🏷️ Basic Information

Make:

Subaru

Model:

Impreza WRX

Year:

2007

Chassis Code:

GDB

Engine Code Primary:

EJ255

👋 Introduction

Positioning:

The Subaru Impreza WRX of this era was a highly regarded rally-inspired performance sedan, known for its turbocharged Boxer engine, Symmetrical All-Wheel Drive, and agile handling. It competed with cars like the Mitsubishi Lancer Evolution and Volkswagen Golf GTI.

Key Competitors:

Mitsubishi Lancer Evolution, Mitsubishi Eclipse GT, Volkswagen GTI, Mazdaspeed3.

Performance Heritage:

Built on Subaru's rally racing pedigree, offering a potent blend of everyday usability and track-capable performance.

AWD System:

Subaru's signature Symmetrical All-Wheel Drive provided exceptional traction and handling in various conditions.

Engine Layout:

Distinctive Subaru Boxer engine layout for a lower center of gravity.

📋 Manual Details

Coverage Description:

Complete factory service and repair procedures for all aspects of the 2007 Subaru Impreza WRX, including mechanical, electrical, and body systems.

Estimated Page Count:

Approx. 2000+ pages (indicative of comprehensive factory manuals)

Manual Type:

Workshop Service Repair Manual (Full Factory)

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine:

Engine mechanical, lubrication, cooling, fuel injection, ignition, exhaust, turbocharger system, emissions control.

Transmission:

Manual transmission (TY756 series), clutch system, driveline, AWD system, differentials.

Brakes:

Front and rear brake systems (including ABS), hydraulic systems, parking brake.

Steering:

Power steering system, steering column, steering gear.

Suspension:

Front and rear suspension, struts, control arms, anti-roll bars, alignment specifications.

Electrical:

Battery, charging system, starting system, lighting, instrumentation, audio system, power windows, central locking, body electrical, SRS (Airbag) system, ECU diagnosis.

Bodywork:

Exterior panels, interior trim, doors, windows, bumpers, chassis and frame, corrosion protection, glass replacement.

HVAC:

Heating, ventilation, and air conditioning system.

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections, lubrication.

Troubleshooting:

Diagnostic procedures, symptom-based troubleshooting charts, fault code interpretation.

Repair:

Step-by-step repair instructions for all major components and systems, including disassembly, assembly, and adjustment.

Diagnostics:

OBD-II diagnostics, sensor testing, ECU function checks.

Technical Data:

Torque specifications, clearances, fluid capacities, wiring diagrams, diagnostic specifications.

Depth:

Comprehensive, covering everything from basic maintenance to full engine and transmission rebuilds, advanced electrical diagnostics, and body repair.

📊 Manual Specifications

File Format:

Portable Document Format (PDF)

Printability:

High-resolution, fully printable, allowing users to print specific sections or the entire manual.

Binding Type:

N/A (Digital download - printable)

Paper Type:

N/A (Digital download - printable)

Text Searchable:

Yes, designed for easy navigation and keyword searches.

⚙️ Engine Specifications

Engine Type:

Horizontally Opposed (Boxer) 4-Cylinder, turbocharged

Displacement:

2.5 Liters (2457 cc)

Bore X Stroke:

99.5 mm x 79.0 mm

Compression Ratio:

8.4:1

Valve Train:

DOHC (Dual Overhead Camshafts), 16 valves

Horsepower:

230 hp @ 5200 rpm (approx.)

Torque:

235 lb-ft @ 3000 rpm (approx.)

Fuel Delivery:

Sequential Electronic Fuel Injection (SFI)

Fuel Type:

Premium Unleaded Gasoline (91 Octane or higher recommended)

Turbocharger:

IHI VF43 (Variable Valve Lift and Timing - AVCS on intake cams)

Intercooler:

Top-mounted air-to-air intercooler

🔧 Transmission

Transmission Type:

5-speed Manual Transmission

Transmission Model:

TY756 V6

AWD System Type:

Symmetrical All-Wheel Drive with Viscous Coupling Center Differential and Mechanical Limited-Slip Rear Differential

📐 Dimensions

Length:

173.8 inches (4415 mm)

Width:

68.5 inches (1740 mm)

Height:

56.1 inches (1425 mm)

Wheelbase:

99.4 inches (2525 mm)

Track Width Front:

58.7 inches (1490 mm)

Track Width Rear:

58.3 inches (1480 mm)

Ground Clearance:

5.1 inches (130 mm)

Curb Weight:

3130 lbs (1420 kg) (approx.)

