Honda e:HEV / i-MMD vs 1.0 MPI: which engine is more reliable?

According to our risk index, the 1.0 MPI carries less risk than the Honda e:HEV / i-MMD: 19/100 (low risk) versus 34/100 (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 1.0 MPI has no documented serious faults.

Risk index

Honda e:HEV / i-MMD

Moderate risk · 2 serious faults

Risk index

1.0 MPI

Low risk · 0 serious faults

Lower risk

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

Reviewed on 30 October 202615 sources How 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 1.0 MPI reliable?

The 1.0 MPI is a simple, low-powered (60-75 hp) naturally aspirated three-cylinder engine with no serious or systemic faults documented. Its most frequently cited issues are above-normal oil consumption -- especially in the Seat Ibiza V -- and, more occasionally, a cooling system fault with the engine light and vibrations. The timing belt has no fixed replacement interval and shows no failure pattern.^[4][5][6][7]

See the 4 of the 1.0 MPI faults

Side-by-side comparison

Comparison of Honda e:HEV / i-MMD and 1.0 MPI
Item	Honda e:HEV / i-MMD	1.0 MPI
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	—	999 cm³
Timing	Chain	Timing belt (dry)
Power	109–184 hp	60–75 hp
Production	since 2018^[1][8]	since 2011^{[9][10][11][12]}
Reliability
Risk index (what is it?)	34Moderate risk	19Low risk
Documented faults	3	4
Of high or critical severity	2	0
Worst severity	High severity	Medium severity
Main faults	High severity: Cracked high-pressure fuel pump (Honda campaign 6YP) High severity: Faulty fuel pump impeller on the 2019-2020 CR-V hybrid (Honda 6FE campaign) Low severity: 12 V battery going flat and hybrid system failing to start	Medium severity: Cooling system fault with engine light and vibrations Low severity: Higher-than-normal oil consumption (most cited on the Seat Ibiza V) Low severity: Timing belt with no fixed replacement interval
Most expensive documented repair	up 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][8]	1.0 MPI 60/75 (CHYA/CHYB, 2011-2023)^{[4][6][13][14]} 1.0 MPI 65/75 (CHYC/CPGA, 2017-)^[5]
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][15]	None
AvoidVersions to avoid	None	None

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

1.0 MPI

See the 7 models with the 1.0 MPI

Other comparisons

With the Honda e:HEV / i-MMD

With the 1.0 MPI

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.

Sistema híbrido Honda e:HEV (i-MMD): problemas, fiabilidad y coches que lo llevanMotordex · Technical documentation · consulted 29 October 2026 · in Spanish
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
Fiabilité Honda HR-V (2022): pannes et témoignagesFiches-auto.fr · Motoring press · consulted 30 October 2026 · in French
Fiabilité et pannes de la Volkswagen UpFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Seat Ibiza (2017-)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Skoda CitigoFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
VW Up: Beliebtes Stadtauto im GebrauchtwagencheckGebrauchtwagenberater.de · Motoring press · published 22 March 2026 · consulted 27 September 2026 · in German
Honda LEB-H5 (1.5 i-MMD e:HEV): experiencias, problemas, consumo y consejos de compraAutohints · Technical documentation · consulted 29 October 2026 · in Spanish
VW EA211Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Škoda FabiaWikipedia (inglés) · Other source · consulted 27 September 2026
VW Polo VWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
VW Polo VIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Fiabilité et pannes de la Seat MiiFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Skoda Fabia 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
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