2007 Alfa Romeo 166 Owner handbook (in English)

88
Pressing the button turns
the compressor on/off. With the com-
pressor off, the air admitted to the pas-
senger compartment can not be cooled or
dehumidified and recirculation is switched
off automatically to avoid misting the
windows: when wanting to activate recir-
culation in the condition, press the corre-
sponding button.
Pressing the button again
with the compressor off, will restore the
operating conditions of before the com-
pressor was turned off.
Pressing the button turns
off/back on the climate control, in the
former case air is no longer admitted to
the passenger compartment which is thus
isolated from outside, in the latter, the
previous operating mode is restored.Pressing the button selects
the possible air distributions to the pas-
senger compartment:
Flow of air towards the windscreen
and front side windows
Distribution of the flow between
the windscreen /front side windows and
lower part of the passenger compartment
Flow of air to the lower part of the
passenger compartment and secondary
flow of air towards the windscreen and
front side windows
Distribution of the flow between
the upper centre, centre, side and rear
outlets and the lower part of the passen-
ger compartment
Flow of air towards the centre up-
per vent, centre and side dashboard out-
lets and rear outlets.If the system was in the FULL AUTO
mode, pressing the button
passes to the simple automatism condi-
tion: i.e. the system chooses the fan
speed and mixing to obtain the equiva-
lent temperature required, but will not
change the distribution selected manually.
Pressing the recirculation button
, the system automatically reac-
tivates the compressor if it was deactivat-
ed manually; to maintain recirculation
with the compressor of, it is necessary to
press the button to deacti-
vate the compressor.

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.

90
The dust/pollen filter should be checked
over at least once a year by Alfa Romeo
Authorized Services, preferably at the be-
ginning of summer.
If the vehicle is habitually driven in pol-
luted areas or on dusty roads the system
should be checked and if necessary
changed more often.If the filter is not re-
placed the efficiency of
the climate control sys-
tem may be seriously compro-
mised.ACTIVATED CARBON
DUST/POLLEN AIR FILTER
The filter has the specific capability to
combine the mechanical air filtering func-
tion with an electrostatic effect so that
the outside air admitted to the passenger
compartment is purified and free of parti-
cles such as dust, pollen etc.
In addition to the above-mentioned
function there is also an effective reduc-
tion of the concentration of pollutants
owing to a layer of activated carbons on
the lower surface of the filter.
The filtering action takes place when air
is admitted from outside (recirculation
off) and when the air is recirculated (re-
circulation on).

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.

93
CONTROLS
OPENING THE LUGGAGE
COMPARTMENT
(fig. 95)
To open the luggage compartment from
inside the car press the button (A) (with
the car stationary) inside the glovebox.
Because of its position, the control can-
not be operated when the glovebox is
key-locked.
IMPORTANT The corresponding
warning light on the check panel lights up
if the luggage compartment is not shut
properly.
HAZARD WARNING LIGHTS
(fig. 96)
These are switched on by pressing but-
ton (A) regardless of the position of the
ignition key.
When the hazard warning lights are
switched on the switch itself begins to
flash together with the direction indicator
on the instrument panel. This function is
switched off by pressing the button again.
IMPORTANT Use the hazard lights in
compliance with local regulations.
FRONT FOGLIGHTS (fig. 97)
These come on when the button (A) is
pressed and when the external lights are
already on.
When the foglights are on the led next
to the button lights up.
Press the button again to switch the
front foglights off.
IMPORTANT The front foglights
should be used in compliance with the lo-
cal traffic laws. The front foglights system
meets EEC/ECE regulations.
534PGSm
fig. 96 fig. 95
574PGSm
fig. 97
1008PGSm

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

95
GEARSHIFT LEVER (fig. 101)
When changing gear always fully de-
press the clutch pedal. Before engaging
reverse gear (R) wait for the car to be
stationary.
To engage reverse gear (R) it is neces-
sary to wait for the car to be stationary,
then raise the ring under the grip (A)
(with the fingers of the same hand hold-
ing the lever). After engaging reverse
gear, release the ring. It is not necessary
to raise the ring on the lever when shift-
ing from reverse to another gear.
fig. 101
A0D0031m
HAND BRAKE (fig. 102)
The hand brake is located between the
two front seats.
To operate the brake when the vehicle
is stationary pull the lever upwards until
the required braking action is obtained.
When the ignition key is in the MAR
position the
xwarning light will come
on on the instrument panel.To release the hand brake:
– Slightly lift the lever (A) and press
the button (B).
– holding the button down lower the
lever: the
xwarning light on the instru-
ment panel will go out.
To prevent the car from moving acciden-
tally, keep the brake pedal pressed when
engaging the handbrake.
The wheels should be
locked after a few clicks
of the hand brake lever.
if this does not occur contact Alfa
Romeo Authorized services to
have the hand brake adjusted.
fig. 102
372PGSm