Parts for your 2022 Mitsubishi Asx-Oil pump

2022 Mitsubishi ASX oil pump — what it does and how to look after it

Yes, the 2022 Mitsubishi ASX is fitted with an engine oil pump. Factory technical sources confirm this: the Mitsubishi Motors ASX/RVR/Outlander Sport service manual (Lubrication section for the 4B1-series engines) and the Mitsubishi ASA electronic parts catalogue both list an “oil pump assembly” for the 2.0‑litre MIVEC petrol used in the ASX around this model year. The pump is a crankshaft-driven trochoid/gerotor unit housed at the front of the engine within the timing cover, supplying pressurised oil across the motor.

The oil pump’s whole job is to move the right amount of oil, at the right pressure, to every part that needs it. That includes crank and rod bearings, camshafts and MIVEC actuators, timing chain guides, and other galleries. Without solid oil pressure, an engine can rattle, throw warnings, or, worst case, seize.

• Builds and regulates oil pressure from idle to highway revs
• Feeds variable valve timing (MIVEC) hardware so it can respond quickly
• Helps manage heat and clean away contaminants via the filter circuit

The oil pump itself isn’t a routine replacement item and generally lasts the life of the engine. What keeps it happy is good servicing: change oil and filter on time (typically every 12 months or 15,000 km in AU/NZ conditions unless the schedule for your trim says otherwise), use the correct grade/spec oil noted in the owner’s manual (often 0W‑20 or 5W‑30 for local climates), and don’t ignore the oil pressure warning light.

• Best practice: stick to quality filters, fix leaks early, and avoid excess sealant during repairs so the pickup strainer doesn’t clog
• Signs to act on: oil pressure light flicker at idle, top-end ticking, VVT/MIVEC faults, metallic glitter in drained oil, or persistent chain rattle on warm starts

If replacement is needed, it’s a fairly involved job: the front cover comes off, the crank pulley is removed, sealing surfaces are cleaned and re-sealed, and the pump is primed with clean oil before first start. It’s smart to renew related seals (front crank seal, O‑rings), freshen the timing cover sealant, and follow factory torque/angle specs. Many workshops will also inspect the pickup, relief valve and bearing clearances—because low pressure isn’t always the pump’s fault. Using genuine or reputable aftermarket parts and having a pro handle the labour saves headaches.

Popular questions about the 2022 Mitsubishi ASX oil pump

Does the 2022 Mitsubishi ASX have an oil pump?
The 2022 ASX does have an oil pump. Factory literature for the 4B1‑series engine family describes a crank-driven trochoid/gerotor pump in the front cover, and the Mitsubishi ASA parts catalogue lists an oil pump assembly for this model. It’s essential for maintaining oil pressure to bearings, cams and MIVEC.

When should the oil pump be replaced?
There’s no scheduled replacement interval. It’s only replaced if there’s confirmed low oil pressure or mechanical damage, or during an engine rebuild. Before blaming the pump, a workshop should verify pressure with a mechanical gauge and rule out a clogged pickup, faulty relief valve, incorrect oil grade, or worn bearings.

How much does an oil pump replacement cost?
Costs vary by workshop and region, but as a ballpark in AU/NZ, expect roughly AUD/NZD $900–$1,800 fitted, depending on parts choice and any extra seals, timing cover work, or associated repairs needed. A firm quote should come after diagnosis, as the real cause of low pressure might be elsewhere.