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Subaru

2008 Subaru Impreza Impreza WRX Impreza WRX STi Workshop Repair & Service Manual [Complete & Informative for DIY Repair]

2008 Subaru Impreza Impreza WRX Impreza WRX STi Workshop Repair & Service Manual [Complete & Informative for DIY Repair]

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Vehicle data plateRef 365919
Brand
Subaru
Vehicle
Home and Garden
Models covered
Guns Firearms Weapons, Impreza, Impreza WRX, Impreza WRX STi, Sporting Goods, Sti
Years
2008
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you — re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your model year? Ask us before you buy
🏷️ Basic Information
Identification
Make:
Subaru
Model:
Impreza
Model Variant:
WRX STi
Year:
2008
Codes
Chassis Code:
GE/GH/GR/GV
👋 Introduction
Market Position
Target Audience:
DIY enthusiasts, amateur mechanics, professional technicians
Value Proposition:
Comprehensive and accurate official service information for DIY repair, avoiding inferior alternatives.
Competitive Analysis
Differentiation:
Promises complete coverage and accuracy compared to cheap, incomplete manuals.
Key Features
Delivery Method:
Instant delivery via download link after payment
Customer Support:
Customer satisfaction guaranteed, issues resolved within hours.
📋 Manual Details
Coverage Areas
Manual Coverage:
All models and trims for the 2008 Subaru Impreza, Impreza WRX, and Impreza WRX STi
Page Count
Page Count:
Estimated 3000+ pages (typical for a complete workshop manual)
Manual Type
Manual Type:
Workshop Repair & Service Manual
Language
Language:
English
Format
Format:
PDF (Portable Document Format)
📖 Manual Coverage
Systems Covered
Engine Service:
Complete engine service, disassembly, reassembly, removal, timing chain service, engine firing order
Fuel System Service:
Fuel and lubrication systems, carburetor rebuild/adjustments (if applicable to specific trims), fuel system service
Electrical System Service:
Ignition, charging system, starter, battery, switches, wiring diagrams, wire/cable/hose routing
Chassis Service:
Wheels, brakes, steering, suspension, axles, chassis assembly, U-joint service, CV joint service
Transmission Service:
Gearbox service, gearbox removal and installation, clutch removal and installation
Cooling System Service:
Cooling system diagnostics and repair
Exhaust System Service:
Exhaust system diagnostics and repair
Bodywork:
Bodywork repair and adjustments
General Information:
Includes general information, lubrication points, and oil types.
Procedures Included
Maintenance Procedures:
Periodic maintenance, tune-up procedures, factory maintenance schedules
Repair Procedures:
All factory repair procedures, detailed diagnostic and repair procedures
Troubleshooting:
Fault finding and troubleshooting guides
Torque Specifications:
Detailed tightening torques for all critical fasteners are provided.
Technical Depth
Technical Depth:
Complete DIY repair, professional technician-level information, rebuilds, refurbishments, restorations
Diagnostic Information:
Includes diagnostic trouble codes (DTCs) and troubleshooting flowcharts for various systems.
Illustrations:
Extensive use of diagrams and illustrations to aid in understanding repair procedures.
📊 Manual Specifications
File Format
File Type:
PDF
Cross Platform Compatibility:
Windows, Mac, Linux
Print Quality
Printability:
Printable manual with diagrams
Illustration Quality:
Abundant illustrations, lots of pictures & diagrams
Binding Type
Binding Type:
N/A (Digital Download)
Paper Type
Paper Type:
N/A (Digital Download)
Completeness
Completeness Guarantee:
100% Complete, absolutely no missing pages
⚙️ Engine Specifications
Primary Engine
Engine Type:
Horizontally-opposed (Boxer) turbocharged gasoline engines
Impreza 2.5 I Engine:
2.5L Naturally Aspirated EJ253 (SOHC)
Impreza Wrx Engine:
2.5L Turbocharged EJ255 (DOHC)
Impreza Wrx Sti Engine:
2.5L Turbocharged EJ257 (DOHC, often with a larger turbo and intercooler)
Performance
Wrx Horsepower Est:
Approx. 224 hp @ 5200 rpm
