2007 FIAT SEICENTO technical specifications

131TECHNICAL SPECIFICATIONS
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.

132TECHNICAL SPECIFICATIONS
BRAKES
SERVICE AND EMERGENCY
BRAKES
Front:
– disc, floating caliper type with op-
erating cylinder for each wheel.
Rear:
– drum type with self-centring shoes
and operating cylinder for each wheel.
Crossed hydraulic circuit control.
7” vacuum brake booster.
ABS system with four sensors
(where fitted).
Automatic take-up of friction liner
wear.
Brake effort proportioning valves (2)
intervening on hydraulic circuit of the
rear brakes. HANDBRAKE
Controlled by a lever, it works me-
chanically on the rear brakes.
SUSPENSION
Front:
Independent wheel type, lower wish-
bones anchored to telescopic sup-
ports consisting of a cast iron riser
rigidly connected to a hydraulic dou-
ble action shock absorber. Leaf spring
and coaxial pads with the shock ab-
sorbers. Permanently lubricated joints.
Anti-roll bar anchored to the body
acting on suspension arm.
Rear:
Independent wheel with coil springs.
Jointed steel arms with bush and dou-
ble action telescopic gas shock ab-
sorbers. Water, ice and salt
sprinkled on the road de-
posit on the brake disc
and reduce effectiveness when
you brake.
Pay attention when in-
stalling extra spoilers, al-
loy wheels and non stan-
dard wheel caps: they could re-
duce the ventilation of the
brakes, thus reducing their effi-
ciency when braking suddenly
and frequently, or on long down-
hill slopes.

133TECHNICAL SPECIFICATIONS
STEERING
Jointed steering column with two
CV joints.
Permanently lubricated rack and pin-
ion.
Number of steering wheel turns lock
to lock (approximately) ................. 3.9
Minimum steering circle: 10.5 metres
(average between versions).
Electronically controlled power
steering system optional.
WHEELS
RIMS AND TYRES
Printed steel or alloy rims. Specific
wheel bolts (different in size and rec-
iprocally incompatible) for each of the
two types of rim.
Tubeless tyres with radial carcass.
The homologated tyres are listed in
the log book.
IMPORTANT In the event of dis-
crepancies between the information
provided in this Owner Handbook
and the Log Book, consider the spec-
ifications shown in the Log Book only.
To ensure safety of the car in move-
ment, it must be fitted with tyres of
specified size and of the same make
and type on all wheels.IMPORTANT Do not use inner
tubes with tubeless tyres.
Do not fasten alloy wheels with the
steel wheel bolts and vice versa. For
details on the compatibility between
rims and bolts - also with reference to
the space-saver spare wheel - see
IF A
TYRE IS PUNCTURED
.

134TECHNICAL SPECIFICATIONS
WINTER TYRES
Use winter tyres as indicated in the
WINTER TYRESchapter.
SMALL SPARE WHEEL
Printed steel rim.
Tubeless tyre.
SNOW CHAINS
Use only low profile chains, see the
SNOW CHAIN CHAPTER.
WHEEL GEOMETRY
Front wheel toe-in measured from
rim to rim: –1 ±1mm
The figures refer to the car in full
running order.Maximum speed rating
Q= up to 160 km/h.
R= up to 170 km/h.
S= up to 180 km/h.
T= up to 190 km/h.
U= up to 200 km/h.
H= up to 210 km/h.
V= up to 240 km/h.
Maximum speed rating
for snow tyres
Q M+S= up to 160 km/h
T M+S= up to 190 km/h
H M+S= up to 210 km/h Example: 165/55 R 13 70 H
165= Nominal width (S, distance
between side walls in mm).
55= Height/width ratio (H/S, as a
percentage).
R= Radial tyre.
13= Rim nominal diameter in
inches (Ø).
70= Load rating (carrying capacity).
H= Maximum speed rating.
fig. 5
P3P01062
UNDERSTANDING TYRE
MARKINGS
The following are the necessary in-
dications to understand the meaning
of the markings on the tyre.

135TECHNICAL SPECIFICATIONS
Tyre
155/65 R13 – 73T
155/70 R13 – 75T
165/55 R13 – 70H (*)
155/65 R13 – 73TSnow tyre
145/70 R13 – 71Q M+S
145/70 R13 – 71Q M+S Rim
5Bx13 H
5
1/2Bx13 H2
5Bx13 H
Space-saver spare wheelrim tyre
4
1/2Jx13 H 135/70 R13 – 68T
Standard size spare wheel
Example: 5 1/2 B x 13 H2
5 1/2= rim width in inches (1)
B= rim drop centre outline
(side projection where the
tyre bead rests) (2) UNDERSTANDING RIM
MARKINGS
The following are the necessary in-
dications to understand the meaning
of the markings on the rim.13= rim nominal diameter in
inches (corresponds to di-
ameter of the tyre to be
mounted) (3 = Ø)
H2= “hump” shape and number
(relief on the circumfer-
ence holding the tubeless
tyre bead on the rim)
Versions
S - Active
Van
(*) Optional tyres.

136TECHNICAL SPECIFICATIONS
COLD TYRE PRESSURE (bar)
Add +0.3 bar to the prescribed inflation pressure when the tyres are warm.
Check again the correct pressure when the tyres are cold.
Versions Tyre With average load With full load Space-saver
Front Rear Front Rear spar wheel
S - Active155/65 R13 – 73T
2.1 2.0 2.3 2.3 2.5 155/70 R13 – 75T
165/55 R13 – 70H
145/70 R13 – 71Q M+S
Van155/65 R13 – 73T 2.0 2.0 2.2 2.2 Standard size
spare
145/70 R13 – 71Q M+S 2.1 2.0 2.3 2.3wheel

137TECHNICAL SPECIFICATIONS
Length mm
Width mm
Empty standing height mm
Projection front mm
rear mm
Wheelbase mm
Front track front mm
rear mm
Unladen boot volume
(V.D.A. standards): dm3
PERFORMANCE
Top permissible speed after running:
150 km/h.
S - Active
3337
1508
1420
637
500
2200
1277
1270
170 (*)Van
3337
1508
1440
637
500
2200
1275
1268
810
DIMENSIONS
Minor differences in dimensions may occur according to rims and/or versions.
(*) Extending with load: - in line with windows 440 dm3
- to the roof 810 dm3
(requiring the use of two external rearview mirrors)

138TECHNICAL SPECIFICATIONS
Van
760
450
610
720
1210
400
200
28
30 S - Active
735
465
610
630
1200
400
350
28
30
WEIGHTS
(1) If special equipment is fitted (sunroof, tow hitch etc.) the unladen weight increases, thus reducing the payload as specified in the maximum loads al-
lowed.
(2) The driver is responsible for arranging the load so that it complies with these limits.
Weight empty (including fluids, 90% fuel in the tank and no optional) kg
Payload
(4 occupants + 50 kg or driver + 330 kg) kg
Maximum loads permitted (2):
– front axle kg
– rear axle kg
– fully laden kg
Towable weight:
– trailer with brake kg
– trailer without brake kg
Weight on trailer ball joint kg
Maximum weight on roof kg