2006 Alfa Romeo 159 climate control

65
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LIGHTS AND
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ALIGNING SET
TEMPERATURES
(MONO function)
Pressing button MONO automatically
aligns the temperature and air distribu-
tion on front and rear passenger area
with that on the driver area.
When this function is on, the circular led
around the button will turn on.
Turn knob Bto set the same tempera-
ture between the two/three zones.
Separate operation of set temperatures
(front and rear passengers) is restored
automatically by turning knob EorPor
by pressing again button MONO, the cir-
cular led around the button will turn off.
IMPORTANTOperating the rear con-
trols (Three-zone configuration) will turn
off the MONO function and the relevant
circular led around the MONO button.
CLIMATE CONTROL
COMPRESSOR ON/OFF
Press button √to turn the compressor
on: when climate control compressor is
on the circular led around the button will
turn on. Compressor will stay on also af-
ter turning the engine off.
To turn the compressor off press again
button
√.
HEATED REAR WINDOW
AND DOOR MIRROR
DEMISTING/DEFROSTING
Press button (to activate the demist-
ing/defrosting function: when this func-
tion is on, the circular led around the but-
ton will turn on.
On certain versions, turning this function
on will also activate windscreen de-
frosting in the windscreen wiper area.
This function is timed and switches off
automatically after few minutes, or by
pressing again the button or by turning
the engine off. It will not be switched
on automatically when restarting the en-
gine.
IMPORTANT Do not apply stickers on
the inside of the rear window over the
heating filaments to avoid damage that
might cause it to stop working properly.

67
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N˙Splitting of the air flow between
Oall vents.
Rear seat Three-zone
configuration controls
Pressing buttons
N/O(rear controls)
you can manually choose one of the 3
possible modes for air distribution to the
rear side of passenger's compartment
NAir flow to the vents on the central
console (passengers’ body).
OAir flow towards the rear lower part
of the passenger compartment. This
type of distribution allows heating of the
passenger compartment in the shortest
time by proper setting of the tempera-
ture.
NSplitting of the air flow between
Othe vents to the lower part of the
passenger compartment (warmest air)
and the rear vents (coolest air).
To restore automatic air distribution con-
trol after a manual selection, press but-
tons AUTO (front controls) or AUTO (rear
controls).
AIR RECIRCULATION AND
AQS FUNCTION (AIR
QUALITY SYSTEM)
ON/OFF (where provided)
Inside air recirculation is controlled ac-
cording to the following operating log-
ics:
❒automatic control, indicated by but-
ton led “A”;
❒forced switching on (inside air recir-
culation always on), indicated by the
turning on of the circular led around
the button;
❒forced switching off (air recirculation
always off with air inlet from the out-
side), indicated by the turning off of
the circular led around the button.
With A.Q.S. (air quality sensor - where
provided), the operating logics becomes
sequential by pressing button
v.IMPORTANTThe inside air recircula-
tion system makes it possible to reach
the required heating or cooling condi-
tions faster. It is however inadvisable to
use it on rainy/cold days as it would
considerably increase the possibility of
the windows misting inside, especially
if the climate control compressor is off.
It is advisable to turn on the inside air
recirculation system in queues or tunnels
to avoid admitting polluted air from out-
side. The prolonged use of this function
should however be avoided, especially
with several persons on board, to avoid
the possibility of the windows misting
inside and to guarantee the required
fresh air inlet.

