engine Alfa Romeo 159 2005 Owner handbook (in English)

101
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
Improper bonnet closing is indicated (on
certain versions) by the instrument pan-
el warning light
´(where provided), or
by symbol
Sand a message on the
display (see section “Warning lights and
messages”).
IMPORTANTAlways check that the
bonnet is closed properly to avoid its
opening while the car is travelling.
BONNET
TO OPEN THE BONNET
Proceed as follows:
❒pull lever A-fig. 97until hearing
the releasing click;
❒pull leverB-fig. 98and raise the
bonnet keeping the lever pulled
IMPORTANTBonnet raising is aided
by two gas springs. Do not tamper with
these springs and guide the bonnet
while raising it.
IMPORTANT Before opening the bon-
net, check that windscreen wiper arms
are not lifted from the windscreen.A0E0122mfig. 97
A0E0158mfig. 98
TO CLOSE THE BONNET
Lower the bonnet at approx. 20 cen-
timetres from the engine compartment
and then let it drop, ensuring that it is
fully closed and not just held in position
by the safety catch. If the bonnet does
not close properly, do not push it down
but open it again and repeat the above
procedure.
Carry out operations
only when the car is
stationary.
WARNING
For safety reasons the
bonnet must be closed
properly to avoid its opening
while the car is travelling.
Therefore, always check it is
properly closed and the catch
engaged. Should you notice
that the catch is not perfectly
engaged when travelling, stop
the car immediately and close
the bonnet.
WARNING

106
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
VDC SYSTEM
(Vehicle Dynamics
Control)
(where provided)
The VDC system is an electronic system
controlling the car stability in the event
of tyre grip loss.
The VDC system is therefore particular-
ly useful when grip conditions of the
road surfaces changes.
VDC SYSTEM
INTERVENTION
It is signalled by the blinking of the
warning light
áon the instrument pan-
el, to inform the driver that the car is
in critical stability and grip conditions.
TURNING THE VDC SYSTEM
ON/OFF
The VDC system is automatically acti-
vated when the engine is started. When
travelling, to turn the VDC off press the
ASR/ VDC button on the central console
fig. 102for 2 seconds. Turning off the
VDC will also turn off the ASR. Both func-
tions can be reactivated by pressing the
ASR/VDC button.
VDC system deactivation is indicated
by the instrument panel warning light
á(on certain versions a symbol is dis-
played) and by the circular led around
the ASR/VDC button.
If the VDC has been turned off when
travelling, at next engine start-up it will
turn on again automatically.
FAILURE WARNING LIGHTS
In the event of failure, the VDC system
is automatically disconnected and the
warning light
ácomes on with fixed
light on the instrument panel (on cer-
tain versions together with a message
on the display) (see section “Warning
lights and messages”). In this case con-
tact Alfa Romeo Authorized Services as
soon as possible.
A0E0026mfig. 102

Failure warnings
System failure is indicated by the turn-
ing on of warning light
*(where pro-
vided) on the instrument panel (on cer-
tain versions together with the dedicat-
ed message on the display) (see section
“Warning lights and messages”).
IMPORTANTThe Hill Holder system
is not a parking brake. Never get out
of the car without engaging the hand-
brake, switching the engine off and en-
gaging the first gear.
ASR SYSTEM
(AntiSlip Regulation)
This system is an integral part of the VDC
system, it controls car drive and cuts in
automatically every time one or both dri-
ving wheels slip.
According to slipping conditions, two dif-
ferent control systems are activated:
❒ if slipping involves both driving
wheels, the ASR function intervenes
reducing the power transmitted by
the engine;
❒if slipping involves only one driving
wheel, the ASR system cuts in auto-
matically braking the wheel that is
slipping. This time elapsing without starting, the
system will deactivate automatically by
releasing gradually the brake force.
At releasing, the typical brake disen-
gagement noise indicating that the car
is going to move will be heard.
108
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS

