sensor Alfa Romeo 156 2004 Owner handbook (in English)

CAR MAINTENANCE
265
DIESEL FILTERDRAINING CONDENSATION
WATER
Water in the supply circuit
can seriously damage the
whole injection system and
cause malfunctions to engine oper-
ation. Should the warning lamp
c
turn on, available for the provid-
ed versions/markets, contact as
soon as possible the Alfa Romeo
Authorised Service for drainage op-
erations.
When the car is habitual-
ly driven in dusty areas,
the cleaner should be
changed at shorter intervals than
those given in the Programmed
Maintenance Schedule.Any attempt to clean the
air cleaner may cause se-
rious engine damage.
AIR FILTERThe air cleaner is connected to the tem-
perature and air flow sensors which send the
electrical signals needed for correct opera-
tion of the injection and ignition system to
the control unit.
It must therefore always be in perfect con-
ditions to ensure correct operation of the en-
gine, low consumption and exhaust emis-
sion levels.
If they are not carried out
correctly and with the due
precautions, the operations
involving cleaner replacement de-
scribed herein may compromise the
safety of the car.
This operation should be carried
out by Alfa Romeo Authorized Ser-
vices.

ALFA 156 SPORTWAGON
282
LUGGAGE
COMPARTMENTThe boot lid can be opened from outside
the vehicle (pressing the button on the key)
and from inside the vehicle.
WARNINGIf the tailgate is not shut
properly, this will be shown by the corre-
sponding warning light
´
and warning mes-
sage on the Infocenter display.
OPENING FROM INSIDE (fig. 13)
To open the tailgate from inside the pas-
senger compartment pull the lever (A) at
the side of the driver’s seat.fig. 13
A0B0042m
Lifting the tailgate is facilitated by the ac-
tion of the gas springs.
The gas springs are cali-
brated to ensure correct
lifting of the tailgate with
the weights foreseen by the man-
ufacturer. The addition of objects
(spoiler, etc.) may adversely affect
correct operation and safety in use
of the tailgate.
OPENING WITH REMOTE
CONTROL
(fig. 14)
The boot can be opened by remote control
pressing the button (C) on the key, also
when the electronic alarm (where fitted) is
engaged.
In this case the alarm system switches off
volumetric protection and the tailgate con-
trol sensor. The system also sounds two
beeps and the direction indicators light up
for three seconds (with the exception of ver-
sions for certain markets).
Closing the boot again the control functions
are restored, the system sounds two beeps
and the direction indicators light up for three
seconds (with the exception of versions for
certain markets).
fig. 14
A0B9000m
Only use the tailgate open-
ing lever with the car sta-
tionary.
WARNING

TECHNICAL SPECIFICATIONS
305
SPARK PLUGClean, intact spark plugs are determinant
with regard to engine efficiency and for re-
ducing the emission of pollutants.Spark plugs should be re-
placed at the intervals
specified in the Scheduled
Maintenance Programme. Only use
spark plugs of the specified type: if
the thermal capacity is inadequate
or if the envisaged life is not guar-
anteed inconveniences may ensue.BRAKESService brakes:
– front
– rearParking brake
If examined by an expert eye, the ap-
pearance of a spark plug is a sound clue
for locating a fault, even if not involving the
ignition system. Therefore if you are expe-
riencing any engine problems, it is impor-
tant to have the spark plugs checked by Al-
fa Romeo Authorized Services.
STEERING
1.6 T.SPARK 1.8 T.SPARK 2.0 JTS 2.0 JTS 2.5 V6 24V 2.5 V6 24V JTD JTD 20V
Selespeed Q-System JTD 16V Multijet
MultijetSelf-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated
disk disk disk disk disk disk disk disk
Disk Disk Disk Disk Disk Disk Disk Disk
Wheel anti-look system (ABS) with electronic braking distribution.
Servo-brake. Electronic control with brake pad wear sensors. Gasket of ecological type.
Controlled by hand lever operating rear brakes.
Type Turning radius(between pavements)
1.6 T.SPARK 1.8 T.SPARK 2.0 JTS 2.0 JTS 2.5 V6 24V 2.5 V6 24V JTD-JTD 16V JTD 20V
Selespeed Q-System Multijet Multijet
Rack and pinion.
Hydraulic power steering with liquid reservoir in engine compartment
11.1 m 11.1 m 11.1 m 11.1 m 11.6 m 11.6 m 11.1 m 11.1

