2007 Alfa Romeo 147 climate control

GETTING TO KNOW YOUR CAR
174
EMISSION REDUCING DEVICES
Trivalent catalytic converter
(catalytic silencer)
The exhaust system is fitted with a cata-
lyst formed of alloys of precious metals; it
is housed in a stainless steel container which
is able to withstand the high operating tem-
peratures.
The catalyst converts the unburnt hydro-
carbons, carbon monoxide and nitric oxide
in the exhaust gas (even in minimal quan-
tity owing to the electronic ignition and in-
jection systems) into non polluting com-
pounds.Lambda sensors
Lambda sensors measure the content of
oxygen present in the exhaust gas. The sig-
nal transmitted by the Lambda sensors is
used by the injection and ignition electron-
ic control unit to adjust the air - fuel mixture.
Anti-evaporation system
As it is impossible, even when the engine
is switched off, to prevent the formation of
fuel vapours, a system has been devised
which traps the vapours in a special acti-
vated carbon container.
When the engine is running these vapours
are withdrawn and sent to combustion.
ENVIRONMENTAL
PROTECTION
The design and construction of the vehi-
cle have not only been developed with the
traditional aspects of performance and safe-
ty in mind, but also take into account the in-
creasingly pressing problems tied to pro-
tecting the environment.
The choice of materials, techniques and
particular parts are the result of work which
has made it possible to drastically reduce
the harmful effects on the environment and
guarantee compliance with the most strin-
gent international regulations.
USE OF NON-TOXIC
MATERIALS
None of the components of the vehicle con-
tain asbestos. The padding and the climate
control system do not contain CFCs which
are held responsible for the destruction of
the ozone layer.
The colouring agents and the corrosion in-
hibitors used on the nuts, screws and bolts
do not contain cadmium or chrome which
could pollute the atmosphere or water tables.
Due to the high tempera-
tures reached during oper-
ation of the catalytic silencer the
vehicle should not be parked over
inflammable materials (paper, fu-
el oils, grass, dry leaves etc.).
WARNING

CORRECT USE OF THE CAR
182
Tyres
Check the pressure of the tyres routinely at
an interval of no more than 4 weeks: if the
pressure is too low consumption levels in-
crease as resistance to rolling is higher. It
should be underscored that in these condi-
tions tyre wear increases and vehicle per-
formance is lower, therefore also its safety.
Useless loads
Never travel with an overload in the boot.
The weight of the vehicle (especially in ur-
ban traffic), and its geometry heavily affect
consumption levels and stability.
Luggage/ski racks
Remove the luggage rack or ski rack from
the roof as soon as they are no longer used.
These accessories lower air penetration and
adversely affect consumption levels. When
needing to carry particularly voluminous ob-
jects, preferably use a trailer.Electric services
Use electric devices only for the amount of
time needed. Rearscreen heating, addition-
al headlights, windscreen wipers and heater
fan need a considerable amount of energy
therefore, increasing the requirement of cur-
rent increases fuel consumption (up to
+25% in the urban cycle).
Climate control system
The climate control system is a further load
bearing heavily on the engine inducing high-
er consumption levels (up to +20% on av-
erage). Outside temperature permitting,
preferably use the air vents.
Aerodynamic items
The use of non-certified aerodynamic items
may adversely affect air drag and con-
sumption levels.DRIVING STYLE
Starting
Do not warm the engine with the car at a
standstill or at idle or high speed: under
these conditions the engine warms up much
more slowly, increasing electrical consump-
tion and emissions. It is therefore advisable
to move off immediately, slowly, avoiding
high speeds. This way the engine will warm
faster.
Pointless manoeuvres
Avoid accelerating when waiting at traffic
lights or before switching off the engine. This
and also double declutching is absolutely
pointless on modern cars and also increase
consumption and pollution.
Gear shifting
As soon as the conditions of the traffic and
road allow, use a higher gear. Using a low
gear to obtain brilliant performance increases
consumption. In the same way improper use
of a high gear increases consumption, emis-
sions and engine wear.

IN AN EMERGENCY
212
Hazard warning light
Right dipped-beam headlight
Left dipped-beam headlight
Main-beam headlight
Foglight
Braking light
Reversing light
+30 direction indicators10
10
10
15
15
10
7.5
10 F53
F12
F13
F2
F30
F37
F35
F53 52
52
52
53
53
52
52
52
LIGHTS FIGURE FUSE AMPERES
FUSE SUMMARY TABLE
30
30
10
7.5
15
7.5
7.5 IGN (MAXI-FUSE)
F13
F31
F39
F1
F31 54
54
52
52
52
53
52
SERVICES FIGURE FUSE AMPERES
Selespeed transmission pump
Ignition switch
Headlight aiming device
Climate control system
Climate control system
Climate control compressor
Heater unit relay coils

