2008 Subaru Legacy Outback Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: Subaru Model: Legacy Outback Year: 2008 Codes Chassis Code: BP (Wagon) Generation: 4th Generation (2004-2009) 👋 Introduction Market Position Segment: Mid-size Crossover SUV / Sport...

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标签: 2008 Car Cars Legacy Outback Misc Subaru

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Legacy Outback

Year:

Codes

Chassis Code:

BP (Wagon)

Generation:

4th Generation (2004-2009)

👋 Introduction

Market Position

Segment:

Mid-size Crossover SUV / Sport Utility Wagon

Niche:

Known for its standard Symmetrical All-Wheel Drive and wagon-like utility with SUV ground clearance.

Competitive Analysis

Key Competitors:

Toyota RAV4, Honda CR-V, Ford Escape, Nissan Rogue, Mazda CX-5 (though CX-5 is a later competitor).

Key Features

Standard AWD:

The defining feature, offering enhanced traction and stability in various weather conditions.

Wagon Utility:

Combines the driving dynamics of a car with the cargo space and higher ride height of an SUV.

Subaru Engineering:

Horizontally opposed 'Boxer' engines, symmetrical drivetrain layout.

📋 Manual Details

Coverage Areas

General Coverage:

Comprehensive factory service and repair information for the 2008 Subaru Legacy Outback.

Body Styles Covered:

Wagon (Outback variant)

Page Count

Estimated Page Count:

Over 2500 pages (typical for a complete factory manual)

Manual Type

Type:

Factory Service Manual / Workshop Manual

Language

Language:

English

Format

Format:

Digital (likely PDF), Searchable Text Sections with Diagrams

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed procedures for engine disassembly, assembly, diagnosis, and repair including timing belt replacement, valve adjustments, and cooling system servicing.

Engine Electrical:

Wiring diagrams, component testing, ignition system, fuel injection system, emissions control systems, starter, alternator, and battery.

Transmission Manual:

Service and repair procedures for the 5-speed manual transmission, clutch system, and driveline components.

Transmission Automatic:

Service and repair procedures for the 4-speed automatic transmission (e.g., 4EAT), including hydraulic control, torque converter, and planetary gear sets.

Drivetrain AWD:

Subaru's Symmetrical All-Wheel Drive system, including center differential, rear differential, axles, and related components.

Suspension And Steering:

Front and rear suspension component replacement (struts, control arms, bushings), wheel alignment specifications, and power steering system diagnosis and repair.

Brakes:

Brake system service including disc brake component replacement (pads, rotors), hydraulic system bleeding, ABS system diagnosis, and parking brake adjustment.

Body And Interior:

Body panel removal/installation, interior trim, door mechanisms, seat adjustments, glass replacement, and HVAC system servicing.

Electrical System Body:

Lighting systems, wipers, horn, power windows, power door locks, remote keyless entry, and dashboard instrumentation.

Diagnostics And Troubleshooting:

Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, and step-by-step diagnostic procedures.

Procedures Included

Scheduled Maintenance:

Detailed maintenance schedules, fluid change intervals, and inspection points.

Component Replacement:

Step-by-step guides for replacing virtually all major and minor mechanical and electrical components.

Diagnostic Testing:

Procedures for testing sensors, actuators, electrical circuits, and mechanical systems.

Rebuilds:

Detailed instructions for engine, transmission, and differential rebuilds.

Specifications And Tolerances:

Torque specifications for all fasteners, engine clearances, and other critical measurements.

Technical Depth

Depth Level:

Factory-level technical depth, covering everything from routine maintenance to complete engine and transmission overhauls.

Diagram Quality:

High-quality, detailed diagrams and illustrations that clearly depict assembly and disassembly procedures.

Diagnostic Tools:

Information relevant to using Subaru's Select Monitor (SSM) or equivalent diagnostic scan tools.

📊 Manual Specifications

File Format

Digital Format:

Searchability:

Text-searchable for quick access to specific information.

Print Quality

Diagram Clarity:

High resolution, ensuring clarity of technical diagrams.

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Code:

EJ253

Engine Type:

2.5L SOHC Naturally Aspirated Flat-4 (Boxer)

Displacement:

2457 cc (2.5 Liters)

Bore X Stroke:

99.5 mm x 79.0 mm

Compression Ratio:

9.7:1

Horsepower Est:

170 hp @ 5800 rpm (approx.)

Torque Est:

170 lb-ft @ 4000 rpm (approx.)

Performance

Redline:

6500 rpm (approx.)

Fuel System

Fuel Delivery:

Electronic Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline, 87 Octane (minimum recommended)

Emission Controls:

California/Federal emissions compliant models, EGR, catalytic converter.

