Outlander IV
1 generation · Select a generation to see engines
Which Mitsubishi Outlander IV engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Mitsubishi Outlander IV engine is the most reliable?
2.5 PHEV (4B12) — Maint. Sensitive verdict. The 2023-on Outlander PHEV uses a chain-driven 2.5 4B12. The petrol half is not what strands the car. Canadian and northern-US owners of the 2023 and 2024 North American cars describe a drive battery with no heater — the 2014–2022 Outlander PHEV had one — and a heat pump that stops making cabin heat at about −15°C. On outlanderforums.com thread 887 a 2023 car at about −40°C showed 'Battery is too cold to start the vehicle, plug in the charger or wait for the temperature to rise' and would not move. The dealer said Mitsubishi knows and is working on software, and that at around −30°C the car eventually will not start. Jumping the 12V does nothing, because the lockout is the traction battery's temperature, not a flat accessory battery. Plugging in does not keep heating the pack once the charge is finished: owners say the charger disconnects and there is no pack heater to run. Myoutlanderphev.com thread 6085 says the same cars were promoted with a battery heater that the 2023 and 2024 North American specification does not have. A mild European winter is not Calgary. Confirm on the VIN whether this car has a drive-battery heater before you treat a Canadian no-start as your car's future. Do not import the old Outlander's citric-acid heater-matrix clog. That part is not this generation's failure.
Which Mitsubishi Outlander IV engines should you avoid?
None of the Mitsubishi Outlander IV engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Mitsubishi Outlander IV problems?
The most commonly reported problems across all Mitsubishi Outlander IV generations and engines: No drive-battery heater, and a cold pack will not start the engine, Heat pump gives up around −15°C, The 2.5 is the simple half.