2010 Alfa Romeo 8C ECU

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4
D
E
BEFORE YOU DRIVE
There is a button on the front central dashboard
that activates door locking and unlocking:D - door locking/unlocking.
OPEN DOOR WARNING
LIGHTS
If the doors and the engine/luggage
compartment lids are not closed properly, this is
signalled by the illumination of relative symbols
on the instrument panel display, accompanied by
the messages “Door open” or “Doors open”.DOOR LOCK ECU
INITIALISATION
Every time the battery is reconnected or a
fuse replaced, you must perform the system
initialisation procedure to ensure proper system
operation. To perform this procedure, lock and
then unlock the doors using the door remote
control.DOOR COURTESY LIGHT
Each door has a courtesy light
E fitted on the
lower part of the door panel to light up the area
where you get into and out of the vehicle.
We suggest that you move the seat fully back
before getting out of the vehicle, which also
makes it easier to get back in.

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4
B
OPERATION
Each time the ignition key is removed from
position STOP the protection system activates
the engine immobilizer.
Upon starting the engine, when the key is turned
to MAR:
1) If the code is recognised, the CODE

warning light on the instrument panel turns
off in one second, while the EOBD
warning light turns off after about four
seconds, after the ECU has completed its
diagnostic cycle. The protection system has
recognised the key code and deactivates the
engine immobilizer. With the brake pedal
depressed, pushing the START button, the
engine starts.
2) If the CODE warning light remains on
and the EOBD warning light goes off
after four seconds (ECU diagnostics) and
illuminates again immediately afterwards,
the code has not been recognised and the
message “Electronic key not recognised”
is displayed. In this case, it is advisable to
turn the key back to position STOP and
then back to MAR; If the immobilizer stays
on, try with the other keys. If you are still FUEL TANK DOOR
EMERGENCY OPENING
If necessary, the fuel tank door can be opened
by pulling the cable
B housed in the luggage
compartment, in the beauty case compartment
KEYSTHE ALFA ROMEO CODE
SYSTEM
In order to enhance protection against thefts,
the vehicle is equipped with an electronic engine
immobilizer system (Alfa Romeo CODE), which
is automatically activated when the ignition key
is removed.
Each starter key contains an electronic device
which transmits a code signal to the Alfa Romeo
CODE control unit, and engine ignition is enabled
only if the key code is recognised by the system.
Two keys are provided with the vehicle.
The key is used to:
- start the engine
- activate the central door locking system
- deactivate/activate the passenger airbag
(on vehicles equipped with manual
deactivation system)
- open the rear window
- activate/deactivate the alarm system

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4
E
GF
H
BEFORE YOU DRIVE
ORDERING EXTRA
RADIO OPERATED
CONTROLS
To purchase new keys with radio control,
exclusively contact an Authorised Service
Centre of the Manufacturer’s Network,
bringing with you:
- all the keys with radio control in your
possession
- the CODE CARD of the Alfa Romeo CODE
system
- the electronic alarm system CODE CARD
- your identity card
- the identifi cation and registration documents
proving ownership of the vehicle. WARNING: The radio controls not handed over
for the new code storage procedure will be
automatically deactivated in order to prevent any
lost or stolen radio controls from being used to
deactivate the electronic alarm system.
REPLACING RADIO
OPERATED CONTROL
BATTERIES
If you press one of the three buttons and this
does not activate the corresponding feature,
before replacing the batteries, check the alarm
system features using the other remote control.
To replace the remote control battery:
- extract the key by pushing the button
E
- undo the screw
F
- extract the battery holder
G
- remove the battery
H from its retaining ring
- fi t a new battery of the same type,
observing the indicated polarity
- fi t the battery support G into the remote
control and secure it by tightening the screw
F.

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6
B
AB
F28
F22
F95
F93F15
F23
F8
MF1R6 R8 R9R28 R7R3
R15 R16 R14 R2
0 R20
L43
R4 R5
R2
MF2
MF3
MF4
MF5
MF85
F7 F10
F9 F11 F76F6 F21 F20 F19
F14 F18 F17 F91R24
F27 F66
F94 F24 F25
F16
L43
L44L44
FUSES AND RELAYS
IN THE ENGINE
COMPARTMENT
To access the fuses/relays, lift the engine
compartment lid and remove the cover
A by
undoing the four retaining screws
B.The fuses/relays are housed in 5 control boxes. The list of fuses and relays is shown in the
following pages.
WARNING: If you need to wash the engine
compartment, do not direct the jet of water for
too long directly on the engine compartment
ECU.

