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1.0 T3 and 1.3 T4 FireFly Turbo vs 1.3, 1.5 and 1.6 gasolina (serie M): 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 1.3, 1.5 and 1.6 gasolina (serie M): 18/100 (low risk) versus 27/100 (moderate risk). The 1.0 T3 and 1.3 T4 FireFly Turbo has no documented serious faults; the 1.3, 1.5 and 1.6 gasolina (serie M) has no documented serious faults.

Risk index

1.0 T3 and 1.3 T4 FireFly Turbo

18

Low risk · 0 serious faults

Lower risk

Risk index

1.3, 1.5 and 1.6 gasolina (serie M)

27

Moderate risk · 0 serious faults

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

18 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 1.3, 1.5 and 1.6 gasolina (serie M) reliable?

Suzuki's M series (the 1.3-litre M13A, 1.5-litre M15A and 1.6-litre M16A, with a timing chain and indirect injection) has a reputation as a simple, reliable engine: we have found no documented serious fault in the block or the chain. What is on record are minor faults or one-off campaigns: the catalytic converter and lambda sensors of the 2005-2010 Swift, the catalytic converter of the 2006-2007 SX4, the Swift's fuel hose and the Grand Vitara and Jimny tensioner pulley.[4][5][6][7][8][9]

See the 4 of the 1.3, 1.5 and 1.6 gasolina (serie M) faults

Side-by-side comparison

Comparison of 1.0 T3 and 1.3 T4 FireFly Turbo and 1.3, 1.5 and 1.6 gasolina (serie M)
1.0 T3 and 1.3 T4 FireFly Turbo1.3, 1.5 and 1.6 gasolina (serie M)
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,332 cm³—
TimingChainChain
Power100–180 hp83–136 hp
Productionsince 2018[10]since 1999[4][5][11]
Reliability
Risk index (what is it?)18Low risk27Moderate risk
Documented faults24
Of high or critical severity00
Worst severityMedium severityMedium 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. Medium severity: Faulty catalytic converter and lambda sensors on the 2005-2010 Swift (engine warning light)
  2. Medium severity: Accessory belt tensioner pulley on the Grand Vitara 1.6 and Jimny 1.3 (2010 campaign)
  3. Medium severity: Fuel hose damaged by rubbing on the Swift 1.3 and 1.5 (2005-2008)
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][12]
  • 1.3 GSE T4 Turbo plug-in hybrid 4xe (130-180 hp from the petrol engine, since 2021)[13][14]
  • 1.3 M13A 83-92 CV (Swift, Ignis and Jimny, 2003-2018)[5][6][9]
  • 1.5 M15A 99-109 CV (Swift, SX4 and Ignis, 2003-2012)[7][15]
  • 1.6 M16A 120-136 CV (SX4, Sedici, S-Cross, Vitara and Swift Sport, 2009-2018)[16][17][18]
With cautionVersions to be cautious about
  • 1.0 GSE T3 Turbo 100-120 hp (FireFly, since 2018)[1][2]
  • 1.6 M16A 107-125 CV (Swift Sport, SX4, Sedici and Grand Vitara, 2005-2009)[5][6][7]
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

1.3, 1.5 and 1.6 gasolina (serie M)

See the 9 models with the 1.3, 1.5 and 1.6 gasolina (serie M)

Other comparisons

With the 1.0 T3 and 1.3 T4 FireFly Turbo

With the 1.3, 1.5 and 1.6 gasolina (serie M)

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. Suzuki M engineWikipedia · Other source · consulted 8 October 2026
  5. Suzuki Swift MK4 MZ 2005-2010: Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
  6. Fiabilité et pannes Suzuki Swift (2005-2010)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
  7. Rückruf Suzuki SX4AUTO BILD · Motoring press · published 7 April 2008 · consulted 8 October 2026 · in German
  8. DVSA – base de llamadas a revisiónDVSA (Reino Unido) · Official body · consulted 8 October 2026
  9. Por 7.000 € puedes tener un Suzuki Jimny: guía de segunda manoDiariomotor · Motoring press · published 10 January 2024 · consulted 8 October 2026 · in Spanish
  10. Fiat Global Small EngineWikipedia (inglés) · Other source · consulted 29 October 2026
  11. Suzuki SX4 1.6 VVT 4x2 GL (2010-2012): datoskm77.com · Motoring press · consulted 8 October 2026 · in Spanish
  12. Problemas Jeep CompassTotal Renting · Other source · consulted 29 October 2026 · in Spanish
  13. Jeep Renegade Problemecarwiki.de · Other source · consulted 29 October 2026 · in German
  14. Jeep Renegade 4xe plug-in hybrid reliability and safetyDriving Electric · Motoring press · consulted 29 October 2026
  15. Suzuki SX4: Typische Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
  16. Suzuki Vitara (ab 2015): Bekannte Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
  17. Suzuki SX4 S-Cross JY 2013-2021: Probleme und SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 8 October 2026 · in German
  18. Fiabilité et pannes Suzuki Swift 2 (2010-2017)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French