Parts for your 2016 Subaru Impreza-Oil pump

2016 Subaru Impreza oil pump: what it does and how to look after it

Technical sources confirm the 2016 Subaru Impreza is fitted with an engine oil pump and it’s absolutely relevant to servicing. The Subaru Factory Service Manual for the 2016MY Impreza (FB-series engine, Lubrication section), Subaru’s global FAST parts catalogue listing an oil pump assembly for the FB20, and independent workshop manuals covering 2012–2016 Impreza models all describe a crankshaft-driven trochoid (gerotor) pump integrated into the front timing cover. So yes—this model uses an oil pump.

On the 2016 Impreza’s 2.0‑litre FB engine, the oil pump’s job is to pull oil from the sump, push it through the filter, and feed pressurised oil to bearings, camshafts, variable valve timing components, and timing chain tensioners. A built-in relief valve manages pressure so everything stays lubricated without blowing out seals. Without a healthy pump, the low oil pressure light will have a field day and the engine won’t last long.

For day-to-day care, the best thing an owner can do for the oil pump is simple: keep clean oil of the correct grade circulating. Subaru specifies low‑viscosity oils for the FB20 (commonly 0W‑20, check the owner’s manual for the exact spec and any local allowances), and regular oil and filter changes at the prescribed intervals keep the pump and galleries free of gunk. A quality filter with a proper anti‑drainback valve helps maintain pressure on start‑up, especially after the car’s been parked overnight in cooler Kiwi or Aussie weather.

It’s smart to check the dipstick regularly, top up if needed, and keep an eye out for any flicker of the oil warning lamp, rattly starts, or ticking once hot. If those show up, a mechanic should verify oil pressure with a mechanical gauge and inspect the pickup screen and filter before blaming the pump.

• Common clues of trouble: low oil pressure light, persistent valvetrain noise, metallic glitter in oil, or pressure below spec when hot.
• Preventive habits: use the correct oil, stick to service intervals, and fix leaks at the front cover, sump, or filter promptly.

Oil pumps on FB engines aren’t typical wear items, but if replacement is needed it’s a front‑cover job. That means belts and crank pulley off, timing cover removed, and resealing on reassembly. The pump should be pre‑lubed (primed), the pickup O‑ring renewed, and sealing done with the correct Subaru‑approved FIPG. It’s not a quick driveway fix, so most owners will want a workshop with Subaru experience to handle it, verify timing marks, and confirm hot oil pressure after the first start. Done right, the new pump will deliver many more trouble‑free kilometres.

Popular questions

Does the 2016 Subaru Impreza definitely have an oil pump?

Yes. Factory service information for the FB20 engine shows a crank‑driven trochoid oil pump built into the front timing cover. Subaru’s parts catalogue also lists a dedicated oil pump assembly for this model year.

What oil helps the pump last the distance?

Use the oil grade specified in the owner’s manual (commonly 0W‑20 meeting the correct API/ILSAC spec). Keep to the scheduled change intervals for your market and driving conditions. Clean, correct‑viscosity oil is the oil pump’s best mate.

Is it safe to drive if the oil light comes on?

No. If the oil pressure warning light stays on, stop the engine as soon as it’s safe. Running with low pressure can damage bearings in seconds. Get it towed to a workshop for diagnosis.