109
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
The performance of the
system, in terms of ac-
tive safety should not induce
the driver to take pointless
and unnecessary risks. The
style of driving must in any
case always be adapted to the
conditions of the road surface,
visibility an traffic. Road safe-
ty is always the driver’s re-
sponsibility.
WARNINGThe action of the ASR is particularly help-
ful in the following circumstances:
❒slipping of the inner wheel due to the
effect of dynamic load changes or ex-
cessive acceleration;
❒ too much power transmitted to the
wheels also in relation to the condi-
tions of the road surface;
❒ acceleration on slippery, snowy or
frozen surfaces;
❒in the case of loss of grip on a wet
surface (aquaplaning).Switching the ASR system
on/off
ASR turns on automatically when turn-
ing the instrument panel on.
When travelling the ASR can be
switched off by pressing briefly the
ASR/VDC button on the central console.
When the ASR is switched off this is
shown by the lighting up of the
ASR/VDC button led (on versions fitted
with “Reconfigurable multifunction dis-
play” symbol Vwill also be dis-
played).
If the ASR is switched off when travel-
ling, it will turn on again automatically
the next time the engine is started.
When travelling on snowy roads with
snow chains, it may be helpful to turn
the ASR off: in fact, in these conditions,
slipping of the driving wheels when mov-
ing off makes it possible to obtain bet-
ter drive.

Failure warnings
In the event of malfunctioning, the ASR
system is automatically disconnected
and on versions fitted with “Reconfig-
urable multifunction display” symbol
Vis displayed. In this case contact Al-
fa Romeo Authorized Services as soon
as possible.
110
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
MSR system (engine braking
torque control)
It is an integral part of the ASR system
that in case of sudden gear shifting, cuts
in providing torque to the engine thus
preventing excessive driving wheel dri-
ve that, specially in poor grip conditions,
can lead to loss of stability.
For correct operation of
the ASR system, the
tyres must absolutely be of
the same brand and type on all
wheels, in normal conditions of
use, at the proper inflation
pressure values and, above all,
of type, brand and size speci-
fied (see paragraph “Wheels”
in section “Technical Specifica-
tions”).
WARNING

111
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
111
EOBD SYSTEM
The EOBD system (European On Board
Diagnosis) allows continuous diagnosis
of the components of the car correlat-
ed with emissions.
It also alerts the driver, by turning on the
warning light
Uon the instrument pan-
el (on certain versions together with the
message on the display) (see section
“Warning lights and messages”), when
these conditions are no longer in peak
conditions.
The objective is:
❒ to keep system efficiency under con-
trol;
❒ to warn when a fault causes emission
levels to increase;
❒to warn of the need to replace dete-
riorated components.
If when fitting the key
into the ignition device,
the warning light
U
does not turn on or if, while
travelling it turns on glowing
steadily or flashing, contact Al-
fa Romeo Authorized Services
as soon as possible. Warning
light
Uoperation can be
checked by means of special
equipment by traffic agents. Al-
ways comply with the traffic
regulations in force in the coun-
try where you are travelling.
The system also has a diagnostic con-
nector that can be interfaced with ap-
propriate tools, which makes it possible
to read the error codes stored in the con-
trol unit, together with a series of spe-
cific parameters for engine operation
and diagnosis. This check can also be
carried out by the traffic police.
IMPORTANTAfter eliminating the in-
convenience, to check the system com-
pletely, Alfa Romeo Authorized Services
are obliged to run a bench test and, if
necessary, road tests which may also
call for a long journey.

117
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
If a failure is indicated, stop the car, turn
the engine off and then clean the sen-
sors. Make sure to be far from possible
ultrasound sources (e.g.: truck pneu-
matic brakes or pneumatic hammers).
If failure cause has been eliminated the
system will resume regular operation
and warning
tand the corresponding
warning message will turn off.
If the warning light stays on, contact Al-
fa Romeo Authorized Services to have
the system inspected, although the sys-
tem keeps on working. If the failure de-
tected does not impair system operation,
the system keeps on working and fail-
ure is stored in order to be then detect-
ed by Alfa Romeo Authorized Services
at next inspection.
GENERAL WARNINGS
When parking, take the utmost care to
obstacles that may be set above or un-
der the sensors. Objects set close to the
car front or rear part, under certain cir-
cumstances are not detected and could
therefore cause damages to the car or
be damaged.
Indications sent by the sensors can be
altered by dirt, snow or ice deposited on
the sensors or by ultrasound systems
(e.g.: truck pneumatic brakes or pneu-
matic hammers) set nearby the car.
TOWING TRAILERS
Rear sensors are reactivated automati-
cally when removing the trailer cable
plug.
FAILURE INDICATIONS
The system control unit checks every
system component each time the key is
fitted into the ignition device. Sensors
and relevant electrical connections are
then constantly monitored during sys-
tem operation.
Sensor failure is indicated by turning on
of warning light
t(where provided)
on the instrument panel (on certain ver-
sions together with the message on the
display) (see section “Warning lights
and messages”).
Rear sensors operation
is deactivated automat-
ically when the trailer
electric cable plug is fitted into
the car tow hook socket.

