engine Alfa Romeo 156 2006 Owner handbook (in English)

1
Dear Client,
Thank you for choosing Alfa Romeo.
Your Alfa 156has been designed to guarantee the safety, comfort and driving pleasure typical of Alfa Romeo.
This booklet will help you to get to know the characteristics and operation of your car.
The following pages contain all the indications necessary for you to be able to maintain the high standards of performance, quality, safety and
respect for the environment which characterize this Alfa 156.
The Warranty Booklet also contains the regulations, the warranty certificate and a guide to the services offered by Alfa Romeo.
Services which are essential and precious because, when you purchase an Alfa Romeo you are not only acquiring a car, but the tranquility that
comes from knowing that an efficient, willing and widespread organization is at your service for any assistance problems you may have.
Whats more every single component of the Alfa 156is fully recyclable. At the end of your car’s useful lifespan any Alfa Romeo dealer
would be pleased to make arrangements for you car to be recycled (in compliance with current regulations in force).
Nature benefits in two ways: there’s no pollution from waste disposal, and the demand for raw materials is reduced.
Have a good trip.
This booklet describes all the versions of the Alfa 156, so you should only consider the information concerning
the trim level, engine and version purchased by you.

2
MUST BE READ!REFUELLING
Petrol engines:only refuel with unleaded petrol with octane rating (RON) no less than 95.
Diesel engines:only refuel with diesel fuel conforming to the European specification EN590.
K
ENGINE START-UP
Petrol engines with mechanical transmission:make sure the handbrake is pulled; put the gear lever into neutral;
press the clutch pedal down to the floor without touching the accelerator, then turn the ignition key to AV Vand release it as
soon as the engine starts.
Petrol engines with Selespeed transmission or Q-System:keep the brake pedal fully depressed; turn the igni-
tion key to AV Vand release it as soon as the engine has started; the transmission sets to neutral automatically (the display
shows position N).
Diesel engines:Turn the ignition key to MARand wait for the
Y
and
m
warning lights to go off; turn the ignition
key to AV Vand release it as soon as the engine starts.
PARKING OVER FLAMMABLE MATERIAL
While functioning normally, the catalytic converter reaches high temperatures. For this reason do not park the car over in-
flammable material, grass, dry leaves, pine needles, etc.: fire hazard.


GETTING TO KNOW YOUR CAR6
ALFA ROMEO
CODE SYSTEMTo increase protection against attempted
theft, the car is fitted with an electronic en-
gine lock system (Alfa Romeo CODE) which
is activated automatically when the ignition
key is removed. In fact the grip of each key
contains an electronic device which modu-
lates the radio frequency signal transmit-
ted when the engine is started by a special
aerial incorporated in the ignition switch. This
modulated signal is the “password” by
which the control unit recognises the key
and only in this condition can the engine
be started.
THE KEYSThe car is delivered with two keys, key
(A-fig.1) with metal insert and remote
control function and another key with metal
insert only, without remote control.
The key remote control operates:
– door centralised opening/locking
– opening luggage compartment boot/
tailgate
– activation/deactivation of electronic
alarm (if existing)
G G
E E
T T
T T
I I
N N
G G

T T
O O

K K
N N
O O
W W

Y Y
O O
U U
R R

C C
A A
R R
SYMBOLSSpecial coloured labels have been attached
near to or actually on some of the compo-
nents making up your Alfa 156.
These labels bear symbols that remind you
of the precautions to be taken as regards
that particular component.
fig. 1
A0B0016m

