Skip to content
MotorFiable
en

Honda e:HEV / i-MMD vs 1.4 and 1.6 8v: which engine is more reliable?

According to our risk index, the Honda e:HEV / i-MMD carries less risk than the 1.4 and 1.6 8v: 34/100 versus 48/100 (both moderate risk). The Honda e:HEV / i-MMD has 2 documented serious faults, the main one being «Cracked high-pressure fuel pump (Honda campaign 6YP)»; the 1.4 and 1.6 8v has 3 documented serious faults, the main one being «LPG tank corrosion».

Risk index

Honda e:HEV / i-MMD

34

Moderate risk · 2 serious faults

Lower risk

Risk index

1.4 and 1.6 8v

48

Moderate risk · 3 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][3]

See the 3 of the Honda e:HEV / i-MMD faults

Is the 1.4 and 1.6 8v reliable?

The K7J (1.4) and K7M (1.6) are the original 8-valve, single-camshaft versions of Renault's «K» family: simple naturally aspirated engines that are, on the whole, reliable. None of the sources consulted documents oil consumption or faults that destroy the block. The most frequently cited weak points are the crankshaft sensor, the head gasket and the ignition coils; on Dacia's LPG versions, corrosion of the gas tank is added to the list.[4][5][6]

See the 5 of the 1.4 and 1.6 8v faults

Side-by-side comparison

Comparison of Honda e:HEV / i-MMD and 1.4 and 1.6 8v
Honda e:HEV / i-MMD1.4 and 1.6 8v
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement——
TimingChainTiming belt (dry)
Power109–184 hp75–90 hp
Productionsince 2018[1][7]since 1995[8][9][10]
Reliability
Risk index (what is it?)34Moderate risk48Moderate risk
Documented faults35
Of high or critical severity23
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Cracked high-pressure fuel pump (Honda campaign 6YP)
  2. High severity: Faulty fuel pump impeller on the 2019-2020 CR-V hybrid (Honda 6FE campaign)
  3. Low severity: 12 V battery going flat and hybrid system failing to start
  1. High severity: LPG tank corrosion
  2. High severity: Timing belt breakage or failure
  3. High severity: Head gasket (and, in some cases, cylinder head)
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][7]
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][11]
  • 1.4 8V 75 hp (K7J, 1995-2012)[4][5][6][12]
  • 1.6 8V 90 hp (K7M, 1995-2012)[4][5]
  • 1.4 8V 75 hp LPG (K7J 714, Dacia, 2008-2012)[6]
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

1.4 and 1.6 8v

Other comparisons

With the Honda e:HEV / i-MMD

With the 1.4 and 1.6 8v

Compare other engines

That is the comparison you are viewing: change one of the two engines.

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. Fiabilité Honda HR-V (2022): pannes et témoignagesFiches-auto.fr · Motoring press · consulted 30 October 2026 · in French
  4. Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiabilité et pannes du Dacia Logan 1Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Fiabilité et pannes du Dacia Sandero 1Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Honda LEB-H5 (1.5 i-MMD e:HEV): experiencias, problemas, consumo y consejos de compraAutohints · Technical documentation · consulted 29 October 2026 · in Spanish
  8. Renault K-Type engineWikipedia (inglés) · Other source · consulted 27 September 2026
  9. Moteur K RenaultWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  10. Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  11. 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
  12. Fiabilité et pannes du Renault Kangoo 1Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French