SUBARU IMPREZA STI RS WRX Full Service & Repair Manual 2006-2007

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🏷️ Basic Information Identification Make: Subaru Model: Impreza Trim Level: WRX STI RS Model Years Covered: 2006, 2007 Codes Chassis Codes: GDB-F (2006), GDB-H (2007) Engine Codes: EJ257 (2.5L Turbocharged Boxer) 👋 Introduction Market Position Positioning: The Subaru Impreza WRX STI RS of the 2006-2007 model years represented the pinnacle of Subaru's rally-bred performance offerings for that generation, targeting enthusiasts seeking a potent and capable all-wheel-drive sports sedan. Competitive Analysis Competitors: Competed directly with vehicles like the Mitsubishi Lancer Evolution, Mitsubishi Eclipse GT, Ford Focus SVT, Volkswagen Golf GTI, and other performance-oriented compact and mid-size sedans/hatchbacks. Key Features Performance Attributes: Symmetrical All-Wheel Drive, turbocharged Boxer engine, performance-tuned suspension, powerful Brembo brakes, DCCD (Driver Controlled Center Differential), aggressive styling, rally-inspired heritage. Manual Value Proposition: Provides comprehensive, factory-authorized procedures and specifications essential for maintaining, diagnosing, and repairing these high-performance vehicles, ensuring accuracy and preventing costly mistakes. 📋 Manual Details Coverage Areas Primary Coverage: Complete Factory Service & Repair Workshop Secondary Coverage: Servicing, Diagnostics, Troubleshooting, Reassembly Page Count Estimated Page Count: 2000+ Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine removal/installation, cylinder head, block, crankshaft, pistons, connecting rods, timing belt/chain, lubrication system, cooling system, fuel injection system, turbocharger system, emission control systems (PZEV, California/Federal variations), engine diagnostics. Engine Electrical: Ignition system, starting system, charging system, ECU (Engine Control Unit) operation, sensors (MAF, MAP, O2, crank, cam), actuators, engine wiring diagrams. Transmission: 6-speed manual transmission (TY856WB1AA - DCCD equipped), removal/installation, internal components, clutch system, hydraulic clutch operation, shift mechanism, transmission fluid specifications, differential service (front, center, rear). Drivetrain: All-Wheel Drive (AWD) system, center differential control (DCCD), propeller shaft, rear differential, drive axles, wheel bearings. Suspension: Front and rear suspension components, struts, springs, control arms, sway bars, bushings, alignment procedures, specifications, and troubleshooting. Steering: Power steering system, steering gear, steering column, wheel alignment specifications, troubleshooting. Brakes: Front and rear brake systems (Brembo calipers standard on STI), disc brake service, rotor replacement, pad replacement, caliper overhaul, ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), brake fluid specifications, bleeding procedures, troubleshooting. Body: Body panel removal/installation, doors, hood, trunk lid, bumpers, interior trim, glass, weatherstripping, body repair procedures, chassis data, rust prevention. Electrical Body: Exterior lighting, interior lighting, power windows, power locks, mirrors, wipers, horn, audio system, HVAC controls, instrument cluster, body control module (BCM), wiring diagrams for all body electrical systems. HVAC: Heating, Ventilation, and Air Conditioning system, refrigerant, compressor, evaporator, condenser, blower motor, diagnostic procedures. Safety Systems: Airbag system (SRS), seat belts, pre-tensioners, system diagnostics, troubleshooting. Procedures Included Maintenance: Oil change, filter replacement, spark plug replacement, fluid checks and changes (coolant, brake, power steering, transmission, differential), air filter replacement, cabin air filter replacement, belt inspection/replacement. Diagnostics: OBD-II (On-Board Diagnostics II) troubleshooting, DTC (Diagnostic Trouble Code) lookup and interpretation, component testing using multimeter and diagnostic tools, intermittent fault diagnosis. Repair Rebuild: Complete engine rebuild procedures, transmission overhaul, clutch replacement, turbocharger service, brake system overhauls, suspension component replacement, steering system repair, electrical component replacement, body panel repair and replacement. Troubleshooting: System-specific troubleshooting flowcharts and guides for common and uncommon issues. Specifications Data: Torque specifications for all fasteners, alignment data, diagnostic data, component specifications, wiring diagrams. Technical Depth Depth: Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers routine maintenance to complete engine/transmission rebuilds and complex diagnostics. 📊 Manual Specifications File Format Format Type: PDF Searchability: Text-searchable PDF for quick information retrieval. Print Quality: High-resolution, printable pages. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Horizontally Opposed (Boxer), Turbocharged, Intercooled Displacement: 2.5 Liters (2457 cc) Bore X Stroke: 99.5 mm x 79.0 mm Compression Ratio: 8.4:1 Valvetrain: DOHC (Dual Overhead Camshafts), 16 valves (4 per cylinder) Performance Horsepower: 300 hp @ 6200 rpm Torque: 300 lb-ft (407 Nm) @ 4000 rpm Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) with Subaru AVCS (Active Valve Control System) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Turbocharger: IHI VF39 Twin-Scroll Turbocharger with Intercooler 🔧 Transmission Standard Type: 6-Speed Manual Transmission Model Code: TY856WB1AA Features Dccd: Driver Controlled Center Differential (DCCD) with automatic and manual modes. Gear Ratios: Provided in manual for each gear and final drive. Fluid Type: API GL-5, SAE 75W-90 Hypoid Gear Oil recommended (refer to manual for specific Subaru part numbers and alternatives). 📐 Dimensions Exterior Length: Approximately 178.4 inches (4531 mm) Width: Approximately 70.1 inches (1780 mm) Height: Approximately 56.1 inches (1425 mm) Wheelbase: Approximately 103.0 inches (2616 mm) Track Width Front: Approximately 59.8 inches (1520 mm) Track Width Rear: Approximately 59.6 inches (1515 mm) Ground Clearance: Approximately 5.6 inches (142 mm) Weights Curb Weight: Approximately 3375 lbs (1531 kg) Gross Vehicle Weight Rating: Approximately 4450 lbs (2018 kg) Towing Capacity: Not Recommended...

