2008 Alfa Romeo 166 heater

11
Sit comfortably in your vehicle and carefully read through the fol-
lowing pages.
You will immediately recognize the parts described and rapidly get
to know the controls and devices fitted to your vehicle.STR (SPORT THROTTLE RESPONSE) SYSTEM.................................................63
CONSTANT SPEED REGULATOR (CRUISE CONTROL)
...................................64
PARKING SENSORS
...............................................................................................67
INSTRUMENT PANEL
.............................................................................................68
CLIMATE CONTROL
................................................................................................80
CLIMATE CONTROL UNIT
.....................................................................................83
ADDITIONAL HEATER
............................................................................................91
CONTROLS
................................................................................................................93
INTERNAL FITTINGS
..............................................................................................96
SUNROOF
.................................................................................................................103
LUGGAGE COMPARTMENT
..................................................................................105
BONNET
....................................................................................................................109
HEADLIGHTS
............................................................................................................110
EOBD SYSTEM
........................................................................................................113
ABS
.............................................................................................................................114
VDC AND ASR SYSTEMS
.......................................................................................117
SOUND SYSTEM
......................................................................................................122
REFUELLING
............................................................................................................124
FUEL CUT-OFF SWITCH
........................................................................................127
ENVIRONMENTAL PROTECTION
.........................................................................129 DASHBOARD
................................................................................................page 12
ALFA ROMEO I.C.S. SYSTEM: CONTROLS ON STEERING WHEEL
. ..........14
THE ALFA ROMEO CODE SYSTEM
......................................................................16
ELECTRONIC ALARM
..............................................................................................22
REMOTE CONTROL DOOR LOCKING SYSTEM
................................................26
IGNITION DEVICE
...................................................................................................26
DOORS
.......................................................................................................................28
SEATS
.........................................................................................................................31
STEERING WHEEL ADJUSTMENT
.......................................................................36
ADJUSTING THE REAR-VIEW MIRRORS
..........................................................36
POWER WINDOWS
................................................................................................38
SEAT BELTS
...............................................................................................................40
CARRYING CHILDREN SAFELY
............................................................................45
FRONT AND SIDE AIR BAGS
...............................................................................50
LIGHT SWITCHES & STEERING WHEEL LEVERS
............................................57
GETTING TO KNOW YOUR CAR

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.

149
Useless loads
Do not overload the boot (especially in
town), as this will heavily affect fuel con-
sumption and stability of the vehicle.
Roof rack/ski rack
Remove the roof rack or ski rack imme-
diately after use. These accessories lower
air drag and adversely affect consumption
levels. For particularly bulky loads the use
of a trailer is preferable.
Electric services
Use electric devices only for the neces-
sary time. Rearscreen heating, additional
headlights, wipers and the heater fan
consume a considerable amount of ener-
gy, increasing the need for current highers
fuel consumption (up to +25% in the ur-
ban cycle).Climate control system
The climate control system is a further
load that weighs considerably on the en-
gine inducing higher consumption levels
(on average up to +20%). Outside tem-
perature permitting, preferably use the air
vents.
Spoilers
The use of spoilers that have not been
certified by Alfa Romeo can adversely af-
fect air drag and fuel consumption.DRIVING STYLE
Starting
Do not warm the engine stationary at i-
dle speed or high speed: in these condi-
tions the engine warms much more slow-
ly, increasing consumption and emissions.
It is therefore advisable to move off im-
mediately and slowly, avoiding high
speeds. This will warm up the engine
more quickly.
Pointless manoeuvres
Avoid revving the engine when waiting
at traffic lights and before switching the
engine off. This, like revving before
changing gear, serves absolutely no pur-
pose on modern cars and increases con-
sumption and emission levels.
Gearshifting
As soon as the road and traffic condi-
tions permit it, engage a higher gear. The
use of a low gear to obtain lively acceler-
ating increases fuel consumption.
In the same way, incorrect use of a gear
increases consumption, emission and en-
gine wear.

189
Circuits operated by relays are the fol-
lowing (fig. 89):
A.Dipped beam headlight
B.Climate control fan
C.Horn
D.Front fog light
F.. Petrol versions (single fan): engine
cooling radiator (high speed)
JTD versions (two-fan): engine cooling
radiator (high speed)
G.Conditioner compressor
H.Petrol versions: engine cooling radia-
tor (low speed)
JTD versions (two-fan): engine cooling
radiator (high speed)L.Fuel pump
M.Electronic injection main relay
N.Starter motor
P.Diesel filter warming (JTD versions)
JTD versions (two-fan): engine cooling
radiator (low speed)
To gain access to relays on the bracket
set behind the left headlight (fig. 91),
remove the cover (A-fig. 90) after
turning the fastening pins (B).Circuits operated by relays are the fol-
lowing (fig. 91):
– Brown base relay: additional heater
(JTD versions)
– Black base relay: engine cooling radi-
ator relay, high speed (JTD versions).
A0D0096m
fig. 90
A0D0110m
fig. 91

