🏷️ Basic Information

Make:

Subaru

Model:

Legacy

Year:

2010

Chassis Code:

BM/BR Series

Engine Codes:

EJ253 (2.5L Naturally Aspirated), EJ255 (2.5L Turbocharged)

👋 Introduction

Segment:

Mid-size sedan and wagon.

Target Audience:

Individuals seeking reliable, all-wheel-drive transportation, often families or those in varied weather conditions.

Competitors:

Toyota Camry, Honda Accord, Mazda6, Ford Fusion, Nissan Altima.

Standard AWD:

Symmetrical All-Wheel Drive as standard across all trims, a key differentiator.

Engines:

Offers both naturally aspirated and turbocharged Boxer engine options.

Safety:

Generally strong safety ratings, with Subaru's focus on occupant protection.

Utility:

Essential for diagnosing, repairing, and maintaining the 2010 Subaru Legacy to factory standards.

📋 Manual Details

Coverage:

Complete workshop and repair service manual for the 2010 Subaru Legacy.

Pages:

Hundreds (estimated 2000+ pages for comprehensive factory manual)

Type:

Workshop Service Manual / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Engine mechanical, engine management, lubrication, cooling, fuel, ignition, emission control systems.

Transmission:

Manual and automatic transmission systems, drivetrain components (axles, driveshafts).

Brakes:

Hydraulic brake system, parking brake, ABS, EBD, brake component diagnosis and repair.

Suspension Steering:

Front and rear suspension, steering system, wheel alignment.

Electrical:

Battery, charging system, starting system, lighting, instrumentation, body electrical, power accessories, HVAC controls, engine control modules (ECU), transmission control modules (TCM).

Body Chassis:

Body structure, exterior panels, interior trim, doors, windows, security systems, chassis components.

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, spark plug service, brake pad/rotor replacement.

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs), diagnostic procedures for all major systems.

Repair:

Step-by-step repair procedures for all components, including engine rebuild, transmission overhaul, suspension component replacement, electrical system repairs.

Technical Specifications:

Torque specifications, clearances, fluid capacities, electrical diagrams, component data.

Depth:

Comprehensive, covering basic maintenance to advanced diagnostics and full component overhauls.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content within the PDF for quick information retrieval.

Printability:

Printable pages for workshop use.

Quality:

High-resolution, clear diagrams and text (typical of official factory manuals).

Binding:

N/A (Digital PDF Format)

Paper:

N/A (Digital PDF Format)

⚙️ Engine Specifications

2.5I:

EJ253, 2.5L Boxer-4, Naturally Aspirated

2.5 Gt:

EJ255, 2.5L Boxer-4, Turbocharged

2.5I Horsepower:

Approx. 170 hp @ 5600 rpm

2.5I Torque:

Approx. 170 lb-ft @ 4400 rpm

2.5 Gt Horsepower:

Approx. 265 hp @ 6000 rpm

2.5 Gt Torque:

Approx. 247 lb-ft @ 3600 rpm

Fuel Delivery:

Sequential multi-point fuel injection (MPI)

Fuel Type:

Unleaded gasoline

ECU Type:

Denso or Hitachi ECU (specific model varies)

Timing Belt Or Chain:

Timing Chain (EJ253, EJ255) - Generally requires inspection, not routine replacement like belts.

🔧 Transmission

2.5I:

5-speed Manual Transmission or 4-speed Automatic Transmission

2.5 Gt:

5-speed Manual Transmission or 5-speed Automatic Transmission (with paddle shifters)

AWD System:

Symmetrical All-Wheel Drive with Variable Valve Timing (VVT) on some automatic transmissions and Active Torque Split AWD on manual transmissions.

Automatic Transmission Fluid:

Subaru ATF HP (or equivalent DEXRON III/MERCON compatible fluid for older spec models, but HP is preferred for this generation).

