2004 Alfa Romeo 156 technical specifications

TECHNICAL SPECIFICATIONS
305
SPARK PLUGClean, intact spark plugs are determinant
with regard to engine efficiency and for re-
ducing the emission of pollutants.Spark plugs should be re-
placed at the intervals
specified in the Scheduled
Maintenance Programme. Only use
spark plugs of the specified type: if
the thermal capacity is inadequate
or if the envisaged life is not guar-
anteed inconveniences may ensue.BRAKESService brakes:
– front
– rearParking brake
If examined by an expert eye, the ap-
pearance of a spark plug is a sound clue
for locating a fault, even if not involving the
ignition system. Therefore if you are expe-
riencing any engine problems, it is impor-
tant to have the spark plugs checked by Al-
fa Romeo Authorized Services.
STEERING
1.6 T.SPARK 1.8 T.SPARK 2.0 JTS 2.0 JTS 2.5 V6 24V 2.5 V6 24V JTD JTD 20V
Selespeed Q-System JTD 16V Multijet
MultijetSelf-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated Self-ventilated
disk disk disk disk disk disk disk disk
Disk Disk Disk Disk Disk Disk Disk Disk
Wheel anti-look system (ABS) with electronic braking distribution.
Servo-brake. Electronic control with brake pad wear sensors. Gasket of ecological type.
Controlled by hand lever operating rear brakes.
Type Turning radius(between pavements)
1.6 T.SPARK 1.8 T.SPARK 2.0 JTS 2.0 JTS 2.5 V6 24V 2.5 V6 24V JTD-JTD 16V JTD 20V
Selespeed Q-System Multijet Multijet
Rack and pinion.
Hydraulic power steering with liquid reservoir in engine compartment
11.1 m 11.1 m 11.1 m 11.1 m 11.6 m 11.6 m 11.1 m 11.1

TECHNICAL SPECIFICATIONS
306
WHEELS AND TYRES
1.8 T.SPARK
PROGRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)1.8 T.SPARK
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*) 1.6 T.SPARK
PROGRESSION
6J x 15”
185/65 R15” 88H
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15” (❒)
205/60 R15” 91V
(▼)
6,5J x 16” (❒)
205/55 R16” 91V
(●)
7J x 17 ”
215/45 ZR17 (*)1.6 T.SPARK
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)1.8 T.SPARK
IMPRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
1.6 T.SPARK
IMPRESSION
6J x 15”
185/65 R15” 88H
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
VersionsStandard fittingsSteel wheelTyres
Alloy wheelTyres
Spare – rimwheel: – tyreOptional fittingsAlloy wheelTyre
Alloy wheelTyres
Alloy wheelTyres(*) = Snow chains may not be used on this tyres
(●) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 9 mm.
(▼) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 12 mm.
(❒) = Excluding Sportwagon versions
Winter tyres: winter tyres with “Q” min. speed index can be used.

TECHNICAL SPECIFICATIONS
307
2.5 V6 24V
PROGRESSION
6,5J x 15”
205/60 R15” 91W
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91W
(▼)
6,5J x 16”
205/55 R16” 91W
(●)
7J x 17”
215/45 ZR17” (*) 2.0 JTS Selespeed
PROGRESSION
6,5J x 15”
205/60 R15” 91V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17” (*) 2.0 JTS
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*) 2.0 JTS
PROGRESSION
6,5J x 15”
205/60 R15” 91V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*) 2.0 JTS
IMPRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
2.0 JTS Selespeed
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17” (*)
VersionsStandard fittingsSteel wheelTyres
Alloy wheel
Tyres Spare – rimwheel: – tyreOptional fittingsAlloy wheel
TyreAlloy wheelTyre
Alloy wheelTyres(*) = Snow chains may not be used on this tyres
(●) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 9 mm.
(▼) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 12 mm.
Winter tyres: winter tyres with “Q” min. speed index can be used.

TECHNICAL SPECIFICATIONS
308
(*) = Snow chains may not be used on this tyres
(●) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 9 mm.
(▼) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 12 mm.
Winter tyres: winter tyres with “Q” min. speed index can be used.
VersionsStandard fittings
Steel wheelTyres
Alloy wheelTyres
Spare wheel:
– rim
– tyre
Optional fittings
Alloy wheel
Tyre
Alloy wheelTyres
Alloy wheelTyres
JTD
PROGRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)JTD
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*) JTD
IMPRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
2.5 V6 24V
Q-System
DISTINCTIVE
6,5J x 16”
205/55 R16” 91W
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91W
(●)
7J x 17”
215/45 ZR17” (*)2.5 V6 24V
DISTINCTIVE
6,5J x 16”
205/55 R16” 91W
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91W
(●)
7J x 17”
215/45 ZR17” (*) 2.5 V6 24V
Q-System
PROGRESSION
6,5J x 15”
205/60 R15” 91W
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91W
(▼)
6,5J x 16”
205/55 R16” 91W
(●)
7J x 17”
215/45 ZR17” (*)

