2006 Alfa Romeo 166 ignition

221
CHARGING THE BATTERY
IMPORTANT The description of the
battery charging procedure is described
only for informative purposes. This opera-
tion should be carried out by Authorized
Alfa Romeo Services.
Charging should be slow at a low amp
rating for about 24 hours. Charging for a
longer time may damage the battery.
Charge the battery as follows:
– If the car is fitted with an alarm sys-
tem, turn off the alarm with the remote
control and deactivate the system turning
the emergency key to “OFF” (see “Elec-
tronic alarm” in the chapter “Getting to
know your car”).– Disconnect the terminals of the elec-
tric system from the battery poles.
– Connect the charger cables to the bat-
tery.
– Turn on the charger.
– After charging turn off the charger be-
fore disconnecting it from the battery.
– Re-connect the terminals to the bat-
tery poles correctly.
– Turn the ignition key to MARand
leave it in this position for 30 seconds to
1 minute, then turn to STOPfor about 5
to 10 seconds, after which the engine
can be started.
– Remember to reactivate the alarm
system (if present) turning the emer-
gency switch to “ON”.
The wrong electric and
electronic accessory in-
stallation may cause se-
vere vehicle damages.When doing any work on
the battery or near it, al-
ways wear special protective gog-
gles.
Working with the fluid
level too low damages
the battery irreparably, even
breaking the body and completely
leaking the acid contained.
WARNING
WARNING

222
– Before doing any work on the electric
system, disconnect the battery negative
terminal.
If after purchasing the car, you wish to
install electrical accessories which need a
permanent electrical supply (alarm,
hands-free phone, radio-navigator with
satellite anti-theft function, etc.) contact
Authorised Alfa Romeo Services whose
qualified personnel, in addition to sug-
gesting the most suitable devices from
Lineaccessori will be able to evaluate the
total electrical absorption, checking
whether the car’s electric system is able
to support the load required or whether a
battery with higher capacity is necessary.
In fact, these devices continue to absorb
current with the ignition key off (car
parked, engine off) and may gradually
drain the battery. IMPORTANT A battery kept at below
50% of its capacity is damaged by sul-
phation, the capacity is reduced and start-
ing is difficult, there is also more possibili-
ty of freezing (this can occur at –10°C).
In the event of a prolonged stop, refer to
“Vehicle inactivity”.
USEFUL HINTS TO EXTEND
THE LIFE OF YOUR BATTERY
To avoid quickly draining the battery
and to preserve its operating conditions
over the course of time, carefully follow
the instructions below.
– The terminals must always be tight-
ened.
– As far as possible avoid keeping ser-
vices on for a long time with the engine
stopped (radio, hazard warning lights,
parking lights, etc.).
– When leaving the vehicle parked in a
garage, make sure that the doors, bon-
net, boot and interior lids are properly
shut to prevent lights from staying on.
The fluid contained in the
battery is poisonous and
corrosive. Avoid contact with the
skin or eyes. The battery should be
charged in a ventilated place away
from naked flames or possible
sources of sparks: danger of ex-
plosion and fire.
WARNING
Never attempt to charge
a frozen battery before
thawing it, the danger of explosion
exists. If it has frozen, always
check that the inside elements are
not broken (risk of short circuit)
and that the body is not cracked,
with the risk of acid coming out
which is poisonous and corrosive.
WARNING

223
– If electrical welding is to be carried
out on the body of the vehicle the elec-
tronic control units must be disconnected
or removed if the work involves the pro-
duction of high temperatures.The total absorption of these accessories
(standard and installed later) must be
0.6 mA x Ah (of the battery), as shown
in the table below:
BatteryMaximum permissible loadless absorption
100 Ah 60 mA
You are also reminded that services with
high current absorption activated by the
user, such as bottle warmers, vacuum
cleaners, cellular telephone, mini refriger-
ator, etc. accelerate the battery drainage
process if they are powered with the en-
gine not running.
IMPORTANT It should also be noted
that improper branches on connectors of
the electric wiring for installing additional
equipment is dangerous, particularly if
safety devices are involved.
ELECTRONIC
CONTROL UNITS
With normal use of the vehicle no par-
ticular precautions need to be taken.
If interventions are to be carried out on
the electrical system or emergency start-
ing the following must be heeded:
– Always switch off the engine before
disconnecting the battery from the electri-
cal system.
– If battery charging is necessary dis-
connect it from the electric system.
– When starting in an emergency only
an auxiliary battery must be used and not
a battery charger.
– Check that the polarity is correct and
that the connections between the battery
and the electrical system are sound.
– Before connecting or disconnecting
the terminals of the electronic units en-
sure that the ignition key is not in the
MARposition.
– Do not check for current in the cables
by short-circuiting the ends.
If additional systems are
to be installed on the ve-
hicle the danger of incorrectly tak-
ing branches from the electrical
wires cannot be emphasized too
strongly especially if devices es-
sential to the safety of the vehi-
cle and its occupants are involved
(ignition, injection, ABS ...). The in-
correct installation of radio sys-
tems, electronic theft alarms, ra-
diotelephones etc. can interfere
with the electronic control units and
compromises the warranty cover.
For these interventions we re-com-
mend that you contact Alfa Romeo
Authorized Services.The loadless
absorption of all the accessories in-
stalled in the after market must
not exceed 20 mA (reading with
the vehicle stationary).
WARNING

