🏷️ Basic Information

Make:

Subaru

Model:

Impreza

Year:

2007

Chassis Code:

GD/GG

Generation Code:

Second Generation (GDB/GGB)

👋 Introduction

Segment:

Compact Car / Performance Compact

Usp:

Standard Symmetrical All-Wheel Drive, rally-inspired heritage, turbocharged performance variants (WRX).

Key Competitors:

Honda Civic, Toyota Corolla, Mazda3, Mitsubishi Lancer.

Standard AWD:

Subaru's signature Symmetrical All-Wheel Drive system provides enhanced traction and stability.

Engine Options:

Naturally aspirated and turbocharged Boxer engines known for their low center of gravity.

Performance Variant:

Subaru Impreza WRX and WRX STI offered significant performance upgrades.

📋 Manual Details

Primary Focus:

Repair and Service

Intended Audience:

Professional Technicians and Experienced DIYers

Estimated Pages:

Over 2000

Type:

Factory Service Manual (FSM)

Language:

English

Format:

PDF Download

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, cooling system, lubrication system, exhaust system, turbocharger system (if applicable).

Transmission Drivetrain:

Manual transmission, automatic transmission, all-wheel drive system (Symmetrical AWD), clutch, driveshafts, differentials.

Chassis Suspension:

Front and rear suspension, steering system, wheel alignment specifications, brake system (including ABS), parking brake.

Electrical Electronics:

Battery, charging system, starting system, lighting, instruments, audio system, climate control, power windows/locks, ECU/ECM diagnostics, wiring diagrams.

Body Interior:

Body panels, doors, windows, interior trim, seats, airbags, HVAC system.

Routine Maintenance:

Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspections.

Diagnostic Troubleshooting:

OBD-II codes, symptom-based diagnostics, electrical circuit tracing, component testing.

Repair Replacement:

Engine component overhaul, transmission rebuild, suspension component replacement, brake caliper service, electrical component repair.

Special Procedures:

Turbocharger diagnosis and repair, AWD system service, airbag system safety precautions and service, cylinder head removal and installation.

Depth:

Comprehensive, covering everything from basic adjustments to complete engine and transmission rebuilds, including detailed diagnostic trees and torque specifications.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content

Quality:

High-resolution scans, suitable for printing

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code Naturally Aspirated:

EJ253

Engine Type Naturally Aspirated:

2.5L Naturally Aspirated SOHC Flat-4 (Boxer)

Displacement Naturally Aspirated:

2457 cc

Horsepower Naturally Aspirated:

173 hp @ 5600 rpm

Torque Naturally Aspirated:

166 lb-ft @ 4000 rpm

Engine Code Wrx:

EJ255

Engine Type Wrx:

2.5L Turbocharged DOHC Flat-4 (Boxer)

Horsepower Wrx:

224 hp @ 5200 rpm

Torque Wrx:

226 lb-ft @ 3000 rpm

Engine Code Sti:

EJ257

Engine Type Sti:

2.5L Turbocharged DOHC Flat-4 (Boxer) with Top-Mount Intercooler

Horsepower Sti:

305 hp @ 5600 rpm

Torque Sti:

290 lb-ft @ 4000 rpm

Injection Type:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline (91 Octane or higher recommended for WRX/STI)

Turbocharger Specs:

IHI VF39 (WRX), IHI VF43 (STI), Wastegate-controlled, Top-Mount Intercooler (STI).

🔧 Transmission

Transmission Type Naturally Aspirated:

5-Speed Manual

Transmission Type Wrx:

5-Speed Manual

Transmission Type Sti:

6-Speed Manual

Transmission Type Automatic:

4-Speed Automatic (Not available on WRX/STI)

AWD System:

Symmetrical All-Wheel Drive with Viscous Coupling Center Differential (Manual) or Electronically Controlled Multi-Plate Transfer Clutch (Automatic).

Sti AWD Features:

Driver Controlled Center Differential (DCCD) on STI.

