2007 Alfa Romeo 166 oil

103
Routinely check that the
side water drain holes
(C-fig. 130) are clear.
SUNROOF
(optional for versions/markets where
applicable)
The sunroof can only be operated when
the ignition key is in theMARposition.When the sunroof is opened a small
spoiler (B-fig. 129) rises which diverts
the flow of air.
Do not open the sunroof
when snow or ice are
on the roof as this may
damage it.
SLIDING
FORWARDS/BACKWARDS
(fig. 128-129-130)
Press part (1) of the button (A-
fig. 128) to open the roof; press part
(2) of the button to close it.
When the button is released the sunroof
will stop in that position.
377PGSm
fig. 129
348PGSm
fig. 128
Improper use of the sun-
roof can be dangerous.
Before and while operating it al-
ways make sure that the passen-
gers are not exposed to the risk of
harm caused either directly by the
sunroof in motion or by personal
items drawn or knocked by it.
WARNING
When leaving the vehicle
the ignition key should be
removed to avoid accidents in-
volving the sunroof which could be
inadvertently operated by any pas-
sengers remaining in the vehicle.
WARNING

107
The gas springs are cali-
brated to guarantee
correct operation with
loading specified by the manufac-
turer. Arbitrary additions to the
boot lid (spoiler etc.) may affect
its operation and safety.
EMERGENCY OPENING
The luggage compartment lock is re-
leased by a servocontrol when opening
the bonnet from inside or using the key.
However, it is always possible to open
the luggage compartment, even in case
of insufficient battery power: just rotate
the key wider and simultaneously press
the bonnet edge by the hand.
IMPORTANTApply a moderate pres-
sure only on the bonnet edge, immediate-
ly above the lock.
LIFTING AND CLOSING
Lifting the boot lid is made easier by the
action of the gas springs (B-fig. 138).When the boot is opened the light (C-
fig. 138) will come on. This light will
go out again when the boot is closed.
In order to close, lower the bonnet by
the handle (A-fig. 139) on the lining
and press next to the lock till it clicks into
the right position.
Leaving the boot open, the light goes out
automatically after a few minutes. To turn it
on again, open the boot and close it again.
fig. 139
677PGSm344PGSm
fig. 138

117
VDC AND ASR
SYSTEMS
(on request for versions/markets
where applicable)
VDC SYSTEM (VEHICLE
DYNAMICS CONTROL):
GENERAL
The VDC is an electronic vehicle stability
control system which, acting on the
torque and braking the wheels in a differ-
entiated manner, helps to bring the car
back to the correct course in the event of
loss of grip.
While travelling the car is subjected to
lateral and longitudinal forces that may
be controlled by the driver up to when
the tyres offer adequate road-holding;
when this falls below the minimum level,
the car starts to deviate from the course
required by the driver.Above all on rough surfaces (such as
cobbles, or due to the presence of water,
ice or soil), changes in speed (when ac-
celerating or braking) and/or course
(bends or the need to avoid obstacles)
can cause the tyres to lose grip.
When the sensors detect the conditions
that would lead to skidding, the VDC sys-
tem acts on the engine and brakes gener-
ating a stabilising torque.
The system performance
levels, in terms of active
safety, should not induce the dri-
ver to run pointless and unjustified
risks. Driving conduct should al-
ways be suited to the conditions of
the road surface, vision and traf-
fic. The responsibility for road safe-
ty is always and anyway the ve-
hicle driver’s concern.
The VDC system helps the driver
to keep control of the car in the
event of loss of tyre grip.
The forces induced by the VDC sys-
tem to control the lack of stability
of the car always and anyway de-
pend on the grip between the tyre
and the road surface.
WARNING

130
Lambda sensors
The lambda sensors detect the oxygen
content in the exhaust gas.
The signals transmitted by the Lambda
sensors are used by the electronic control
unit of the injection-ignition system to ad-
just the air-fuel mixture.Anti-evaporation system
(only petrol versions)
As it is impossible, even when the en-
gine is switched off, to prevent the forma-
tion of fuel vapours, a system has been
devised which traps them in a special car-
bon container.
During operation of the engine these
vapours are withdrawn and sent to com-
bustion.
Due to the high temper-
ature reached while the
catalysts are working, it is advis-
able not to park the car over in-
flammable material (paper, fuel
oils, grass, dry leaves, etc.).
WARNING