68
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POLLEN FILTER/ ACTIVATED
CARBON POLLEN FILTER
According to versions, the car can be fit-
ted with pollen filter or activated carbon
pollen filter (where provided). The filter
has the specific capability of admitting to
the passenger compartment purified air,
free from particles such as dust, pollen,
etc. The filtering action takes place un-
der all air inlet conditions and it is clear-
ly most effective with the windows shut.
Have the conditions of the filter checked
by Alfa Romeo Authorized Services at
least once a year, preferably at the on-
set of summer. If the car is used main-
ly in polluted or dusty areas it should be
checked and if necessary replaced at
shorter intervals than specified in the
Service Schedule (see section “Car
Maintenance”). AQS function (Air Quality
System) (where provided)
The AQS function turns on automatical-
ly air recirculation when it detects the
presence of polluted air (e.g. in queues
and tunnels).
IMPORTANTWith AQS function on,
after a preset time with recirculation on,
the compressor will enable outside air
inlet (for about 1 minute) to change air
inside the passenger compartment, re-
gardless of outside air pollution level.
IMPORTANTThe AQS function is dis-
abled when the outside temperature is
cold to prevent window misting up. To
reactivate this function, press button
v. Led “A” on button vwill
turn on to indicate that the function is
on.
Failure to replace the fil-
ter may considerably re-
duce the effectiveness of
the climate control system up to
blocking the air flow from the
outlets and vents.
In certain weather con-
ditions (e.g. outside
temperature around
0°C) and with automatic air re-
circulation control on, mist may
form on the windows. In this
case press button vto
switch off recirculation and if
necessary press button + to in-
crease the flow of air to the
windscreen.
With the outside tem-
perature below -1°C the
climate control compres-
sor is unable to work. It is
therefore inadvisable to use the
inside air recirculation function
with low outside temperature
as windows may mist over
quickly.

69
SAFETY
DEVICES
WARNING
LIGHTS AND
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EMERGENCY
CAR
MAINTENANCE
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OF THE CAR
DASHBOARD
AND
CONTROLS
SWITCHING THE CLIMATE
CONTROL SYSTEM OFF
Keep pressed button “–“ until the dis-
play shows OFF.
With climate control system off:
❒the system stores performed opera-
tions;
❒the display is off (OFF wording is dis-
played);
❒air recirculation is active (button led
on);
❒compressor is active;
❒ventilation is off.
To turn the climate control system on
again press button AUTO or any other
button (excluding
(,vand
MONO). Turning the climate control sys-
tem on again, air recirculation will be
again controlled automatically.Pressing button OFF on the rear control
will display the wording OFF on the rear
display and will stop air flow to rear
seats.
ADDITIONAL
HEATER (diesel
versions only)
(where provided)
The car is fitted with an additional heater
that supports the engine during cold or
winter weather to quickly reach a com-
fortable temperature in the passenger
compartment.
The additional heater works with the en-
gine running when the outside temper-
ature is below 20°C and the engine has
not yet reached normal operating tem-
perature. After connecting/dis-
connecting the battery,
wait for 3 minutes at
least before fitting the electronic
key into the ignition device in
order to allow the climate con-
trol system control unit to reset
the positions of the electric ac-
tuators that adjust air temper-
ature and distribution.

157
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LIGHTS AND
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CONTROLS
CORRECT USE
OF THE CAR
Climate control
The air conditioner is an additional load
which greatly affects the engine leading
to higher consumption. When the tem-
perature outside the car permits it, use
the air vents where possible.
Spoilers
The use of aerodynamic optional extras
which are not certified for the specific
use on the vehicle, may reduce the aero-
dynamic penetration of the vehicle and
increase consumption. Unnecessary loads
Do not travel with too much luggage
stowed in the boot. The weight of the
car (especially when driving in town)
and its trim greatly affects consumption
and stability.
Roof rack/ski rack
Remove the roof rack or the ski rack
from the roof as soon as they are no
longer used. These accessories lower air
penetration and adversely affect con-
sumption levels. When needing to car-
ry particularly voluminous objects, prefer-
ably use a trailer.
Electric devices
Use electric devices only for the amount
of time needed. Rear heated window,
additional headlights, windscreen wipers
and heater fan need a considerable
amount of energy, therefore increasing
the requirement of current increases fu-
el consumption (up to +25% in the ur-
ban cycle).CONTAINING
RUNNING COSTS
Here are some suggestions which may
help you to keep the running costs of
your car down and lower the amount of
toxic emissions released into the at-
mosphere.
GENERAL CONSIDERATIONS
Car maintenance
Have checks and adjustments carried out
in accordance with the “Service sched-
ule”.
Tyres
Check the pressure of the tyres routine-
ly at an interval of no more than 4
weeks: if the pressure is too low, con-
sumption levels increase as resistance
to rolling is higher.

