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1.6 EcoBoost vs 1.0 and 1.4 Boosterjet: which engine is more reliable?

According to our risk index, the 1.0 and 1.4 Boosterjet carries less risk than the 1.6 EcoBoost: 6/100 (low risk) versus 59/100 (high risk). The 1.6 EcoBoost has 3 documented serious faults, the main one being «Cracked cylinder head from overheating, with fire risk»; the 1.0 and 1.4 Boosterjet has no documented serious faults.

Risk index

1.6 EcoBoost

59

High risk · 3 serious faults

Risk index

1.0 and 1.4 Boosterjet

6

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

19 sourcesHow we work

Is the 1.6 EcoBoost reliable?

It is a turbocharged direct-injection four-cylinder that Ford used between 2010 and 2018 as a mid-range step across much of its European line-up, and which Volvo sold under its own T3/T4 designations. Its most serious fault is overheating caused by a loss of coolant circulation that can crack the cylinder head and cause a fire: Ford has recalled cars in South Africa and in the US/Canada, although we have not confirmed an equivalent campaign in Spain.[1][2][3]

See the 4 of the 1.6 EcoBoost faults

Is the 1.0 and 1.4 Boosterjet reliable?

The Suzuki Boosterjet (1.0 K10C and 1.4 K14C/K14D) is a turbocharged direct-injection petrol engine with a timing chain, fitted since 2015 to the Vitara, S-Cross, Swift Sport and Baleno, with a 48 V mild-hybrid variant of the 1.4 since 2020. German TÜV inspection reports and the workshops we consulted rate its reliability as high: no widespread fault with the chain, oil, fuel pump or mild-hybrid system is documented.[4][5][6][7][8]

See the 4 of the 1.0 and 1.4 Boosterjet faults

Side-by-side comparison

Comparison of 1.6 EcoBoost and 1.0 and 1.4 Boosterjet
1.6 EcoBoost1.0 and 1.4 Boosterjet
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement1,596 cm³—
TimingTiming belt (dry)Chain
Power120–200 hp110–140 hp
Production2010–2019[1][9]since 2015[4][10][11][12]
Reliability
Risk index (what is it?)59High risk6Low risk
Documented faults44
Of high or critical severity30
Worst severityCritical severityLow severity
Main faults
  1. Critical severity: Cracked cylinder head from overheating, with fire risk
  2. High severity: Coolant loss from hoses, water pump or expansion tank
  3. High severity: Premature turbocharger failure
  1. Low severity: Timing chain: no documented pattern of failures
  2. Low severity: Oil consumption: no documented pattern
  3. Low severity: Direct injection and fuel pump: no documented faults or recalls
Most expensive documented repairNo reliable dataNo reliable data
Which versions to buy
BuyRecommended versionsNone
  • 1.0 Boosterjet 110-112 hp (K10C, three-cylinder, 2015-present)[5][6][13][14]
  • 1.4 Boosterjet 140 hp (K14C, non-hybrid, 2015-2020 in Europe)[5][6][15]
  • 1.4 Boosterjet Mild Hybrid 129 hp (K14D, 48V SHVS, since 2020)[11][12]
With cautionVersions to be cautious about
  • 1.6 EcoBoost 120/150/160/182 (Ford, 2010-2019)[3][16][17]
  • 1.6 EcoBoost ST 182/197/200 (Ford Fiesta ST/ST200, 2013-2017)[1][18]
  • Volvo T3/T4 1.6 (B4164T3/B4164T/B4164T2, 2010-2018)[19]
None
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

1.6 EcoBoost

See the 11 models with the 1.6 EcoBoost

1.0 and 1.4 Boosterjet

See the 12 models with the 1.0 and 1.4 Boosterjet

Other comparisons

With the 1.6 EcoBoost

With the 1.0 and 1.4 Boosterjet

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. Ford EcoBoost engineWikipedia · Other source · consulted 27 September 2026
  2. The Largest Ford EcoBoost Recalls In 15 Years Of ProductionCarBuzz · Motoring press · consulted 27 September 2026
  3. Ford KugaWikipedia · Other source · consulted 27 September 2026
  4. Suzuki K engineWikipedia · Other source · consulted 27 September 2026
  5. Gebrauchtwagen-Check: Grundsätzlich gut: Der Suzuki Vitara beim TÜVVolksstimme (dpa) · General press · published January 2026 · consulted 27 September 2026 · in German
  6. Suzuki Swift als Gebrauchtwagen: Diese Punkte beanstandet der TÜV häufigT-Online · General press · published October 2025 · consulted 27 September 2026 · in German
  7. Los mecánicos recomiendan el Suzuki Vitara porque no presume de moderno, sino de sencillo y baratoEl Nacional · General press · published September 2026 · consulted 27 September 2026 · in Spanish
  8. Test complet Suzuki VitaraFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  9. Volvo S60Wikipedia · Other source · consulted 27 September 2026
  10. Suzuki motor KWikipedia · Other source · consulted 27 September 2026 · in Spanish
  11. Suzuki Swift Sport, Vitara y S-Cross: nuevas versiones micro-híbridas de 48VAutopista.es · Motoring press · published 16 December 2019 · consulted 27 September 2026 · in Spanish
  12. Suzuki S-Cross 1.4 Boosterjet Mild Hybrid 2020: precios y datos del nuevo SUVAutopista.es · Motoring press · published 12 March 2020 · consulted 27 September 2026 · in Spanish
  13. Suzuki Vitara : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  14. Suzuki Swift 3 : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  15. Prueba Suzuki Swift Sport 1.4 Boosterjet 140 CVActualidad Motor · Motoring press · published 16 May 2018 · consulted 27 September 2026 · in Spanish
  16. Fiabilité et pannes Ford Mondeo 3Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
  17. Fiabilité et pannes Ford S-MaxFiches-auto.fr · Other source · consulted 27 September 2026 · in French
  18. Ford Fiesta STWikipedia · Other source · consulted 27 September 2026
  19. Fiabilité et pannes Volvo S60Fiches-auto.fr · Other source · consulted 27 September 2026 · in French