Forester — Generation guide
SG (2003–2008)
EJ25 phase-2 head gaskets still failing, but less catastrophically. The 2004–2008 Forester XT (turbo EJ255) is a cult favorite — but watch for grenaded engines from owner-tuners.
Documented problems (2003–2008)
All problems →Forester XT Turbo Failure — Banjo Bolt Filter Clog to Full Turbo Destruction (2004-2013)
The clogged turbo-oil-feed banjo bolt filter starves the turbocharger of oil. Caught early it's a $120 bolt service; ignored, it takes out the turbo and often the engine.
Repair: $120–$6,000
Knock Sensor Failure (P0328)
A P0328 trouble code indicates a high input from the knock sensor, often leading to reduced engine performance and fuel economy in Subaru Forester models.
Repair: $200–$400
NHTSA recalls
All recalls →No NHTSA recall campaigns for Forester model years 2003–2008 are currently in our database. For authoritative status, look the vehicle up by VIN at NHTSA:
nhtsa.gov/recalls — ForesterRepair-cost references
All costs →Repair-cost entries are model-wide; verify applicability for 2003–2008 before quoting.