spark plugs replace Alfa Romeo 166 2007 Owner handbook (in English)

205
thousands of kilometres 20 40 60 80 100 120 140 160 180
Change fuel filter (diesel versions)•••••••••
Change air cleaner cartridge (petrol versions)••••
Change air cleaner cartridge (diesel versions)•••••••••
Check and top up, if required, fluid levels (brakes/hydraulic clutch, power steering,
windscreen washer, battery, engine coolant, etc.)•••••••••
Replacement of timing gear drive belt (*) and Poly-V accessory drive belt•
Replacement of spark plugs (petrol versions)•
Check operation of engine control systems (through diagnostics socket)••••
Check manual gearbox and differential oil level (petrol versions)••
Change engine oil and oil filter •••••••••
Change brake fluid (or every 24 months)•••
Check dust/pollen filter•••••••••
(*)Or every 4 years in harsh conditions (cold climates, stop and go city traffic).
Or every 5 years, regardless of the mileage.

224
– Insert a new blade passing it through
the curved top of the arm (A) through
the slot.
– Lift the blade to clamp tab (B) of the
coupling spring with the curved top of the
arm.
IMPORTANT The blades may differ
according to the versions. In any case,
follow the instructions provided in the
packs available as spares from Alfa
Romeo Authorized Services.WINDSCREEN WIPER
BLADES
(fig. 17)
Periodically clean the wiper blades and
ensure that they are not damaged. If the
rubber blades are bent of worn in parts
they should be replaced, as follows:
– Press the tab (B) of the blade catch
spring and push the blade towards the
base of the arm (A).
– When the catch spring has been freed
from the curved top of the arm, withdraw
the blade from the arm through the slot. The spark plugs must be
changed at intervals
given in the Pro-
grammed Maintenance Schedule.
Only use spark plugs of the spec-
ified type (see table of “Fuel
Supply and Ignition” in the
“Technical specifications” chap-
ter): if the thermal grade is inad-
equate, or the foreseen life is
not guaranteed inconveniences
may result.
SPARK PLUGS
If the engine is running unevenly have
the spark plugs checked by Alfa Romeo
Authorized Services.
624PGSm
fig. 17

238
FUEL SUPPLY AND IGNITION
3.2 V6 24V JTD 20VMultijet
Supply MPI Bosch Direct injection
Motronic ME7 with variable
electronic geometry
injection turbosupercharger
and ignition and intercooler
with knock electronic
selective control diesel control
Common Rail type
second generation
Spark plugs NGK RPFR6B –
Replace every 100,000 km –
Firing order 1-4-2-5-3-6 –
Injection order – 1-2-4-5-3
(*) There are two different spark plugs, one of each type, per cylinder.
Alterations or repairs to the supply system not carried out correctly or without taking account of the
technical specifications of the system, may cause abnormal functioning with the risk of fire.
WARNING

265
Radio ........................................122
Radio-frequency remote control ........251
Radio transmitters and cellular
telephones ..............................156
Rain sensor ....................................61
Rear fog guards ..............................94
Rear roof lamps ............................101
Rear seat ........................................35
Rearscreen heating ..........................86
Refuelling......................................236
Relay (replacement) ......................186
Reversing lights..............................178
RPM counter....................................71
Safeguarding the emission
control devices ..........................150
Safeguarding the environment ........129
Safety belts ....................................40
Ski compartment ............................35
Snow chains..................................147Spark plugs ..................................224
Starting device ............................26-27
Stationary vehicle ..........................138
Steering........................................242
Steering column stalks ......................57
Steering lock ..................................27
Steering wheel (adjustment lever) ......36
STR system (Sport Throttle Response) 63
Sun visors ....................................100
Sunroof ........................................103
Supply/ignition ............................238
Technical specifications..........231
Telephone (provision) ....................102
Third stop light (bulb change) ..........180
Top speeds ....................................239
Tow hook ..............................153-154
Towing the car or another vehicle......196
Towing trailers ..............................152
Transmission ................................242Travelling ......................................137
Tyres
- Correct reading ........................248
- Inflation pressure ......................247
- Winter tyres ............................147
Useful accessories ........................156
VDC (system)..............................117
VDC and ASR systems ....................117
Vehicle inactivity ............................155
Vehicle lifting ................................197
Warning lights ..............................73
Weights ........................................237
Wheel rims....................................245
Windscreen wiper ............................61
Wing mirrors ..................................37