137
– Check the operation of the horn.
– Check the operation and degree of
wear of the windscreen wipers.
– Check the operation of the external
lights and if necessary, clean the light
units.
– Above all when driving at night,
check the alignment of headlight beams
before starting off.
– Check that no oil or other liquid is
leaking out under the car.
– Ensure that luggage is stowed away
correctly.
– Ensure that, in addition to yourself,
all passengers have fastened their seat
belts.
– Ensure that the handbrake is re-
leased and that the warning lights on the
instrument panel do not indicate a mal-
function. To avoid accidental movements
of the car, disengage the handbrake
keeping the brake pedal pressed.
The following should also be noted:
– Long distances should be tackled
when in good health and should where
possible be programmed, especially when
the roads are busy.– A light meal containing easily assimil-
able foods will help keep reflexes ready
and aid concentration for a safe journey.– Use the direction indicators when
changing direction.
– Switch on the external lights at sun-
set.
– Keep a safe distance from the vehicle
in front. A “safe” distance will vary ac-
cording to the speed of the vehicle,
weather conditions and road-traffic condi-
tions.
– Never drive with one hand resting on
the gear lever. The involuntary movement
of the gear lever which this causes, even
if slight, will cause avoidable wear to the
internal elements of the gearbox.
– Never drive with the gearbox in neu-
tral.
– Do not drive with your foot resting on
the clutch pedal as this habit leads to
rapid wearing of the clutch.
– Do not drive for long periods without
a break. During a break get out of the ve-
hicle and move around a bit to shake off
drowsiness.
– Ensure that the air in the vehicle is
changed constantly using the many possi-
bilities offered by the heating-ventilation
and climate control system.
WHEN TRAVELLING
– Driving with care also means being
able to predict the actions of other road
users, respecting the speed limits and oc-
cupying the near-side lane on motorways.
Driving under the influ-
ence of alcohol, drugs
and/or some medicines is highly
dangerous.
Never drive when drunk or under
the effect of drugs or medicines.
WARNING

139
DRIVING UNDER ADVERSE
WEATHER CONDITIONS
Rain and fog can be extremely danger-
ous if the style of driving is not adapted
to suit these conditions. Some sugges-
tions are given below:
– if the road is wet, the friction be-
tween wheel and asphalt is greatly re-
duced thus increasing the stopping dis-
tance and decreasing road holding when
cornering.
Reduce speed and keep further back
from the vehicle in front.
– Heavy rain and fog reduce visibility.
Headlights should be switched on as the
road traffic laws and common sense dic-
tate, above all to render yourself visible
to others.
– Do not drive over puddles or flooded
roads at high speed as the aquaplaning
phenomenon may cause you to loose
control over the vehicle.
– If visibility is already reduced prevent
it from worsening by ensuring that the
windows do not steam up. Use the heat-
ing-ventilation controls as indicated in the
chapter “Know your vehicle”.– Check the condition of the windscreen
wiper blades.
– If fog is very thick avoid travelling
where possible. If travelling cannot be
avoided drive with extreme care and
moderate your speed. Avoid overtaking.
– If the vehicle is forced to stop owing
to a malfunction or zero visibility condi-
tions, pull off the road, switch on the haz-
ard warning lights and if possible, the
dipped-beam headlights.
MOUNTAIN DRIVING
Mountain driving requires a greater de-
gree of concentration. Some practical
hints follow:
– Before driving off check the level of
fluids (engine oil, brakes, coolant) and
the state of the tyres.
– When travelling down hill use the en-
gine braking by engaging lower gears to
prevent the brakes from overheating.
– Never coast downhill with the engine
off or in neutral and especially not with
the ignition key removed.
– Drive at a moderate speed and avoid
cutting corners.– Remember that overtaking uphill is
slower and therefore requires a greater
length of clear road. If you are being
overtaken on a hill move over to enable
the other vehicle to pass in safety.
WINTER DRIVING
If the temperature falls below 0°C or in
the presence of snow or ice the following
recommendations should be followed:
– Before driving off check that the
windscreen wipers are not frozen to the
windscreen.
– Remove the snow from the air intake
(grille) at the base of the windscreen.
– Do not stop long on deep snow with
the engine running: the snow might di-
vert the exhaust gas carbon monoxide in-
to the passenger compartment.
– Ensure that brakes and tyres are in
perfect working order.
–Ensure that the detergent liquid locat-
ed in the windscreen/headlight washers
has been topped up with anti-freeze and
anti-scale additives.
– Use engine braking where possible
and avoid abrupt braking.

