2007 Subaru Impreza WRX & STI Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2007 Trim Levels Covered: WRX, STI Codes Chassis Code: GD, GG 👋 Introduction Market Position Vehicle Segment: Compact Performance Sedan/Wagon Target...

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Tipo: Coches

Proveedor:

SKU: 314636

Etiquetas: 2007 Car Cars Impreza STI Impreza WRX Misc Subaru

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Descripción

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza

Year:

Trim Levels Covered:

WRX, STI

Codes

Chassis Code:

GD, GG

👋 Introduction

Market Position

Vehicle Segment:

Compact Performance Sedan/Wagon

Target Audience:

Enthusiasts, DIY mechanics, performance tuners

Competitive Analysis

Key Competitors:

Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Ford Focus RS

Key Features

Performance Focus:

Emphasizes the performance aspects of the WRX and STI models

All Wheel Drive:

Details on Subaru's Symmetrical All-Wheel Drive system

Turbocharged Engine:

In-depth coverage of the EJ25 engine and its components

Diy Emphasis:

Written with the do-it-yourself mechanic in mind

📋 Manual Details

Coverage Areas

Coverage Scope:

Complete factory service and repair

Page Count

Estimated Pages:

Over 2000

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Yes (including disassembly, inspection, assembly)

Engine Management ECU:

Yes (including sensor diagnosis, fuel control, ignition timing)

Fuel System:

Yes (including fuel pump, injectors, pressure regulator)

Cooling System:

Yes (radiator, thermostat, water pump, fan)

Exhaust System:

Yes (including catalytic converter, mufflers)

Forced Induction Turbocharger:

Yes (including turbocharger, intercooler, wastegate, blow-off valve)

Transmission Manual:

Yes (including clutch, gearbox, linkages)

Transmission Automatic:

Not applicable for WRX/STI performance variants

Drivetrain AWD:

Yes (including center differential, viscous coupling, rear differential)

Suspension Front:

Yes (struts, control arms, bushings)

Suspension Rear:

Yes (multi-link, trailing arms, bushings)

Steering System:

Yes (rack and pinion, power steering pump)

Brake System Front:

Yes (calipers, rotors, pads, ABS components)

Brake System Rear:

Yes (calipers, rotors, pads, ABS components)

Wheels And Tires:

Yes (specifications, mounting)

Body Structure:

Yes (frame, chassis components)

Body Panels And Trim:

Yes (doors, hood, fenders, bumpers, interior trim)

Glass And Mirrors:

Yes (windshield, side glass, mirrors)

HVAC System:

Yes (heating, ventilation, air conditioning)

Electrical System Charging:

Yes (alternator, battery, wiring)

Electrical System Starting:

Yes (starter motor, ignition switch)

Lighting System:

Yes (headlights, taillights, interior lighting)

Instrumentation And Gauges:

Yes (speedometer, tachometer, warning lights)

Infotainment Audio:

Yes (radio, speakers, amplifier)

Safety Restraints Airbags:

Yes (airbag system diagnosis and replacement)

ABS And Traction Control:

Yes (component testing, diagnostic procedures)

Diagnostic Troubleshooting:

Yes (OBD-II codes, symptom-based diagnostics)

Procedures Included

Routine Maintenance:

Yes (oil changes, filter replacements, fluid checks)

Engine Rebuilds:

Yes (detailed disassembly and reassembly steps)

Transmission Repair:

Yes (clutch replacement, gearbox overhauls)

Brake Service:

Yes (pad/rotor replacement, caliper service, bleeding)

Suspension Replacement:

Yes (strut/shock replacement, control arm bushings)

Electrical Component Testing:

Yes (using multimeter, oscilloscope)

Body Panel Replacement:

Yes (adjustment, mounting, alignment)

HVAC Diagnosis And Repair:

Yes (leak detection, component replacement)

Troubleshooting Flowcharts:

Yes (for common drivability and electrical issues)

Torque Specifications:

Yes (for critical engine, chassis, and drivetrain fasteners)

Technical Depth

Depth:

Comprehensive (from basic maintenance to complete engine and transmission rebuilds)

Diagnostic Capability:

Advanced (including specific fault codes and repair strategies)

📊 Manual Specifications

File Format

Searchability:

Yes, fully searchable text

Printable:

Yes, printable pages

Print Quality

Diagram Resolution:

High-quality, clear diagrams

Text Clarity:

Easy-to-read text sections

Binding Type

Binding Type:

N/A (Digital PDF)

Paper Type

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine Code:

Engine Type:

2.5L Turbocharged Boxer-4

Displacement:

2457 cc

Bore X Stroke:

99.5 mm x 79.0 mm

Compression Ratio:

8.4:1

Valvetrain:

DOHC, 16 valves, Subaru's Variable Valve Lift and Timing (VVL) for STI

Performance

Horsepower Wrx:

230 hp @ 5200 rpm

Torque Wrx:

235 lb-ft @ 3000 rpm

Horsepower Sti:

305 hp @ 6000 rpm

Torque Sti:

290 lb-ft @ 4000 rpm

Fuel System

Fuel Delivery:

Sequential Electronic Fuel Injection (Multi-point)

Fuel Type:

Premium Unleaded Gasoline (91+ Octane Recommended)

