The 2005-2009 Subaru Legacy GT is prone to premature turbocharger failure caused by clogged banjo bolt oil filters, often resulting in total engine destruction.
Reviewed by SubaruReview Editorial Team · Last reviewed 2026-05-15 · Editorial standards
How this problem ranks against the other documented Legacy failures — cost, severity, and DIY difficulty at a glance.
| Problem | Years | Severity | Repair cost | DIY |
|---|---|---|---|---|
| Subaru Legacy GT EJ255 Turbocharger Lubrication Failure (this page) | 2005-2009 | Critical | $1,800–$8,500 | 4/5 |
| EJ25 Head Gasket Failure (2000-2009 Legacy) | 2000-2009 | Major | $1,500–$2,500 | 4/5 |
This is one of several documented Legacy problems we track, and it fits inside the broader Engine Guides guide. If you're weighing repair against replacement, cross-check the Subaru repair-cost database and any open NHTSA recalls on your VIN before booking a shop.
When the turbocharger is starved of oil due to a clogged screen, the internal shaft bearings overheat and disintegrate. This causes the turbine wheel to wobble and strike the housing, sending razor-sharp metal shards directly into the engine's oiling system, which typically destroys the main bearings and crankshaft within minutes.
Small mesh filters (screens) located inside the banjo bolts of the oil feed lines become clogged with carbon deposits, starving the turbocharger bearings of lubrication and leading to catastrophic shaft failure.
Small mesh filters (screens) located inside the banjo bolts of the oil feed lines become clogged with carbon deposits, starving the turbocharger bearings of lubrication and leading to catastrophic shaft failure.
National average $1,800–$8,500. Low end reflects DIY turbo replacement and oil system flush. High end reflects a full engine long-block replacement at a dealership if the turbo sends metal shards into the bearings.
Difficulty 4/5. Replace the failed turbocharger (often upgraded to a VF52 or BNR unit), remove all banjo bolt filters, and if metal debris is found, replace the short block, oil pump, and oil cooler to prevent immediate repeat failure.
High-pitched 'dentist drill' whining noise under boost; Sudden loss of engine power and 'Limp Mode' activation; Blue or grey smoke from the exhaust tailpipe; Check Engine Light (CEL) with code P0011 or P0021 (AVCS timing); Metallic glittering or 'shimmer' in the engine oil (metal flakes)
Owners typically pay $1,800–$8,500 at an independent Subaru shop, parts and labor included. Our Subaru Timing Chain Replacement Cost (FB Engines) guide breaks the job down by parts, labor hours, and where the money actually goes.
The same generation also sees EJ25 Head Gasket Failure (2000-2009 Legacy). Both are documented with symptoms, cost, and a permanent-fix walkthrough — see the full list in the Legacy hub.
Cross-check NHTSA campaign 18V-846, which covers FA20 Valve Spring Fracture on 2012-2014 BRZ/Forester XT/WRX/Legacy. Recall work is free at any Subaru dealer — always run your VIN before paying for the fix.
We rate it 4/5 on our DIY scale. Most owners come out ahead with an independent Subaru shop; read labor-hour benchmarks in the repair-costs hub before you commit tools and a weekend.
It's part of our Engine Guides cluster, which collects every article covering the same system as this failure.
Same EJ-family boxer — the failure mode carries across every chassis this engine shipped in.
Same EJ-family boxer — the failure mode carries across every chassis this engine shipped in.
EJ, FA, FB, and EZ boxer deep-dives — the engine background this failure sits inside.
Dig into the Problems Database to plan your next maintenance sprint, or browse every model hub for buyer's guides, generation breakdowns, and known-issue lists.