2007 SUBARU IMPREZA WRX engine

12-4Specifications
&Capacities
Fuel tank 15.9 US gal (60 liters, 13.2 Imp gal)
Engine oil 4.2 US qt (4.0 liters, 3.5 Imp qt)
Transmission oil (MT) 5-speed 3.7 US qt (3.5 liters, 3.1 Imp qt)
6-speed 4.3 US qt (4.1 liters, 3.6 Imp qt)
Front differential gear oil (AT) 1.3 US qt (1.2 liters, 1.1 Imp qt)
Rear differential gear oil WRX-STI 1.1 US qt (1.0 liters, 0.9 Imp qt)
Others 0.8 US qt (0.8 liters, 0.7 Imp qt)
Transmission fluid (AT) 10.0 US qt (9.5 liters, 8.4 Imp qt)
Power steering fluid 0.7 US qt (0.7 liter, 0.6 Imp qt)
Engine coolant Non-turbo engine MT7.4 US qt (7.0 liters, 6.2 Imp qt)
AT 7.3 US qt (6.9 liters, 6.1 Imp qt)
Turbo engine MT 8.1 US qt (7.7 liters, 6.8 Imp qt)
AT 8.0 US qt (7.6 liters, 6.7 Imp qt)
AT: Automatic transmission
MT: Manual transmission

12-6Specifications
Fuses and circuits &Fuse panel located behind the coin trayFuse
panel Fuse
rating Circuit
1 15A .Heater fan
2 15A .Heater fan
3 15A .Power door lock
. Remote keyless entry
4 20A .Power outlet (front)
. Remote controlled rear
view mirrors
5 10A .Tail light
. Parking light
6 15A .SRS airbag
7 15A .Fog light
8 20A .ABS solenoid
9 15A .Radio
10 Empty
11 15A .Engine ignition system
. SRS airbag
. AT control system
12 10A .Illumination brightness
control

12-8Specifications
&Fuse panel located in the engine compartment
A) FWD socket (AT models except Turbo)
B) Main fuse
C) Engine sensor (Non-turbo models) Fuse
panel Fuse
rating Circuit
1 20A .Radiator cooling fan
(Main)
2 20A .Radiator cooling fan
(Sub)
3 30A .ABS motor
4 20A .Rear window defogger
5 15A .Hazard warning flasher
. Horn
6 15A .Turn signal lights
7 10A .Automatic transmission
control unit
8 10A .Alternator
9 15A .Headlight (right side)
10 15A .Headlight (left side)
11 20A .Lighting switch
12 20A .Clock
. Interior light
13 10A .Secondary air combina-
tion valve (Turbo models only)

CenterConsole .................................................................. 6-4
Ventilators ............................................................... 4-3
Center and side ventilators ............................................ 4-3
Changing Flat tire ................................................................... 9-4
Oil and oil filter ...................................................... 11-9
Charge warning light .................................................. 3-16
CHECK ENGINE warning light/Malfunction indicator lamp ...................................................................... 3-16
Checking Brake pedal free play ............................................ 11-27
Brake pedal reserve distance ................................. 11-28
Clutch function ...................................................... 11-28
Clutch pedal free play ............................................ 11-28
Engine oil level ...................................................... 11-8
Fluid level ............................... 11-20, 11-24, 11-25, 11-26
Gear oil level ........................................................ 11-22
Child restraint systems ............................................... 1-22
Installation with A/ELR seatbelt ................................ 1-25
Lower and tether anchorages .................................. 1-29
Child safety .................................................................... 5
Locks ................................................................... 2-18
Chime Key ........................................................................ 3-5 Seatbelt ........................................................ 1-11, 3-14
Cleaning
Aluminum wheels ................................................... 10-3
Interior .................................................................. 10-5
Ventilation grille ..................................................... 4-11 Climate control system
Automatic ............................................................... 4-8
Manual ................................................................... 4-3
Clock ........................................................................ 3-22
Clutch Fluid ................................................................... 11-26
Pedal .................................................................. 11-28
Coat hook. .................................................................. 6-9
Coin tray .................................................................... 6-4
Cooling system ........................................................ 11-12
Corrosion protection ............................................ 8-10, 10-4
Cruise control ............................................................ 7-26
Set indicator light .................................................... 3-20
Cruise control indicator light ......................................... 3-20
Cup holder ................................................................. 6-5
Front passenger ’s.................................................... 6-5
Rear passenger ’s .................................................... 6-6
D
Daytime running light system ....................................... 3-23
Differential gear oil
Front ................................................................... 11-21
Rear ................................................................... 11-22
Dimensions ................................................................ 12-2
Disarming the system ................................................. 2-15
Disc brake pad wear warning indicators ........................ 7-21
Dome light .................................................................. 6-2
Door
Locks ..................................................................... 2-4
Open warning light. ................................................. 3-19
Drive belts ............................................................... 11-18 Index
14-3

