2005 Alfa Romeo 159 sensor

Reactivating the S.B.R.
(Seat Belt Reminder) buzzer
(Beep Seatb.) (where provided)
This function is displayed only after the
system has been deactivated by Alfa
Romeo Authorized Services.
Exit Menu (Quit setup)
Selecting this option will bring back to
standard screen.
REV COUNTER/DASHBOARD
BUTTON LIGHT
(NIGHT PANEL)
This function enables to turn on/off
(ON/OFF) the lights of the rev counter
and dashboard buttons. This function can
be activated (only with electronic key fit-
ted into ignition device, external lights on,
and speedometer built-in sensor in poor
outside light setting), by pressing for long
button–. When this function is on, the
display will show a warning message.
Once on, the NIGHT PANELfunction
can be deactivated as follows:
❒by long press on button +(also with
external lights off);
❒removing the electronic key from the
ignition device.
When function is off the display will show
a warning message.
Messages stay on the display for a few
seconds, then they will go off. To stop
displaying before time, briefly press but-
tonMENU. Scheduled Servicing (Service)
Through this function it is possible to dis-
play information connected to proper car
servicing.
Proceed as follows:
❒briefly press button MENU: service
in km or mi, according to previous
setting, will be displayed (see para-
graph “Units”);
❒briefly press buttonMENUto go
back to the menu screen or press the
button for long to go back to the stan-
dard screen.
IMPORTANTThe Service schedule in-
cludes car maintenance every 30,000 km
(or 18,000 mi); this is shown automat-
ically, with the electronic key into the ig-
nition device starting from 2,000 km (or
1,240 mi) from this deadline and it will
be displayed in km or miles according to
the unit set. When a scheduled service in-
terval (“coupon”) is near to come, fitting
the electronic key into the ignition device
will display a message followed by the
number of km/mi to go before car ser-
vicing. Contact Alfa Romeo Authorized Ser-
vices to carry out any service operation
provided by the Service schedule or by the
Annual inspection plan, and to reset the
display.
40
SAFETY
DEVICES
WARNING LIGHTS
AND MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND
CONTROLS
CORRECT USE
OF THE CAR

58
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
To guarantee perfect
and regular sensor op-
eration do not apply
stickers in the “monitoring”
area between sensor and wind-
screen. Keep windscreen and
sensor clean and avoid to accu-
mulate dust or other sub-
stances.
AUTOMATIC TWO-/
THREE-ZONE
CLIMATE CONTROL
SYSTEM
(where provided)
DESCRIPTION
The car is fitted with a two-/three-zone
climate control system which makes it
possible to separately adjust the air tem-
perature in the two/three passenger’s
compartment areas to reach the required
comfort.
For top quality temperature control in
the two/three areas of the passenger's
compartment, the system is fitted with
external temperature sensor, passen-
ger's compartment temperature sensor
and two-side sun radiation sensor.
The climate control system automatically
controls and adjusts the following pa-
rameters and functions:
❒air temperature at driver/passengers
vents;
❒fan speed;
❒air distribution at driver/passenger
vents;
❒compressor activation;
❒air recirculation.
The following parameters and functions
can be set or changed manually:
❒required temperature;
❒fan speed;
❒air distribution on seven levels ;
❒compressor on/off;
❒window demisting/defrosting;
❒air recirculation;
❒one-zone function.
The system is fitted with AQS (Air Qual-
ity System) sensor (where provided),
that turns on air recirculation automati-
cally when it detects the presence of out-
side polluted air (for example in queues
and tunnels).
Where provided, the system also features
a demisting sensorA-fig. 48 ( set be-
hind the driving mirror), capable of mon-
itoring a preset area of the internal wind-
screen pane and to cut in automatically
to prevent or to reduce misting up through
a suitable strategy.
A0E0091mfig. 48
This sensor can be disabled by any man-
ual control and it is activated each time
the engine is started and in any case
when the user presses one of the AUTO
buttons.

59
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
I- Button for activating the MONO function (alignment of set temperatures), cor-
responding to driver’s one;
L- air recirculation on/off button;
M- climate control compressor on/off button;
N- passenger’s compartment temperature sensor TWO-ZONE controls fig. 49
A- air distribution buttons (on driver and
passenger side);
B- temperature adjustment knob on dri-
ver side;
C- automatic operation button (FULL
AUTO);
D- climate control data display;
E- temperature adjustment knob on
passenger side;
F- heated rear window/door mirrors
on/off button;
G- MAX-DEF function button (fast de-
frosting/demisting function for wind-
screen, heated rear window and door
mirrors with heating function);
H- buttons for adjusting the fan speed
and for turning the climate control sys-
tem off (OFF);
fig. 49 - TWO-ZONE configurationA0E0058m

60
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
THREE-ZONE controls fig. 50
Front controls
A- air distribution buttons (driver and pas-
senger side);
B- temperature adjustment knob on driver
side;
C- automatic operation button (FULL AUTO);
D- climate control data display;
E- temperature adjustment knob on passen-
ger side;
F- heated rear window/door mirrors on/off
button;
G- MAX-DEF function button (fast defrost-
ing/demisting function for windscreen, heat-
ed rear window and door mirrors with heating
function);
H- buttons for adjusting the fan speed and
for turning the climate control system off
(OFF);
I- Button for activating the MONO function
(alignment of set temperatures), correspond-
ing to driver’s one;
L- air recirculation on/off button;
M- climate control compressor on/off button;
N- passenger’s compartment temperature
sensor
Rear controls
P- knob for adjusting temperature on rear
passenger side;
Q- button for turning on automatic operation
(FULL AUTO) and for turning off air flow to
rear seats (OFF);
R- air distribution buttons;
S- rear temperature display.
fig. 50 - THREE-ZONE configuration - Front and rear controlsA0E0059m

67
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
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.

