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Honda e:HEV / i-MMD vs 1.5 VTi-TECH / T-GDI: which engine is more reliable?

According to our risk index, the 1.5 VTi-TECH / T-GDI carries less risk than the Honda e:HEV / i-MMD: 7/100 (low risk) versus 25/100 (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 1.5 VTi-TECH / T-GDI has no documented serious faults.

Risk index

Honda e:HEV / i-MMD

25

Moderate risk · 1 serious fault

Risk index

1.5 VTi-TECH / T-GDI

7

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

13 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 1.5 VTi-TECH / T-GDI reliable?

MG/SAIC's "1.5" covers two different engines: the naturally aspirated VTi-TECH (106 hp), the entry-level engine in the MG ZS, and the turbocharged T-GDI (162-170 hp), found only in the MG HS and as the petrol engine in its plug-in hybrids. Neither has well-documented engine faults in independent sources yet: the complaints published concern electronics, the automatic gearbox and finish, not the engine block.[3][4][5][6][7][8]

See the 2 of the 1.5 VTi-TECH / T-GDI faults

Side-by-side comparison

Comparison of Honda e:HEV / i-MMD and 1.5 VTi-TECH / T-GDI
Honda e:HEV / i-MMD1.5 VTi-TECH / T-GDI
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement——
TimingChainChain
Power109–184 hp106–170 hp
Productionsince 2018[1][9]since 2017[3][4][10][11][12]
Reliability
Risk index (what is it?)25Moderate risk7Low risk
Documented faults22
Of high or critical severity10
Worst severityHigh severityLow 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. Low severity: Jerky or harsh automatic gearbox shifts when cold or at low speed (MG HS)
  2. Low severity: Electronic warnings and occasional sensor faults (MG HS)
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][9]
  • 1.5 VTi-TECH naturally aspirated 106 hp (NSE / NSE Plus, from 2017)[6]
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][13]
  • 1.5 T-GDI turbo 162 hp (GS61H, 2018-2024)[7][8]
  • 1.5 T-GDI turbo 170 hp (15FDE / 15FKE, from 2024)[4]
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

1.5 VTi-TECH / T-GDI

Other comparisons

With the Honda e:HEV / i-MMD

With the 1.5 VTi-TECH / T-GDI

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. MG ZS (crossover)Wikipedia (inglés) · Other source · consulted 27 September 2026
  4. MG HSWikipedia (inglés) · Other source · consulted 27 September 2026
  5. Essai complet : MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Fiabilité et pannes du MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Fiabilité et pannes du MG eHSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  8. MG HS PHEV: guía definitiva de problemas y soluciones del SUV, el híbrido enchufable más vendidoAutopista.es · Motoring press · published 10 November 2025 · consulted 27 September 2026 · in Spanish
  9. Honda LEB-H5 (1.5 i-MMD e:HEV): experiencias, problemas, consumo y consejos de compraAutohints · Technical documentation · consulted 29 October 2026 · in Spanish
  10. MG HSWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  11. MG HSWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  12. List of General Motors enginesWikipedia (inglés) · Other source · consulted 27 September 2026
  13. 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