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Mots clés: 2006 2007 Car Cars IMPREZA Misc RS STI Subaru WRX

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza

Trim Level:

WRX STI RS

Model Years Covered:

2006, 2007

Codes

Chassis Codes:

GDB-F (2006), GDB-H (2007)

Engine Codes:

EJ257 (2.5L Turbocharged Boxer)

👋 Introduction

Market Position

Positioning:

The Subaru Impreza WRX STI RS of the 2006-2007 model years represented the pinnacle of Subaru's rally-bred performance offerings for that generation, targeting enthusiasts seeking a potent and capable all-wheel-drive sports sedan.

Competitive Analysis

Competitors:

Competed directly with vehicles like the Mitsubishi Lancer Evolution, Mitsubishi Eclipse GT, Ford Focus SVT, Volkswagen Golf GTI, and other performance-oriented compact and mid-size sedans/hatchbacks.

Key Features

Performance Attributes:

Symmetrical All-Wheel Drive, turbocharged Boxer engine, performance-tuned suspension, powerful Brembo brakes, DCCD (Driver Controlled Center Differential), aggressive styling, rally-inspired heritage.

Manual Value Proposition:

Provides comprehensive, factory-authorized procedures and specifications essential for maintaining, diagnosing, and repairing these high-performance vehicles, ensuring accuracy and preventing costly mistakes.

📋 Manual Details

Coverage Areas

Primary Coverage:

Complete Factory Service & Repair Workshop

Secondary Coverage:

Servicing, Diagnostics, Troubleshooting, Reassembly

Page Count

Estimated Page Count:

2000+

Manual Type

Type:

Factory Service Manual (FSM) / Workshop Manual

Language

Language:

English

Format

Format:

Digital Download (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine removal/installation, cylinder head, block, crankshaft, pistons, connecting rods, timing belt/chain, lubrication system, cooling system, fuel injection system, turbocharger system, emission control systems (PZEV, California/Federal variations), engine diagnostics.

Engine Electrical:

Ignition system, starting system, charging system, ECU (Engine Control Unit) operation, sensors (MAF, MAP, O2, crank, cam), actuators, engine wiring diagrams.

Transmission:

6-speed manual transmission (TY856WB1AA - DCCD equipped), removal/installation, internal components, clutch system, hydraulic clutch operation, shift mechanism, transmission fluid specifications, differential service (front, center, rear).