GETTING TO KNOW YOUR CAR9
OPERATION
(fig. 4)
Each time the ignition key is turned to
STOPposition, the Alfa Romeo CODE sys-
tem deactivates the functions of the engine
electronic control unit.
Each time the engine is started, turning the
key to the MARposition, the control unit
of the Alfa Romeo CODE system sends a
recognition code to the engine control unit
to deactivate the inhibition of the functions.
The recognition code, which is crypted and
variable between over 4 billion combina-
tions, is only sent if the system control unit
has recognised the code sent to it by the
key, which contains an electronic transmit-
ter, through an aerial in the ignition switch.This condition is indicated by a brief flash
of the warning light (A) on the check panel.
If the code has not been recognised cor-
rectly, the warning light (A) stays on to-
gether with the warning light (B).
In this case, you are recommended to re-
turn the key to the STOPposition and then
back to MAR; if the inhibition persists, try
again possibly with the other key provided
with the car. If it is still impossible to start
the car carry out the emergency starting pro-
cedure described in section “In an emer-
gency” and turn to an Alfa Romeo Autho-
rized Service.
WARNINGEvery electronic key has its
own code, which must be memorised by the
system control unit. To memorise new keys,
up to a maximum of eight, apply solely to
Alfa Romeo Authorized Services taking with
you all the keys in your possession, the
CODE card, a personal identity document
and the car’s possession documents.
fig. 4
A0B0599m
The codes of the keys not
provided during the new
memorising procedure are
erased from the memory. This is to
ensure that any lost or stolen keys
can no longer be used to start the
car.
WARNINGThe Alfa Romeo CODE
Y
warning light comes on when travelling with
the ignition key on MAR:
1)If the warning lamp lights up while the
car is moving, it means that the system is
running a self-diagnosis (e.g. due to a volt-
age drop). The first time you stop you can
test the system as follows: switch the en-
gine off by turning the ignition key to
STOP; then turn the key back to MAR:
the warning lamp will light up and should
go out in the space of about one second. If
the warning lamp fails to go out, leave the
key at STOPfor more than 30 seconds and
repeat the procedure described previously.
If the problem persists, contact your Alfa
Romeo Authorized Service.

GETTING TO KNOW YOUR CAR11
To change the battery (fig. 7):
– move the metal insert (A) to the un-
locking position;
– turn the pin (B), taking the reference
mark (dot) of the cut to the UNLOCKpo-
sition (2);
– working on the notch (C) remove the
battery holder (D);
– change the battery (E) putting it in the
position shown on the holder;
– insert the holder back in the key and
lock it, turning the reference mark of the pin
(B) to the LOCKposition (1).
ELECTRONIC ALARM(optional for versions/markets
where applicable)DESCRIPTIONThe system comprises: transmitter, re-
ceiver, control unit with siren and volumet-
ric sensors and anti-lift sensor. The electronic
alarm is controlled by a receiver inside the
car and it is turned on and off through the
remote control incorporated in the key which
sends the crypted and variable code. The
electronic alarm monitors: unlawful opening
of the doors, bonnet and boot (perimetral
protection), operation of the ignition key,
battery and emergency key cable cutting,
the presence of moving bodies (volumetric
protection), any abnormal raising/sloping
of the car (for versions/markets where ap-
plicable) and operates the central door lock-
ing system. It also makes it possible to cut
off the volumetric protection.
WARNINGThe engine inhibitor function
is guaranteed by the Alfa Romeo CODE sys-
tem which is activated automatically when
the ignition key is removed.
fig. 7
A0B0047m
REMOTE CONTROL
(fig. 8)
The remote control is built into the key and
it is fitted with a button for activating the
alarm (B-fig.8)
fig. 8
A0B9000m

