Page 118 of 146

117CAR MAINTENANCE
If the pressure is too low
the tyre overheats and
this can cause it serious
damage.IMPORTANT
As far as possible avoid sharp brak-
ing and screech starts.
Be careful not to hit the kerb, pot-
holes or other obstacles hard. Driving
for long stretches over bumpy roads
can damage the tyres.
Periodically check that the tyres have
no cuts in the sidewalls, abnormal
swelling or irregular tyre wear. If any
of these occur, have the car seen to
at a Fiat Dealership.
Avoid overloading your car: this can
seriously damage wheels or tyres.
If you get a flat tyre, stop immedi-
ately and change it so as not to dam-
age the tyre, the wheel, the suspen-
sion and the steering.
Tyres age even if they are not used
very much. Cracking of the tread rub-
ber and the sidewalls are a sign of this
ageing. In any case, if the tyres have
been fitted for more than six years
they should be examined by an expert
who can judge whether they are still
fit for use. Remember to check the
spare tyre particularly carefully too.
Tyre pressure must be
correct to ensure good
road holding.Wrong pressure causes uneven
wear of the tyres fig. 8:
A - correct pressure: tyre wears
evenly;
B - under inflated tyre: shoulder
tread wear;
C - over inflated tyre: centre tread
wear.
Tyres must be replaced when the
tread wears down to 1.6 mm. In any
case, comply with the laws in the
country where the car is being driven.
fig. 8
P4Q00086
WHEELS AND TYRES
TYRE PRESSURE
Check the pressure of each tyre, in-
cluding the spare, every two weeks
and before long journeys.
The pressure must be checked when
the tyre is rested and cold.
It is normal for the pressure to rise
when you are driving. If you have to
check or restore the pressure when
the tyres are warm, remember that
the pressure value must be 0.3 bar
above the specified value.
See
WHEELSin TECHNICAL SPECIFICA-
TIONSfor the correct tyre inflation
pressure.
105-123 Seicento GB 22-11-2007 10:51 Pagina 117
Page 127 of 146

Modifications or repairs
to the fuel feed system
that are not carried out
properly or do not take the sys-
tem’s technical specifications
into account can cause malfunc-
tions leading to the risk of fire. FUEL SUPPLY IGNITION
Integrated multipoint electronic in-
jection and ignition system: a single
control units controls both function
processing injection time (for fuel me-
tering) and spark advance angle at the
same time.
SPARK PLUGS
The cleanness and soundness of the
spark plugs are very important for
keeping the engine efficient and pol-
luting emissions down.
The appearance of the spark plug, if
examined by an expert eyes, is a good
way of pinpointing a problem even if
it has nothing to do with the ignition
system. Therefore, if the engine has
problems, it is important to have the
spark plugs checked at a Fiat Deal-
ership.
TRANSMISSION
CLUTCH
Mechanically controlled without
travel-free pedal.
GEARBOX
Five forward gears and reverse with
synchromesh for front gear engage-
ment.
Cyclical gear reduction and differen-
tial assembly incorporated in the gear-
box.
Drive transmission to the front
wheels by means of drive shafts con-
nected to the differential assembly and
the wheels with CV joints. The spark plugs must be
changed at the times
specified in the
SERVICE
SCHEDULE
. Only use the type of
plugs indicated. If the heat ratio
is less than required or the life
specified is not guaranteed, prob-
lems can arise.
126TECHNICAL SPECIFICATIONS
124-136 Seicento GB 22-11-2007 10:51 Pagina 126
Page 136 of 146

135TECHNICAL SPECIFICATIONS
UseOriginal fluids
and lubricants
TETELA CAR
TECHNYX
Contractual Technical
Reference N.° F010.B05
TUTELA ALL STAR
Contractual Technical
Reference N.° F702.G07
TUTELA TOP 4
Contractual Technical
Reference N.° F001.A93
PARAFLU UP
Contractual Technical
Reference N.° F101.M01
TUTELA
PROFESSIONAL
SC 35
Contractual Technical
Reference N.° F201.D02 Fluid and lubricant specifications
for correct car operation
Lubricant with synthetic basis complying with SAE 75W-85.
Performance exceeds by far the API GL-4 PLUS
and FIAT 9.55550 standards required.
Grease containing Molybdenum bisulphide for high
temperature appliances. NLGI 1-2 consistency.
Synthetic fluid, F.M.V.S.S. no. 116, DOT 4, ISO 4925,
SAE J-1704, CUNA NC 956-01
Anti-freezing safety liquid (red colour) containing
monoethylene glycol inhibited with organic formula.
Antifreeze complying with CUNA NC 956-16, ASTM D
3306 standards.
Mixture of alcohols, water and surfactants
(CUNA NC 956-11).Change
Mechanical gear and
differential gear.
Constant-velocity
joints on wheel side.
Hydraulic brakes
and clutch hydraulic
controls.
Radiator antifreeze
proportion:
50% water and 50%
PARAFLU UP (
❒)
To be used diluted
or undiluted in
windscreen/rear
window washer/
wiper systems
IMPORTANTDo not top up or mix with fluids having characteristics different from those specified.
(
❒) For particularly hard climate conditions, we recommend use of a 60% PARAFLU UP and 40% demineralized water mixture.
Lubricants and greases
for transmission
Brake fluids
Protective agent
for radiatore
Windscreen/
rear window
washer fluid
124-136 Seicento GB 22-11-2007 10:51 Pagina 135