215
SAFETY
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LIGHTS AND
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CAR
MAINTENANCE
TECHNICAL
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CONTROLS
IN AN
EMERGENCY
USERS FUSE AMPERE FIGURE
Climate control system fan F02 (MAXI-FUSE) 40 60
Electric steering lock F03 (MAXI-FUSE) 20 60
Brake branch point (pump) F04 (MAXI-FUSE) 40 60
Brake branch point (solenoid valve) F05 (MAXI-FUSE) 40 60
Radiator fan (low speed) F06 (MAXI-FUSE) 40 60
Radiator fan (high speed) F07 (MAXI-FUSE) 50 60
Headlight washer F09 20 60
Horns F10 15 60
Electronic injection sundry secondary services F11 15 60
+ INT for electronic injection system F16 7.5 60
Electronic injection primary services F17 10 60
Engine control branch point F18 15 60
Climate control system compressor F19 7.5 60
Rear window heating F20 20 60
Fuel pump supply F21 20 60
Ignition coils/injectors (petrol versions) F22 15 60
Electronic injection primary services diesel versions) F22 20 60
Sound system/radionavigation system power F23 15 60
Body Computer branch point/Headlight washer relay coil F31 7.5 56
Driver’s door branch point/passenger’s door branch point/
ignition device F32 15 56
Rear left power window F33 20 56
Rear right power window F34 20 56

216
SAFETY
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LIGHTS AND
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CAR
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TECHNICAL
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AND
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IN AN
EMERGENCY
USERS FUSE AMPERE FIGURE
Water in diesel fuel filter sensor/flow meter F35 7.5 56
Brake light switch/central console control panel F35 7.5 56
Cruise Control F35 7.5 56
AQS sensor F35 7.5 56
Boot branch point/front door branch point power F36 20 56
Instrument panel branch point F37 10 56
Front headlight control unit/Power to control unit for gas-discharge
headights (Bixenon) (where provided) F37 10 56
Boot locking/unlocking gearmotor F38 15 56
EOBD system diagnostic socket F39 10 56
T.P.M.S. control unit F39 10 56
Mobile phone presetting F39 10 56
Alarm system control unit (where provided) F39 10 56
Climate control system F39 10 56
Heated rear window F40 30 56
Windscreen washer/rear window washer nozzle demister F41 7.5 56
Heated mirror demister F41 7.5 56
Brake branch point power (ABS/VDC) –
Steering angle branch point – Yawing sensor F42 7.5 56
Windscreen wiper/washer F43 30 56

226
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CAR
MAINTENANCE
Thousands of km
Check and adjust tappet clearance
(1.9 JTDM8v version)
Check exhaust emissions (petrol versions)
Check exhaust emissions/smoke (diesel versions)
Check antievaporation system (petrol versions)
Check engine control system operation
(through diagnosis socket)
Replace accessory drive belt/s
Replace timing belt (diesel versions) (*)
Change spark plugs (petrol versions)
Replace diesel fuel filter (diesel versions)
Change air cleaner cartridge (petrol versions)
Change air cleaner cartridge (diesel versions)
Change front transmission gear oil (3.2 JTS versions)
Change engine oil and oil filter (petrol versions)
(or every 24 months)
Change engine oil and oil filter (diesel versions)(**)
(or every 24 months)
Change brake fluid (or every 24 months)
Change pollen filter (or every 24 months)
(*) Regardless of the km covered, the timing belt shall be replaced every 4 years for particularly demanding use (cold climates, driving
in the city, idling for a long time) or in any case every 5 years.
(**) Engine oil and oil filter shall actually be changed according to the conditions of use of the car and it is indicated by the relevant
warning light or message (where provided) on the instrument panel (see section “Warning lights and messages”).
30 60 90 120 150 180
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