148ECONOMY AND
ENVIRONMENT-
FRIENDLY DRIVING
How you use and how you drive your
vehicle directly influence fuel consump-
tion and environmental impact.
By following a few simple guidelines
and without incising on the “liveliness”
of the vehicle, it is possible to avoid dam-
aging the environment and often, at the
same time, to limit fuel consumption.
The following helpful suggestions will al-
low you to save in running costs and re-
duce harmful emissions.
GENERAL CONSIDERATIONS
Vehicle maintenance
The conditions of the vehicle are an im-
portant factor which affects fuel consump-
tion as well as driving tranquillity and the
life of the car itself. For this reason, care
should be given to maintenance, having
the checks and adjustments given in the
scheduled maintenance programme car-
ried out (see ... spark plugs, idle speed,
air/fuel oil filter, timing).
Tyres
Check the tyre pressure at least every 4
weeks: if the pressure is too low, consump-
tion increases as resistance to rolling is
higher. It should also be underlined that in
these conditions, tyre wear increases re-
sulting in poor handling and lower safety. Drive at a moderate
speed when snow chains
have been fitted to the
wheels. Avoid potholes, steps and
pavements, and do not drive for
long stretches on snow-free roads,
otherwise you risk damaging the
tyres, suspension and steering.
Snow chains can be fit-
ted only on wheels with
6.5J x 16” rims and
215/55 R16 tyres or 7.5J x 17”
rims and 225/45 R17 tyres.
(*) Pour versions/marchè lorsqu’il
est prèvu pneus 205/55 R16.

149
Useless loads
Do not overload the boot (especially in
town), as this will heavily affect fuel con-
sumption and stability of the vehicle.
Roof rack/ski rack
Remove the roof rack or ski rack imme-
diately after use. These accessories lower
air drag and adversely affect consumption
levels. For particularly bulky loads the use
of a trailer is preferable.
Electric services
Use electric devices only for the neces-
sary time. Rearscreen heating, additional
headlights, wipers and the heater fan
consume a considerable amount of ener-
gy, increasing the need for current highers
fuel consumption (up to +25% in the ur-
ban cycle).Climate control system
The climate control system is a further
load that weighs considerably on the en-
gine inducing higher consumption levels
(on average up to +20%). Outside tem-
perature permitting, preferably use the air
vents.
Spoilers
The use of spoilers that have not been
certified by Alfa Romeo can adversely af-
fect air drag and fuel consumption.DRIVING STYLE
Starting
Do not warm the engine stationary at i-
dle speed or high speed: in these condi-
tions the engine warms much more slow-
ly, increasing consumption and emissions.
It is therefore advisable to move off im-
mediately and slowly, avoiding high
speeds. This will warm up the engine
more quickly.
Pointless manoeuvres
Avoid revving the engine when waiting
at traffic lights and before switching the
engine off. This, like revving before
changing gear, serves absolutely no pur-
pose on modern cars and increases con-
sumption and emission levels.
Gearshifting
As soon as the road and traffic condi-
tions permit it, engage a higher gear. The
use of a low gear to obtain lively acceler-
ating increases fuel consumption.
In the same way, incorrect use of a gear
increases consumption, emission and en-
gine wear.