🔧 Transmission

Standard

Transmission Type Standard:

4-Speed Automatic (4EAT)

AWD System Automatic:

Active Torque Split All-Wheel Drive (with electronically controlled clutch)

Optional

Transmission Type Optional:

5-Speed Manual

AWD System Manual:

Continuous AWD (with viscous coupling center differential)

Features

Automatic Features:

Drive Off Switch (prevents starting in gear), Grade Logic Control.

📐 Dimensions

Exterior

Length:

Approx. 187.8 inches (4770 mm)

Width:

Approx. 70.1 inches (1780 mm)

Height:

Approx. 61.4 inches (1560 mm)

Wheelbase:

Approx. 104.0 inches (2640 mm)

Ground Clearance:

Approx. 8.1 inches (206 mm)

Cargo

Cargo Volume Behind Rear Seat:

Approx. 31.5 cubic feet (892 L)

Cargo Volume With Rear Seat Folded:

Approx. 67.6 cubic feet (1914 L)

Weights

Curb Weight Est:

3400 - 3600 lbs (1542 - 1633 kg) depending on transmission and trim

Towing Capacity Est:

2400 lbs (1089 kg) with appropriate trailer brakes

Payload Capacity Est:

900 - 1000 lbs (408 - 454 kg)

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

4/5 stars

IIHS Frontal Offset Impact:

Good (for similar models in this generation)

Active Features

Standard Anti-lock Braking System

Traction Control:

Standard Traction Control System (TCS)

Electronic Stability Control:

Standard Electronic Stability Control (VDC - Vehicle Dynamics Control)

Passive Features

Airbags:

Front airbags, front side-impact airbags, side curtain airbags (standard on most trims).

Seatbelts:

3-point seatbelts with pretensioners and load limiters.

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/CD stereo system, with optional premium audio and subwoofer. Aux input sometimes available on later models.

Navigation:

Optional factory navigation system available on higher trims.

Driver Assistance

Cruise Control:

Standard cruise control.

All Weather Capability:

Enhanced by standard Symmetrical AWD and increased ground clearance.

Connectivity

Remote Keyless Entry:

Standard on most trims.

Power Accessories:

Power windows, power door locks, power mirrors are standard on most trims.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,750 miles (severe) or 7,500 miles (normal) with synthetic oil, or as per owner's manual. Check oil level regularly.

Engine Oil Type:

0W-20 synthetic recommended (check manual for specific viscosity and API service classification, e.g., API SN or newer).

Engine Oil Capacity:

Approx. 4.8 US quarts (4.5 Liters) with filter change for 2.5L engine.

Engine Air Filter:

Inspect every 7,500 miles, replace as needed or every 15,000 miles.

Cabin Air Filter:

Replace every 15,000 miles or annually.

Transmission Fluid Change Auto:

Inspect every 30,000 miles. Replace approximately every 60,000 miles or as per severe service schedule. Use Subaru ATF-HP.

Transmission Fluid Change Manual:

Replace every 60,000 miles. Use gear oil meeting API GL-5 specification, SAE 75W-90.

Coolant Type:

Subaru Genuine Coolant (Blue) or equivalent silicate-free, long-life coolant.

Coolant Capacity Est:

Approx. 7.5 US quarts (7.1 Liters).

Timing Belt Replacement:

Critical replacement interval: 105,000 miles or 7 years, whichever comes first. Failure can cause severe engine damage.

Fluid Specifications

Brake Fluid:

DOT 3 or DOT 4 brake fluid (check manual for specific type, usually DOT 3).

Power Steering Fluid:

Subaru Genuine Power Steering Fluid or Dexron III/VI ATF.

Differential Fluid Front Rear:

API GL-5, SAE 75W-90.

Known Issues

Head Gaskets:

While less common than on earlier EJ engines, monitor for coolant leaks or milky oil, indicative of potential head gasket failure.

Oxygen Sensors:

Age and mileage can lead to failure of O2 sensors, affecting fuel economy and emissions.

Wheel Bearings:

Front wheel bearings can wear over time, producing humming or grinding noises.

Cv Axle Boots:

Torn CV axle boots can lead to joint failure due to loss of lubrication and contamination.

Radiator And Hoses:

Original plastic-tank radiators and hoses can degrade over time, leading to leaks.

📚 Vehicle History

Brand Heritage

Brand Identity:

Subaru is renowned for its commitment to all-wheel drive technology and boxer engines, often appealing to outdoor enthusiasts and those seeking robust capability.

Model Evolution

Legacy Outback Lineage:

Evolved from the Outback Sport wagon and Subaru's long history of versatile all-wheel-drive vehicles.

Fourth Generation Debut:

Introduced for the 2005 model year, the BP generation (2005-2009) offered a significant redesign with a larger platform and improved refinement over its predecessors.

Production

Manufacturing Location:

Gunma Manufacturing Plant, Japan

🏆 Awards & Recognition

Recognitions

Safety Awards:

Subaru vehicles consistently receive high safety ratings from organizations like IIHS and NHTSA for this generation, reflecting their robust chassis and standard safety features.