0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 16v: which engine is more reliable?
According to our risk index, the 0.9 TwinAir and 1.0/1.3 FireFly carries less risk than the 1.2 16v: 32/100 versus 36/100 (both moderate risk). The 0.9 TwinAir and 1.0/1.3 FireFly has 1 documented serious fault, the main one being «Early turbocharger failure (0.9 TwinAir)»; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».
The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated
Is the 0.9 TwinAir and 1.0/1.3 FireFly reliable?
The 0.9 TwinAir (2010-2020) and the 1.0/1.3 FireFly (from 2018, with a mild-hybrid version from 2020) are the small petrol engines of Fiat, Jeep and Lancia. The TwinAir has no systemic faults, but it does have repeated, minority cases of turbo, MultiAir unit, oil consumption and clutch or flywheel wear, consistent with its uneven two-cylinder running. The newer FireFly has so far recorded little more than isolated Start&Stop faults.[1][2][3][4][5]
See the 5 of the 0.9 TwinAir and 1.0/1.3 FireFly faultsIs the 1.2 16v reliable?
The 1.2 16v (D4F) and its 8-valve predecessor, the D7F, are simple naturally aspirated engines, used for over two decades as the entry-level option in Renault and Dacia cars, with a reputation for reliability: the reliability pages consulted document no catastrophic failures and no oil consumption. The most-cited problems are ignition coils and sensors and, on higher-mileage cars, the head gasket.[6][7][8][9]
See the 5 of the 1.2 16v faultsSide-by-side comparison
| Item | 0.9 TwinAir and 1.0/1.3 FireFly | 1.2 16v |
|---|---|---|
| Technical data | ||
| Type | Engine | Engine |
| Fuel | Petrol | Petrol |
| Displacement | — | 1,149 cm³ |
| Timing | Chain | Timing belt (dry) |
| Power | 70–180 hp | 60–76 hp |
| Production | since 2010[10][11] | 2001–2020[12][13][14][15] |
| Reliability | ||
| Risk index (what is it?) | 32Moderate risk | 36Moderate risk |
| Documented faults | 5 | 5 |
| Of high or critical severity | 1 | 1 |
| Worst severity | High severity | High severity |
| Main faults |
|
|
| Most expensive documented repair | No reliable data | No reliable data |
| Which versions to buy | ||
| BuyRecommended versions | ||
| With cautionVersions to be cautious about | 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
Other comparisons
With the 0.9 TwinAir and 1.0/1.3 FireFly
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 PureTech
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 PureTech
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 and 1.4 TSI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 TSI / 1.5 TSI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 TCe
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 EcoBoost
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.3 TCe
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 EcoBoost
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 TSI / TFSI
- 0.9 TwinAir and 1.0/1.3 FireFly vs Audi 3.0 TFSI V6
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW B38 / B37
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW B48 / B38
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW B58
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW M54
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N13
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N20
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N43/N46
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N52 / N53
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N54/N55
- 0.9 TwinAir and 1.0/1.3 FireFly vs BMW N62 / N63
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 8v Fire
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 T-Jet
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 T3 and 1.3 T4 FireFly Turbo
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.5 EcoBoost
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.25/1.4/1.6 Ti-VCT
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 / 1.4 / 1.8 i-VTEC
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 / 1.5 VTEC Turbo
