IsItAGoodCar
Reliability Guide

Common Problems with the
2020 Mitsubishi Outlander PHEV (GG)

We've identified 1 known issue that can affect the 2020 Mitsubishi Outlander PHEV (GG). 1 of these are serious faults that could be expensive to repair.

1
Known Issues
1
Serious
0
Moderate
0
Minor

All Known Issues

AC Compressor Failure (Wrong Oil)

SeriousElectrics & Electronics

The electric compressor requires specialized POE oil. Using standard PAG oil during a regas will destroy the internal motor.

Est. Repair Cost: £1,000–£3,000
Warning Signs:

AC not cooling, Loud grinding noise when AC is on, EV system fault light

What to Inspect:
  • Verify that any AC service used POE oil specifically
  • Check AC operation in both EV and Petrol modes
Verified by IsItAGoodCar Research Team

Buying Tips for 2020 Mitsubishi Outlander PHEV (GG)

  • Check for the "BMU (Battery Management Unit) Reset" scam, where sellers reset the battery health to show 100% capacity temporarily. A real test drive starting with a full battery is essential.
  • Listen for a clicking noise from the rear motor on early models, which could indicate a mounting issue.
  • Verify the operation of the rapid charging port (CHAdeMO) if you plan on using public chargers.
  • Check the electric heater operation in EV mode; it's a common failure point that is expensive to fix.
20192021
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