TECHNICAL SPECIFICATIONS
309
JTD 16V Multijet
PROGRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*) JTD 16V Multijet
IMPRESSION
6J x 15”
185/65 R15” 88V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
JTD 16V Multijet
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)JTD 20V Multijet
PROGRESSION
6,5J x 15”
205/60 R15” 91V
(▼)
4J x 15”
T125/80 R15” 95M
6,5J x 15”
205/60 R15” 91V
(▼)
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)JTD 20V Multijet
DISTINCTIVE
6,5J x 16”
205/55 R16” 91V
(●)
4J x 15”
T125/80 R15” 95M
6,5J x 16”
205/55 R16” 91V
(●)
7J x 17”
215/45 ZR17“ (*)
VersionsStandard fittings
Steel wheelTyres
Alloy wheelTyres
Spare wheel:
– rim
– tyre
Optional fittings
Alloy wheel
Tyre
Alloy wheelTyres
Alloy wheelTyres(*) = Snow chains may not be used on this tyres
(●) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 9 mm.
(▼) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 12 mm.
Winter tyres: winter tyres with “Q” min. speed index can be used.

TECHNICAL SPECIFICATIONS
310
RIMS AND TYRESPressed steel or alloy rims.
Radial Tubeless tyres.
The Log book shows all the homologated
tyres.
WARNINGIn the event of any discrep-
ancies between this Handbook and the ve-
hicle Log Book, only the latter should be con-
sidered.While the specified dimensions remain the
same, for driving safety, the vehicle must
be fitted with tyres of the same brand and
type on all wheels.TYRE INFLATION PRESSURES COLD
Tyres
185/65 R15”
(▼)
front rear2.2 2.2
2.5 2.5
Tyres
205/55 R16”
(●)
front rear2.4 2.4
2.6 2.6
Tyres
205/60 R15”
(▼)
front rear2.2 2.2
2.5 2.5
Tyres
215/45 ZR17”
(*)
front rear2.4 2.4
2.6 2.6
Compact spare
wheel
125/80 R15”
4.2
WARNINGDo not use inner tubes with
Tubeless tyres.
Reduced load (2 occupants) barFull load bar(*) = Snow chains may not be used on this tyres
(●) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 9 mm.
(▼) = Tyres on which chains can be fitted: use snow chains with reduced size with max. protrusion beyond the tyre profile of 12 mm.
With the tyre hot the inflating pressure should be +0.3 bar compared with the specified rating. Recheck pressure value with cold tyres.
With winter tyres the inflation pressure should be +0.2 bar compared with the specified rating.

TECHNICAL SPECIFICATIONS
311
CORRECT TYRE READING(fig. 5)
Below are the instructions necessary to
know the meaning of the code stamped on
the tyre.
The code may be like one of the examples
given below.Load index (capacity)
60= 250 kg
61= 257 kg
62= 265 kg
63= 272 kg
64= 280 kg
65= 290 kg
66= 300 kg
67= 307 kg
68= 315 kg
69= 325 kg
70= 335 kg
71= 345 kg
72= 355 kg
73= 365 kg
74= 375 kg
75= 387 kg
76= 400 kg
77= 412 kg
78= 425 kg
79= 437 kg
80= 450 kg
81= 462 kg
82= 475 kg
83= 487 kg84= 500 kg
85= 515 kg
86= 530 kg
87= 545 kg
88= 560 kg
89= 580 kg
90= 600 kg
91= 615 kg
92= 630 kg
93= 650 kg
94= 670 kg
95= 690 kg
96= 710 kg
97= 730 kg
98= 750 kg
99= 775 kg
100= 800 kg
101= 825 kg
102= 850 kg
103= 875 kg
104= 900 kg
105= 925 kg
106= 950 kg
Example:
205/60 R 15 91V
or:
215/45 ZR 17
205= Nominal width (S, distance
in mm between the sides).
60= Percentage height/width (H/S)
ratio.
R= Radial tyre.
ZR= Radial tyre with speed above
240 kph.
15= Rim diameter in inches. (Ø).
91= Load index (capacity), e.g. 91 =
615 kg. Not present in ZR tyres.
V, Z= Maximum speed index. In ZR tyres
the speed index Z is before the R.
fig. 5
A0B0395m

TECHNICAL SPECIFICATIONS
312
CORRECT RIM READINGBelow are the instructions necessary to
know the meaning of the code stamped on
the rim, as shown in fig. 5.
Example:
6.5 J x 16 H2 ET 436.5= rim width in inches (1)
J= rim drop centre outline (side
projection where the tyre bead
rests (2)
16= rim nominal diameter in inches
(corresponds to diameter of the
tyre to be mounted) (3= Ø)
H2= “hump” shape and number (re-
lief on the circumference hold-
ing the Tubeless tyre bead on
the rim)
ET 43= camber angle (distance be-
tween disk/rim line and wheel
rim centre line) Maximum speed index
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 210 km/h.
ZR= up to 240 km/h.
W= up to 270 km/h.
Y= up to 300 km/h.Maximum speed index for snow
tyres
Q M + S= up to 160 kph.
T M + S= up to 190 kph.
H M + S= up to 210 kph.
COMPACT SPARE WHEELPressed steel rim.
Tubeless tyre.
For specific markets normally-sized spare
wheel.