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 / 2.4 i-VTEC
- 0.9 TwinAir and 1.0/1.3 FireFly vs Honda e:HEV / i-MMD
- 0.9 TwinAir and 1.0/1.3 FireFly vs Honda IMA híbrido
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 T-GDI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 GDI / T-GDI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 GDi híbrido (Kappa)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 / 1.25 MPi
- 0.9 TwinAir and 1.0/1.3 FireFly vs Smartstream 1.6 T-GDi
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 / 2.4 GDI and T-GDI (Theta II)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 and 3.0 Ingenium gasolina
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.3 MZR DISI Turbo
- 0.9 TwinAir and 1.0/1.3 FireFly vs MZR gasolina
- 0.9 TwinAir and 1.0/1.3 FireFly vs Skyactiv-G
- 0.9 TwinAir and 1.0/1.3 FireFly vs M111
- 0.9 TwinAir and 1.0/1.3 FireFly vs M112 / M113
- 0.9 TwinAir and 1.0/1.3 FireFly vs M264/M254
- 0.9 TwinAir and 1.0/1.3 FireFly vs M260
- 0.9 TwinAir and 1.0/1.3 FireFly vs M271
- 0.9 TwinAir and 1.0/1.3 FireFly vs M272/M273
- 0.9 TwinAir and 1.0/1.3 FireFly vs M270/M274
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.5 VTi-TECH / T-GDI
- 0.9 TwinAir and 1.0/1.3 FireFly vs MIVEC gasolina
- 0.9 TwinAir and 1.0/1.3 FireFly vs Mitsubishi PHEV
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 DIG-T
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.5 VC-Turbo e-Power
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 HR12DE and 1.2 DIG-S (HR12DDR)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 MR20DE / 2.5 QR25DE
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 16v HR16DE / H4M
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0/1.2/1.4 Ecotec
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 Turbo
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 and 1.8 Ecotec 16v
- 0.9 TwinAir and 1.0/1.3 FireFly vs Porsche V8 and V6 (Cayenne and Panamera)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 and 1.6 TU3/TU5
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4/1.6 VTi
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 THP
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 and 2.2 16v EW10/EW12
- 0.9 TwinAir and 1.0/1.3 FireFly vs 0.9 TCe
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 SCe (B4D)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 TCe / SCe
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 and 1.6 8v
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.8 TCe
- 0.9 TwinAir and 1.0/1.3 FireFly vs E-Tech Híbrido
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 16v F4R and F4RT
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 and 1.6 16v
- 0.9 TwinAir and 1.0/1.3 FireFly vs Rover K-Series
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 and 1.4 Boosterjet
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 Dualjet and 1.2 VVT
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.5 K15B (Jimny)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.3, 1.5 and 1.6 gasolina (serie M)
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 VVT-i
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 Turbo
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.33 Dual VVT-i
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4, 1.6 and 1.8 VVT-i
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.5 Hybrid
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.6 Dual VVT-i
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.8 Hybrid
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 and 2.4 VVT-i
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 and 2.5 Hybrid
- 0.9 TwinAir and 1.0/1.3 FireFly vs Volvo 5 cilindros gasolina
- 0.9 TwinAir and 1.0/1.3 FireFly vs Drive-E gasolina
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.0 MPI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.2 12V
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.4 16v and 1.6 MPI/FSI
- 0.9 TwinAir and 1.0/1.3 FireFly vs 1.8 T 20v
- 0.9 TwinAir and 1.0/1.3 FireFly vs 2.0 FSI
- 0.9 TwinAir and 1.0/1.3 FireFly vs VW 2.0 TFSI EA113
