2006 — 2007
2.5L Turbo EJ257 - 206kW
Petrol
While driving at low speeds with the window down, listen for any rhythmic clicking or knocking from the front end, as worn CV joints can be a common point of interest in cars of this age.
Check this by shifting through all gears smoothly; ensure there is no significant 'crunching' or reluctance, as the 6-speed transmission is robust but can show signs of wear if the synchros have had a hard life.
While stationary with the engine running, observe the exhaust for any blue or heavy white smoke, which may suggest the turbo seals or head gaskets might require professional inspection down the track.
Before moving off, check the service history for proof of timing belt changes, as the EJ257 engine relies on this component for longevity and it is a vital part of the car's ongoing reliability.
Usually marks the second major timing belt interval; check if this has been completed recently.
A common window where suspension bushings and cooling system components like the radiator may show signs of natural degradation.
At this stage, it is prudent to consider the health of the turbocharger and potential internal wear on the engine components.
Ensure the oil level is checked every second fuel fill, as these engines appreciate consistent lubrication.
Check for any signs of oil weeping from the cam covers, which is a common area to monitor in older EJ engines.
Keep the coolant fresh and use the genuine Subaru Long Life coolant to protect the cooling system internals.
Replace the fuel filter at regular intervals to ensure the fuel pump and injectors perform as intended.
Monitor the gearbox and differential fluids, as clean fluid helps maintain smooth shifting and longevity.
Estimated repair costs if issues arise
If this component needs attention in the future, the estimated cost in NZ is a worthwhile investment to protect the engine's internals from potential contact damage.
Depending on the car's history, you might eventually need to budget for a turbo upgrade or rebuild if you notice any loss of boost pressure or unusual whining noises.
Because the Hawkeye STi has plenty of torque, it is common to consider that the clutch may eventually require a professional replacement as part of your future budget planning.
Noticed something inaccurate or missing?Suggest an edit→
Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer