Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year

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Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 1

SPC-2

Impreza

SPECIFICATIONS

1. Impreza

A: DIMENSION

*1: Model with sunroof

B: ENGINE

C: ELECTRICAL

Model

4 door

5 door

WRX-S, WRX

STI-S, SE

WRX

STI, SE

Overall length

mm (in)

4,580 (180.3)

4,415 (173.8)

Overall width

mm (in)

1,795 (70.7)

Overall height (at C.W.)

mm (in)

1,475 (58.1)

1,470 (57.9)

1,475 (58.1)

1,470 (57.9)

Compartment

Length

mm (in)

1,985 (78.1)

Width

mm (in)

1,475 (58.1)

Height

mm (in)

1,200 (47.2), 1,170 (46.1)

Wheelbase

mm (in)

2,625 (103.3)

Tread

Front

mm (in)

1,530 (60.2)

Rear

mm (in)

1,540 (60.6)

Minimum road clearance

mm (in)

155 (6.1)

150 (5.9)

155 (6.1)

150 (5.9)

Model

2.5 L turbo

(WRX-S, WRX model)

2.5 L high power turbo

(STI-S, STI, SE model)

Engine type

Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine

Valve arrangement

DOHC

Bore × stroke

mm (in)

99.5 × 79.0 (3.92 × 3.11)

Displacement

(cu in)

2,457 (149.94)

Compression ratio

8.4

8.2

Ignition order

1 — 3 — 2 — 4

Idle speed

rpm

700±100

Maximum output

kW (HP)/rpm

198 (265)/6,000

227 (305)/6,000

Maximum torque

N·m (kgf-m, ft-lb)/rpm

330 (33.7, 244)/4,000

394 (40.2, 290)/4,000

Model

2.5 L turbo

(WRX-S, WRX model)

2.5 L high power turbo

(STI-S, STI, SE model)

Ignition timing (at idling)

BTDC

12°±10°

15°±10°

Spark plug

Type and manufacturer

NGK: SILFR6A

Generator

12 V — 110 A

Battery

Type and capacity (5HR)

12 V — 48 AH (55D23L)

CCA

390A

SPC-3

Impreza

SPECIFICATIONS

D: TRANSMISSION

6MT: 6-forward speeds and 1-reverse with synchromesh
5MT: 5-forward speeds and 1-reverse with synchromesh
DSPD: Dry Single Plate Diaphragm

E: STEERING

F: SUSPENSION

G: BRAKE

H: TIRE

Transmission type

6MT

5MT

Clutch type

DSPD

Gear ratio

1st

3.636

3.166

2nd

2.235

1.882

3rd

1.521

1.296

4th

1.137

0.972

5th

0.971

0.738

6th

0.756

—

Reverse

3.545

3.333

Reduction gear (front)

Final reduction

Type of gear

Hypoid

Gear ratio

3.900

Reduction gear (rear)

Transfer reduction

Type of gear

Helical

Gear ratio

1.103

1.000

Final reduction

Type of gear

Hypoid

Gear ratio

3.545

3.900

Type

Rack and pinion

Turns, lock to lock

2.8

Minimum turning
diameter

m (ft)

Curb to curb

11.0 (36.1)

Wall to wall

11.8 (38.7)

Front

Macpherson strut type suspension

Rear

Double-wishbone type suspension

Model

WRX-S, WRX

STI-S, STI, SE

Service brake system

Dual circuit hydraulic with vacuum suspended power unit

Front

Ventilated disc brake

Rear

Disc brake

Ventilated disc brake

Parking brake

Mechanical on rear brakes

Rim size

17 × 8J

18 × 8 1/2J

Tire size

235/45R17 94W

245/40R18 93W

Type

Tubeless, steel belted radial

SPC-4

Impreza

SPECIFICATIONS

I: CAPACITY

J: WEIGHT

Model

WRX-S, WRX

STI-S, STI, SE

Fuel tank

L (US gal, Imp gal)

64 (16.9, 14.1)

Engine oil

Total capacity (at overhaul)

L (US qt, Imp qt)

5.0 (5.3, 4.4)

When replacing engine oil and oil filter

L (US qt, Imp qt)

4.2 (4.4, 3.7)

4.3 (4.5, 3.8)

When replacing engine oil only

L (US qt, Imp qt)

4.0 (4.2, 3.5)

Transmission gear oil

L (US qt, Imp qt)

3.5 (3.7, 3.1)

4.1 (4.3, 3.6)

Rear differential gear oil

L (US qt, Imp qt)

0.8 (0.8, 0.7)

1.0 (1.1, 0.9)

Power steering fluid

L (US qt, Imp qt)

0.7 (0.7, 0.6)

Engine coolant

L (US qt, Imp qt)

7.4 (7.8, 6.5)

7.7 (8.1, 6.8)

Model

4 door

2.5 L DOHC turbo

WRX

WRX-S

5MT

OP code

Curb weight
(C.W.)

Total

kg (lb)

1,455

(3,208)

1,455

(3,208)

1,475

(3,252)

1,475

(3,252)

1,455

(3,208)

1,470

(3,241)

1,470

(3,241)

1,475

(3,252)

1,475

(3,252)

Front

kg (lb)

830

(1,830)

830

(1,830)

840

(1,852)

840

(1,852)

830

(1,830)

835

(1,841)

835

(1,841)

840

(1,852)

840

(1,852)

Rear

kg (lb)

625

(1,378)

625

(1,378)

635

(1,400)

635

(1,400)

625

(1,378)

635

(1,400)

635

(1,400)

635

(1,400)

635

(1,400)

Gross vehicle weight (G.V.W.)

kg (lb)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

1,990

(4,387)

Maximum permissi-
ble axle weight
(G.A.W.)

Front

kg (lb)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

1,020

(2,249)

Rear

kg (lb)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

1,030

(2,271)

Option

Aluminum wheel 18 in
(BBS)

—

Navigation

—

Sunroof

—

HID

—

Front fog light

—

Genuine leather seat

—

Seat heater

—

Cold weather pack-
age

—

Satellite tuner

—

Side airbag
Curtain airbag

SPC-5

Impreza

SPECIFICATIONS

Model

4 door

2.5 L DOHC high power turbo

STI

STI-S

6MT

OP code

Curb weight
(C.W.)

Total

kg (lb)

1,540

(3,395)

1,550

(3,417)

1,550

(3,417)

1,535

(3,384)

1,535

(3,384)

1,550

(3,417)

1,550

(3,417)

1,535

(3,384)

1,535

(3,384)

1,535

(3,384)

Front

kg (lb)

890

(1,962)

890

(1,962)

890

(1,962)

885

(1,951)

885

(1,951)

890

(1,962)

890

(1,962)

885

(1,951)

885

(1,951)

885

(1,951)

Rear

kg (lb)

650

(1,433)

660

(1,455)

660

(1,455)

650

(1,433)

650

(1,433)

660

(1,455)

660

(1,455)

650

(1,433)

650

(1,433)

650

(1,433)

Gross vehicle weight (G.V.W.)

kg (lb)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

2,030

(4,475)

Maximum permissi-
ble axle weight
(G.A.W.)

Front

kg (lb)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

1,050

(2,315)

Rear

kg (lb)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

1,040

(2,293)

Option

Aluminum wheel 18 in
(BBS)

—

Navigation

—

Sunroof

—

HID

—

Front fog light

—

Genuine leather seat

—

Seat heater

—

Cold weather pack-
age

—

Satellite tuner

—

Side airbag
Curtain airbag

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