71
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
“FOLLOW ME HOME”
DEVICE
This function allows the illumination of
the space in front of the car for a pre-
set period of time.
Activation
Pull the stalk towards the steering wheel
within 2 minutes from when the engine
is turned off.
At each single movement of the stalk,
the staying on of the lights is extended
by 30 seconds up to a maximum of 3.5
minutes; then the lights are switched off
automatically.
Each time the stalk is operated, the
3
warning light turns on together with the
message on the display (see section
“Warning lights and messages”).
Deactivation
Keep the stalk pulled towards the steer-
ing wheel for more than 2 seconds.
AUTOMATIC HEADLIGHTS
SENSOR (daylight sensor)
(where provided)
It detects the changes of the external
light intensity of the car according to the
light sensitivity set: the greater the sen-
sitivity is, the smaller the amount of ex-
ternal light necessary to control the
switching-on of the external headlights
will be.
On certain versions, the daylight sen-
sor sensitivity can be adjusted through
the “Setup Menu” of the display (see
section “Reconfigurable multifunction
display” in this section).
Activation
Turn the knurled ring A-fig. 51to
2A:
in this way, the automatic activation of
the side/taillights and dipped beam
headlights is simultaneously enabled ac-
cording to outside brightness.
With lights switched on automatically
and in the presence of a switching off
control by the sensor, the main beams
will be switched off first and a few sec-
onds after also the sidelights.Deactivation
As a result of the sensor control, the
dipped beam headlights will switch off
and, after a few seconds, sidelights will
switch off too. The sensor is not able
to detect the fog presence, under this
condition lights shall therefore be
switched on manually.
Failure warnings
On certain versions headlight sensor fail-
ure is shown by the instrument panel
warning light
1, whereas on other ver-
sions a dedicated message is shown on
the display (see section “Warning lights
and messages”).

74
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
Turning the knurled ringA-fig. 54it
is possible to increase the sensitivity of
the rain sensor, obtaining a quicker
change from stationary (no wiping)
when the windscreen is dry, to first con-
tinuous speed (continuous, slow). A fur-
ther stroke will confirm operation.
Operating the windscreen washer with
the rain sensor activated (stalk at posi-
tion1-fig. 54) the normal washing
cycle is performed at the end of which
the rain sensor resumes its normal au-
tomatic function.
Removing the electronic key from the
ignition device, the rain sensor is deac-
tivated and the next time the engine is
started it will not be reactivated even if
the stalk has remained in position 1-
fig. 54. In this case to activate the rain
sensor, simply move the stalk to 0or2
and then back to 1.
When the rain sensor is reactivated in
this way, the wiper performs one stroke,
even if the windscreen is dry, to indicate
that reactivation has occurred. “Smart washing” function
Pulling the lever towards the steering
wheel (unstable position) operates the
windscreen washer.
Keeping the stalk pulled with just one
movement it is possible to operate the
washer jet and the wiper at the same
time; the wiper actually comes into op-
eration automatically when the stalk is
pulled for more than half a second.
The wiper stops working 3 strokes after
releasing the stalk; a further stroke af-
ter about 6 seconds will complete the
wiping operation.
RAIN SENSOR
(where provided)
The rain sensor A-fig. 55, located be-
hind the driving mirror, is an electronic de-
vice combined with the windscreen wiper
which has the purpose of automatically
adjusting the number of wipes to intensi-
ty of the rain. All the other functions con-
trolled by the right-hand stalk remain un-
changed.
The rain sensor is activated automati-
cally moving the right-hand stalk to po-
sition1-fig. 54and it has a range of
adjustment that gradually varies be-
tween wiper stationary (no wiping)
when the windscreen is dry, to wiper
at second speed (continuous, medium
wiping) with heavy rain.
A0E0227mfig. 55

75
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
HEADLIGHT WASHERS
(where provided) fig. 56
Headlight washers are visible and are fit-
ted with a nozzle for each external light
function. They come into operation au-
tomatically when operating the wind-
screen washer with external lights
turned on.
IMPORTANT Check at regular inter-
vals correct operation and cleanness of
nozzles. IMPORTANT In the event of rain sen-
sor failure, windscreen wiper operation
with right-hand stalk at 1-fig. 54shall
be intermittent. If failure occurs during
automatic operation, the system will
keep the last wiper operating condition.
Operation is however guaranteed al-
though moving the stalk to other posi-
tions.
The rain sensor is able to recognize and
automatically adjust itself in the pres-
ence of the following particular condi-
tions:
❒ impurities on the controlled surface
(salt, dirt, etc.);
❒difference between day and night.
Failure warnings
On certain versions rain sensor failure is
shown by the instrument panel warning
light
u, whereas on other versions a
dedicated message is shown on the dis-
play (see section “Warning lights and
messages”).
Rain sensor shall be de-
activated when washing
the car at automatic car-
wash.
Make sure the rain sen-
sor is deactivated if
there is ice on the wind-
screen.
Make sure the device is
off when cleaning the
windscreen.
WARNING
A0E0046mfig. 56
Streaks of water could
cause unrequired blade
movements.