How long will a 2009 Subaru Legacy last?
Typically, a well-maintained 2009 Subaru Legacy can reach 200,000 miles or more, with many owners reporting 250,000–300,000 miles or higher. The exact lifespan depends on the engine variant, maintenance history, and driving conditions.
What affects a Legacy’s longevity
The longevity of a 2009 Legacy is shaped by how consistently it’s cared for, the engine type, and the environment in which it’s used. The following factors are the most influential.
- Maintenance history: Regular oil changes, timing/serpentine belt service, coolant flushes, and other routine repairs dramatically affect lifespan.
In short, consistent maintenance and addressing issues promptly are the strongest predictors of long life for a 2009 Legacy.
Engine and variant considerations
Engine choice influences maintenance demands and potential longevity. Here’s a quick look at what to expect by major variant.
2.5i and 2.5GT (2009)
The 2.5-liter flat-four variants are generally durable when properly maintained, but the engine family can be prone to head gasket issues and oil consumption at high mileage if cooling and sealing systems aren’t kept in good condition. The 2.5GT’s turbo adds extra stress on the engine and cooling systems, which means more frequent attention to turbo seals, oil quality, and intercooler cleanliness. Both rely on a timing belt that should be replaced around the 100,000-mile mark to prevent catastrophic engine damage, along with water pump and related seals.
3.0R and other options
The 3.0-liter flat-six (where equipped) tends to be robust but heavier on maintenance costs as mileage climbs. Cooling system integrity and timely maintenance remain important for long life. Across all variants, the core rule is consistent: follow the scheduled belt/chain maintenance, fluid changes, and inspections to maximize durability.
Maintenance to maximize lifespan
Adhering to a disciplined maintenance plan tailored to the engine and drivetrain can push a 2009 Legacy well beyond 200,000 miles. The following practices are foundational.
- Oil changes: Use the recommended grade and change intervals (often 3,000–5,000 miles for conventional oil or up to 7,500–10,000 miles with quality synthetic, per manual).
- Timing belt and accessories: Replace the timing belt around 100,000 miles (plus water pump, seals, and tensioners) to prevent catastrophic damage on belt-driven engines.
- Cooling system: Periodic coolant flushes and thermostat/pump inspections help prevent overheating and head gasket stress.
- Transmission upkeep: Follow the manual for automatic transmission fluid changes and inspections; ensure cooling for transmissions to extend life; manual transmissions require clutch and fluid care.
- Spark plugs and ignition: Replace plugs at manufacturer intervals to maintain efficiency and avoid misfires that strain the engine.
- Brakes, suspension, and steering: Regular inspections and timely replacement of pads, rotors, bushings, and wheel bearings protect handling and safety assets over time.
- Drivetrain fluids: Differential and transfer-case fluids (if applicable) should be checked and changed per guidelines.
- Rust protection: In salted or humid environments, corrosion prevention and underbody cleaning help preserve the chassis.
Following a maintenance schedule that matches the specific engine variant and usage will maximize longevity and minimize costly repairs.
What to watch for as the car ages
As mileage climbs, be vigilant for signs that signal needed service or potential failure. Early detection can prevent major breakdowns.
- Head gasket symptoms: Coolant leaks, white exhaust, milky oil, overheating, or unexplained pressure changes warrant prompt investigation.
- Oil usage or leaks: Rising oil consumption, piston sealing issues, or visible leaks require diagnosis and repair.
- Cooling system problems: Overheating, radiator leaks, a failing water pump, or thermostat failures can jeopardize engine health.
- Transmission wear: Slipping, hard shifts, delayed engagement, or unusual noises indicate potential transmission issues.
- Rust and corrosion: Inspect undercarriage and frame rails, especially in regions with road salt exposure.
Addressing these issues promptly and performing preventive maintenance reduces the risk of abrupt failures and helps extend the vehicle’s useful life.
Summary
A 2009 Subaru Legacy can deliver long service life with attentive care. Most examples that receive regular maintenance—oil and filter changes, belt service, cooling system care, and transmission upkeep—can reach 200,000 miles or more, with many assets pushing toward 250,000–300,000 miles. The exact outcome depends on the engine variant, maintenance discipline, and driving conditions. For those planning to own a Legacy for many years, establish a proactive maintenance routine now and monitor for signs of wear as the car ages.
Is 2009 a good year for Subaru Legacy?
Edmunds says. The 2009 Subaru Legacy isn't great on gas, but it compensates by offering standard all-wheel drive, excellent crash test scores and above-average performance.
How long does a 2009 Subaru Legacy last?
200,000 miles
According to iSeeCars and Kelley Blue Book studies, the Subaru Legacy ranks among the top midsize sedans most likely to reach 200,000 miles. This is further supported by resale value data, which shows that Legacy retains its worth better than many competitors in its class.
Can a Subaru Legacy last 300,000 miles?
Subaru engines are renowned for their reliability and longevity, often lasting between 200,000 and 300,000 miles with proper maintenance.
What is the most common problem with the 2009 Subaru Legacy?
Top 2009 Subaru Legacy Problems
- Technical service bulletin for ABS control module. 14 people have reported this.
- Vibration or Shudder on Acceleration. 9 people have reported this.
- Subaru Legacy head gasket and engine block replacement issues with documented ongoing problems. 2 people have reported this.