Turbocharger:

Twin-scroll TD04 (WRX), IHI VF43 (STI)

Intercooler:

Top-mounted air-to-air

🔧 Transmission

Standard

Type Wrx:

5-speed Manual

Type Sti:

6-speed Manual

Features

Drivetrain Configuration:

Symmetrical All-Wheel Drive (AWD)

Center Differential:

Viscous coupling (WRX), Driver Controlled Center Differential (DCCD) (STI)

Rear Differential:

Limited Slip Differential (LSD) (WRX), Helical LSD (STI)

Fluid Type

Manual Transmission Fluid:

API GL-5, SAE 75W-90 (Refer to manual for specific part numbers/brands)

📐 Dimensions

Exterior

Length:

4415 mm (Sedan), 4485 mm (Wagon)

Width:

1740 mm

Height:

1445 mm (Sedan), 1485 mm (Wagon)

Wheelbase:

2625 mm

Track Width Front:

1490 mm

Track Width Rear:

1490 mm

Weights

Curb Weight Wrx:

~1460 kg (Sedan), ~1500 kg (Wagon)

Curb Weight Sti:

~1505 kg (Sedan)

Gross Vehicle Weight Rating:

Refer to vehicle placard

Wheel Bolt Pattern:

5 x 100 mm

Wheel Size:

17x8 (WRX), 18x8.5 (STI)

Tire Size Wrx:

205/50R17 or 215/45R17

Tire Size Sti:

225/40R18

🛡️ Safety Features

Ratings

NHTSA Front Impact:

4 Stars

NHTSA Side Impact:

5 Stars

IIHS Front Offset Crash Test:

Active Features

Yes (4-wheel ABS)

Traction Control:

Yes (Active Traction Control)

Electronic Stability Control:

Yes (Vehicle Dynamics Control - VDC)

Brake Assist:

Passive Features

Airbags Front:

Driver and Passenger Frontal Airbags

Airbags Side:

Front Side-Impact Airbags

Airbags Curtain:

Front and Rear Side-Curtain Airbags (Optional/Standard depending on trim)

Seatbelts:

3-point front and rear seatbelts with pretensioners and load limiters

Child Seat Anchors:

LATCH System

💡 Technology Features

Infotainment

Audio System:

AM/FM stereo with CD player, 4-6 speakers. Optional premium audio with subwoofer.

Display:

Multi-function display for clock, outside temperature, fuel economy.

Driver Assistance

Cruise Control:

Standard

Anti Lock Brakes:

Standard

Traction Control System:

Standard

Electronic Stability Control:

Standard (VDC)

Connectivity

Auxiliary Input:

Available on some models

Power Windows Locks:

Standard

Keyless Entry:

Available on some trims

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,750 miles or 6 months, whichever comes first (severe service) / Every 7,500 miles or 12 months (normal service) - Refer to manual for exact specifications.

Air Filter Replacement:

Every 15,000 miles or 12 months

Cabin Air Filter Replacement:

Every 15,000 miles or 12 months

Spark Plug Replacement:

Every 30,000 miles (NGK Iridium Recommended)

Coolant Flush:

Every 30,000 miles or 24 months

Transmission Fluid Change:

Every 30,000 miles or 24 months (depending on driving conditions)

Differential Fluid Change:

Every 30,000 miles or 24 months

Fluid Specifications

Engine Oil Type:

SAE 5W-30 Synthetic (API SN or higher recommended)

Engine Oil Capacity:

4.8 US quarts (with filter)

Coolant Type:

Subaru Super Coolant (Blue) or equivalent (50/50 mix with distilled water)

Brake Fluid Type:

DOT 3 or DOT 4

Power Steering Fluid Type:

Subaru ATF-HP or DEXRON-III compatible fluid

Known Issues

Ej25 Head Gaskets:

While less common in later models of this generation, early EJ25 engines were prone to head gasket failure. Manual covers diagnosis and replacement.

Turbocharger Failures:

Can be susceptible to failure if oil starvation occurs or due to high-performance use. Manual details inspection and replacement.

Clutch Wear:

Performance driving can accelerate clutch wear. Manual provides clutch inspection and replacement procedures.

Suspension Bushings:

Can degrade over time, leading to noise and imprecise handling. Manual covers bushing inspection and replacement.

📚 Vehicle History

Brand Heritage

Subaru Legacy:

Direct lineage from Subaru's rally heritage, particularly the Legacy RS

Model Evolution

Third Generation Gd Gg:

Introduced for the 2002 model year, the 'bugeye' (02-03) transitioned to 'blobeye' (04-05) and finally 'hawkeye' (06-07) for this generation.

Model Updates 2007:

The 2007 model received updated styling (hawkeye) and minor suspension tuning.

Rally Sport Heritage:

The Impreza WRX and STI are homologation specials directly derived from Subaru's World Rally Championship (WRC) successes.

Production

Manufacturing Plant:

Gunma Prefecture, Japan

Production Years Gd Gg:

2002-2007

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

The Impreza WRX/STI has frequently appeared on Car and Driver's 10Best lists in previous generations, recognized for its performance and value.

Rally Performance:

Consistent performance in global rally championships contributes to the model's enthusiast appeal and perceived durability.