Drivetrain:

All-Wheel Drive (AWD) system, center differential control (DCCD), propeller shaft, rear differential, drive axles, wheel bearings.

Suspension:

Front and rear suspension components, struts, springs, control arms, sway bars, bushings, alignment procedures, specifications, and troubleshooting.

Steering:

Power steering system, steering gear, steering column, wheel alignment specifications, troubleshooting.

Brakes:

Front and rear brake systems (Brembo calipers standard on STI), disc brake service, rotor replacement, pad replacement, caliper overhaul, ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), brake fluid specifications, bleeding procedures, troubleshooting.

Body:

Body panel removal/installation, doors, hood, trunk lid, bumpers, interior trim, glass, weatherstripping, body repair procedures, chassis data, rust prevention.

Electrical Body:

Exterior lighting, interior lighting, power windows, power locks, mirrors, wipers, horn, audio system, HVAC controls, instrument cluster, body control module (BCM), wiring diagrams for all body electrical systems.

HVAC:

Heating, Ventilation, and Air Conditioning system, refrigerant, compressor, evaporator, condenser, blower motor, diagnostic procedures.

Safety Systems:

Airbag system (SRS), seat belts, pre-tensioners, system diagnostics, troubleshooting.

Procedures Included

Maintenance:

Oil change, filter replacement, spark plug replacement, fluid checks and changes (coolant, brake, power steering, transmission, differential), air filter replacement, cabin air filter replacement, belt inspection/replacement.

Diagnostics:

OBD-II (On-Board Diagnostics II) troubleshooting, DTC (Diagnostic Trouble Code) lookup and interpretation, component testing using multimeter and diagnostic tools, intermittent fault diagnosis.

Repair Rebuild:

Complete engine rebuild procedures, transmission overhaul, clutch replacement, turbocharger service, brake system overhauls, suspension component replacement, steering system repair, electrical component replacement, body panel repair and replacement.

Troubleshooting:

System-specific troubleshooting flowcharts and guides for common and uncommon issues.

Specifications Data:

Torque specifications for all fasteners, alignment data, diagnostic data, component specifications, wiring diagrams.

Technical Depth

Depth:

Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers routine maintenance to complete engine/transmission rebuilds and complex diagnostics.

📊 Manual Specifications

File Format

Format Type:

Searchability:

Text-searchable PDF for quick information retrieval.

Print Quality:

High-resolution, printable pages.

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Horizontally Opposed (Boxer), Turbocharged, Intercooled

Displacement:

2.5 Liters (2457 cc)

Bore X Stroke:

99.5 mm x 79.0 mm

Compression Ratio:

8.4:1

Valvetrain:

DOHC (Dual Overhead Camshafts), 16 valves (4 per cylinder)

Performance

Horsepower:

300 hp @ 6200 rpm

Torque:

300 lb-ft (407 Nm) @ 4000 rpm

Fuel System

Fuel Delivery:

Multi-point Fuel Injection (MPI) with Subaru AVCS (Active Valve Control System)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Turbocharger:

IHI VF39 Twin-Scroll Turbocharger with Intercooler

🔧 Transmission

Standard

Type:

6-Speed Manual Transmission

Model Code:

TY856WB1AA

Features

Dccd:

Driver Controlled Center Differential (DCCD) with automatic and manual modes.

Gear Ratios:

Provided in manual for each gear and final drive.

Fluid Type:

API GL-5, SAE 75W-90 Hypoid Gear Oil recommended (refer to manual for specific Subaru part numbers and alternatives).

