Change Car Turbo Subaru Impreza

Change Car Turbo

Very technical 5h00 ~500€
Temps estimé 5h00
Coût estimé ~500€
Difficulté Very technical
Motorisations
Impreza II 2000-2007 3
  • 2.0 16V WRX Turbo Gas (EJ205)
  • 2.5 16V WRX STi Gas (EJ257)
  • 2.5 16V WRX Turbo Gas (EJ255)
Impreza III 2007-2013 2
  • 2.5 WRX Gas (EJ255)
  • 2.5 WRX STi Gas (EJ257)
Impreza IV 2012-2017 1
  • WRX STi 2.5 Turbo Gas (EJ257)

What is the role of the Subaru Impreza turbo?

The turbocharger increases engine power by compressing the intake air, allowing more air (and therefore more fuel) into the combustion chambers. It is driven by exhaust gases spinning a turbine at speeds up to 250,000 rpm. The compressed intake air passes through an intercooler to reduce its temperature before entering the engine.

What are the symptoms of a failing Subaru Impreza turbo?

Common symptoms include: loss of engine power or boost, excessive exhaust smoke (blue/white for oil burning, black for over-fuelling), whining or whistling noise from the turbo area, engine warning light or turbo fault codes, oil leaks at the turbo housing, increased oil consumption.

What causes Subaru Impreza turbo failure?

The main causes are: oil starvation (blocked or restricted oil feed lines, low oil level, poor oil quality), foreign object ingestion, excessive exhaust temperature, worn bearings due to high mileage, and contaminated oil. Always investigate and fix the root cause before fitting a replacement turbo.

Can a Subaru Impreza turbo be reconditioned?

Yes, turbo reconditioning is a common and cost-effective alternative to buying new. A reputable service will disassemble, inspect, replace worn parts, rebalance, and test the unit. Expect to pay 30–60% of the new price.

Is it difficult to change a Subaru Impreza turbo?

Difficulty level 5/5: very technical. The turbo is connected to both the intake and exhaust systems, requiring numerous disassembly steps. Approximately 5 hours on average for a professional mechanic. Key precautions after fitting: change the engine oil and filter, prime the turbo with oil before starting, allow the turbo to cool down after hard driving by idling for 30 seconds before switching off.

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5 générations couvertes

Génération Période Motorisations Carburant
Impreza 1993-2001 1993-2001 1.8i 16V Gas (EJ18S), 2.2 Gas (EJ222) Gas
Impreza II 2000-2007 2000-2007 2.0 16V WRX Turbo Gas (EJ205), 2.5 16V Gas (EJ251), 2.5 16V Gas (EJ253), 2.5 16V WRX STi Gas (EJ257), 2.5 16V WRX Turbo Gas (EJ255) Gas
Impreza III 2007-2013 2007-2013 2.5 SOHC Gas (EJ253), 2.5 WRX Gas (EJ255), 2.5 WRX STi Gas (EJ257) Gas
Impreza IV 2012-2017 2012-2017 2.0 Gas (FB20), WRX STi 2.5 Turbo Gas (EJ257) Gas
Impreza V 2017-2025 2017-2025 2.0i Gas (FB20) Gas

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Consultez le carnet d'entretien de votre Impreza →