GETTING TO KNOW YOUR CAR14
AUTOMATIC ENGAGEMENT
OF THE ALARM (optional for versions/markets
where applicable)
If the alarm has not been engaged with
the remote control it will come on auto-
matically after an established time of 30
seconds from the moment that the ignition
key has been turned to the STOPor
PARKpositions and a door or the boot has
been opened and then closed again. This
condition is shown by the intermittent illu-
mination of the led in the car and by the sig-
nalling described previously.
To deactivate the alarm press the button
on the remote control.
The alarm is also automatically engaged
when the doors are closed using the key.
When the alarm is engaged automatically
the doors are not locked.
WHEN THE ALARM
IS TRIGGEREDWhen the alarm is engaged it will sound
when:
– one of the doors, the bonnet or the tail-
gate is opened;
– the battery is disconnected or the elec-
tric cables are cut, or the emergency key ca-
bles are cut;
– intrusion into the passenger compart-
ment, e.g. window being broken (volumetric
protection);
– attempt to start the engine (key at
MAR);
– abnormal car raising/sloping (for ver-
sions/markets where applicable).
Depending on the markets, the triggering
of the alarm will activate the siren and the
hazard warning lights (for about 26 sec-
onds). The methods of operation and the
number of cycles may vary depending on
the versions/markets.
However a maximum number of cycles is
foreseen.
Once the alarm cycle has come to an end,
the system will return to its normal moni-
toring state.
INTERRUPTING THE ALARMTo interrupt the alarm press the button on
the remote control or, if the remote control
battery is down, get into the car, insert the
key into the ignition switch and turn the key
to MAR.
WARNINGIf it is necessary for the ve-
hicle to lie inactive for long periods (over 3
weeks), close the vehicle using the key to
deactivate the alarm.

GETTING TO KNOW YOUR CAR17
IGNITION DEVICE THE SWITCH
(fig. 12)
The key can be moved to one of four po-
sitions:
– STOP: engine switched off, key can be
removed, engine lock engaged, steering lock
engaged, all services excluded apart from
those powered directly (e.g. hazard warn-
ing lights).
– MAR: drive position. The engine lock
is deactivated and all electrical devices are
powered.
WARNINGNever leave the key in this
position when the engine is stationary.– AV V: unstable position for starting the
engine.
WARNINGIf the engine does not start,
return the ignition key to the STOPposi-
tion and repeat the sequence.
The ignition block is fitted with a safety de-
vice preventing it from being moved to the
AV Vposition when the engine is already
running.
– PARK: engine switched off, key can
be removed, engine lock engaged, steer-
ing lock engaged, sidelights automatically
switched on.
WARNINGTo turn the key to the
PARKposition, button (A) located on the
switch should be pressed first.If the ignition device is
tampered with (for exam-
ple during an attempted
break-in) have it checked over by
Alfa Romeo Authorized Services,
before travelling again.
fig. 12
A0B0610m
When leaving the car al-
ways remove the key from
the ignition to prevent any pas-
senger in the car from inadver-
tently activating the controls.
Never leave children unattended in
the car. Remember to engage the
handbrake and if the car is facing
uphill, first gear and if the car is
facing downhill, reverse.
WARNING

GETTING TO KNOW YOUR CAR44
MANUAL DEACTIVATION OF
PASSENGER’S FRONT AIR BAGShould it be absolutely necessary to carry
a child on the front seat, the passenger’s
front air bag can be deactivated.
Deactivation/reactivation takes place with
ignition key at STOPand operating it in the
special key switch on the right-hand side of
the dashboard (fig. 67). Access to the
switch is only possible with the door open.The key switch (fig. 67) has two posi-
tions:
1) Passenger’s front Air bag active: (ON
position
P) warning light on check panel
off; it is absolutely prohibited to carry chil-
dren on the front seat.
2) Passenger’s front Air bag deactivated:
(OFFposition
F
) warning light
F
on
check panel on; it is possible to carry chil-
dren protected by special restraint systems
on the front seat.
The warning light
F
on the check panel
glows steadily until the passenger’s Air bag
is reactivated.
Deactivation of the front passenger’s air
bag does not prevent operation of the side
Air bags.
With the door open the key can be inserted
and removed in both positions.
SIDE AIR BAGS
(SIDE BAG - WINDOW BAG)The side bag and window bag have the
task of increasing protection of the occu-
pants in the event of a side crash of medium-
high severity.
They are formed of an instantaneously-in-
flating cushion:
– the side bag is housed in the back rest
of the front seats; with this solution it is al-
ways possible to have the cushion in the op-
timum position in relation to the passenger,
regardless of the adjustment of the seat;
– the window bags, which are “curtain”
cushions, are housed in the side roof lining
covered by a special trim, which makes it
possible to extend the cushion downwards.
This solution, designed to protect the head,
makes it possible to offer the highest degree
of protection to the front and rear occupants
in the event of side crash, thanks to the wide
cushion inflation surface.
In the event of a side crash, an electronic
control unit processes the signals leading
from a deceleration sensor and activates,
when necessary, inflation of the bags.
fig. 67
A0B0583m
Use the switch only with
the engine off and the ig-
nition key removed.
WARNING