118
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
The car can be equipped with the
T.P.M.S. (Tyre Pressure Monitoring Sys-
tem). This system consists of a radio-fre-
quency sensor, installed on each wheel
(on the rim inside the tyre) that sends
pressure information to the control unit.IMPORTANT NOTES
Failure indications will not be stored and
therefore will not be displayed when
turning the engine off and on again. If
failure persists, the control unit will send
warning indications to the instrument
panel only after a few seconds when the
car is moving.
Tyre pressure should be checked with
tyres cold. Should it become necessary
for whatever reason to check pressure
with hot tyres, do not reduce pressure
although it is higher than the prescribed
value but repeat the check when tyres
are cold (see section “Wheels” in sec-
tion “Technical Specifications”).
TYRE PRESSURE MONITORING SYSTEM -
T.P.M.S. (where provided)
The T.P.M.S. does not
exempt the driver from
checking tyre pressure, includ-
ing the space-saver spare
wheel (where provided) at
regular intervals.
WARNING
T.P.M.S. cannot indicate sudden tyre
pressure drops (e.g.: tyre burst). In this
event, brake the car cautiously and
avoid sudden steering.
The T.P.M.S. system requires special
equipment. Consult Alfa Romeo Autho-
rized Services to know what type of ac-
cessories are compatible with the sys-
tem (wheels, wheel caps, etc.). Using
other accessories could cause system
malfunctioning. Due to inflation valve
special characteristics, use only tyre re-
pair sealants approved by Alfa Romeo;
other sealants could cause system mal-
functioning.

121
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
DIESEL ENGINES
If the outside temperature is very low,
the diesel thickens due to the formation
of paraffins and could clog the diesel fu-
el filter.
In order to avoid these problems, dif-
ferent types of diesel are distributed ac-
cording to the season: summer type,
winter type arctic type (mountains/cold
areas).
If refuelling with diesel fuel not suitable
for the current temperature, mix diesel
fuel with DIESEL MIXadditive in the
proportions stated on the can, putting
first the antifreeze in the tank and then
the diesel fuel.
DIESEL MIXshall be added to diesel
fuel before the due to cold take place.
Adding it later will be worthless.
AT THE FILLING
STATION
IMPORTANTRefuelling shall always
be performed with engine off. Failing to
observe this precaution could cause the
gauge to provide wrong indications.
Should this occur, to restore proper in-
dication just have next refuelling with
the engine off. Otherwise contact Alfa
Romeo Authorized Services
PETROL ENGINES
Use only unleaded petrol. To prevent er-
rors, the diameter of the fuel tank filler
is too small to introduce a lead petrol
pump filler. Use petrol with a rated oc-
tane number (R.O.N.) not lower than
95.
IMPORTANTAn inefficient catalyst
leads to harmful exhaust emissions, thus
contributing to air pollution.
IMPORTANT Never use leaded
petrol, even in small amount or in an
emergency, as this would damage the
catalyst beyond repair.
The car must only be
filled with diesel fuel for
motor vehicles, in com-
pliance with European Standard
EN590. The use of other prod-
ucts or mixtures may irrepara-
bly damage the engine with in-
validation of the warranty due
to the damage caused. In the
event of accidentally filling with
another type of fuel, do not
start the engine and empty the
tank. If the engine has been run
even for only a very short time,
in addition to the tank, it is al-
so necessary to drain out the
whole fuel circuit.

123
SAFETY
DEVICES
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
CORRECT USE
OF THE CAR
DASHBOARD
AND
CONTROLS
The devices for curtailing diesel fuel en-
gine emissions are the following:
❒oxidising catalytic converter;
❒exhaust gas recirculation system
(E.G.R.);
❒ diesel particulate filter (DPF).
PROTECTING THE
ENVIRONMENT
The devices for curtailing petrol engine
emissions are the following:
❒ three-way catalytic converter;
❒ Lambda sensor;
❒ fuel evaporation system.
In addition, do not let the engine run,
even for a test, with one or more spark
plugs disconnected.
During normal service
the diesel particulate
filter (DPF) reaches high tem-
peratures. Do not therefore
park the car over inflammable
materials (grass, dry leaves,
pine needles, etc.): fire hazard.
WARNING