ALPHABETICAL INDEX
331
N
umber plate lights
– changing bulbs ................ 229-296
O
ddment recesses
– in the boot ........................... 285
– on centre console ................... 165
– on dashboard ........................ 165
Odometer ................................... 59
Paintwork (maintenance) ............ 275
– colour label ........................... 301
Parking....................................... 191
Parking sensors............................ 187
Partial odometer .......................... 63
Performance................................ 314
Pockets and compartments
on front doors ........................... 165
Pollen filter ................................ 266
Power steering
– checking fluid level
and topping up ..................... 262
Power windows ........................... 27
Pre-tensioning devices ................... 32
Protecting emission reducing
devices ....................................... 198
Q
-system automatic gearbox........ 152
– acoustic warning .................... 159
– automatic operation ............... 154
– checking the oil level .............. 260
– fault signalling ....................... 158
– manual operating mode/
Q-System activation................ 157
– moving off ............................ 152
– push starting ......................... 159
– selecting automatic/
manual gearshifting................ 153
– selecting the driving modes ..... 156
– starting the engine ................. 152
– stopping the car ..................... 157
– towing the car ....................... 160
R
adio transmitters and cellular
telephones ............................... 167
Rain sensor ................................. 51
Rear fog guards
– changing bulbs ............... 227-294
– switching on.......................... 136
Rear light units
– bulb replacement ................... 227
Rear roof lights ............................ 163
– changing bulbs ...................... 231
Rear seats................................... 23– centre armrest ................. 23-280
– headrests ....................... 24-279
– ski compartment.............. 24-280
Rear suspensions
(automatic geometry control) ..... 293
Rearscreen heating................. 26-133
Rearscreen washer ....................... 281
– spray jet ............................... 281
Rearscreen wiper
– blade replacement ................. 281
– operation .............................. 281
Reducing running costs
and environment pollution .......... 197
Refilling ..................................... 319
Remote control ............................ 7-12
– additional remote controls ...... 12
– alarm system ........................ 11
– boot opening ......................... 8
– changing the battery .............. 10
– door opening-closing ............... 7
– ministerial homologation ......... 325
– remote door locking/
unlocking .............................. 16
Rev counter................................. 62
Reversing lights
– changing bulbs ................ 227-294

ALPHABETICAL INDEX
333
Tailgate
– closing ..................... 171-283
– opening from inside .. 135-170-282
– opening with remote
control ..................... 8-170-282
Technical specifications.......... 299
Telephone (provision) .................. 166
– cellular telephone................... 166
– radio transmitters ................... 166
Third stop light ...................... 230-297
Tools .......................................... 294
Tow hook ............................ 199-201
Tow rings .................................... 243
Towing the car....................... 160-244
Towing trailers ............................. 199
Transmission
– technical data ........................ 304
Tyres
– changing............................... 209
– correct reading....................... 311
– FIX&GO
(kit for quick tyre repairing)..... 212
– in the event of a puncture . 207-294
– inflation pressure .................. 307
– snow chains ......................... 202
– tools and compact spare
wheel housing ....................... 294– types of tyres
and rims ............................... 306
– winter tyres........................... 202
U
nderbody protection.................. 274
Useful accessories ........................ 204
V
DC system .............................. 179
– ASR function ......................... 181
Vehicle inactivity ......................... 203
– removing from storage ........... 204
Volumetric protection .................... 15
W
arning lights and indications .... 92
Washing the car
– body .................................... 275
– engine compartment .............. 276
– interiors (cleaning) ................. 277
Weights................................ 317-318
Wheel rims ........................... 306-312
– correct rim reading ................. 312
Wheels and tyres
– FIX&GO (quick tyre repair kit) .. 212
– geometry.............................. 313
– replacement ......................... 209
– snow chains ......................... 202
– tyres and rims ...................... 306
– tyre inflation pressure ....... 271-310Window winders .......................... 28
Windows
– cleaning................................ 276
Windscreen washer
– checking fluid level
and topping up ...................... 264
– “intelligent washing” function . 51
– operation ............................. 50
– spray jets .............................. 274
Windscreen wiper
– blade replacement ................. 273
– rain sensor ........................... 51
– operation .............................. 50
– spray jets .............................. 274
Winter
– snow chains .......................... 202
– winter tyres .......................... 202
X
enon lights
– replacing dipped-beam
headlamps ............................ 221
– replacing direction indicators .... 223
– replacing main beam
headlamps ............................ 222
– replacing sidelights ................. 223