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IF YOU HAVE TO
TOW THE VEHICLE If you need to tow the vehicle, observe the
following recommendations:
- if possible, have the vehicle transported on
a vehicle equipped with loading platform
and specifi c for roadside assistance and
recovery.
If this is not possible:
- Tow the vehicle for a stretch of less than
100 km at a speed below 60 km/h, using
the towing hook provided in the toolkit.To be able to tow the vehicle, you must:
- Turn the ignition key to MAR without
starting the engine (see page 87)
- Engage neutral (position N) by
simultaneously pulling the gearshift paddles
UP and DOWN while holding the brake
pedal depressed (see page 118)
- turn the key back to position STOP.
CAUTION
Do not extract the key, as the
steering wheel will lock automatically
and you will be unable to steer the
wheels.
CAUTION
When towing the vehicle, make
sure that you observe the road traffic
regulations concerning both the towing
device and driving conduct.CAUTION
When towing the vehicle with
the engine off, remember that, without
the assistance of the brake servo, a
stronger effort is required on the brake
pedal for braking and on the steering
wheel for steering.
CAUTION
Screw down the towing hook
into its seat (approx. 11 turns).
Accurately clean the threaded seat
before tightening the hook.
WARNING: If you have to tow the vehicle with 2
wheels raised, ensure that the ignition key is in
the STOP position. Otherwise, when the VDC is
active, the relative ECU will store a malfunction,
which will cause the illumination of the warning
light
on the instrument panel display. This
requires the intervention of an Authorised
Service Centre of the Manufacturer’s Network
to correct the system malfunction.

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TECHNICAL SPECIFICATIONSENGINEGeneral
Type code AR8C
Cycle Otto
Cylinder number and position V 8 - 90°
Number of valves per cylinder 4
Bore and stroke mm 94x84.5
Total displacement cm3 4,691
Compression ratio 11.25±0.2
Maximum power (EC) kW 331
HP 450
corresponding RPM RPM 7,000
Maximum torque (EC) Nm 480
kgm 49
corresponding RPM RPM 4,750INJECTION – IGNITION
The ignition and injection system is controlled by
a single microprocessor ECU.
Injection
- Type Bosch Motronic ME7.1.1.
Ignition
- Static ignition
- Ignition sequence: 1-8-6-2-7-3-4-5
- Ignition coil:
ELDOR 78407003.C00
- Spark plugs: NGK PMR8C-H.
Battery
EXIDE 12V 88Ah 580A
Electric alternator
NIPPONDENSO SC2 150A

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MAINTENANCE
WARNING: If the battery charge remains
below 50% for a long period of time, it will be
damaged due to sulphating: this will reduce its
performance and starting power and the battery
will be more subject to freezing (this can happen
even at -10°C).We recommend that you have the battery charge
condition checked, preferably at the beginning of
the cold season, to prevent the electrolyte from
freezing.
This check should be performed more frequently
if the vehicle is used mainly for short trips or if it
is equipped with power absorbing devices that
remain permanently on even if when the ignition
key is removed. This applies above all if these
devices have been fitted “after market”.
If the vehicle is not used for long periods of time,
please refer to chapter “If the vehicle is laid up
for long periods”, in this section.WARNING: If additional systems have to be
fitted in the vehicle, there is the risk of creating
dangerous branches on the electric wiring, in
particular if the safety devices are involved.
ELECTRONIC
CONTROL UNITSNo special precautions are required for the
normal use of the vehicle.
In the event of repairs to the electrical system
or in an emergency starting, the following
instructions must be strictly followed:
- Never disconnect the battery from the
electrical system when the engine is
running.
- Disconnect the battery from the electrical
system when recharging it (see page 168
“If the battery is fl at”). WARNING: When the battery is disconnected,
you must first detach the negative pole terminal
(–) and then the positive pole one (+).
WARNING: The battery is secured inside the
vehicle by means of a metal box, therefore, be
extremely careful not to let the battery charger
clips come into contact with it.WARNING: When the battery is reconnected,
you must first attach the positive pole (+),
remembering to cover it with the cap provided,
and then the negative one (–).
- Never perform the emergency starting
procedure using a battery charger: always
use an auxiliary battery.
- Take special care when connecting the
battery to the electrical system, checking
both that polarity is correct and that the
connection is properly working.
- Do not connect or disconnect the terminals
of the ECUs when the ignition key is at
MAR.
- Do not check the electric polarities through
sparking.
- Disconnect the ECUs in the event of
electrical welding on the vehicle body.
Remove them if the temperature is
over 80°C (special interventions on the
bodywork, etc.).

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WARNING: Incorrect installation or modifications
to the audio and alarm systems may interfere
with the proper operation of the Electronic
Control Units.
WARNING: Changes or repairs to the electrical
system carried out in an incorrect manner
or without taking into account the technical
specifications of the system may cause operating
malfunctions with the risk of fire.
WARNING: If you need to wash the engine
compartment, do not direct the jet of water for
too long directly on the engine compartment
ECU.
SPARK PLUGSIt is essential that the spark plugs are sound and
clean to help ensure engine performance and to
keep polluting emissions to a minimum level.WARNING: The spark plugs must be changed
at the intervals specified in the Maintenance
Schedule. Only use the recommended spark
plugs: faults may arise if the heat rating is
unsuitable, or if the specified duration is not
guaranteed.
WHEELS AND
TYRESTo obtain the best performances and
the longest tyre life, comply with the
following precautions during the first
500 Km:
- do not drive at maximum
permitted speed
- drive on curves at low speed
- avoid sudden steering
- avoid sudden braking
- avoid sudden accelerations
- do not drive long at high speeds
for too long.