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4B12

2.4 Eclipse Cross PHEV (4B12, 13.8 kWh battery, 2021-2024) engine: faults and reliability

Mitsubishi PHEV: Outlander PHEV and Eclipse Cross PHEV (4B11 and 4B12 con dos motores eléctricos) version

Buy

The Eclipse Cross campaigns recorded by the DVSA relate to units built between 2017 and 2019, and we have found no faults specific to the PHEV system, which according to Hibridosyelectricos.com is basically that of the Outlander; it is a young car and there is little data, so confirm the remaining warranty and the battery's condition.[1][2]

Years
2021–2024
Power
188 hp
Faults that affect it
0
0 of high or critical severity
Cars that use it
1
in our database

4 sourcesHow we work

What changes in this version

Plug-in version of the Eclipse Cross, available in Europe from early 2021 with the facelift: Atkinson-cycle 2.4 petrol engine, 60 kW (front) and 70 kW (rear) electric motors and a 13.8 kWh battery, with about 45 km of WLTP electric range. Hibridosyelectricos.com describes it as basically the Outlander PHEV system adapted to a different chassis. The combined output is 188 hp according to German Wikipedia and Carwow Spain.[2][3][4]

Engine codes of this version: 4B12.

Faults of the 4B12 engine

The documented engine faults that affect this version and its years, from most to least important.

None of the documented Mitsubishi PHEV faults affect this version. See all Mitsubishi PHEV faults

Cars fitted with the 4B12 engine

Open each car to see all its faults with this engine and what to check before buying it.

Mitsubishi

Frequently asked questions

Is the 4B12 engine reliable?

Our verdict is “Buy”. The Eclipse Cross campaigns recorded by the DVSA relate to units built between 2017 and 2019, and we have found no faults specific to the PHEV system, which according to Hibridosyelectricos.com is basically that of the Outlander; it is a young car and there is little data, so confirm the remaining warranty and the battery's condition.[1][2]

Which cars use the 4B12 engine?

Mitsubishi Eclipse Cross I (2021–2024).[2][3][4]

Are you buying a car with the 4B12 engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. DVSA – base de llamadas a revisiónDVSA (Reino Unido) · Other source · consulted 8 October 2026
  2. El Mitsubishi Eclipse Cross PHEV sí llegará a Europa, incluida España, en 2021Híbridos y Eléctricos · Motoring press · published 18 October 2020 · consulted 8 October 2026 · in Spanish
  3. Mitsubishi Eclipse CrossWikipedia (alemán) · Other source · consulted 8 October 2026 · in German
  4. Mitsubishi presenta el Eclipse Cross PHEV, el segundo SUV híbrido enchufable de la firmaCarwow España · Motoring press · published 14 April 2021 · consulted 8 October 2026 · in Spanish