2007 Alfa Romeo 156 engine

GETTING TO KNOW YOUR CAR61
A0B0597m
fig. 83a - JTD versions
A.Speedometer (mileage recorder) - B. Odometer with double counter (total and partial) display -C. Check panel - D.Rev counter - E.
Fuel level gauge with reserve warning light - F.Clock - G.Engine coolant temperature gauge with maximum temperature warning light - H.
Warning lights.
´
- Warning light fitted
for versions/markets
where applicable

GETTING TO KNOW YOUR CAR62
REV COUNTERThe rev. counter shows engine rpm. The
needle pointed to the danger area (red) in-
dicates excessive high engine speed. Do not
drive for long periods with the needle in this
area.
WARNINGThe electronic injection con-
trol system gradually shuts off the flow of
fuel when the engine is “over-revving” re-
sulting in a gradual loss of engine power.
The rev counter may, when the engine is
idling, indicate gradual or sudden increase
of engine revs as the case may be; such be-
haviour is normal and must not be inter-
preted as a faulty condition as it occurs dur-
ing normal operation, for instance when
climate control or electric fan are switched
on. In particular, slow revs variation helps
keep the battery charged.
FUEL GAUGE AND RESERVE
WARNING LIGHTThis shows the amount of fuel left in the
fuel tank.
This warning light
ç
comes on to indicate
that approximately 7 litres of fuel are left in
the tank.
WARNINGUnder certain conditions
(heavy slopes, for instance), the reading on
the gauge may differ from the actual
amount of fuel in the tank and changes in
level may be indicated late.
This condition falls within the operation log-
ics of the electronic control circuit to avoid
highly unstable readings due to swaying of
the fuel when travelling.
WARNINGRefuelling shall always be
performed with engine off and ignition key
to STOP. If the engine is off but the key
is to MAR, a wrong fuel level could tem-
porarily be indicated. This is due to the in-
ternal system control logic and cannot be
considered as a system malfunctioning.
ENGINE COOLANT
TEMPERATURE GAUGE AND
MAXIMUM TEMPERATURE
WARNING LIGHTThis shows the temperature of the engine
coolant fluid and begins when the fluid tem-
perature exceeds approx. 50°C.
The pointer should normally be towards
the middle of the scale. If the pointer
reaches the higher temperature values of
the scale (red area), the request for vehi-
cle performance should be decreased.
The illumination of the warning light
ç
(together with the message shown by the
Infocenter display) indicates an excessive
temperature of the engine cooling fluid. In
this case, stop the car and contact Alfa
Romeo Authorized Services.
WARNINGThe temperature of the en-
gine coolant may rise towards the maximum
values (red) when the vehicle is driven at
low speeds, especially when the ambient air
temperature is high. In this case, the vehi-
cle should be stopped and the engine
switched off for a few minutes after which
the journey can be resumed, preferably at
a higher speed.

GETTING TO KNOW YOUR CAR64
INFOCENTER DISPLAY(where required)The Infocenter display is able to display all
the useful and necessary information during
driving, in particular:
INFORMATION AVAILABLE ON STANDARD
SCREEN
– Date (A-fig. 87)
– Outside temperature (B)
– Failure and warning symbol (e.g.: pos-
sible presence of ice on the road C).The standard screen will remain on until
a function is activated which requires be-
ing shown on the display (e.g. “Infocenter
display rheostat lights adjustment”).
INFORMATION ABOUT VEHICLE
CONDITION (for each event)
– Scheduled maintenance programme ex-
piry
– Trip computer information
– Rheostat brightness adjustment
– Engine oil level (only JTD versions).
Moreover, a menu is available which al-
lows the driver to perform, by operating the
control buttons (see “Control buttons” in the
next pages) the following controls and set-
tings:Set-up menu
SPEED LIMIT
– Switching on/off the relevant signal
(ON/OFF)
– Speed limit setting
TRIP B ON/OFF
– Switching on/off the relevant function
(ON/OFF)
DATE SETTING/TIME SETTING
– Day setting
– Month setting
– Year setting
– Hour setting
– Minute setting
LANGUAGE SELECTION
– Setting the language for the messages
shown on the displayfig. 87
A0B2126g

GETTING TO KNOW YOUR CAR68
If the display shows an anomaly message, see paragraph
“Warning lights and indications” in this chapter.
INITIAL CHECK
By turning the ignition key to the MARposition, the Infocenter display will show the message CHECK ACTIVE: this indicates the start of the
diagnosis phase for all the electronic systems available on the vehicle; this phase lasts a few seconds (in diesel versions only, the Infocenter
display is able to provide the engine oil level indication too, see following paragraph “Engine oil level check”). If, during this phase, no anom-
aly is found and after the engine has been started, the display will show the message CHECK OK.
Standard screen display
JTD versions only
If no
failures
are
present
Is the
engine
started?
YES
NO
or
continues on next page

