IsItAGoodCar
UK Buyer Reliability Guide3 Known Faults Documented

Mitsubishi Outlander Diesel Common Problems & Reliability

A practical 7-seater SUV that is often overlooked in favor of the PHEV. It is a capable tow car but suffers from common modern diesel issues.

6
Generation Periods
3
Known Issues
1
Critical Faults
2
Moderate Issues

Select a Model Year Period

Detailed fault breakdown, symptoms, and estimated repair bills by production year.

Most Common Mitsubishi Outlander Diesel Faults & Repair Costs

High Risk

Oil Dilution (2.2 DI-D)

Est. Cost£150–£300 (Oil change)

Interrupted DPF regenerations cause diesel to leak into the oil sump, thinning the oil and potentially damaging the engine.

Warning Signs:

Oil level rising above the "X" mark on the dipstick, DPF warning lights, Smell of diesel in the oil

What to Check Before Buying:
  • Check the dipstick regularly; if the oil level is high, it needs an immediate change
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Moderate Risk

DPF Clogging

Est. Cost£500–£1,500

The Diesel Particulate Filter clogs if the car is used mostly for short urban trips.

Warning Signs:

Limp mode, Engine management light, Poor fuel economy

What to Check Before Buying:
  • Ensure the car has regular long-distance runs to allow for DPF regeneration
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Moderate Risk

Dual Mass Flywheel (DMF) Wear

Est. Cost£800–£1,400

Manual models can suffer from DMF failure, especially if used for towing.

Warning Signs:

Vibration through the clutch pedal, Rattling noise at idle, Slipping clutch

What to Check Before Buying:
  • Listen for rattles when the engine is idling and when depressing the clutch
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Essential Pre-Purchase Step

Buying a used Mitsubishi Outlander Diesel? Always check for hidden finance and write-off history.

Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.

Inspection Checklist for Mitsubishi Outlander Diesel Buyers

Avoid models with high mileage and no DPF service history.
Check for smooth gear changes on automatic (TC-SST or Torque Converter) models.
Look for signs of heavy towing, which can accelerate wear on the clutch and suspension.