IN AN EMERGENCY
214
Volumetric sensors
VDC system sensor
Steering angle sensor
EOBD system diagnosis socket
Cell phone provision
Driver’s door control unit supply
Passenger’s door control unit supply
Controls lighting
Climate control system controls lighting
Instrument cluster
Instrument cluster
Driver’s door control unit
ABS control unit
ABS control unit
Dashboard control box
Boot control unit
Air - bag control unit
Electronic injection control unit +30
Dashboard control unit15
7.5
7.5
15
15
20
20
7.5
7.5
10
10
15
7.5
50
50
15
7.5
7.5
70 F39
F42
F42
F39
F39
F47
F48
F49
F35
F37
F53
F39
F42
ABS (MAXI-FUSE)
CPL2 (MAXI-FUSE)
F39
F50
F6
CPL1 (MAXI-FUSE) 52
52
52
52
52
52
52
52
52
52
52
52
52
54
54
52
52
53
54
SERVICES FIGURE FUSE AMPERES

IN AN EMERGENCY
215
40
40
40
15
15
25
7.5
15
15
20
15
15
7.5
30
50 A/C (MAXI-FUSE)
FAN1 (MAXI-FUSE)
FAN2 (MAXI-FUSE)
F3
F4
F60 (*)
F11
F61 (*)
F62 (*)
F63 (*)
F46
F10
F12
EFI (MAXI-FUSE)
JB3 (MAXI-FUSE) 54
54
54
53
53
52
53
52
52
52
52
53
53
54
54
SERVICES FIGURE FUSE AMPERES
(*) Fuse behind dashboard control box on an auxiliary bracket.
Climate control fan
Radiator fan
Radiator fan
Horn
Fuel pump
Tailgate electric unlocking
Electronic injection system
Bose system
Bose system
Sunroof
Sun roof
Petrol/ignition coil injectors
Services
Electronic injection
Engine compartment fuse carrier module

VEHICLE MAINTENANCE
223
20 40 60 80 100 120 140 160 180Thousands of km
Change timing gear drive belt (*)
Change accessory Poly-V drive belt
Change spark plugs
Check operation of engine control system (through diagnosis socket)
Check mechanical transmission and differential oil level
Change engine oil
Change engine oil filter
Change brake fluid (or every 2 years)
Change pollen filer (or once a year)
Check emissions/smoke at the exhaust
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(*) Or every 3 years for harsh conditions (cold climates, city driving or prolonged lengths of time at idle speed, dusty areas)
Or every 5 years, regardless of mileage.

VEHICLE MAINTENANCE
232
AIR CLEANER
The air cleaner is connected to the tem-
perature and air flow sensors which send
to the control unit the electric signals need-
ed for correct operation of the injection and
ignition system.
It must therefore always be in perfect con-
ditions, to ensure correct operation of the
engine, low consumption and exhaust emis-
sion levels.
If the operations concern-
ing cleaner replacement
are not carried out correct-
ly and with the due precautions,
they may compromise the travel-
ling safety of the vehicle. You are
recommended to have this opera-
tion carried out by Alfa Romeo Au-
thorised Services.
Any attempt to clean the
cleaner may damage it,
leading to serious engine
damage.If the car is habitually
used in dusty areas, the
cleaner should be replaced
at shorter intervals than those
specified in the Programmed Main-
tenance Schedule.
POLLEN FILTER
This has a mechanical/electrostatic air fil-
tering action, provided that the windows and
doors are shut.
Have the dust/pollen filter checked once
a year by Alfa Romeo Authorised Services,
preferably at the onset of summer.
If the car is mainly used in dusty or heav-
ily polluted areas, the filter should be
changed at more frequent intervals than
specified in the Scheduled Maintenance Pro-
gramme.
IMPORTANTThe failure to replace the
pollen filter can considerably reduce the ef-
fectiveness of the climate control system.

TECHNICAL SPECIFICATIONS
257
Urban
Extraurban
Combined
3.2 V6 24V
18.1
8.6
12.1
CONSUMPTION ACCORDING TO EEC 1999/100/ (litres x 100 km)
FUEL CONSUMPTION
The fuel consumption values shown in the
following tables were established during ho-
mologation tests prescribed in specific Eu-
ropean Directives.
The test conditions adopted include the fol-
lowing:
–an urban cycle: this includes cold
starting followed by simulation of a mixed
urban route;–an extraurban cycle: this includes
frequent accelerating in all gears, simulat-
ing normal extraurban use of the vehicle;
the speed varies between 0 and 120 kph;
–combined consumption: this is cal-
culated by considering a route consisting of
about 37% urban cycle and 63% extraur-
ban cycle.WARNING The type of route, traf-
fic conditions, weather conditions,
driving style, conditions of the ve-
hicle, trim level/equipment/ acces-
sories, vehicle load, presence of roof
rack, use of the climate control sys-
tem, other items that negatively af-
fect the aerodynamics of the vehi-
cle or wind resistance lead to dif-
ferent fuel consumption levels than
those measured by the above-men-
tioned procedures (see “Reducing
running costs and environment pol-
lution“ in the chapter “Correct use
of the car“).
3.2 V6 24V Selespeed
18.1
8.6
12.1