14-4Index
Driver ’s Control Center Differential ............................... 7-12
Auto indicator light ................................................. 3-20
Indicator light ......................................................... 3-21
Driving All-Wheel Drive vehicle ........................................... 3-19
Car phone/cell phone .................................................. 7
Drinking ..................................................................... 6
Drugs ........................................................................ 6
Foreign countries ..................................................... 8-4
Pets .......................................................................... 7
Snowy and icy roads ................................................ 8-9
Tips........................................................ 7-10, 7-12, 8-5
Tired or sleepy. ........................................................... 7
E
Electrical system ........................................................ 12-3
Electronic Brake Force Distribution (EBD) system ........................................................... 3-18, 7-23
Emergency Locking Retractor (ELR) ............................. 1-11
Engine Compartment overview ........................................... 11-6
Coolant ................................................................ 11-13
Exhaust gas (Carbon monoxide) ............................ 6, 8-2
Hood .................................................................... 11-4
Oil........................................................................ 11-8Overheating .......................................................... 9-11
Starting ................................................................... 7-7
Stopping ................................................................. 7-8
Exterior care .............................................................. 10-2 F
Flat tires
..................................................................... 9-4
Floor mat .................................................................... 6-9
Fluid level Automatic transmission ......................................... 11-20
Brake .................................................................. 11-25
Clutch ................................................................. 11-26
Power steering ..................................................... 11-24
Front
Differential gear oil ................................................ 11-21
Fog light .............................................................. 11-49
Seatbelt pretensioners ............................................ 1-19
Seats ..................................................................... 1-2
Turn signal light .................................................... 11-49
Fuel ........................................................................... 7-2
Economy hints ........................................................ 8-2
Filler lid and cap ...................................................... 7-4
Gauge ............................................................ 3-8, 3-12
Requirements ......................................................... 7-2
Fuses ..................................................................... 11-42
Fuses and circuits ...................................................... 12-6
G
GAWR (Gross Axle Weight Rating) ............................... 8-14
Glove box ................................................................... 6-4
GVWR (Gross Vehicle Weight Rating) ... ........................ 8-14
H
Hazard warning flasher .......................................... 3-6, 9-2
Head restraint adjustment ............................................. 1-4
Rear ...................................................................... 1-7

14-6Index
M
Main fuse ................................................................. 11-44
Maintenance
Precautions ........................................................... 11-3
Schedule .............................................................. 11-3
Seatbelt ................................................................ 1-18
Tools .................................................................... 9-16
Manual Climate control system ............................................. 4-3
Transmission oil .................................................... 11-19
Transmission-5 speeds ........................................... 7-11
Transmission-6 speeds ............................................. 7-9
Map light ..................................................................... 6-2
Maximum load limits ................................................... 8-20
Meters and gauges .............................................. 3-6, 3-11
Mirrors ...................................................................... 3-32
Moonroof .................................................................. 2-24
N
New vehicle break-in driving .......................................... 8-2
O
Odometer/Tripmeter ............................................. 3-7, 3-11
Off road driving ............................................................ 8-6
Oil filter ..................................................................... 11-9
Oil level
Engine .................................................................. 11-8
Front differential gear (AT vehicles) ......................... 11-21
Manual transmission .............................................. 11-19
Rear differential .................................................... 11-22
Oil pressure warning light ............................................ 3-16 Outside mirrors
.......................................................... 3-33
Outside temperature indicator ............................... 3-9, 3-13
Overheating engine .................................................... 9-11
P Parking Brake .................................................................... 7-24
Brake stroke ........................................................ 11-30
Light switch ........................................................... 3-25
Tips ...................................................................... 7-25
Parking your vehicle ................................................... 7-24
Periodic inspections ..................................................... 8-4
Power
Door locking switch .................................................. 2-6
Steering ................................................................ 7-20
Steering fluid ........................................................ 11-24
Windows ............................................................... 2-18
Precautions against vehicle modification ................ 1-22, 1-57
Preparing to drive ........................................................ 7-6
Printed antenna ........................................................... 5-2
R Rear Combination lights ................................................ 11-49
Gate ............................................................. 2-23, 9-14
Seats ..................................................................... 1-6
Viscous limited slip differential .................................. 7-20
Rear differential Gear oil ............................................................... 11-22
Oil temperature warning light ................................... 3-17

