Parts for your 2014 Mitsubishi Asx-Oil pump

2014 Mitsubishi ASX oil pump — what it does and how to look after it

Technical references confirm the 2014 Mitsubishi ASX is fitted with an engine-driven oil pump. The Mitsubishi ASX/RVR/Outlander Sport factory Workshop Manual (GA series, Group 11A – Engine Lubrication) specifies a gerotor-type pump integrated with the front cover on the 4B1 petrol engines, while the 4N1 diesel engine manual documents a variable-flow pump. The MMC/ASA electronic parts catalogue also lists an oil pump assembly for these engines. So yes, this model absolutely uses an oil pump and relies on it for proper lubrication.

The oil pump is the heart of the ASX’s lubrication system, pushing oil through galleries to bearings, camshafts and the timing gear so everything stays cool and slippery. Without steady oil pressure, metal surfaces would scuff and seize in no time, which is why that little pump earns its keep every kilometre.

When planning servicing on a 2014 ASX, the pump itself isn’t a routine replacement item, but it does depend on clean oil and the right viscosity. Sticking to the recommended oil spec and change intervals is the best way to keep the pump happy. During major services or when the sump is off, a good workshop will check for sludge, inspect the pickup strainer, and look for leaks at the front cover and crank seal that could affect pressure.

• Watch for tell-tales: low oil-pressure warning, top-end ticking, rumbling at idle, or metallic glitter in the oil.
• If the sump has been off, ensure the pickup O-ring and sealant at the front cover are renewed as required by the workshop manual.
• Use quality filters, poor bypass valves can starve the pump momentarily on cold starts.

If an oil pump replacement is needed (usually due to wear, sludge damage, or scoring), it’s a front-cover-off job. A competent mechanic will:

1. Confirm low pressure with a mechanical gauge rather than relying solely on the dash light.
2. Inspect the pickup, relief valve operation and bearings to rule out other causes.
3. Fit an OEM-quality pump, renew gaskets/seals, and apply the correct sealant pattern to the front cover.
4. Prime the pump, fill with the correct oil grade, and verify hot-idle pressure after a careful first start.

Look after the oil, and the ASX’s pump will usually go the distance, whether it’s the 2.0 petrol doing the school run or the 1.8 diesel clocking up highway kays across NZ or Oz.

Popular questions

How often should the oil pump be replaced on a 2014 Mitsubishi ASX?
It isn’t a scheduled replacement item. With regular oil and filter changes using the correct grade, the pump typically lasts the life of the engine. Replacement is only considered if verified low oil pressure, excessive internal wear or contamination is found.

What are the common signs of a failing oil pump on the ASX?
Warning light for low oil pressure, noisy lifters or top-end ticking, rumbling at idle, rising engine temperature, or metal flakes in drained oil. Always confirm with a mechanical pressure test before diving into parts replacement.

Can the ASX be driven if the oil-pressure light comes on?
No. Safely stop, switch off, and check the oil level. If the light remains on after topping up, have it towed. Driving with low pressure can damage bearings and camshafts within minutes.