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1.0 T3 and 1.3 T4 FireFly Turbo vs E-Tech Híbrido: which engine is more reliable?

According to our risk index, the 1.0 T3 and 1.3 T4 FireFly Turbo carries less risk than the E-Tech Híbrido: 18/100 (low risk) versus 32/100 (moderate risk). The 1.0 T3 and 1.3 T4 FireFly Turbo has no documented serious faults; the E-Tech Híbrido has 2 documented serious faults, the main one being «Multi-mode gearbox failure (risk of breakage)».

Risk index

1.0 T3 and 1.3 T4 FireFly Turbo

18

Low risk · 0 serious faults

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

15 sourcesHow we work

Is the 1.0 T3 and 1.3 T4 FireFly Turbo reliable?

The FireFly turbo 1.0 T3 and 1.3 T4 show no systemic fault in open sources; there are only isolated cases of jerking with replacement of the MultiAir block on the 1.0 and one engine failure on a 1.3. The evidence is thin and is not a guarantee of reliability.[1][2][3]

See the 2 of the 1.0 T3 and 1.3 T4 FireFly Turbo 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.[4][5][6]

See the 4 of the E-Tech Híbrido faults

Side-by-side comparison

Comparison of 1.0 T3 and 1.3 T4 FireFly Turbo and E-Tech Híbrido
1.0 T3 and 1.3 T4 FireFly TurboE-Tech Híbrido
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,332 cm³1,598 cm³
TimingChainChain
Power100–180 hp140–200 hp
Productionsince 2018[7]since 2020[4][8][9]
Reliability
Risk index (what is it?)18Low risk32Moderate risk
Documented faults24
Of high or critical severity02
Worst severityMedium severityHigh severity
Main faults
  1. Medium severity: Oil consumption and premature turbo wear on the 1.0 T3 and 1.3 T4
  2. Medium severity: Jerking and MultiAir block failures on the 1.0 T3
  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 repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • 1.3 GSE T4 Turbo 150-180 hp (FireFly, since 2018)[1][10]
  • 1.3 GSE T4 Turbo plug-in hybrid 4xe (130-180 hp from the petrol engine, since 2021)[11][12]
None
With cautionVersions to be cautious about
  • 1.0 GSE T3 Turbo 100-120 hp (FireFly, since 2018)[1][2]
  • 1.6 E-Tech Full Hybrid 140-145 (H4M, 2020+)[5][13]
  • 1.6 E-Tech Plug-in Hybrid 160 (H4M, 2020-2023)[14]
  • 1.2 E-Tech Full Hybrid 200 (HR12 turbo, 2022+)[6][15]
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

1.0 T3 and 1.3 T4 FireFly Turbo

E-Tech Híbrido

See the 12 models with the E-Tech Híbrido

Other comparisons

With the 1.0 T3 and 1.3 T4 FireFly Turbo

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. Fiabilité Jeep: témoignages de propriétairesfiches-auto.fr · Other source · consulted 29 October 2026 · in French
  2. Fiabilité Fiat: témoignages de propriétairesfiches-auto.fr · Other source · consulted 29 October 2026 · in French
  3. Broken chain in Firefly 1.0 engineFiat Forum · Owners' forum · consulted 30 October 2026
  4. Renault Clio VWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  5. Fiabilité et pannes de la Renault Clio 5Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  6. Fiabilité et pannes du Renault AustralFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Fiat Global Small EngineWikipedia (inglés) · Other source · consulted 29 October 2026
  8. Renault Captur IIWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  9. Renault AustralWikipedia (inglés) · Other source · consulted 27 September 2026
  10. Problemas Jeep CompassTotal Renting · Other source · consulted 29 October 2026 · in Spanish
  11. Jeep Renegade Problemecarwiki.de · Other source · consulted 29 October 2026 · in German
  12. Jeep Renegade 4xe plug-in hybrid reliability and safetyDriving Electric · Motoring press · consulted 29 October 2026
  13. Fiabilité et pannes du Renault ArkanaFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  14. Fiabilité et pannes du Renault Captur IIFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  15. Fiabilité et pannes du Renault Espace 6Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French