Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2009 Subaru Legacy Reliability ReportCommon Problems, Repair Costs & Expert Verdict

72/ 100

KeepScore

MODERATE RISK

Grade: C-

A capable AWD sedan hampered by a notorious engine flaw and age-related wear, demanding careful inspection and proactive maintenance.

Full system breakdown + what I would do

Quick Facts · 2009 Subaru Legacy

  • Has 13 NHTSA recalls on record — the most notable involves the air bags:frontal:passenger side:inflator module.
  • Scores 6 points below the strongest nearby year — the 2007 Subaru Legacy earns a 78.
  • The system most likely to surface first: engine head gaskets (2.5l sohc) (major severity).

Should You Buy the 2009 Subaru Legacy?

The 2009 Subaru Legacy, while offering dependable all-wheel drive and a comfortable ride, faces significant reliability challenges, particularly concerning its 2.5L engine's head gaskets. This isn't a 'set it and forget it' vehicle; expect consistent maintenance and be prepared for potential high-cost repairs if critical issues are ignored or haven't been previously addressed.

The 2009 Subaru Legacy, particularly with the 2.5L engine, carries significant inherent risks due to its well-documented head gasket issues. While its AWD system, safety, and driving dynamics are commendable, a purchase demands a meticulous pre-inspection and a strong budget for immediate and future maintenance. If…

Best Model Years

2008-2009 (H6 3.0R models), 2010-2012 (redesigned, improved 2.5L, though still SOHC)

Years to Avoid

2000-2009 2.5L SOHC models without documented head gasket repair, due to the high likelihood of costly failures.

Biggest Strengths

  • Standard Symmetrical All-Wheel Drive system
  • Good handling and comfortable ride
  • Robust frame and excellent crash test ratings

Top Risk Areas

The systems that tend to fail first on the 2009 Subaru Legacy, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.

1
Engine Head Gaskets (2.5L SOHC)major~80,000-140,000 mi

External coolant and/or oil leaks from the cylinder head gaskets are widespread on the 2.5L SOHC EJ253 engine, often leading to slow coolant loss or oil seepage. If left unaddressed, coolant loss can cause overheating and serious engine…

2
Power Steering Systemmoderate~90,000-150,000 mi

Leaks from the power steering pump, hoses, and steering rack are common as seals and lines degrade over time. This leads to low fluid levels, groaning noises, and potential loss of power assist.

3
Wheel Bearingsmoderate~70,000-130,000 mi

Premature failure of front and especially rear wheel bearings is a known issue, causing a distinct humming or grinding noise that worsens with speed. This is a common wear item that requires replacement for safe operation.

Full repair-cost ranges, fix-before-you-buy notes, and inspection checklists are in the report.

2009 Subaru Legacy Mileage Danger Zones

The mileage windows when the 2009 Subaru Legacy most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.

30,000

Low Risk Zone

At this mileage, the vehicle is still relatively new. Focus on routine oil changes, tire rotations, and general fluid checks. Issues are rare and typically covered by the original warranty.

60,000

Maintenance Zone

This mileage brings important service intervals, including spark plugs and potentially transmission fluid. Pay attention to early signs of wear, like suspension noises or subtle fluid leaks, which can become larger problems.

90,000

Elevated Risk Zone

Critical for 2.5L owners, this is where head gasket leaks often manifest. The timing belt service is looming. Neglecting these can lead to significant engine damage. Inspect for rust, especially on components like brake lines and suspens…

120,000+

High Risk Zone

Beyond the critical 105k timing belt service, major components like catalytic converters, A/C compressors, and potentially the transmission itself become higher risk. Rust can be significant. The longevity here depends heavily on prior m…

2009 Subaru Legacy Ownership Cost Outlook

What it typically costs to keep the 2009 Subaru Legacy on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.

Annual Maintenance

$400-600

Moderate Repairs

$500-1,500 occasionally

How Long Does the 2009 Subaru Legacy Last?

For any 2009 Legacy, prioritize models with detailed service records showing the timing belt service completed around 105,000 miles. For 2.5L SOHC models, a documented head gasket replacement with updated multi-layer steel gaskets significantly enhances its long-term viability, making higher mileage examples less ri…

What 2009 Subaru Legacy Owners Actually Say

What Owners Love

  • Reliable Symmetrical AWD system provides excellent traction in all weather.
  • Comfortable ride quality and composed handling, feeling more premium than its class.
  • Spacious interior for its size, with good rear legroom.
  • Strong safety ratings and robust construction inspire confidence.

Common Frustrations

  • Frequent concern and cost associated with 2.5L engine head gasket failures.
  • Interior plastics can scratch easily, and dashboards are prone to cracking.
  • Fuel economy is average for its class, especially with AWD.
  • Some owners report excessive road noise at highway speeds.

Who Should Buy the 2009 Subaru Legacy?

Best For

  • Buyers in snowy or wet climates needing reliable AWD.
  • Individuals seeking a safe, comfortable daily driver with good handling.
  • Drivers willing and able to perform or budget for proactive maintenance and known repairs.

Not Ideal For

  • Owners who want a 'set it and forget it' low-maintenance vehicle.
  • First-time car buyers with limited repair budgets.

How the 2009 Subaru Legacy Compares to Rivals

While offering superior AWD to most mid-size sedans, the 2009 Legacy trails competitors like the Accord and Camry in long-term engine reliability due to its notorious head gasket issues. It generally offers a more engaging drive than the Camry and better build quality than man…

More Reliable Than

  • Nissan Altima (earlier CVTs)
  • Chrysler Sebring
  • Ford Fusion (first generation)

Comparable To

  • Mazda 6 (first generation)
  • Volkswagen Passat (B6 generation)

NHTSA Recalls

13 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (including STI), 2003-2014 Legacy and Outback, and 2006 Saab 9-2X vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Subaru of America, Inc. (Subaru) is recalling certain 2009-2013 Forester, 2003-2006 Baja, 2004-2011 Impreza, 2004-2014 WRX (STI included), 2003-2014 Legacy and Outback, and 2005-2006 Saab 9-2X vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

What breaks on the 2009 Subaru Legacy?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Subaru Legacy by Year

Compare KeepScores across nearby years of the Subaru Legacy. Click any year for its full report.

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Frequently Asked Questions

Full Report

2009 Subaru Legacy

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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