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Mitsubishi Pajero Sport: DPF soot blockage on short-trip driven vehicles (2.4 4N15)

DPF soot blockage on short-trip driven vehicles (2.4 4N15) is a common engine fault on the Mitsubishi Pajero Sport on the 2017 onward cars, and we rate it major. Putting it right costs $500 to $5,000 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 15 documented faults on the Mitsubishi Pajero Sport.

Vehicle
Mitsubishi Pajero Sport
Engine
2.4L
Years
2017 onward
Fuel
diesel
System
Engine

This page covers the Mitsubishi Pajero Sport as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Mitsubishi Pajero Sport faults15 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Diesel particulate filter yet. We would rather show none than show a picture of a different part.

What goes wrong

From around 2017 the Pajero Sport carries a full diesel particulate filter, and DPF trouble is one of the most-reported problems on Australian owner forums and review sites. Suburban-only driving prevents proper regeneration; soot load climbs, regens become more frequent, economy worsens and the filter can block permanently, putting the vehicle in limp mode. A forced regen or professional clean fixes early cases; a destroyed filter is a four-figure part even aftermarket.

What you would notice

  • DPF light or frequent regeneration cycles
  • Diesel smell and raised idle during regens
  • Increasing fuel consumption
  • Reduced power / limp mode

How to check it

Where to look. Exhaust under the vehicle, downstream of the turbo

  1. Get a scan showing soot load and distance between regenerations before purchase.

  2. Ask about the typical driving pattern - a school-run-only Pajero Sport is the classic victim.

  3. Check for evidence of DPF deletes, which are illegal for road use in NZ and a WOF/compliance risk.

Parts involved: Diesel particulate filter.

What it costs to put right

$500 to $5,000 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “Has the DPF ever been cleaned, forced-regenerated or replaced?”
  • “What is the current soot load on a scan?”
  • “Does the vehicle get regular motorway runs?”

Now check the Mitsubishi Pajero Sport you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Mitsubishi Pajero Sport buyer questions

Is dpf soot blockage on short-trip driven vehicles (2.4 4n15) serious on a Mitsubishi Pajero Sport?

We rate it major and common on the Mitsubishi Pajero Sport. From around 2017 the Pajero Sport carries a full diesel particulate filter, and DPF trouble is one of the most-reported problems on Australian owner forums and review sites. Suburban-only driving prevents proper regeneration; soot load climbs, regens become more frequent, economy worsens and the filter can block permanently, putting the vehicle in limp mode. A forced regen or professional clean fixes early cases; a destroyed filter is a four-figure part even aftermarket.

How much does it cost to fix on a Mitsubishi Pajero Sport?

$500 to $5,000 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Mitsubishi Pajero Sport years are affected?

Our research records this fault on the 2017 onward Mitsubishi Pajero Sport. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Get a scan showing soot load and distance between regenerations before purchase. Ask about the typical driving pattern - a school-run-only Pajero Sport is the classic victim. Check for evidence of DPF deletes, which are illegal for road use in NZ and a WOF/compliance risk. Look here: Exhaust under the vehicle, downstream of the turbo