spark plugs Alfa Romeo 147 2005 Owner handbook (in English)

CORRECT USE OF THE CAR
181
DRIVING ON SNOW AND ICE
Here are a few suggestions for driving in
these conditions:
– Drive very slowly.
– On a snowy road, fit winter tyres or
snow chains; see the related paragraphs in
this chapter.
– Use engine braking where possible and
avoid abrupt braking.
– Braking with a car without ABS, avoid
locking the wheels, modulating the pressure
on the brake pedal.
– Avoid abrupt acceleration and changes
of direction.
– During cold weather even apparently dry
roads may be covered with occasional patch-
es of ice. Pay great attention therefore when
driving on roads which are in the shade, or
where rocks or trees line the road and on
which ice may persist.
– Keep further back from the vehicle in
front.
DRIVING WITH ABS
The ABS is a part of the braking system
which essentially offers 2 advantages:
1) it prevents locking, thus skidding, of the
wheels during emergency braking and es-
pecially under conditions with poor grip;
2) it allows braking and steering at the
same time, to avoid any sudden obstacles
or to direct the car as required when brak-
ing, compatibly with the physical limits of
lateral grip of the tyre.
To make the most of the ABS:
– In emergency braking or when grip is
low, a slight pulsing can be felt on the brake
pedal: this means that the ABS has come in-
to action. Do not release the pedal, but con-
tinue pressing it to give continuity to the
braking action.
– The ABS prevents the wheels from lock-
ing but it does not increase the physical lim-
its of grip between the asphalt and the road.
Therefore, also with a car fitted with ABS,
keep within a safety distance from the ve-
hicle in front and limit speed when ap-
proaching bends.
The ABS serves to increase vehicle con-
trollability not to go faster.
REDUCING RUNNING
COSTS AND
ENVIRONMENT
POLLUTION
By following a few simple guidelines, it
is possible to save vehicle running costs and
reduce harmful emissions.
GENERAL CONSIDERATIONS
Vehicle maintenance
The conditions of the vehicle represent an
important factor which affects fuel con-
sumption as well as travelling tranquillity
and the life of the vehicle. For this reason,
it is wise to take care of its maintenance
have the checks and adjustments carried out
in accordance with the “Scheduled Mainte-
nance Programme” (see... spark plugs, air
cleaner, timing).

CORRECT USE OF THE CAR
184
PROTECTING EMISSION
REDUCING DEVICES
Correct operation of the anti-pollution de-
vices not only guarantees respect for the en-
vironment but also influences vehicle per-
formance. Keeping these devices in good
condition is therefore the first rule for both
environment-friendly and economy driving.
The first precaution is to closely follow the
“Programmed Maintenance Schedule”. Use
only unleaded petrol (95 RON) (Specifica-
tion EN228).
If difficulty with starting is experienced do
not insist with extended attempts. Especially
avoid bump, tow or coast starts: these may
all damage the catalyst. Only use an auxil-
iary battery to start the car in an emergency.If when driving the engine is not running
smoothly, continue, minimising the need for
engine performance and contact Alfa Romeo
Authorised Services as soon as possible.
When the fuel reserve warning light turns
on, fill up as soon as possible. A low fuel lev-
el may cause an irregular supply to the en-
gine with inevitable increase of the exhaust
gas temperature; this would result in serious
damage to the catalyst.
Never run the engine, even as a test, with
one or more spark plugs disconnected. Do
not warm the engine at idle speed before
moving off, unless the outside temperature
is very low and, in this case too, for no more
than 30 seconds.
Do not spray anything on
the catalyst, lamda sensor
and exhaust pipe.
WARNING
The failure to follow these
rules may cause a fire
hazard.
WARNING
Do not install other heat
guards and do not remove
the existing ones on the catalyst
and exhaust pipe.
WARNING
During normal service the
catalyst reaches high tem-
peratures. Do not therefore park
the car over inflammable materials
(grass, dry leaves, pine needles,
etc.): fire hazard.
WARNING

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.

TECHNICAL SPECIFICATIONS
245
Code type
Cycle
Number and position of cylinders
Piston bore and stroke mm
Total displacement cm3
Maximum horsepower (EEC):
kW
HP
at rpm
Maximum torque (EEC):
Nm
kgm
at rpm
Spark plugs
Fuel
ENGINE
3.2 V6 24V
932A000
Otto
6 in 60° V
93 x 78
3179
184
250
6200
300
30.6
4800
NGK R PFR6B
Unleaded petrol 95 RON
(Specification EN228)
3.2 V6 24V Selespeed
932A000
Otto
6 in 60° V
93 x 78
3179
184
250
6200
300
30.6
4800
NGK R PFR6B
Unleaded petrol 95 RON
(Specification EN228)

TECHNICAL SPECIFICATIONS
247
SPARK PLUGS
Clean, 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 inade-
quate or if the envisaged life is not
guaranteed inconveniences may en-
sue.
BRAKES
Service brakes: – front
– rear
Parking 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
Type
Turning radius (between pavements)
3.2 V6 24V - 3.2 V6 24V Selespeed
Disk self-ventilated
Disk
3.2 V6 24V 3.2 V6 24V Selespeed
Rack and pinion.
Hydraulic power steering with fluid reservoir in engine compartment
12.1 m 12.1 m Wheel anti-look system (ABS) with electronic braking distribution.
Servo-brake. Electronic control with brake pad wear sensors. Gaskets of ecological type.
Controlled by hand lever operating rear brakes.

ALPHABETICAL INDEX
280
- operation................................ 46
Rearview mirrors
- external ................................. 23
- internal .................................. 22
Reducing running costs
and environment pollution .......... 181
Refuelling
- specifications .......................... 254
Remote control ............................ 7
- additional remote controls ......... 11
- alarm system .......................... 11
- battery changing ..................... 10
- door opening-closing ................ 7
- ministerial homologation........... 14
- tailgate opening ...................... 8
Restraining the load...................... 129
Rev counter................................. 51
Reversing light ............................. 203
Right hand drive.................... 259Roof rack (provision) .................... 131
Running economy ........................ 183
Safe driving ............................... 178
Safeguarding emission reduction
devices .................................... 184
Safeguarding the environment ....... 174
Scheduled maintenance
programme .............................. 222
Seat belts ................................... 25
- carrying children safety ............. 31
- front belt height adjustment ...... 27
- general instructions .................. 29
- load limiters............................ 27
- maintenance ........................... 30
- pretensioners .......................... 28
- use of belts............................. 25
Seats for children ......................... 31
Seats, front............................ 16
- adjustments....................... 17
- centre armrest......................... 18- heating .................................. 18
- rear pockets ............................ 18
- tilting the back rest .................. 17
Seats, rear .................................. 19
- boot extension ........................ 19
- centre armrest......................... 21
- headrest ................................. 21
Sidelights
- changing front bulbs................. 202
- changing rear bulbs.................. 204
- changing side bulbs.................. 203
- switching on ........................... 43
Snow chains................................ 186
Spark plugs (technical data) .......... 247
Speakers ................................... 171
Speedometer............................... 51
Spray jets
- windscreen/rearscreen ............. 239