📐 Dimensions

Length:

Approx. 173.4 inches

Width:

Approx. 69.7 inches

Height:

Approx. 57.7 inches (Sedan), 58.1 inches (Hatchback)

Wheelbase:

Approx. 104.0 inches

Track Width Front:

Approx. 59.3 inches

Track Width Rear:

Approx. 59.1 inches

Ground Clearance:

Approx. 6.1 inches

Curb Weight Est:

3000-3300 lbs (Varies by trim and transmission)

Gross Vehicle Weight Rating Est:

4300 lbs

🛡️ Safety Features

IIHS Front Crash Rating:

Good (2007 Model)

IIHS Side Impact Rating:

Good (2007 Model)

NHTSA Overall Rating:

4/5 Stars (NHTSA ratings varied by year and specific test)

ABS:

Standard Anti-lock Braking System

E Brake Force Distribution:

Electronic Brake-force Distribution (EBD)

Traction Control:

Standard Traction Control System (TCS)

Stability Control:

Optional Vehicle Stability Control (VSC) on some trims.

Airbags:

Driver and front passenger airbags, front side-impact airbags, available side curtain airbags (depending on trim).

Seatbelts:

3-point front seat belts with pre-tensioners and load limiters, 3-point rear seat belts.

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system.

💡 Technology Features

Audio System:

Standard AM/FM/CD player with 4 or 6 speakers. Optional premium audio systems and in-dash CD changers were available.

Navigation:

Factory navigation systems were optional on higher trims.

Cruise Control:

Standard cruise control.

Tire Pressure Monitoring:

Tire Pressure Monitoring System (TPMS) was introduced on some models.

Auxiliary Input:

Some models featured an auxiliary audio input jack for connecting portable music players.

Bluetooth:

Bluetooth connectivity was not commonly available from the factory on this model year.

🔧 Maintenance

Oil Change Interval:

Every 3,750 miles or 6 months, whichever comes first (severe conditions), or 7,500 miles/12 months (normal conditions with synthetic oil).

Engine Air Filter Replacement:

Every 15,000-30,000 miles or as needed based on inspection.

Cabin Air Filter Replacement:

Every 15,000-30,000 miles or annually.

Spark Plug Replacement:

Every 30,000-60,000 miles (depending on plug type, platinum recommended).

Timing Belt Replacement:

Not applicable for EJ253/EJ255/EJ257 engines, which use a timing chain.

Transmission Fluid Change:

Manual: Every 30,000-60,000 miles. Automatic: Every 30,000 miles (severe) or 60,000 miles (normal).

Engine Oil Type:

SAE 5W-30 (Synthetic recommended, check owner's manual for exact specification).

Engine Oil Capacity:

Approx. 4.8 US quarts (with filter).

Coolant Type:

Subaru Super Coolant (Blue) or equivalent. Mixture of 50/50 coolant and distilled water.

Transmission Fluid Manual:

SAE 75W-90 Gear Oil (API GL-5).

Transmission Fluid Automatic:

Subaru ATF-HP or equivalent.

Differential Fluid:

SAE 75W-90 Gear Oil (API GL-5).

Head Gaskets:

While not as prevalent as earlier Subaru models, some EJ25 engines (especially naturally aspirated) can still experience head gasket leaks over time. The turbocharged EJ255/EJ257 engines are generally more robust in this regard.

Turbo Wear Wrx Sti:

Turbocharger failures can occur, particularly if maintenance intervals are skipped or if the vehicle is driven aggressively without proper warm-up/cool-down procedures.

Clutch Wear:

Manual transmissions can experience clutch wear, especially in performance models or if used for frequent stop-and-go driving or aggressive acceleration.

Suspension Components:

Like many vehicles, suspension components such as bushings, ball joints, and struts can wear over time, leading to noise or handling issues.

📚 Vehicle History

Heritage:

Subaru, a division of Subaru Corporation, has a long history of producing reliable vehicles with a focus on all-wheel-drive technology and Boxer engines.

Generation 2 Start:

The 2007 model is part of the second generation Impreza (GD/GG chassis), which debuted in 2000.

Styling Updates:

The 2007 model received a significant facelift, introducing the 'hawkeye' front-end design with new headlights, grille, and bumper.

Manufacturing Location:

Japan (Mainly Gunma Plant)

Production Years:

2000-2007 (GD/GG Generation)

🏆 Awards & Recognition

Car And Driver Tenguide:

The Impreza WRX consistently appeared on Car and Driver's 10Best list in previous years, cementing its reputation as a performance benchmark.

Ws Road Car Of The Year:

The Impreza lineage has received various accolades, often recognized for its handling and performance capabilities.