2014–2018 Mitsubishi Outlander PHEV (GG)
Browse our directory of 2014–2018 Mitsubishi Outlander PHEV (GG) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2014–2018 Mitsubishi Outlander PHEV (GG) has 4 known issues. 2 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
Battery Degradation & "BMU Reset" Masking
SeriousThe traction battery naturally loses capacity over time. A major concern is the "BMU Reset" where a technician or seller resets the Battery Management Unit, forcing it to report 100% health (State of Health). This "masks" the actual degradation until the car relearns the true capacity over several weeks.
Symptoms: Suddenly dropping range after a few weeks of ownership, Inconsistent EV range...
Est. repair cost: £3,000–£7,000 (Replacement)
AC Compressor Failure (Wrong Oil)
SeriousThe electric compressor requires specialized POE oil. Using standard PAG oil during a regas will destroy the internal motor.
Symptoms: AC not cooling, Loud grinding noise when AC is on...
Est. repair cost: £1,000–£3,000
Electric Heater Failure
ModerateThe electric water heater (used when the engine is off) frequently fails. A small inline gauze filter can also block, preventing circulation.
Symptoms: No cabin heat when driving in EV mode, Heat only available when petrol engine is running
Est. repair cost: £300–£1,000
Rear Differential Mount Thud
MinorThe rubber in the rear differential center mount perishes, leading to a "thud" or "clonk" when pulling away.
Symptoms: Thud from the rear when moving from a standstill, Clunk when releasing the brake
Est. repair cost: £150–£300
Buying Tips for the 2014–2018 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.
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