2.2 DI-D (PSA DW12 / 4N14)
2010–2012 · diesel · 2179cc · 156hp
Engine codes: DW12, 4N14
Reliability, common problems and owner reviews for the Mitsubishi Outlander 2.2 DI-D (PSA DW12 / 4N14). Check this before you buy used.
The PSA-derived 2.2 DI-D — strong and, importantly, 'rock solid if you do enough miles', especially after the piston rings were revised in 2012. The defining requirement is DPF discipline: it needs sustained driving above ~2,500 rpm for 10–20 minutes to regenerate, so it's a poor fit for short urban trips. Turbo gunk can also cause limp mode.
Same engine, other cars
This is the same physical engine (DW12) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
DPF won't regenerate on short/low-rpm trips; needs ~2,500+ rpm for 10–20 min to heat up.
Fix / Workaround: Regular sustained motorway runs; forced regen / clean / replace if blocked.
Repair cost: €300–€1500
Typically appears after: 100,000 km
Pre-2012 piston rings were weaker; revised in 2012. High-mileage low-use cars suffered most.
Fix / Workaround: Prefer 2012+ ring revision; use the car for real mileage.
Repair cost: €0–€2500
Typically appears after: 150,000 km
Turbo can clog and trigger limp mode.
Fix / Workaround: Clean turbo/VNT; clean oil.
Repair cost: €200–€1000
Year Cutoffs
Mileage Thresholds
After 100,000 km: DPF discipline becomes critical.
Pre-Purchase Checklist
- ☐Buy only if you do regular long/motorway miles
- ☐Prefer 2012+ (ring revision)
- ☐Check DPF history; test for limp mode
Frequently asked questions
Is the Mitsubishi Outlander 2.2 DI-D (PSA DW12 / 4N14) reliable?
Maint. Sensitive — The PSA-derived 2.2 DI-D — strong and, importantly, 'rock solid if you do enough miles', especially after the piston rings were revised in 2012. The defining requirement is DPF discipline: it needs sustained driving above ~2,500 rpm for 10–20 minutes to regenerate, so it's a poor fit for short urban trips. Turbo gunk can also cause limp mode.
What are the common problems and reviews for the Mitsubishi Outlander 2.2 DI-D (PSA DW12 / 4N14)?
The most commonly reported problems: DPF clogging (short trips), Piston rings (pre-2012), Turbo gunk → limp mode.
Is a used Mitsubishi Outlander 2.2 DI-D (PSA DW12 / 4N14) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.