2003 SUBARU IMPREZA Owners Manual

Specifications
12-2
Specifications
These specifications are subject to change without notice. Dimensions
in (mm)
Item
SedanWagon
2.5-liter2.0-liter (Turbo)2.5-liter2.0-liter (Turbo)
RSWRXTSOUTBACK SPORTWRX
Drive systemAWD
Transmission typeATMTATMTATMTATMTATMT
Overall length173.4 (4405)
OverallidthSedan68.1 (1730)–widthWagon–66.7 (1695)67.3 (1710)66.7 (1695)
Overall heightWithout roofrail56.7 (1440)57.7 (1465)58.1 (1475)57.7 (1465)
With roofrail–58.5 (1485)58.9 (1495)58.5 (1485)
Wheel base99.4 (2525)
TreadFront58.5 (1485)57.7 (1465)57.5 (1460)57.7 (1465)
Rear58.1 (1475)58.3 (1480)57.3 (1455)
Ground clearance* 15.9 (150)6.1 (155)5.9 (150)6.3 (160)6.1 (155)
*1: Measured with vehicle empty
AT : Automatic transmission MT : Manual transmission

Specifications
12-3
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Engine
Engine model
EJ251
(2.5-liter, SOHC, non-turbo)EJ205
(2.0-liter, DOHC, turbo)
Engine typeHorizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
Displacement cu in. (cc)150 (2,457)122 (1,994)
Bore × Stroke in. (mm)3.9 × 3.1 (99.5 × 79.0)3.6 × 2.9 (92.0 × 75.0)
Compression ratio10.0 : 18.0 : 1
Firing order1 – 3 – 2 – 4
Electrical system
Battery type and
it (5HR)MT12V-48AH (55D23L)capacity (5HR)ATWith 2.5-liter engine12V-52AH (75D23L)
With 2.0-liter turbo engine12V-52AH (65D23L)
Alternator2.5-liter engine12V – 75A
2.0-liter turbo engine12V – 75A
Spark plugs2.5-liter engineRC10YC4 (Champion)
BKR6E-11 (NGK)
BKR5E-11 (NGK)
2.0-liter turbo enginePFR6G (NGK)
AT : Automatic transmission MT : Manual transmission

Specifications
12-4
Capacities
Fuel tank
15.9 US gal (60 liters, 13.2 Imp gal)
Engine oil2.5-liter engine model4.2 US qt (4.0 liters, 3.5 Imp qt)
2.0-liter turbo engine model4.8 US qt (4.5 liters, 4.0 Imp qt)
Transmission oil (MT)3.7 US qt (3.5 liters, 3.1 Imp qt)
Transmission oil (AT)10.0 US qt (9.5 liters, 8.4 Imp qt)
Power steering gear fluid0.7 US qt (0.7 liter, 0.6 Imp qt)
Engine coolant2.5-liter engine modelMT7.4 US qt (7.0 liters, 6.2 Imp qt)
AT7.3 US qt (6.9 liters, 6.1 Imp qt)
2.0-liter turbo engine modelMT8.1 US qt (7.7 liters, 6.8 Imp qt)
AT8.0 US qt (7.6 liters, 6.7 Imp qt)
AT : Automatic transmission MT : Manual transmission

Specifications
12-5
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Tires
Tire size
P195/60R15 87HP205/55R16 89V215/45R17 87W
Wheel size15 × 6 JJ16 × 6 1
/2 JJ17
× 7 JJ
PressureFront32 psi (220 kPa, 2.2 kg/cm 2
)33 psi
(230 kPa, 2.3 kg/cm 2
)
Rear29 psi (200 kPa, 2.0 kg/cm 2
)32 psi
(220 kPa, 2.2 kg/cm 2
)
Temporary spare tireSizeT135/70 D16
Pressure60 psi (420 kPa, 4.2 kg/cm 2
)
Wheel alignment
Item
SedanWagon
2.5-liter non-turbo2.0-liter turbo2.5-liter non-turbo2.0-liter turbo
RSWRXTSOUTBACK SPORTWRX
Drive systemAWD
To eFront0 mm (0 in)
Rear0 mm (0 in)
CamberFront–0°15’–0 °25’–0 °10’–0 °05’–0 °20’
Rear–1 °25’–1 °30’–1 °15’–1 °10’–1 °20’

Specifications
12-6
Fuses and circuits Fuse panel located behind the coin trayFuse panelFuse ratingCircuit
115AHeater fan
215AHeater fan
315APower door lock
Remote keyless entry
420ACigarette lighter
Remote controlled rear view mirrors
510ATail light
Parking light
615ASRS airbag
715AFog light
820AABS solenoid
915ARadio
10Empty
1115AEngine ignition sys- tem
SRS airbag
AT control system

Specifications
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Fuse panelFuse ratingCircuit
1210AIllumination bright- ness control
1310ACombination meter
SRS lamp
1410ARear window wiper and washer
1530AWindshield wiper and washer
1620ABrake light
1715AAir conditioner
1815ABackup light
Cruise control
1920AMirror heater
20Empty
21Empty
Fuse panelFuse ratingCircuit
2210A ABS ignition
2320AAccessory power outlet (cargo)
Seat heater

Specifications
12-8
Fuse panel located in the engine compartment
A) FWD socket (AT models except Turbo)
B) Main fuse Fuse panel
Fuse ratingCircuit
120A
Radiator cooling fan (Main)
220ARadiator cooling fan (Sub)
330AABS motor
420ARear window defog- ger
515AHazard warning flasher
Horn
615ATurn signal lights
710AAutomatic transmis- sion control unit
810AAlternator
915AHeadlight (right side)
1015AHeadlight (left side)
1120ALighting switch
1215AClock
Interior light

Specifications
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Bulb chart
Description Wattage Bulb type
Headlight 12V-60/55W 9007 (HB3)
Front fog light 12V-55W —
Front turn signal 12V-21W —
Parking light 12V-5W 168
Side marker light (Front) 12V-5W 168
Side marker light (Rear) 12V-5W 168 Rear combination light Brake light 12V-21W 7440
Brake/tail 12V-21/5W 7443
Turn signal 12V-21W (Amber) —
Tail light 12V-21/5W 7443
Back-up light 12V-21W 7440
High mount stop light Sedan
(in compartment) 12V-18W 921 Sedan
(in rear spoiler) 12V-1.2W —
Wagon 12V-13W 912
License plate light 12V-5W 168
Trunk room light 12V-16W W16W Description Wattage Bulb type
Cargo area light 12V-13W
—
Front ashtray light 12V-1.4W —
Dome light 12V-8W —
Map light 12V-8W —