Manual Transmission Fluid:

Subaru Gear Oil Extra LPS API GL-5 75W-90

📐 Dimensions

Length:

Approx. 190.9 inches (Sedan), 188.4 inches (Wagon)

Width:

Approx. 70.5 inches

Height:

Approx. 57.1 inches (Sedan), 57.7 inches (Wagon)

Wheelbase:

Approx. 109.4 inches

Curb Weight:

Approx. 3300-3700 lbs (depending on trim and drivetrain)

🛡️ Safety Features

NHTSA Front Impact:

5-Star (Driver & Passenger)

NHTSA Side Impact:

5-Star (Front & Rear Passenger)

IIHS Top Safety Pick:

Yes (for many configurations)

ABS:

Standard Anti-lock Braking System (ABS)

Ebd:

Standard Electronic Brake-force Distribution (EBD)

Vsc:

Standard Vehicle Stability Control (VSC) and Traction Control System (TCS)

Airbags:

Frontal, side-impact, and curtain airbags.

Seatbelts:

Pretensioner and load-limiter seatbelts.

💡 Technology Features

Head Unit:

Base models featured AM/FM/CD audio systems. Higher trims offered premium audio with SiriusXM Satellite Radio and Bluetooth connectivity.

Navigation:

Optional factory navigation system available on select trims.

AWD:

Standard Symmetrical All-Wheel Drive.

Cruise Control:

Standard cruise control, adaptive cruise control not available on this model year.

Bluetooth:

Available on higher trim levels for hands-free calling and audio streaming.

HVAC:

Manual or automatic climate control systems depending on trim level.

🔧 Maintenance

Oil Change:

Every 3,750 miles or 6 months (severe driving) or 7,500 miles or 12 months (normal driving), consult manual for specifics.

Engine Air Filter:

Inspect every 15,000 miles, replace as needed (typically every 30,000 miles).

Cabin Air Filter:

Inspect every 15,000 miles, replace as needed (typically every 15,000-30,000 miles).

Spark Plugs:

Iridium spark plugs, typically replace every 100,000 miles.

Transmission Fluid Automatic:

Inspect every 30,000 miles, replace based on driving conditions (consult manual, often around 60,000 miles).

Transmission Fluid Manual:

Inspect every 30,000 miles, replace around 60,000 miles or as needed.

Engine Oil:

SAE 0W-20 (preferred), SAE 5W-30 (acceptable alternative). API SN or higher certified.

Engine Coolant:

Subaru Super Coolant (Blue) or equivalent HOAT (Hybrid Organic Acid Technology) coolant. 50/50 mix with distilled water.

Brake Fluid:

SAE J1703 or FMVSS No. 116 DOT 3

Head Gaskets:

While Subaru is known for head gasket issues in older models, the EJ253 and EJ255 engines in this generation are generally more robust. However, it's still a potential concern to monitor for coolant leaks or milky oil.

Catalytic Converter:

Potential for premature failure, especially in vehicles driven in harsh climates or with inconsistent maintenance.

Oil Consumption:

Some reports of oil consumption, particularly in higher mileage turbocharged models. Regular oil level checks are recommended.

Suspension Noise:

Sway bar links and bushings can wear over time, leading to clunking noises.

📚 Vehicle History

Subaru Heritage:

Subaru, the automotive division of Subaru Corporation (formerly Fuji Heavy Industries), has a long history dating back to the 1950s, known for its innovative engineering and commitment to safety and reliability.

Legacy Generation:

This 2010 model represents the fifth generation (2010-2014) of the Subaru Legacy, which saw a significant redesign and the discontinuation of the popular wagon variant in North America for this generation.

Manufacturing Location:

Lafayette, Indiana, USA (for North American market)

🏆 Awards & Recognition

IIHS Award:

Consistently recognized by the Insurance Institute for Highway Safety (IIHS) as a 'Top Safety Pick' in its class for its safety performance.

Kbb Best Resale Value:

Subaru models, including the Legacy, often receive recognition from Kelley Blue Book for their strong residual values.

Fuel Economy Ratings:

EPA estimates vary by engine and transmission, but generally competitive within the mid-size segment for AWD vehicles.