The Mitsubishi Pajero earned its reputation for durability the hard way, but no 4×4 is faultless. Knowing the Pajero common problems by generation lets you buy smart, budget honestly and avoid the few well-documented weak points that catch owners out. This guide breaks down the faults you are most likely to meet on a Gen 2, Gen 3, Gen 4 or Pajero Sport in South Africa.
For each issue we give the symptom, the likely cause and a rough SA repair-cost range so you can weigh up any example before you buy. Costs are approximate for 2026 and vary by workshop, region and parts source — always confirm a quote locally. Pair this with our Used Pajero Buying Guide: The 20-Point Inspection when you go to view a vehicle.
Gen 2 (1991–1999) common problems
The Gen 2 is now an older vehicle, so age and corrosion drive most issues rather than design faults. The 4D56 2.5TD and 4M40 2.8TD diesels and the 6G74 3.5 V6 petrol are all robust if maintained.
- Chassis and body rust. Symptom: flaking metal on chassis rails, rear crossmember and arches. Cause: age plus coastal salt and trapped mud. Rough cost: minor treatment from a few thousand Rand; structural repair can write off a cheap example.
- 4D56 timing belt neglect. Symptom: none until failure, then catastrophic. Cause: missed belt-replacement interval. Rough cost: a belt-and-tensioner service is far cheaper than the engine rebuild a snapped belt causes.
- Tired suspension and bushes. Symptom: vague handling, clunks, sagging rear. Cause: high mileage and load. Rough cost: a full bush-and-shock refresh is a moderate workshop job.
Gen 3 (2000–2006) common problems
The Gen 3 introduced the 4M41 3.2 Di-D, a strong engine with one well-known weak point, and a more car-like monocoque body.
- 4M41 timing chain stretch. Symptom: rattle on cold start or under load. Cause: chain and tensioner wear, often from extended oil-change intervals. Rough cost: a timing-chain kit and labour is one of the larger Pajero bills — get a firm quote before buying an affected car.
- Injector wear. Symptom: rough idle, smoke, hard starting, knocking. Cause: high mileage and poor fuel quality. Rough cost: injectors are pricey individually and add up quickly across all four.
- EGR and intake sooting. Symptom: hesitation, reduced economy, limp mode. Cause: carbon build-up choking the intake. Rough cost: an EGR clean is modest; replacement parts cost more.
- Super Select play. Symptom: reluctant engagement of 4H, 4HLc or 4LLc, or warning lights. Cause: worn actuator, vacuum or sensor faults. Rough cost: varies from a cheap sensor to a larger transfer-case repair.
Gen 4 (2007–2021) common problems
The long-running Gen 4 kept the 4M41 3.2 Di-D (now common-rail and, on later cars, with a DPF) plus the 6G72 3.0 V6 petrol. It is the most refined Pajero but adds modern emissions complexity.
- 4M41 timing chain (later units). Symptom: same start-up rattle as the Gen 3. Cause: chain wear. Rough cost: a significant timing-chain job — budget for it on higher-mileage cars.
- DPF clogging. Symptom: warning light, limp mode, poor economy, frequent regens. Cause: short-trip city driving preventing regeneration. Rough cost: a forced regen or clean is moderate; a new DPF is expensive.
- EGR faults. Symptom: hesitation, smoke, fault codes. Cause: carbon and valve sticking. Rough cost: clean is cheap, replacement moderate.
- Electrical gremlins. Symptom: intermittent central locking, sensors, infotainment or 4WD warnings. Cause: ageing wiring, earths and poor aftermarket installs. Rough cost: usually a diagnostic-led fix rather than a big bill.
Pajero Sport common problems
The body-on-frame Pajero Sport uses the 4D56 2.5TD on early cars and the 4N15 2.4 Di-D later. It shares a lot with the Triton range and is a popular SA family 4×4.
- 4D56 injector and timing-belt servicing. Symptom: rough running, smoke, or belt failure if neglected. Cause: missed intervals and high mileage. Rough cost: routine belt service is moderate; injectors add up.
- 4N15 DPF and EGR. Symptom: regen warnings, limp mode on short city trips. Cause: emissions hardware sensitive to driving style. Rough cost: cleaning moderate, replacement parts expensive.
- Front suspension wear. Symptom: knocks, uneven tyre wear. Cause: load and rough roads. Rough cost: ball-joints, bushes and shocks are standard wear items.
Quick-reference problem and cost table
| Issue | Affected models | Severity | Approx. SA cost (2026) |
|---|---|---|---|
| 4M41 timing chain stretch | Gen 3 & Gen 4 (3.2 Di-D) | High | Major job — get a firm quote |
| Injector wear | 4M41, 4D56 | Medium–High | Significant per set |
| EGR / DPF clogging | Gen 4, Sport (4N15) | Medium | Clean cheap; replace dear |
| Super Select faults | All Super Select models | Medium | Sensor cheap; transfer case dear |
| Chassis / body rust | Gen 2, coastal cars | High | Minor to write-off |
Most Pajero “problems” are really maintenance that was skipped. A full service history beats a low price every time.
How to spot these problems before you buy
Nearly every fault above announces itself if you know what to look and listen for. A disciplined cold-start test is the most revealing single check: it exposes timing-chain rattle on the 4M41, injector knock, hard starting and the tell-tale smoke colours that separate a healthy diesel from a tired one. Blue smoke points to oil burning, persistent black to injector or turbo trouble, and lingering white to coolant or injection-timing faults.
- Drive every 4WD mode. Cycle 2H, 4H, 4HLc and 4LLc exactly as the manual instructs and confirm each engages with its dash light. Hesitation here flags Super Select wear before it becomes a transfer-case bill.
- Read the emissions behaviour. On Gen 4 and 4N15 Sport diesels, ask how the car is driven. A short-trip city-only history points to a DPF that has struggled to regenerate and may be near a clean or replacement.
- Check fluids for cross-contamination. Mayonnaise under the oil cap, oil in the coolant or milky diff oil all turn a bargain into a project. These take seconds to check and save thousands.
- Probe the chassis on coastal cars. KZN, Cape and Eastern Cape examples suffer most from rust. Press the rails and rear crossmember firmly — soft or flaking steel is structural and rarely worth fixing on a cheap car.
Catching these signs early is exactly what the structured 20-point process in our Used Pajero Buying Guide is built for. Combine a careful inspection with a documented service history and you sidestep the overwhelming majority of expensive surprises.
Many of these faults are avoidable with disciplined servicing — see the recommended intervals in our Pajero Service Intervals & Maintenance Schedule. To understand the ongoing cost picture, read our Pajero Running Costs in South Africa guide, and confirm original specifications against the Pajero Specs Database.
Frequently Asked Questions
What are the most common Pajero problems to watch for?
Is the 4M41 timing chain expensive to fix?
How do I avoid EGR and DPF problems on a diesel Pajero?
Are Super Select faults serious?
Which Pajero is the most reliable?
Knowing the faults is half the battle. Use this alongside the rest of our Pajero Buying Guides and the inspection steps in the Used Pajero Buying Guide so you buy a Pajero that gives years of trouble-free service rather than a project.