With the 1.2 16v
- 1.2 16v vs 1.2 PureTech
- 1.2 16v vs 1.0 PureTech
- 1.2 16v vs 1.2 and 1.4 TSI
- 1.2 16v vs 1.0 TSI / 1.5 TSI
- 1.2 16v vs 1.2 TCe
- 1.2 16v vs 1.0 EcoBoost
- 1.2 16v vs 1.3 TCe
- 1.2 16v vs 1.6 EcoBoost
- 1.2 16v vs 2.0 TSI / TFSI
- 1.2 16v vs Audi 3.0 TFSI V6
- 1.2 16v vs BMW B38 / B37
- 1.2 16v vs BMW B48 / B38
- 1.2 16v vs BMW B58
- 1.2 16v vs BMW M54
- 1.2 16v vs BMW N13
- 1.2 16v vs BMW N20
- 1.2 16v vs BMW N43/N46
- 1.2 16v vs BMW N52 / N53
- 1.2 16v vs BMW N54/N55
- 1.2 16v vs BMW N62 / N63
- 1.2 16v vs 1.2 8v Fire
- 1.2 16v vs 1.4 T-Jet
- 1.2 16v vs 1.0 T3 and 1.3 T4 FireFly Turbo
- 1.2 16v vs 1.5 EcoBoost
- 1.2 16v vs 1.25/1.4/1.6 Ti-VCT
- 1.2 16v vs 1.2 / 1.4 / 1.8 i-VTEC
- 1.2 16v vs 1.0 / 1.5 VTEC Turbo
- 1.2 16v vs 2.0 / 2.4 i-VTEC
- 1.2 16v vs Honda e:HEV / i-MMD
- 1.2 16v vs Honda IMA híbrido
- 1.2 16v vs 1.0 T-GDI
- 1.2 16v vs 1.6 GDI / T-GDI
- 1.2 16v vs 1.6 GDi híbrido (Kappa)
- 1.2 16v vs 1.0 / 1.25 MPi
- 1.2 16v vs Smartstream 1.6 T-GDi
- 1.2 16v vs 2.0 / 2.4 GDI and T-GDI (Theta II)
- 1.2 16v vs 2.0 and 3.0 Ingenium gasolina
- 1.2 16v vs 2.3 MZR DISI Turbo
- 1.2 16v vs MZR gasolina
- 1.2 16v vs Skyactiv-G
- 1.2 16v vs M111
- 1.2 16v vs M112 / M113
- 1.2 16v vs M264/M254
- 1.2 16v vs M260
- 1.2 16v vs M271
- 1.2 16v vs M272/M273
- 1.2 16v vs M270/M274
- 1.2 16v vs 1.5 VTi-TECH / T-GDI
- 1.2 16v vs MIVEC gasolina
- 1.2 16v vs Mitsubishi PHEV
- 1.2 16v vs 1.6 DIG-T
- 1.2 16v vs 1.5 VC-Turbo e-Power
- 1.2 16v vs 1.2 HR12DE and 1.2 DIG-S (HR12DDR)
- 1.2 16v vs 2.0 MR20DE / 2.5 QR25DE
- 1.2 16v vs 1.6 16v HR16DE / H4M
- 1.2 16v vs 1.0/1.2/1.4 Ecotec
- 1.2 16v vs 1.4 Turbo
- 1.2 16v vs 1.6 and 1.8 Ecotec 16v
- 1.2 16v vs Porsche V8 and V6 (Cayenne and Panamera)
- 1.2 16v vs 1.4 and 1.6 TU3/TU5
- 1.2 16v vs 1.4/1.6 VTi
- 1.2 16v vs 1.6 THP
- 1.2 16v vs 2.0 and 2.2 16v EW10/EW12
- 1.2 16v vs 0.9 TCe
- 1.2 16v vs 1.0 SCe (B4D)
- 1.2 16v vs 1.0 TCe / SCe
- 1.2 16v vs 1.4 and 1.6 8v
- 1.2 16v vs 1.8 TCe
- 1.2 16v vs E-Tech Híbrido
- 1.2 16v vs 2.0 16v F4R and F4RT
- 1.2 16v vs 1.4 and 1.6 16v
- 1.2 16v vs Rover K-Series
- 1.2 16v vs 1.0 and 1.4 Boosterjet
- 1.2 16v vs 1.2 Dualjet and 1.2 VVT
- 1.2 16v vs 1.5 K15B (Jimny)
- 1.2 16v vs 1.3, 1.5 and 1.6 gasolina (serie M)
- 1.2 16v vs 1.0 VVT-i
- 1.2 16v vs 1.2 Turbo
- 1.2 16v vs 1.33 Dual VVT-i
- 1.2 16v vs 1.4, 1.6 and 1.8 VVT-i
- 1.2 16v vs 1.5 Hybrid
- 1.2 16v vs 1.6 Dual VVT-i
- 1.2 16v vs 1.8 Hybrid
- 1.2 16v vs 2.0 and 2.4 VVT-i
- 1.2 16v vs 2.0 and 2.5 Hybrid
- 1.2 16v vs Volvo 5 cilindros gasolina
- 1.2 16v vs Drive-E gasolina
- 1.2 16v vs 1.0 MPI
- 1.2 16v vs 1.2 12V
- 1.2 16v vs 1.4 16v and 1.6 MPI/FSI
- 1.2 16v vs 1.8 T 20v
- 1.2 16v vs 2.0 FSI
- 1.2 16v vs VW 2.0 TFSI EA113
Compare other engines
Sources
Every fact on this page links to its source. If you find an error, let us know.
- Fiabilité et pannes de la Fiat 500 (2007)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes de la Fiat Panda (depuis 2012)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes du Jeep RenegadeFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiat 500 (ab 2007) – alle bekannten Probleme & KrankheitenGebrauchtwagenberater.de · Motoring press · published 24 November 2023 · consulted 27 September 2026 · in German
- Fiat Panda III (seit 2011) – Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 21 January 2023 · consulted 27 September 2026 · in German
- Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
- Fiat TwinAir engineWikipedia (inglés) · Other source · consulted 27 September 2026
- Fiat Global Small EngineWikipedia (inglés) · Other source · consulted 27 September 2026
- Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
- Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
- Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
- Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
- Fiabilité et pannes de la Fiat 500XFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes du Dacia SanderoFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
- Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French