GETTING TO KNOW YOUR CAR51
“INTELLIGENT WASHING” FUNCTION
Pulling the lever towards the steering
wheel (fig. 76) (unstable position) oper-
ates the windscreen washer.
Keeping the lever pulled, with only one
movement it is possible to operate the
washer jet and the wiper at the same time;
indeed, the latter comes into action auto-
matically if the lever is pulled for more than
half a second.
The wiper stops working a few strokes af-
ter releasing the lever; a further “cleaning
stroke” after a few seconds completes the
wiping operation.Rain sensor
(for versions/markets where
applicable) (fig. 77)
The rain sensor (A), fitted only on cer-
tain versions, is an electronic device com-
bine with the windscreen wiper which has
the purpose of automatically adjusting the
number of wipes during intermittent opera-
tion, to intensity of the rain.
All the other functions controlled by the
right-hand lever remain unchanged.
The rain sensor is activated automatically
moving the right-hand lever to position (B-
fig. 74) and it has a range of adjustment
that gradually varies between wiper sta-
tionary (no wiping) when the windscreen is
dry, to wiper at first continuous speed (con-
tinuous, slow) with heavy rain.Turn ring (F-fig. 75) to set the rain sen-
sor sensitivity level:
■■
= low sensitivity
■■■
= medium ensitivity
■■■■
= high sensitivity.
Operating the windscreen washer with the
rain sensor activated (lever at position B)
the normal washing cycle is performed at
the end of which the rain sensor resumes its
normal automatic function.
Turning the ignition key to STOPthe rain
sensor is deactivated and the next time the
engine is started (MAR position) it will not
be reactivated even if the lever has remained
in position (B). In this case to activate the
rain sensor, simply move the lever to (A)
or (C) and then back to (B).
fig. 76
A0B0374m
fig. 77
A0B0012m

GETTING TO KNOW YOUR CAR53
CRUISE CONTROL(optional for versions/
markets where applicable)
GENERALThe speed regulator (CRUISE CON-
TROL), with electronic control, makes it
possible to drive the car at the required
speed without pressing the accelerator
pedal. This reduces driving fatigue on mo-
torways, especially during long journeys be-
cause the speed memorised is automatically
maintained.
WARNINGThe device can only be en-
gaged at speeds between 30 and 190
km/h.
The device may only be engaged in the
4th, 5
thor 6
thgear. Travelling downhill with
the device engaged, the car speed may in-
crease more than the memorised one, due
to the change in the engine load.The device is disengaged automatically in
any one of the following cases:
– pressing the brake pedal;
– pressing the clutch pedal;
– if the VDC, ASR system cuts in;
– with Selespeed or Q-System transmis-
sion if a gear is changed;
– if car speed is below the set limit.
CONTROLS
(fig. 79)
Cruise Control is controlled by the
ON/OFFknurled ring (A), by the +/-
ring (B) and by the RCLbutton (C).
Ring (A) has two positions:
– OFF: in this position the device is de-
activated;
– ON: is the normal operating position of
the device: the warning light
Ü
on the check
panel turns on.
Ring (B) serves for memorising and main-
taining the car speed or for increasing or low-
ering the speed memorised.
Turn the ring (B) to (+) to memorise the
speed reached or increase the speed mem-
orised.
fig. 79
A0B0055m