wipers Alfa Romeo 156 2005 Owner handbook (in English)

GETTING TO KNOW YOUR CAR
116
The anti-pollution sensor
is placed in the air flow in
front of the combined par-
ticle activated carbon filter and,
therefore, must be protected
against possible compressed air
jets produced by cleaning equip-
ment. Moreover, the water col-
lected from the windscreen wipers
should not come into contact with
the sensor: otherwise, the internal
air recirculation function could be
disabled for long periods.
WARNINGThe demisting procedure is
enabled every time the ignition key is turned
to MAR, or pressing the
AUTO
button.
When this procedure is working it can be
turned off pressing one of the following but-
tons: compressor, air recirculation, air dis-
tribution, air flow. This operation inhibits the
incipient misting sensor signal until the AUTO
button is pressed again or the next time the
ignition key is turned to MAR.
On certain versions, the system is inte-
grated by an anti-pollution sensor that is able
to switch on the inside air recirculation func-
tion automatically, to reduce the unpleasant
smell of polluted air when driving in urban
areas, queues, tunnels, and when the wind-
screen wash/wiper is operated (with the
typical smell of spirits).WARNINGThe function of the anti-pol-
lution sensor is subordinate to safety con-
ditions; therefore disabling the climate con-
trol compressor or at an outside temperature
below 4°C, the sensor is disabled. In any
case, the sensor can be re-enabled press-
ing the recirculation button
v
until taking
it to the automatic mode. To ensure correct opera-
tion of the incipient misting
sensor, stickers (e.g. road
licence holder) must not be applied
in the “control” area between the
sensor and the windscreen. For this
very reason, both the sensor and
the windscreen must always be
kept clean, to avoid accumulation
of dirt or other substances.

CORRECT USE OF THE CAR
196
Tyres
Tyres should be checked at least every four
4 weeks: if the pressure is too low, fuel con-
sumption increases as the resistance to the
rolling movement of the tyre is higher. In
this state, tyre wear is increased
and vehicle handling suffers which will af-
fect safety.
Unnecessary loads
Do not travel with too much luggage stowed
in the boot. The weight of the vehicle (es-
pecially when driving in town) and its trim
greatly affects consumption and stability.
Luggage/ski rack
Remove luggage or ski racks from the roof
of the vehicle as soon as they are no longer
needed. These accessories reduce the aero-
dynamic penetration of the vehicle and will
increase consumption. When transporting
particularly large objects, use a trailer where
possible.Electrical devices
Use the electric devices for the necessary
time only. The heated rear window, supple-
mentary lights, windscreen wipers, heating
system blower require large amounts of en-
ergy and, increasing the request for power
also increases fuel consumption (up to
+25% when driving in built-up areas).
Air conditioner
The air conditioner is an additional load
which greatly affects the engine leading to
higher consumption (on average up to
+20%). When the temperature outside the
vehicle permits it, use the air vents where
possible.
Spoilers
The use of aerodynamic optional extras
which are not certified for the specific use
on the vehicle, may reduce the aerodynamic
penetration of the vehicle and increase con-
sumption.
STYLE OF DRIVINGStarting
Do not warm the engine when the vehicle
is stationary or at high or low revs: in this
way the engine will warm up gradually in-
creasing consumption and emissions. You
should drive off slowly straight away avoid-
ing high revs so that the engine will warm
up more quickly.
Unnecessary actions
Avoid revving the engine when stopped at
traffic lights or before switching off the en-
gine and avoid doubling the clutch as these
actions have no purpose on modern vehicles
and serve only to increase consumption and
pollution.
Gear selection
As soon as the traffic and road conditions
allow it, shift to a higher gear. Using a lower
gear to liven up acceleration greatly in-
creases consumption. In the same way, im-
proper use of the higher gears will increase
consumption, emissions and wear and tear
on the engine.

CAR MAINTENANCE
273
Proceed as follows:
– Raise the windscreen wiper arm and po-
sition the blade so that it forms an angle
of 90° with the arm.
– Press tab (B) of the coupling spring and
remove the blade to be replaced from the
arm (A).
– When the spring is released from the
curved top of the arm, move the blade to al-
low the arm to be withdrawn through the slot.
– Insert a new blade passing it through the
curved top of the arm (A) through the slot.
– Lift the blade to clamp tab (B) of the cou-
pling spring with the curved top of the arm.
– Lower the windscreen wiper arm.
WARNINGThe blades may differ ac-
cording to the versions. In any case, follow
the instructions provided in the packs avail-
able as spares from Alfa Romeo Authorized
Services. Changing the windscreen wiper
blade (fig. 27)
WARNINGThe blade on driver’s side
is fitted with a spoiler that improves adhe-
sion between the blade and the windscreen.
To prevent improper fitting, before changing
the blade, check the spoiler direction of the
blade to be replaced, then fit the new blade
following the same spoiler direction.
fig. 27
A0B0580m
WINDSCREEN/REAR
SCREEN WIPERSBLADESPeriodically clean the rubber part using spe-
cial products TUTELA PROFESSIONAL
SC 35is recommended.
If the rubber blades are bent or worn they
should be replaced. In any case they should
be changed once a year.
A few simple notions can reduce the pos-
sibility of damage to the blades:
– If the temperature falls below zero,
make sure that ice has not frozen the rub-
ber against the glass. If necessary, thaw us-
ing an antifreeze product.
– Remove any snow from the glass: in ad-
dition to protecting the blades, this prevents
effort on the motor and overheating.
– Do not operate the windscreen and rear
window wipers on dry glass.
Driving with worn wiper
blades is a serious hazard,
because visibility is reduced in bad
weather.
WARNING