2006 Subaru Legacy

2006 Subaru Legacy

Overview

The 2006 Subaru Legacy, a mid-size sedan and wagon, is generally considered a reliable vehicle, particularly known for its standard all-wheel-drive system and capable boxer engines. This generation (BP/BL) offered a good balance of performance, comfort, and practicality. While most owners report positive experiences, like any vehicle, there are specific areas that have seen more attention from a reliability standpoint. Understanding these potential issues can help prospective buyers and current owners make informed decisions regarding maintenance and repairs. The following data highlights common concerns across various systems, focusing on documented mechanical and electrical faults rather than routine maintenance.

---

Engine

2.5L EJ253 (Naturally Aspirated)

Head Gasket Failure

• Symptoms: Coolant leaks, white smoke from exhaust, overheating, milky oil.
• Solution: Replacement of head gaskets and often associated components like head bolts.
• Cost: $1500 - $3000

Oil Consumption

• Symptoms: Low oil level between changes, blue smoke from exhaust, especially on startup.
• Solution: Can range from piston ring replacement to valve stem seals, depending on the cause.
• Cost: $1000 - $2500

2.5L EJ255 (Turbocharged - GT models)

Turbocharger Failure

• Symptoms: Loss of power, whistling noises, excessive smoke, oil leaks around the turbo.
• Solution: Turbocharger replacement or rebuild.
• Cost: $1000 - $2500

Head Gasket Failure

• Symptoms: Similar to naturally aspirated models: coolant leaks, white smoke, overheating, milky oil.
• Solution: Replacement of head gaskets and associated components.
• Cost: $1800 - $3500

3.0L EZ30D (Naturally Aspirated - H6)

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Transmission

5-Speed Manual Transmission

Clutch Wear

• Symptoms: Slipping clutch, difficulty shifting gears, burning smell.
• Solution: Clutch kit replacement (clutch disc, pressure plate, release bearing).
• Cost: $800 - $1500

4-Speed Automatic Transmission (4EAT)

Harsh Shifting / Slipping

• Symptoms: Jerky gear changes, delayed engagement, slipping between gears.
• Solution: Transmission fluid flush and filter change, or transmission rebuild/replacement if internal damage occurs.
• Cost: $300 - $2500

5-Speed Automatic Transmission (5EAT - GT models)

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Suspension

Standard Chassis

Worn Sway Bar Links/Bushings

• Symptoms: Clunking or rattling noises over bumps, especially at lower speeds.
• Solution: Replacement of sway bar links and/or bushings.
• Cost: $150 - $300

Worn Ball Joints/Tie Rod Ends

• Symptoms: Loose steering feel, clunking noises, uneven tire wear.
• Solution: Replacement of worn ball joints and/or tie rod ends.
• Cost: $300 - $600

Electrical

Body Control Module (BCM)

Intermittent Electrical Gremlins

• Symptoms: Malfunctioning power windows, door locks, interior lights, or dashboard warning lights.
• Solution: Diagnosis and potential reprogramming or replacement of the BCM.
• Cost: $500 - $1000

Alternator

Premature Failure

• Symptoms: Dimming headlights, battery warning light, dead battery.
• Solution: Alternator replacement.
• Cost: $400 - $700

Exterior

Body Panels & Paint

Rust/Corrosion

• Symptoms: Visible rust on wheel arches, rocker panels, and undercarriage, especially in rust-belt regions.
• Solution: Rust repair and repainting, or undercoating for prevention.
• Cost: $200 - $1500+

Headlight Lenses

Clouding/Yellowing

• Symptoms: Reduced headlight visibility, aesthetic degradation.
• Solution: Headlight restoration kit or replacement of headlight assemblies.
• Cost: $50 - $400

Interior

HVAC System

Blend Door Actuator Failure

• Symptoms: Inability to control temperature or direct airflow (e.g., stuck on defrost).
• Solution: Replacement of the blend door actuator.
• Cost: $200 - $400

Seat Fabric

Wear and Tear

• Symptoms: Fraying, thinning, or tearing of fabric on driver’s seat bolsters.
• Solution: Seat cover installation or professional upholstery repair.
• Cost: $100 - $500

---

Summary Verdict

The 2006 Subaru Legacy is a generally dependable vehicle, especially for those seeking all-wheel-drive capability. The most significant recurring issues tend to be head gasket failures, particularly on the 2.5L engines, and oil consumption. Turbocharged models (GT) can also experience turbocharger issues. Automatic transmissions, especially the older 4-speed, may develop shifting problems. Electrical gremlins related to the BCM and premature alternator failure are also noted. Exterior rust can be a concern in certain climates. Despite these potential drawbacks, many owners find the Legacy to be a robust and enjoyable car when properly maintained. Addressing potential head gasket issues proactively can significantly enhance long-term reliability.