Gross Vehicle Weight Rating:

4400 lbs (1996 kg) (approx.)

Trunk Volume:

11.3 cu ft (320 L) (approx.)

🛡️ Safety Features

NHTSA Front Impact Driver:

5-Star

NHTSA Front Impact Passenger:

5-Star

NHTSA Side Impact Front Seat Occupant:

5-Star

NHTSA Side Impact Rear Seat Occupant:

5-Star

IIHS Moderate Overlap Frontal Offset:

Good

ABS:

Standard Anti-lock Braking System (ABS)

E Brake Force Distribution:

Electronic Brake-force Distribution (EBD)

Traction Control:

Standard Traction Control System (TCS)

Airbags:

Driver and front passenger airbags, front side-impact airbags, side curtain airbags (optional/standard depending on trim)

Seatbelts:

3-point height-adjustable front seatbelts with pretensioners and load limiters, rear 3-point seatbelts.

Body Structure:

Advanced front and rear crumple zones, high-strength steel safety cage.

💡 Technology Features

Audio System:

Standard AM/FM/CD audio system with 4 or 6 speakers. Optional premium audio system available.

Navigation:

Optional factory navigation system available on some trims.

Cruise Control:

Standard electronic cruise control.

Stability Control:

Vehicle Dynamics Control (VDC) available on some models, integrating ABS, TCS, and Active Torque Split AWD.

Auxiliary Input:

3.5mm auxiliary audio input jack available on some models.

OBD Ii:

Full support for OBD-II diagnostic standards, with detailed information on fault codes and sensor data in the manual.

🔧 Maintenance

Oil Change Interval:

Every 3,750 miles or 6 months (severe driving) / 7,500 miles or 12 months (normal driving). Manual details specific conditions.

Engine Air Filter:

Replace every 15,000 miles or 12 months.

Cabin Air Filter:

Replace every 15,000 miles or 12 months.

Spark Plugs:

Replace at 105,000 miles (Iridium type).

Coolant Change:

First change at 30,000 miles or 24 months, then every 30,000 miles or 24 months thereafter. (Check manual for exact Super Coolant type and procedure).

Transmission Fluid Manual:

Inspect at 30,000 miles, replace typically at 60,000 miles (check manual for specific conditions and gear oil type).

Engine Oil:

SAE 5W-30, API GL-4 or GL-5 specification (check manual for exact spec, especially for synthetic).

Engine Oil Capacity:

4.8 US quarts (4.6 liters) with filter change.

Transmission Fluid Manual:

Subaru Extra-S Gear Oil or equivalent (check manual for specific viscosity and type, e.g., 75W-90 GL-5).

Differential Fluid Front:

Subaru Extra-S Gear Oil or equivalent (75W-90 GL-5).

Differential Fluid Rear:

Subaru Extra-S Gear Oil or equivalent (75W-90 GL-5).

Brake Fluid:

DOT 3 or DOT 4.

Coolant:

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

Head Gaskets:

While improved from earlier generations, head gasket leaks can still occur. Manual provides diagnostic and repair procedures.

Clutch Wear:

Heavy use or aggressive driving can lead to premature clutch wear. Manual details clutch inspection and replacement.

Turbo Failure:

Turbocharger failure can occur if oil starvation or overheating happens. Manual covers turbo diagnosis and replacement.

Suspension Bushings:

Wear on suspension bushings can lead to clunks and poor handling. Manual details replacement procedures.

Oil Leaks:

Common leak points include valve cover gaskets and oil cooler seals. Manual guides to locate and repair.

📚 Vehicle History

Heritage Summary:

Subaru has a long history of producing durable and capable vehicles, with a strong heritage in rallying and motorsport that directly influences the WRX models.

Gc8 To Gd Transition:

The 2007 model belongs to the 'GD' generation (second generation) of the Impreza WRX, which saw a redesign from the previous 'GC8' generation, adopting a more modern and rounded styling.

Wrx Sti Distinction:

The WRX is the performance variant, with the more potent WRX STI (Subaru Tecnica International) being a higher-performance model featuring larger turbos, different engines, DCCD, and Brembo brakes, all of which would be detailed in their respective manuals.

Production Years Gd:

2002-2007

Manufacturing Location:

Gunma Plant, Japan

🏆 Awards & Recognition

Ralley Pedigree:

The Impreza WRX is a direct descendant of Subaru's successful World Rally Championship (WRC) cars, inheriting performance and durability traits.