Wrx Torque Est:
Approx. 226 lb-ft @ 4400 rpm
Wrx Sti Horsepower Est:
Approx. 305 hp @ 6000 rpm
Wrx Sti Torque Est:
Approx. 290 lb-ft @ 4000 rpm
Fuel System
Fuel Delivery:
Multi-point fuel injection (sequential)
Fuel Type:
Unleaded gasoline (premium recommended for WRX/STi)
Fluid Specifications
Engine Oil Type Wrx Sti:
SAE 5W-30 or 10W-30 API SG, SH, SJ, SL, or SM (check specific manual for exact specification)
Engine Oil Capacity Est:
Approx. 5.0-5.5 US quarts (with filter change)
🔧 Transmission
Standard
Standard Transmission:
5-speed manual (Impreza 2.5i), 5-speed manual (WRX)
Sti Standard Transmission:
6-speed manual
Optional
Optional Transmission:
4-speed automatic (Impreza 2.5i only)
Features
All Wheel Drive:
Symmetrical All-Wheel Drive (standard on all trims)
Sti Differential:
Driver Controlled Centre Differential (DCCD) on STi models
Fluid Specifications
Manual Transmission Fluid Type:
API GL-4 or GL-5 gear oil, SAE 75W-90 (check specific manual for exact specification)
📐 Dimensions
Exterior
Wheelbase Est:
103.2 inches
Length Est:
173.8 - 179.7 inches (depending on body style - sedan/hatchback)
Width Est:
68.5 inches
Height Est:
57.7 - 58.1 inches
Weights
Curb Weight Est:
3050 - 3300 lbs (depending on trim and transmission)
🛡️ Safety Features
Ratings
NHTSA Front Crash Test Rating:
5-Star (for models tested)
IIHS Frontal Offset Rating:
Good (for models tested)
Active Features
Traction Control:
Standard (VDC - Vehicle Dynamics Control often optional or standard on higher trims)
ABS:
Anti-lock Braking System (standard)
AWD:
Symmetrical All-Wheel Drive (standard)
Passive Features
Airbags:
Front, front-side, and curtain airbags (depending on trim)
💡 Technology Features
Infotainment
Infotainment System Base:
Base models featured a single-CD audio system with auxiliary input. Higher trims offered optional premium audio systems with CD changers.
Driver Assistance
Stability Control:
Vehicle Dynamics Control (VDC) was available, often standard on higher trims like the STi.
Connectivity
Bluetooth Availability:
Bluetooth connectivity was typically an optional feature or part of an upgraded audio package.
🔧 Maintenance
Service Intervals
Oil Change Interval Est:
Every 3,750 to 7,500 miles or 6-12 months (depending on driving conditions and oil type)
Engine Air Filter Replacement Est:
Every 15,000 to 30,000 miles
Spark Plug Replacement Est:
90,000 to 105,000 miles (iridium type)
Fluid Specifications
Coolant Type:
Subaru Super Coolant (or equivalent blue long-life coolant), 50/50 mix with distilled water
Brake Fluid Type:
DOT 3 or DOT 4 (check specific manual)
Power Steering Fluid Type:
Subaru Genuine Power Steering Fluid or equivalent (Dexron III compatible ATF might be acceptable, consult manual)
Known Issues
Wrx Sti Headgasket Concern:
While less common in the 2008+ EJ25 engines compared to earlier generations, head gasket integrity is always a point of inspection for turbocharged Subaru engines.
Oil Consumption Turbo Engines:
Some turbocharged engines may exhibit higher oil consumption; regular monitoring is advised.
Clutch Wear Performance Models:
Aggressive driving in WRX and STi models can lead to accelerated clutch wear.
📚 Vehicle History
Brand Heritage
Subaru AWD Heritage:
Subaru is renowned for its pioneering and standard Symmetrical All-Wheel Drive system.
Model Evolution
Third Generation Impreza:
The 2008 model marks the debut of the third generation (GE/GH/GR/GV chassis), featuring a significant redesign.
Wrx Performance Legacy:
The WRX continues Subaru's performance rally heritage, offering accessible turbocharged performance.
Wrx Sti Flagship:
The WRX STi represents the pinnacle of the Impreza line, with enhanced performance and advanced drivetrain technologies.
🏆 Awards & Recognition
Recognitions
Car And Driver તિહાસ:
Subaru WRX models have frequently been featured on Car and Driver's '10Best' lists in previous generations, highlighting their performance credentials.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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