📐 Dimensions

Exterior

Length:

Approximately 178.4 inches (4531 mm)

Width:

Approximately 70.1 inches (1780 mm)

Height:

Approximately 56.1 inches (1425 mm)

Wheelbase:

Approximately 103.0 inches (2616 mm)

Track Width Front:

Approximately 59.8 inches (1520 mm)

Track Width Rear:

Approximately 59.6 inches (1515 mm)

Ground Clearance:

Approximately 5.6 inches (142 mm)

Weights

Curb Weight:

Approximately 3375 lbs (1531 kg)

Gross Vehicle Weight Rating:

Approximately 4450 lbs (2018 kg)

Towing Capacity:

Not Recommended

🛡️ Safety Features

Ratings

NHTSA Front Impact:

5-Star (Driver and Passenger)

NHTSA Side Impact:

5-Star (Front and Rear Passengers)

IIHS Small Overlap Front:

Good (for models tested under this category)

Active Features

Standard Anti-lock Braking System (ABS)

Standard Electronic Brake-force Distribution (EBD)

Traction Control:

Standard Traction Control System (TCS)

Stability Control:

Standard Vehicle Dynamics Control (VDC)

Passive Features

Airbags:

Driver and front passenger airbags, front side-impact airbags, side curtain airbags.

Seatbelts:

3-point seatbelts with pretensioners and force limiters.

Rollover Protection:

Reinforced body structure designed for rally-inspired performance.

💡 Technology Features

Infotainment

Head Unit:

Factory AM/FM/CD player with optional satellite radio. May include basic MP3 playback. Aftermarket head unit compatibility discussed in manual.

Speakers:

Standard speaker system. Manual provides wiring for upgrades/replacements.

Driver Assistance

Cruise Control:

Standard electronic cruise control.

Dccd:

Driver Controlled Center Differential offers a technological advantage in distributing power for optimal traction and handling in varying conditions.

Connectivity

Aux Input:

May be present on some models for audio input. Manual details wiring and integration.

OBDii Port:

Standard OBD-II port for diagnostic communication and data logging.

🔧 Maintenance

Service Intervals

Oil Change:

Every 3,000-5,000 miles (depending on driving conditions) or 6 months. Use of synthetic oil highly recommended.

Air Filter:

Inspect every 15,000 miles, replace as needed. Replace every 30,000 miles under normal conditions.

Cabin Filter:

Inspect every 15,000 miles, replace as needed. Replace every 30,000 miles under normal conditions.

Spark Plugs:

Replace every 60,000 miles (iridium type).

Timing Belt:

This model uses a timing CHAIN, which is generally designed to last the life of the engine. However, inspection for wear and tension is recommended by the manual.

Fluid Specifications

Engine Oil:

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

Coolant:

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

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid:

Subaru Genuine Power Steering Fluid (PSF) or equivalent Dexron III/Mercon ATF.

Known Issues

Head Gaskets:

While less common on the EJ257 than earlier EJ25s, head gasket failures can still occur. The manual details inspection and replacement procedures.

Turbo Wear:

Premature turbocharger failure can occur due to oil starvation or contamination. Regular oil changes with quality oil are critical. The manual covers turbo diagnostics.

Clutch Wear:

The clutch can wear faster under aggressive driving conditions. Manual covers clutch inspection and replacement.

Piston Ringland Failure:

Can occur on heavily modified or poorly maintained engines, especially with detonation. The manual provides detailed engine specifications for proper operation.

Evap Emissions System Leaks:

Common cause of Check Engine Lights (CEL) due to faulty EVAP components. Manual details EVAP system testing.

📚 Vehicle History

Brand Heritage

Rally Success:

Subaru's long and storied history in the World Rally Championship (WRC) heavily influenced the development and appeal of the Impreza WRX STI, bringing rally-bred technology and performance to the road.

Model Evolution

Third Generation Gdb:

The 2006-2007 models represent the latter part of the 'Blobeye' (2004-2005) and the transition to the 'Hawkeye' (2006-2007) styling for the GDB chassis. The 2006 model year saw significant revisions, including the adoption of the larger 2.5L EJ257 engine and updated DCCD.

Sti Distinction:

The STI (Subaru Tecnica International) variant signifies a higher performance tier, featuring a more powerful engine, upgraded brakes, suspension, and drivetrain components compared to the standard WRX.

Production

Manufacturing Location:

Gunma Plant, Japan

Production Period:

2006-2007

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

Subaru Impreza WRX models, including STI variants, have frequently been recognized on lists such as Car and Driver's '10Best' for their performance and value.

Motor Trend:

Often praised by automotive journalists for its all-wheel-drive capabilities and sporty driving dynamics.

Certifications

Emissions Certification:

California PZEV (Partial Zero Emission Vehicle) and Federal emissions standards met for these model years, detailed within the manual's emissions section.