (B).
When the rear fog guards are on the led
next to the button lights up.
Turning the ignition key to STOPthe
fog guards are automatically turned off
and they do not come on the next time
the engine is started unless button (B) is
pressed. Press button (B) to turn them
off.
IMPORTANT Always use the rear fog
guards in accordance with local regula-
tions. The fog guard system complies
with EEC/ECE standardsDASHBOARD LIGHTING
ADJUSTMENT
(fig. 99)
When the outside lights are on, the
dashboard lighting is adjusted pressing
button (A).
OPENING THE FUEL FLAP
(fig. 100)
The fuel flap is released from inside the
car pressing the button (A) with the en-
gine off.
A0D0147m
fig. 99
1009PGSm
fig. 98
fig. 100
A0D0030m

109
BONNET
The lever used to open the bonnet is lo-
cated under the left end of the dash-
board.
To open:
– Pull the lever (A-fig. 141) until the
bonnet clicks open.
357PGSm
fig. 141
Do this only with the car
stationary.
WARNING
– Raise the safety lever upwards (B-
fig. 142).
– Raise the bonnet.
IMPORTANT Bonnet raising is aided
by two gas springs. Do not tamper with
these springs and always accompany the
bonnet while raising it.
A0D0033m
fig. 142
DANGER-SERIOUS IN-
JURY. When carrying out
checks or maintenance operations
in the engine compartment, take
special care not to bump the head
on the raised bonnet.
WARNING

110
To close:
– Lower the bonnet to approx. 20 cm.
from the engine bay, then let it drop. Try
lifting it to make sure that it is shut com-
pletely and not simply caught in the safe-
ty position.
If the bonnet does not close properly do
not push it down but open it again and
repeat the above procedure.HEADLIGHTS
IMPORTANTOn the inside surface of
the headlight there could appear a slight
coat of fogging; this does not show a defect,
since it is a natural occurrence due to low
temperature and to the degree of humidity
in the air; it will soon disappear as soon as
the lights are turned on. The presence of
drops inside the headlight shows water seep-
age, refer to the Alfa Romeo Dealership.
For safety reasons the
bonnet shall always be
perfectly closed when travelling.
Always check for proper bonnet
locking. If the bonnet is left inad-
vertently open, stop the car im-
mediately and close the bonnet.
WARNING