190
FUSES AND RELAYS IN THE
BOOT
Fuses and relays are housed in the
right-hand side of the boot are housed in
a box, in the recess closed by cover (A-
fig. 92).
To open the cover turn the knob (B).
The devices protected by the fuses in
the boot are listed in the tables on next
pages.IMPORTANTThe arrangement of the
relays may vary depending on the ver-
sions and markets. In the event of a sus-
pected anomaly, contact Alfa Romeo Au-
thorized Services.Circuits operated by relays are the fol-
lowing (fig. 93):
A.Air mixing actuator, climate control
unit, additional heater control (JTD ver-
sions)
B.Rearscreen heating relay
C.Seat warming control, elec-
trochromic driving mirror, sun visor light,
rain sensor, parking sensor control unit,
door mirror control light, remote control
receiver, alarm system control unit, dri-
ver's power window control LOCK warn-
ing light
D.Windscreen heating, door mirror de-
frosting
E.Front seat warming, rear current
socket, front seat electric adjustment,
powered sunroof
F.Direction indicators, trailer presetting
518PGS
fig. 93
A0D0097m
A0D0111m
fig. 92

191
System/Component Fuse no. Ampere Location
ABI control unit 13 10A fig. 86
ABI control unit – Central locking 19 20A fig. 93
ABI control unit – Front LH power window 18 20Afig. 93
ABI control unit – Front RH power window 3 20A fig. 93
ABI control unit – Rear LH power window 14 20Afig. 93
ABI control unit – Rear RH power window 17 20Afig. 93
ABS control unit 9 5A fig. 86
7 40A fig. 89
3 40A fig. 89
Additional heater (JTD versions) 17 20A fig. 89
13 10A fig. 93
Alarm system (control unit) 12 10A fig. 93
15 10A fig. 93
Alfa Romeo Code System 20 5A fig. 86
16 5A fig. 86
Cell phone (handset) 18 5A fig. 86
5 10A fig. 86
Central locking (ABI control unit) 19 20A fig. 93
Cigar lighter 7 20A fig. 86
Climate control fan 2 30A fig. 89
Climate control unit 19 5A fig. 86
External lights Fuse no. Ampere Location
Brake lights (switch) 9 5A fig. 861 15A fig. 86
Direction indicators 12 10A fig. 93
External lights (control) 5 10A fig. 86
Front fog lights 16 15A fig. 89
Headlights and headlight position
sensor (gas discharge headlights) 6 7.5A fig. 86
IGE control unit:
- brake light switch 1 15A fig. 86
- brake lights 9 5A fig. 86
- headlight spot 11 15A fig. 86
- left side lights 17 10A fig. 86
- rear light units 15 10A fig. 86
- right side lights 8 10A fig. 86
Left dipped beam headlight 12 15A fig. 89
Reversing lights (only versions with
manual gearbox) 13 10A fig. 86
Right dipped beam headlight 10 15A fig. 89
Internal lights Fuse no. Ampere Location
Dashboard light dimmer 5 10A fig. 86
Door mirror control light 15 10A fig. 93
Glovebox light 5 10A fig. 86
Seat warming control light 15 10A fig. 93
Sun visor lights 15 10A fig. 93

263
ABS (system) ..............................114
Additional heater ..............................91
Air bags, front and side ....................50
Air cleaner ....................................218
Air conditioner ................................83
Air conditioning ................................80
Alfa Romeo CODE system ..................16
Alfa Romeo I.C.S. system ................14
Ashtray ..........................................99
ASR (system) ................................117
At the filling station ........................124
Automatic fuel cut-off switch
and power supply ......................127
Battery ......................................219
Body maintenance..........................225
Boot ............................................105
Boot light......................................185Brake Assist ............................116-141
Brakes..........................................241
Bulb replacement ....................165-181
Car maintenance......................201
Carrying children safety ....................45
Central locking ................................29
Changing the bulb
- Bulb types ........................165-166
- General instructions ..................165
Child safety ....................................30
Child safety device (doors) ................45
Cigar lighter ....................................98
CO
2emissions ................................241
Coin holder......................................98
Controls ..........................................93
Correct use of the car..............133
Courtesy light ................................101Cruise Control ..................................64
Dashboard ....................................68
Data plates....................................232
Diesel filter....................................219
Dimensions ..................................234
Direction indicators ..........................59
Door lights ....................................102
Doors ............................................28
Dust/pollen filter ......................90-219
Electronic alarm system ..................22
Electronic control units ....................223
Emission control devices ..................129
Engine ..........................................235
Engine codes – Body versions ..........233
Engine coolant temperature gauge ......74
Engine oil consumption ..................236
ALPHABETICAL INDEX