Parts for your 2015 Subaru Forester-Oil pump

2015 Subaru Forester Oil Pump — What It Does and When to Service It

Yes, the 2015 Subaru Forester uses an engine oil pump. Technical references including the Subaru Factory Service Manual for the 2015 Forester (Lubrication section for FB20/FB25 petrol, FA20DIT turbo, and EE20 diesel) and Subaru’s parts catalogue confirm a crankshaft-driven trochoid oil pump mounted in the front cover. These sources describe the pump as essential for maintaining oil pressure to bearings, camshafts, AVCS/dual AVCS control, timing chain tensioners, and the turbocharger on XT models.

This pump draws oil from the sump via the pickup, pressurises it, and pushes it through galleries to protect the engine under all conditions. On turbo models it’s especially critical, feeding the turbo’s bearings. On all engines it supports piston-cooling jets (where fitted) and keeps the timing chains happy. Without a healthy pump and proper oil pressure, metal-to-metal contact happens fast—and that’s when expensive damage begins.

Oil pumps on the 2015 Forester aren’t a routine replacement item, they’re replaced when there’s evidence of wear or pressure problems. Sensible servicing is the best protection. Stick to the correct oil grade and interval listed in the owner’s handbook (commonly every 12 months or around 12,500 km in AU/NZ, using the specified viscosity—often 0W-20 for many 2.0L petrol engines and 5W-30 for turbo/diesel, subject to market and climate). Always use a quality filter. If the oil pressure light flickers, don’t keep driving—have it checked with a mechanical gauge.

When replacement is needed, it’s a front-of-engine job: crank pulley off, front cover access, new front crank seal and cover sealant, new pickup O-ring, and careful priming of the pump (as the service manual instructs) before start-up. A technician should inspect the pressure relief valve, check clearances per the manual, and flush any debris if there’s been bearing or turbo failure. Genuine or high-quality OEM-equivalent pumps are recommended to keep pressure within spec.

• Warning signs: low oil pressure light, rattly timing chain on start-up, lifter/cam noise, turbo whine (XT), metal in the oil, or persistent oil pressure DTCs.
• Good habits: correct oil, timely changes, fix leaks promptly, and verify pressure if any warning lamp appears.

Popular questions

Does a 2015 Subaru Forester have an oil pump?
It does. Subaru’s 2015 Forester engines (FB20/FB25 petrol, FA20DIT turbo, and EE20 diesel) use a crank-driven trochoid pump housed in the front cover, as outlined in the Subaru service manual and parts catalogue.

When should the oil pump be replaced?
It isn’t a scheduled item. Replace it if verified low oil pressure, internal wear, relief valve issues, or contamination is found. A proper diagnosis with a pressure gauge and inspection per the factory manual is key.

What are common symptoms of a failing oil pump on this model?
Low oil pressure warning, valvetrain or timing chain rattle, turbo noise on XT, or metallic debris during an oil change. Don’t ignore any oil pressure light—shut the engine down and have it checked.