GETTING TO KNOW YOUR CAR70
Engine oil level check
(JTD versions only)
By turning the ignition key to the MAR
position, the Infocenter display will show the
engine oil level display for about 3 seconds.
During this phase, to clear the display and
move to the following screen, press
ç
.
WARNINGTo ensure correct reading of
the engine oil level, the check must be car-
ried out with the vehicle on level ground.The following display in fig. 90refers to
correct engine oil level. As the oil level grad-
ually falls, the full bars go off leaving room
for the empty bars.
fig. 90
A0B2129g
fig. 91
A0B2134g
fig. 92
A0B2135g
The following fig. 91andfig. 92re-
fer to the display with an oil level below the
foreseen minimum. Under this condition, the
bars are all empty with symbol and warn-
ing messages.

GETTING TO KNOW YOUR CAR71
The following refers to the display
(fig. 93) (appearing for about 3 seconds)
with an oil level above the foreseen maxi-
mum. Under this condition the bars are all
full.fig. 93
A0B2136g
Contact Alfa Romeo Au-
thorized Services to have
the engine oil restored to
its correct level.
Restore correct engine oil
level (see paragraph
“Checking fluid levels” in
chapter “Car maintenance”).Do not add oil with dif-
ferent characteristics from
those of the oil already
used in the engine (see “Fluids and
lubricants” in chapter “Car main-
tenance”).

GETTING TO KNOW YOUR CAR87
GENERAL TRIP - TRIP BThe TRIP COMPUTER function gives information relating to the operating status of the vehicle on the Infocenter display. This function comprises
the GENERAL TRIP concerning the complete mission of the car and TRIP B concerning the partial car mission. This function (as shown in the
graph below) is contained within the complete mission. Both functions are resettable.
The GENERAL TRIP displays the figures relating to
RANGE
, TRAVEL DISTANCE
, AVERAGE CONSUMPTION
, ACTUAL CONSUMPTION
, AVERAGE VELOCITY
, TRAVELTIME
(com-
plete mission time).
The TRIP B (with automatic reset each time at least 2 hours have passed since stopping the engine), displays information concerning TRAVEL
DISTANCE B
, AVERAGE CONSUMPTION B
, AVERAGE SPEED B
, TRAVEL TIME B
(partial mission time).
Start of journey procedure (reset)
To start a new journey monitored by the GENERAL TRIP, with the ignition key at MAR, press the button
ã
with
å
(see “Control buttons”).
The reset operation (pressing the
å
button) in the presence of the screens concerning the GENERAL TRIP also makes it possible to reset
TRIP B. The reset operation (pressing the å
button) in the presence of only the screens concerning TRIP B makes it possible to reset only the
information associated with this function.
WARNINGThe
RANGE
and
ACTUAL CONSUMPTION
information cannot be reset.
Reset TRIP B
End of partial mission
Start of new partial mission
˙
Reset TRIP B
End of partial mission
Start of new partial mission
˙
˙
Reset TRIP B
˙
˙
˙
TRIP B
TRIP B
TRIP B
End of partial mission
Start of new partial missionReset TRIP B
End of partial mission
Start of new partial mission
GENERAL TRIP
Reset GENERAL TRIP
End of complete mission
Start of new mission
˙
Reset GENERAL TRIP
End of complete mission
Start of new mission
˙

GETTING TO KNOW YOUR CAR91
RANGE= This shows the distance (in km or miles) the car can still cover before needing fuel if keeping the same driving conditions. The
display will show “- - - -“ after the following events:
A)range values lower than 50 km (approx. 31 miles) (after the reduced range warning message),
B)Parking with running engine or car speed lower than 4 km/h for over 5 minutes.
TRAVEL DISTANCE= This shows the distance traveled by the car from the start of the new mission (*).
AVERAGE CONSUMPTION= This shows the average actual consumption in l/km or in l/100 km depending on the unit selected.
ACTUAL CONSUMPTION= This shows the consumption of the car updated every 5 sec. approx. If parking with running engine or in
case of speed values lower than 4 km/h the display will show “- - - -“. Actual consumption calculation algorithm, according to the above pro-
cedure, restarts as soon as the car speed will be equal to or higher than 4 km/h.
AVERAGE VELOCITY= This shows the average speed of the car as a function of the overall travel time elapsed from the start of the
new mission (*).
TRAVELTIME= time elapsed from the start of the new mission (*).
(*) NEW MISSION: this takes place when performing the “manual” reset by pressing the dedicated button.
WARNINGGENERAL TRIP is reset automatically when the Distance Traveled is equal to 9999,9 km (or mi), when Travel Time is 99:59
(99 hours and 59 minutes) or after reconnecting the battery.
WARNINGIf no information is available, all the TRIP COMPUTER parameters display the message “****” instead of a value, together
with the typical description of each parameter. When the normal operation condition is resumed, the count of the various parameters starts
again normally, with no reset of the values displayed prior to the failure, nor the start of a new mission.