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

231
The following pages give the various specifications of the vehicle.
These pages will probably represent the main reference point in
this booklet for the “experts and enthusiasts”.
This section should be consulted in order to identify the main cha-
racteristics of your vehicle referred to in the previous chapters.IDENTIFICATION DATA...............................................................................page 232
ENGINE CODES-BODY VERSIONS
.....................................................................233
DIMENSIONS
...........................................................................................................234
ENGINE
......................................................................................................................235
SERVICING
................................................................................................................236
ENGINE OIL CONSUMPTION
..............................................................................236
LUGGAGE COMPARTMENT
..................................................................................237
WEIGHTS
...................................................................................................................237
FUEL SUPPLY - IGNITION
....................................................................................238
PERFORMANCE
.......................................................................................................239
FUEL CONSUMPTION
............................................................................................240
CO
2EMISSIONS......................................................................................................241
BRAKES
.....................................................................................................................241
STEERING
..................................................................................................................242
TRANSMISSION
.......................................................................................................242
FLUIDS AND LUBRICANTS
..................................................................................243
RIM AND TYRES
....................................................................................................245
TYRE INFLATION PRESSURE
...............................................................................247
RADIO FREQUENCY REMOTE CONTROL:
MINISTERIAL HOMOLOGATIONS
.....................................................................251
TECHNICAL SPECIFICATIONS

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

255
1Air ducts for side window outlets.
2Side air vents.
3Light switch lever (high beam, flash-
ing, direction indicators) and controls
for Cruise Control (automatically
keeping a set speed, if present).
4Instrument cluster.
5Outlets for windscreen.
6Upper outlet.
7Oddments compartment.
8Centre air vents.
9Passenger’s air bag.
10Manual passenger’s side Air bag
deactivation switch.
11Glove box.
12Boot opening button (in glove box).13Button for rearscreen defrosting,
door mirrors and resistances at base
of windscreen (if present).
14Button for windscreen/front side
windows and door mirrors
defrosting, rearscreen heating,
resistances at base of windscreen (if
present).
15Cigar lighter.
16Alfa Romeo I.C.S. (INTEGRATED
CONTROL SYSTEM): RDS radio,
computer on board (TRIP), climate
control, clock and outside/inside
temperature, GSM phone and
navigation system (if present).
17Buttons for central locking, fuel flap
opening, switching off the ASR
function of the VDC system switching
on the STR system (if present).
18Rear fog guard switch.
19Front fog light switch.
20Hazard warning light switch.21Inside temperature sensor.
22Windscreen wiper/washer control
lever and rain sensor (if present).
23Ignition switch (ignition device).
24Driver’s air bag and horn.
25Lever for releasing/locking adjustable
steering wheel.
26Instrument lighting adjustment.
27Headlamp aiming device control
(except versions with gas discharge
headlights).
28Outside lights switch.
29Bonnet opening lever.
30Front floor air outlets.

257
A -Speedometer
B -Mileage recorder with double meter
display (total and trip)
C -Check panel
D -Rev. counter
E -Fuel gauge and reserve warning light
F -Engine coolant temperature gauge
and maximum temperature warning
light
G -Warning lights
H -Electronic automatic gearbox display
IMPORTANT Depending on the trim
levels, the dial of the instruments may be
either light grey or black, with green or
red light.CONTROLS
LIGHTS SWITCH (fig. 3)
The device and services controlled by
the levers on the steering wheel can only
be activated when the ignition key is in
theMARposition (except the parking
lights which can always be switched on).Lights switched off
When the pointer on the knurled ring
(A) is opposite the symbol O, the exter-
nal lights are switched off.
Sidelights
The sidelights are switched on by turn-
ing the knurled ring (A) from Oto
6.
The
3warning light on the instru-
ment panel will come on at the same
time.
Dipped-beam headlights
These are switched on by turning the
knurled ring (A) from
6to2.
Parking lights
When the pointer of the switch (A) cor-
responds with the
Fsymbol, the side
lights stay on regardless of the position of
the ignition key.
fig. 3
A0D0148m