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Honda e:HEV / i-MMD vs E-Tech Híbrido: which engine is more reliable?

According to our risk index, the Honda e:HEV / i-MMD carries less risk than the E-Tech Híbrido: 25/100 versus 32/100 (both moderate risk). The Honda e:HEV / i-MMD has 1 documented serious fault, the main one being «Cracked high-pressure fuel pump (Honda campaign 6YP)»; the E-Tech Híbrido has 2 documented serious faults, the main one being «Multi-mode gearbox failure (risk of breakage)».

Risk index

Honda e:HEV / i-MMD

25

Moderate risk · 1 serious fault

Lower risk

Risk index

E-Tech Híbrido

32

Moderate risk · 2 serious faults

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

12 sourcesHow we work

Is the Honda e:HEV / i-MMD reliable?

The Honda e:HEV hybrid system (formerly i-MMD) has no serious, widespread faults documented in the sources consulted. The most cited issue is the 12 V battery going flat when the car stands unused and, on the 2.0, a recall for the high-pressure fuel pump.[1][2]

See the 2 of the Honda e:HEV / i-MMD faults

Is the E-Tech Híbrido reliable?

The E-Tech combines a combustion engine (1.6 H4M naturally aspirated or 1.2 HR12 turbo) with electric motors and a multi-mode gearbox with no clutch or torque converter. Its best-documented weak point is the gearbox itself: reports from the Clio, Captur, Arkana, Austral, Duster and Jogger describe warnings of a risk of breakage, and Renault has launched two campaigns since 2020 (an electrical fault and a primary shaft seal). The 12 V battery also fails fairly often.[3][4][5]

See the 4 of the E-Tech Híbrido faults

Side-by-side comparison

Comparison of Honda e:HEV / i-MMD and E-Tech Híbrido
Honda e:HEV / i-MMDE-Tech Híbrido
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement—1,598 cm³
TimingChainChain
Power109–184 hp140–200 hp
Productionsince 2018[1][6]since 2020[3][7][8]
Reliability
Risk index (what is it?)25Moderate risk32Moderate risk
Documented faults24
Of high or critical severity12
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Cracked high-pressure fuel pump (Honda campaign 6YP)
  2. Low severity: 12 V battery going flat and hybrid system failing to start
  1. High severity: Multi-mode gearbox failure (risk of breakage)
  2. High severity: Stalling and injection warnings on the 1.2 E-Tech 200 (HR12)
  3. Medium severity: Hybrid system electrical fault with "DANGER" warning and car won't start
Most expensive documented repairup to €25012 V battery going flat and hybrid system failing to startPublished figure[1]No reliable data
Which versions to buy
BuyRecommended versions
  • e:HEV 1.5 (LEB-H5) 109-131 hp system output (Jazz IV, HR-V III)[1][6]
None
With cautionVersions to be cautious about
  • i-MMD 2.0 184 hp system output (CR-V V hybrid)[1][2]
  • e:HEV 2.0 184 hp system output (Civic XI)[2][9]
  • 1.6 E-Tech Full Hybrid 140-145 (H4M, 2020+)[4][10]
  • 1.6 E-Tech Plug-in Hybrid 160 (H4M, 2020-2023)[11]
  • 1.2 E-Tech Full Hybrid 200 (HR12 turbo, 2022+)[5][12]
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

Honda e:HEV / i-MMD

E-Tech Híbrido

See the 11 models with the E-Tech Híbrido

Other comparisons

With the Honda e:HEV / i-MMD

With the E-Tech Híbrido

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. Sistema híbrido Honda e:HEV (i-MMD): problemas, fiabilidad y coches que lo llevanMotordex · Technical documentation · consulted 29 October 2026 · in Spanish
  2. Honda recalls 1.3 million cars: fuel pump fire risk (KBA 14559R)Car-Recalls.eu · Motoring press · published 17 March 2025 · consulted 29 October 2026
  3. Renault Clio VWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  4. Fiabilité et pannes de la Renault Clio 5Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiabilité et pannes du Renault AustralFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Honda LEB-H5 (1.5 i-MMD e:HEV): experiencias, problemas, consumo y consejos de compraAutohints · Technical documentation · consulted 29 October 2026 · in Spanish
  7. Renault Captur IIWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  8. Renault AustralWikipedia (inglés) · Other source · consulted 27 September 2026
  9. Guide d'achat Honda Civic (nueva campaña 6YP, 4.740 híbridos en Francia)L'argus · Motoring press · published 7 January 2025 · consulted 29 October 2026 · in French
  10. Fiabilité et pannes du Renault ArkanaFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  11. Fiabilité et pannes du Renault Captur IIFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  12. Fiabilité et pannes du Renault Espace 6Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French