Change Car Spark Plugs Subaru Impreza

Change Car Spark Plugs

Easy 0h45–1h30 ~75–150€
Temps estimé 0h45–1h30
Coût estimé ~75–150€
Difficulté Easy
Motorisations
Impreza II 2000-2007 4
  • 2.0 16V WRX Turbo Gas (EJ205)
  • 2.5 16V Gas (EJ251)
  • 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 2
  • 2.0 Gas (FB20)
  • WRX STi 2.5 Turbo Gas (EJ257)
Impreza V 2017-2025 1
  • 2.0i Gas (FB20)

What is the role of Subaru Impreza spark plugs?

The spark plug generates a spark at the precise moment needed to ignite the air/fuel mixture in the combustion chamber of petrol (or LPG) engines. The engine management system controls ignition timing.

When should you change your Subaru Impreza spark plugs?

Manufacturers provide replacement recommendations; refer to your vehicle maintenance booklet. Generally replace every 60,000 km (45,000 km for severe use). Some vehicles with long-life plugs (titanium, platinum, iridium) can go 100,000–150,000 km.

How do I know if I need to change my Subaru Impreza spark plugs?

Via the EOBD system (mandatory since 2001 on petrol cars), faulty spark plugs will trigger fault codes, typically P0301–P0304 (misfire, cylinders 1–4). Symptoms include: difficulty starting, misfires, reduced engine power, increased fuel consumption.

Is it difficult to change Subaru Impreza spark plugs?

Difficulty level 2/5: technically easy but requires specific tools (spark plug wrench, torque wrench). Key points: wait for cold engine, clean plug well with compressed air before removal, never use a dropped plug, do not grease threads, hand-tighten then torque to specification.

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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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