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MotorFiable

Mitsubishi PHEV vs 1.2 8v: which engine is more reliable?

According to our risk index, the Mitsubishi PHEV carries less risk than the 1.2 8v: 24/100 (low risk) versus 36/100 (moderate risk). The Mitsubishi PHEV has 2 documented serious faults, the main one being «Corroded air flow sensor: the petrol engine does not start to charge the battery»; the 1.2 8v has 1 documented serious fault, the main one being «Damaged cylinder head gasket (coolant loss and overheating)».

Risk index

Mitsubishi PHEV

24

Low risk · 2 serious faults

Lower risk

Risk index

1.2 8v

36

Moderate risk · 1 serious fault

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

17 sourcesHow we work

Is the Mitsubishi PHEV reliable?

Yes, with caveats: the OCU ranks the Outlander PHEV first for reliability among used plug-in hybrids. What is documented are isolated campaigns (spark plugs and software, air flow sensor, fuel hose) and a possible loss of battery capacity, cited by one source and one study without figures. The Eclipse Cross PHEV, which uses the same system, has no documented faults of its own.[1][2][3][4][5]

See the 5 of the Mitsubishi PHEV faults

Is the 1.2 8v reliable?

The 1.2 8v (D7F) is a simple naturally aspirated engine of 54 to 60 hp, with a timing belt, which Renault fitted from 1996 to the Twingo, Clio II and Kangoo. No catastrophic failures are documented; what owner reviews mention most often are the sensors, the cylinder head gasket, the coil packs and the occasional oil drip.[6][7][8]

See the 5 of the 1.2 8v faults

Side-by-side comparison

Comparison of Mitsubishi PHEV and 1.2 8v
Mitsubishi PHEV1.2 8v
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement—1,149 cm³
TimingChainTiming belt (dry)
Power163–224 hp54–60 hp
Productionsince 2013[9][10][11]1996–2012[12][13][14][15]
Reliability
Risk index (what is it?)24Low risk36Moderate risk
Documented faults55
Of high or critical severity21
Worst severityHigh severityHigh severity
Main faults
  1. Medium severity: Loss of traction battery (high-voltage) capacity
  2. Medium severity: Spark plugs and petrol engine software on the Outlander PHEV (campaign R3033111)
  3. High severity: Corroded air flow sensor: the petrol engine does not start to charge the battery
  1. High severity: Damaged cylinder head gasket (coolant loss and overheating)
  2. Medium severity: Crankshaft sensor (TDC) and other engine sensor failure
  3. Medium severity: Ignition faults: coil packs, ignition harness and humidity
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • 2.4 Eclipse Cross PHEV (4B12, 13.8 kWh battery, 2021-2024)[4][5]
None
With cautionVersions to be cautious about
  • 2.0 Outlander PHEV (4B11, 12 kWh battery, 2013-2018)[3][4][16]
  • 2.4 Outlander PHEV (4B12, 13.8 kWh battery, 2018-2021)[1][2][3]
AvoidVersions to avoidNoneNone

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

Other comparisons

With the Mitsubishi PHEV

With the 1.2 8v

Compare other engines

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Sources

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

  1. Mitsubishi Outlander PHEV, el híbrido enchufable de segunda mano más fiable según la OCUHíbridos y Eléctricos · Motoring press · published 14 May 2024 · consulted 8 October 2026 · in Spanish
  2. Mitsubishi Outlander (II & III) – Bekannte Probleme und MängelGebrauchtwagenberater (Alemania) · Motoring press · published 2 March 2023 · consulted 8 October 2026 · in German
  3. Baterías de híbrido enchufable: cuándo habrá que sustituirlas (Outlander PHEV)Autofácil · Motoring press · published 7 May 2020 · consulted 8 October 2026 · in Spanish
  4. DVSA – base de llamadas a revisiónDVSA (Reino Unido) · Other source · consulted 8 October 2026
  5. 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
  6. Fiabilité Renault Clio 2 : pannes et avis des propriétairesFiches-auto.fr · Motoring press · consulted 2 November 2026 · in French
  7. Fiabilité Renault Twingo 1993-2006 : pannes et avis des propriétairesFiches-auto.fr · Motoring press · consulted 2 November 2026 · in French
  8. Fiabilité Renault Twingo 2 (2007-2014) : pannes et avis des propriétairesFiches-auto.fr · Motoring press · consulted 2 November 2026 · in French
  9. Mitsubishi Outlander PHEVWikipedia (inglés) · Other source · consulted 8 October 2026
  10. Mitsubishi OutlanderWikipedia (alemán) · Other source · consulted 8 October 2026 · in German
  11. Mitsubishi 4B1 engineWikipedia (inglés) · Other source · consulted 8 October 2026
  12. Moteur D (Renault)Wikipédia (francés) · Other source · consulted 2 November 2026 · in French
  13. Renault Clio IIWikipedia (alemán) · Other source · consulted 2 November 2026 · in German
  14. Renault TwingoWikipedia (alemán) · Other source · consulted 2 November 2026 · in German
  15. Renault Twingo IWikipedia (alemán) · Other source · consulted 2 November 2026 · in German
  16. Mitsubishi Outlander PHEV (2013 – 2014): alerta A12/1947/19 (sensor de caudal de aire)car-recalls.eu (alertas Safety Gate / RAPEX) · Other source · published 13 December 2019 · consulted 8 October 2026
  17. Renault Twingo (ab 1993): Schwachstellen laut TÜV-AuswertungAUTO BILD · Motoring press · published February 2002 · consulted 2 November 2026 · in German