14-8Index
Specifications ............................................................ 12-2
Speedometer ....................................................... 3-7, 3-11
SRS
Frontal airbag ........................................................ 1-39
Side airbag ........................................................... 1-50
SRS airbag (Supplemental Restraint System airbag) ... 4, 1-35
SRS airbag system
Monitors. ............................................................... 1-55
Servicing ............................................................... 1-56
Warning light ......................................................... 3-14
Starting the engine ....................................................... 7-7
State emission testing (U.S. only) .................................. 7-5
Steering wheel
Power ................................................................... 7-20
Tilt ....................................................................... 3-35
STI front lip spoiler ..................................................... 8-28
Stopping the engine ..................................................... 7-8
Storage compartment ................................................... 6-4
Sun shade ................................................................ 2-26
Sun visors ................................................................... 6-3
Supplemental Restraint System airbag (SRS) ................ 1-35
Synthetic leather upholstery ........................................ 10-5
T
Tachometer ......................................................... 3-7, 3-12
Temperature gauge .............................................. 3-8, 3-13
Temperature warning light (AT OIL TEMP) ..................... 3-17
Temporary spare tire .................................................... 9-2
Tie-down hooks ......................................................... 9-12
Tilt steering wheel ...................................................... 3-35 Tire
Chains .................................................................. 8-11
Inspection ............................................................ 11-30
Pressures and wear .............................................. 11-31
Replacement. ....................................................... 11-34
Rotation .............................................................. 11-34
Tires ......................................................................... 12-5
Types .................................................................. 11-30
Tires and wheels ...................................................... 11-30
Top tether anchorages ................................................ 1-32
Towing ...................................................................... 9-11
All wheels on the ground ......................................... 9-14
Flat-bed truck ......................................................... 9-13
Tie-down hooks ...................................................... 9-12
Weight .................................................................. 8-20
Trailer
Hitch ..................................................................... 8-17
Hitches .................................................................. 8-23
Towing .................................................................. 8-20
Towing tips ............................................................ 8-25
Trunk lid .................................................................... 2-20
Release handle ...................................................... 2-21
Trunk light ............................................................... 11-52
Turn signal Indicator lights ........................................................ 3-20
Lever .................................................................... 3-24
U
Under-floor storage compartment .................................. 6-12

V
Valet mode................................................................ 2-16
Vanity mirror ................................................................ 6-3
Vehicle Capacity weight ..................................................... 8-13
Identification ......................................................... 12-11
Symbols .................................................................... 3
Ventilator .................................................................... 4-2
W
Warning and indicator lights ........................................ 3-14
Warning light ABS ..................................................................... 3-17
All-Wheel Drive ...................................................... 3-19
Anti-lock Brake System ........................................... 3-17
AT OIL TEMPerature .............................................. 3-17
Brake system ........................................................ 3-18
Charge ................................................................. 3-16
CHECK ENGINE ................................................... 3-16
Door open ............................................................. 3-19
Driver ’s Control Center Differential ........................... 7-12
Intercooler water spray ........................................... 3-19
Low fuel .......................................................... 3-8, 3-12
Oil pressure .......................................................... 3-16
Rear differential oil temperature ............................... 3-17
Seatbelt ................................................................ 3-14
SRS airbag system ................................................ 3-14
Warranties ..................................................................... 1
Warranties and maintenance ....................................... 8-20
Washing ................................................................... 10-2
Waxing and polishing ................................................. 10-3 Wear indicators
........................................................ 11-33
Wheel
Alignment .............................................................. 12-5
Balance ............................................................... 11-33
Replacement. ....................................................... 11-35
Windows ................................................................... 2-18
Windshield Washer fluid. ........................................................ 11-36
Wiper and washer switches ..................................... 3-27
Wiper blades ........................................................ 11-38
Wiper deicer .......................................................... 3-30
Winter driving .............................................................. 8-8
Wiper and washer ...................................................... 3-26 Index
14-9