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1.2 8v Fire 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 1.2 8v Fire: 7/100 versus 20/100 (both low risk). The 1.2 8v Fire has no documented serious faults; the 1.5 VTi-TECH / T-GDI has no documented serious faults.

Risk index

1.2 8v Fire

20

Low risk · 0 serious faults

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

21 sourcesHow we work

Is the 1.2 8v Fire reliable?

The 1.2 8v Fire is one of Fiat's simplest and most widespread petrol engines, with more than two decades in production and no serious or systemic faults documented. The sources consulted describe it as robust: its most-cited issues are isolated sensor failures (lambda sensor, crankshaft sensor), the ignition coil and somewhat high oil consumption at higher mileages; there is no pattern of timing belt breakage.[1][2][3][4][5][6]

See the 4 of the 1.2 8v Fire 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.[7][8][9][10][11][12]

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

Side-by-side comparison

Comparison of 1.2 8v Fire and 1.5 VTi-TECH / T-GDI
1.2 8v Fire1.5 VTi-TECH / T-GDI
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,242 cm³—
TimingTiming belt (dry)Chain
Power60–69 hp106–170 hp
Production1999–2020[13][14][15][16]since 2017[7][8][17][18][19]
Reliability
Risk index (what is it?)20Low risk7Low risk
Documented faults42
Of high or critical severity00
Worst severityMedium severityLow severity
Main faults
  1. Medium severity: Sensor failures: lambda sensor and crankshaft position sensor (TDC)
  2. Low severity: Oil consumption or leak, in one case from the rocker cover gasket
  3. Low severity: Faulty ignition coil (misfire, engine warning light)
  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 repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versions
  • 1.2 8v SMPI 60-65 hp (1999-2009)[1]
  • 1.2 8v VVT 69 hp (2007-2020)[2][3][5][6]
  • 1.5 VTi-TECH naturally aspirated 106 hp (NSE / NSE Plus, from 2017)[10]
With cautionVersions to be cautious aboutNone
  • 1.5 T-GDI turbo 162 hp (GS61H, 2018-2024)[11][12][20][21]
  • 1.5 T-GDI turbo 170 hp (15FDE / 15FKE, from 2024)[8]
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

1.2 8v Fire

See the 7 models with the 1.2 8v Fire

1.5 VTi-TECH / T-GDI

Other comparisons

With the 1.2 8v Fire

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. Fiabilité et pannes de la Fiat Panda (2003-2012)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  2. Fiabilité et pannes de la Fiat Panda (depuis 2012)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  3. Fiabilité et pannes de la Fiat 500Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  4. Fiabilité et pannes de la Fiat Punto (Grande Punto / Punto Evo / Punto)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiat Panda III (seit 2011) – Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 21 January 2023 · consulted 27 September 2026 · in German
  6. Fiat 500 (ab 2007) – alle bekannten Probleme & KrankheitenGebrauchtwagenberater.de · Motoring press · published 24 November 2023 · consulted 27 September 2026 · in German
  7. MG ZS (crossover)Wikipedia (inglés) · Other source · consulted 27 September 2026
  8. MG HSWikipedia (inglés) · Other source · consulted 27 September 2026
  9. Essai complet : MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  10. Fiabilité et pannes du MG ZSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  11. Fiabilité et pannes du MG eHSFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  12. 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
  13. Fiat FIRE engineWikipedia (inglés) · Other source · consulted 27 September 2026
  14. Fiat 500 (2007)Wikipedia (inglés) · Other source · consulted 27 September 2026
  15. Fiat Grande PuntoWikipedia (inglés) · Other source · consulted 27 September 2026
  16. Ford KaWikipedia (inglés) · Other source · consulted 27 September 2026
  17. MG HSWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  18. MG HSWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  19. List of General Motors enginesWikipedia (inglés) · Other source · consulted 27 September 2026
  20. MG – Common problems (llamadas a revisión de la UE y del Reino Unido)car-recalls.eu · Other source · consulted 30 October 2026
  21. MG HS SUV (2019-2024) Exclusive 1.5T-GDI 5d: opinión de propietario (10 jun 2022)Parkers · Owners' forum · published 10 June 2022 · consulted 30 October 2026