2010 Alfa Romeo GT wiper blades

GETTING TO KNOW YOUR CAR
48
At each start, the rain sensor automatically
stabilises at a temperature of about 40°C
to eliminate any condensation from the con-
trol surface and prevent the formation of ice.
The rain sensor is able to detect and au-
tomatically adapt to the presence of the fol-
lowing particular conditions which require
different sensitivity:
– impurities on the control surface (salt,
dirt, etc.);
– streaks of water caused by worn wiper
blades;
– difference between day and night (the
human eye is more disturbed during the
night by the wet glass surface). Rain sensor (fig. 64)
The rain sensor (A), fitted only on cer-
tain versions, is an electronic device com-
bined with the windscreen wiper which has
the purpose of automatically adjusting the
number of wipes during intermittent opera-
tion to the 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. 62) 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.Turning the knurled ring (F-fig. 62) it
is possible to increase the sensitivity of the
rain sensor, obtaining a quicker change from
stationary, when the windscreen is dry, to
first continuous speed (continuous, slow).
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 (MARposition) 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).
When the rain sensor is reactivated in this
way, the wiper performs at least one stroke,
even if the windscreen is dry, to indicate that
reactivation has occurred.
The rain sensor is located behind the inner
rear-view mirror in contact with the wind-
screen and inside the area cleaned by the
wiper and it controls an electronic control
unit which in turn controls the wiper motor.
fig. 64
A0A0331b

CORRECT USE OF THE CAR
178
Keep your speed
down when snow
chains are fitted.
Do not exceed 50 km/h. Avoid
potholes, steps and pavements and
avoid also to drive for long dis-
tances on roads not covered with
snow to prevent damaging the car
and the roadbed.
CAR INACTIVITY
If the car is to be left inactive for long pe-
riods, the following precautions should be
noted:
– House the car under cover in a dry and
possibly ventilated place.
– Engage a gear.
– Check that the handbrake is not en-
gaged.
– Clean and protect the paintwork by pro-
tective wax.
– Clean and protect the metal polished
parts with marketed products.
– Cover the rubber windscreen and
rearscreen wiper blades with talcum powder
and raise them off the glass.
– Open the windows slightly.
– Inflate the tyres to a pressure of 0.5 bars
above normal. If possible rest the tyres on
wooden planks and periodically check the
pressure.
– Do not turn on the electronic alarm sys-
tem.– Disconnect the battery negative termi-
nal from the battery and check the battery
charge. This check should be repeated
every three months during stowage.
Charge the battery if the indicator (where
provided) shows a dark colour in the central
green area.
– Do not empty the engine cooling sys-
tem.
– Cover the car with a fabric or perforat-
ed plastic cover. Do not use compact plas-
tic covers which prevent the humidity on the
surface of the car from evaporating. Snow chains cannot be
fitted to the space-saver
spare wheel. So, if a front
(drive) wheel is punctured and
chains are needed, a rear wheel
should be fitted to the front of the
car (adjust tyre pressure to the
specified value as soon as possi-
ble) and the space-saver spare
wheel should be fitted to the rear.
This way with two normal drive
wheels, snow chains can be fitted
to them to solve an emergency.
Deactivate the ASR sys-
tem when snow chains are
fitted. Press the ASR-OFF
button, button led turned on.

CAR MAINTENANCE
217
SCHEDULED MAINTENANCE PROGRAMME
20 40 60 80 100 120 140 160 180Thousands of km
Check tyre conditions/wear and adjust pressure if necessary
Check operation of lighting system (headlights, direction indicators,
hazard warning lights, boot, passenger compartment, glovebox lights, warning lights, etc..)
Check operation of windscreen washer system, adjust spray jets
Check position/wear of windscreen/rearscreen wiper blades
Check operation of front disk brake pad wear indicator
Check wear conditions of rear disk brake pads
Sight check the conditions of: body exterior, underbody protection, stiff pipes
and hoses (exhaust - fuel supply - brakes), rubber parts
(boots - sleeves - bushes etc..)
Check cleanness of locks, bonnet and boot and lever cleanness, and lubrication
Sight inspect accessory drive belt conditions
Check handbrake lever stroke adjustment
Change air cleaner cartridge (petrol versions)
Change air cleaner cartridge (JTD versions)
Top up fluid levels (engine coolant, brakes, windscreen washer, battery, etc..)
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CAR MAINTENANCE
235
SPRAY NOZZLES (fig. 18)
If the jet of fluid is inadequate, firstly check
that there is fluid in the reservoir: see
“Checking levels” in this chapter.
Then check that the nozzle holes are not
clogged, if necessary use a needle.
If necessary, direct the jet of fluid work-
ing on the adjustment screw.
fig. 17
A0A0728b
Changing the windscreen
wiper blade (fig. 17)
How to remove the blade
Proceed as follows:
– raise the windscreen wiper arm (A);
– turn the blade (B) 90° around the pin
(C) set at wiper arm end;
– remove the blade from pin (C).
How to refit the blade
Proceed as follows:
– fit pin (C) into the hole set in the mid-
dle of the blade (B);
– refit the wiper arm with the blade on
the windscreen.
Driving with worn wiper
blades is a serious hazard,
because visibility is re-
duced in bad weather.WINDSCREEN/REAR
SCREEN WIPERS
BLADES
Periodically 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 rubber
against the glass. If necessary, thaw using
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
rearscreen wipers on dry glass.
fig. 18
A0A0696b