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1.0 TSI / 1.5 TSI 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 1.0 TSI / 1.5 TSI: 6/100 versus 23/100 (both low risk). The 1.0 TSI / 1.5 TSI has no documented serious faults; the 1.0 and 1.4 Boosterjet has no documented serious faults.

Risk index

1.0 TSI / 1.5 TSI

23

Low risk · 0 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

23 sourcesHow we work

Is the 1.0 TSI / 1.5 TSI reliable?

The three-cylinder 1.0 TSI has a reputation for being robust and has no systematic serious faults. The 2017–2019 1.5 TSI evo suffered cold-start jerking at low speed, which Volkswagen corrected with software between 2019 and 2020; later units and the 2022 evo2 are more mature. Watch for coolant leaks and check the 2019 and 2020 recalls.[1][2][3][4][5]

See the 5 of the 1.0 TSI / 1.5 TSI 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.[6][7][8][9][10]

See the 4 of the 1.0 and 1.4 Boosterjet faults

Side-by-side comparison

Comparison of 1.0 TSI / 1.5 TSI and 1.0 and 1.4 Boosterjet
1.0 TSI / 1.5 TSI1.0 and 1.4 Boosterjet
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement——
TimingTiming belt (dry)Chain
Power82–150 hp110–140 hp
Productionsince 2014[11][12][13][14][15]since 2015[6][16][17][18]
Reliability
Risk index (what is it?)23Low risk6Low risk
Documented faults54
Of high or critical severity00
Worst severityMedium severityLow severity
Main faults
  1. Medium severity: Coolant leaks from the water pump and thermostat module
  2. Low severity: Cold jerking at low speed ("kangaroo effect") on the 1.5 TSI evo
  3. Medium severity: Lack of torque on starting in the manual 150 hp 1.5 TSI (2019 recall)
  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 versions
  • 1.0 TSI EA211 (CHZ, DKL, DKR; 2014 onwards)[1][2][5]
  • 1.0 TSI / 1.0 eTSI evo (DLAA, DLAB; 2020 onwards)[1][13]
  • 1.5 TSI / 1.5 eTSI evo 114/130/150 hp (DPCA, DPBC; built from 2020)[1][19]
  • 1.5 TSI / 1.5 eTSI evo2 116/150 hp (DXDB, DNKA; 2022 onwards)[1][20]
  • 1.0 Boosterjet 110-112 hp (K10C, three-cylinder, 2015-present)[7][8][21][22]
  • 1.4 Boosterjet 140 hp (K14C, non-hybrid, 2015-2020 in Europe)[7][8][23]
  • 1.4 Boosterjet Mild Hybrid 129 hp (K14D, 48V SHVS, since 2020)[17][18]
With cautionVersions to be cautious about
  • 1.5 TSI evo 130/150 hp (DACA, DADA, DPBA; 2017–2019)[1][3][4]
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

1.0 TSI / 1.5 TSI

See the 42 models with the 1.0 TSI / 1.5 TSI

1.0 and 1.4 Boosterjet

See the 12 models with the 1.0 and 1.4 Boosterjet

Other comparisons

With the 1.0 TSI / 1.5 TSI

With the 1.0 and 1.4 Boosterjet

Compare other engines

That is the comparison you are viewing: change one of the two engines.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Zuverlässigkeit der TSI-Motoren von 1.0 bis 2.0: welche Jahrgänge und Generationen Probleme machenAutohled · Motoring press · published 15 June 2026 · consulted 26 September 2026 · in German
  2. VW EA211: Typische Probleme und HaltbarkeitGebrauchtwagenberater · Motoring press · published 26 August 2026 · consulted 26 September 2026 · in German
  3. ¿Tu motor 1.5 TSI de Volkswagen sufre de tirones en frío? Llegan novedadesMotor.es · Motoring press · published 5 September 2019 · consulted 26 September 2026 · in Spanish
  4. VW, Seat und Skoda: Rückruf wegen Motorsoftware-Updatekfz-betrieb (Vogel Communications) · Motoring press · published 30 September 2019 · consulted 26 September 2026 · in German
  5. Rückruf bei VW, Seat und Skoda: Neue Einspritzanlage für TSI-Motorkfz-betrieb (Vogel Communications) · Motoring press · published 29 July 2020 · consulted 26 September 2026 · in German
  6. Suzuki K engineWikipedia · Other source · consulted 27 September 2026
  7. Gebrauchtwagen-Check: Grundsätzlich gut: Der Suzuki Vitara beim TÜVVolksstimme (dpa) · General press · published January 2026 · consulted 27 September 2026 · in German
  8. Suzuki Swift als Gebrauchtwagen: Diese Punkte beanstandet der TÜV häufigT-Online · General press · published October 2025 · consulted 27 September 2026 · in German
  9. 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
  10. Test complet Suzuki VitaraFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  11. VW EA211Wikipedia (alemán) · Other source · consulted 26 September 2026 · in German
  12. VW EA211 evoWikipedia (alemán) · Other source · consulted 26 September 2026 · in German
  13. The compact all-rounder: TSI evo engine with a capacity of 1.0 and 1.5 litresVolkswagen Newsroom · Manufacturer · published 8 December 2020 · consulted 26 September 2026
  14. Golf eTSI, Golf eHybrid and Golf GTE – International Media Drive (dossier de prensa)Volkswagen AG · Manufacturer · published August 2020 · consulted 26 September 2026
  15. Prueba de consumo (251): VW Golf Evo 1.5-TSI ACT 150 CV DSG Sport R-Line 5pkm77 · Motoring press · published 22 January 2018 · consulted 26 September 2026 · in Spanish
  16. Suzuki motor KWikipedia · Other source · consulted 27 September 2026 · in Spanish
  17. 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
  18. 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
  19. Efecto canguro, el problema de los tirones en frío de los motores 1.5 TSI del Grupo VolkswagenSeis en Línea · Motoring press · consulted 26 September 2026 · in Spanish
  20. Volkswagen EA211 engineWikipedia (inglés) · Other source · consulted 26 September 2026
  21. Suzuki Vitara : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  22. Suzuki Swift 3 : avis, qualités et défauts des propriétairesFiches-auto.fr · Owners' forum · consulted 27 September 2026 · in French
  23. Prueba Suzuki Swift Sport 1.4 Boosterjet 140 CVActualidad Motor · Motoring press · published 16 May 2018 · consulted 27 September 2026 · in Spanish