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1.0 EcoBoost vs 2.0 EcoBoost: which engine is more reliable?

According to our risk index, the 2.0 EcoBoost carries less risk than the 1.0 EcoBoost: 38/100 (moderate risk) versus 71/100 (high risk). The 1.0 EcoBoost has 3 documented serious faults, the main one being «Degradation of the timing belt running in oil»; the 2.0 EcoBoost has 1 documented serious fault, the main one being «Coolant entering the cylinders through block cracks».

Risk index

1.0 EcoBoost

71

High risk · 3 serious faults

Risk index

2.0 EcoBoost

38

Moderate risk · 1 serious fault

Lower risk

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

22 sourcesHow we work

Is the 1.0 EcoBoost reliable?

It is a turbocharged direct-injection three-cylinder that has won Engine of the Year several times, but it has two very well-documented weak points: two belts running in oil (timing and oil pump) that can disintegrate and seize the engine, and cases of coolant leaks and overheating in early units. It is best bought with a service history and the belts checked or replaced on time.[1][2][3][4]

See the 4 of the 1.0 EcoBoost faults

Is the 2.0 EcoBoost reliable?

This is the direct-injection turbo 2.0 that Ford fitted from 2010 to the Mondeo, S-Max, Galaxy, Kuga and Focus ST, and that Volvo, Land Rover and Jaguar also used. Its most serious weak point is cracks in the block that let coolant into the cylinders (a Ford bulletin in North America; cited for the Mondeo and Kuga); we have not found a European recall.[5][6][7][8]

See the 3 of the 2.0 EcoBoost faults

Side-by-side comparison

Comparison of 1.0 EcoBoost and 2.0 EcoBoost
1.0 EcoBoost2.0 EcoBoost
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement999 cm³1,999 cm³
TimingWet belt (belt-in-oil)Chain
Power100–155 hp203–250 hp
Productionsince 2012[1][9][10][11]2010–2018[1][12]
Reliability
Risk index (what is it?)71High risk38Moderate risk
Documented faults43
Of high or critical severity31
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Degradation of the timing belt running in oil
  2. Critical severity: Oil pump belt and tensioner failure
  3. Critical severity: Coolant leaks and overheating from the turbo hose
  1. Critical severity: Coolant entering the cylinders through block cracks
  2. Medium severity: Carbon build-up on injectors and intake valves from direct injection
  3. Medium severity: Turbo faults: sensor, pressure solenoid and noise
Most expensive documented repairup to €1,200Degradation of the timing belt running in oilPublished figure[2]No reliable data
Which versions to buy
BuyRecommended versionsNoneNone
With cautionVersions to be cautious about
  • 1.0 EcoBoost 100/125 (Fox, 2012-2017)[2][3][13]
  • 1.0 EcoBoost 100/125/140 with cylinder deactivation (from ~2017)[14][15]
  • 1.0 EcoBoost Hybrid 48V mild hybrid (125/155 hp, from 2019)[1][16]
  • 2.0 EcoBoost 203/240 hp (Mondeo IV, S-Max I and Galaxy II, 2010-2014)[5][17]
  • 2.0 EcoBoost 203/240 hp (Mondeo V, S-Max II and Galaxy III, 2014-2018)[5][6][18]
  • 2.0 EcoBoost ST 250 hp (Focus ST, 2012-2018)[17][19][20]
  • 2.0 EcoBoost 242 hp 4x4 (Kuga II, 2017-2018)[5][7]
  • Volvo 2.0T 203 hp and T5 240 hp (B4204T6 and B4204T7, 2010-2013)[1][21]
  • Land Rover and Jaguar Si4 240 hp (Evoque, Freelander 2, Discovery Sport and XF, 2011-2016)[22]
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 EcoBoost

See the 12 models with the 1.0 EcoBoost

2.0 EcoBoost

See the 17 models with the 2.0 EcoBoost

Other comparisons

With the 1.0 EcoBoost

With the 2.0 EcoBoost

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 26 September 2026
  2. Alerta Ford: la correa de distribución del 1.0 EcoBoost puede romper el motor y la NHTSA ya investigaMotor16 · Motoring press · consulted 26 September 2026 · in Spanish
  3. Los Ford 1.0 EcoBoost tricilíndricos están dando problemas de correas bañadas que recuerdan al caso PureTechMotor.es · Motoring press · consulted 26 September 2026 · in Spanish
  4. Gripa el motor por problema en el manguito se queda sin refrigeranteOpinautos · Owners' forum · consulted 26 September 2026 · in Spanish
  5. TSB 19-2346: 2.0L EcoBoost - Coolant In Cylinders, White Exhaust Smoke And/Or Illuminated MILFord Motor Company · Manufacturer · published 19 December 2019 · consulted 2 November 2026
  6. Ford Mondeo: Probleme, Krankheiten und Rückrufe (Mondeo MK5)Gebrauchtwagenberater.de · Other source · consulted 2 November 2026 · in German
  7. Ford Kuga: Probleme, Krankheiten und Kaufberatung (Kuga MK2)Gebrauchtwagenberater.de · Other source · consulted 2 November 2026 · in German
  8. Ford Mondeo (2010 – 2014): engine fire (código Ford 17S09)car-recalls.eu · Other source · published October 2021 · consulted 2 November 2026
  9. Prueba: Ford Fiesta 1.0 EcoBoost 100 CV (2013)km77 · Motoring press · consulted 26 September 2026 · in Spanish
  10. Ford Mondeo Berlina Trend 1.0 EcoBoost 92 kW (125 CV) (2015-2018): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
  11. Ford B-MAX Trend 1.0 EcoBoost 100 CV (2012-2018): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
  12. Ford Focus (third generation)Wikipedia · Other source · consulted 2 November 2026
  13. Ford EcoBoost engines: reliability, problems and should you buy one?Carbuyer · Motoring press · consulted 26 September 2026
  14. Ford's Self-Clogging 1.0-Liter EcoBoost Engine Is Finally Getting RecalledThe Drive · Motoring press · consulted 26 September 2026
  15. The Largest Ford EcoBoost Recalls In 15 Years Of ProductionCarBuzz · Motoring press · consulted 26 September 2026
  16. Stellantis no es el único afectado por la correa de distribución bañada en aceiteAutofácil · Motoring press · consulted 26 September 2026 · in Spanish
  17. Ford EcoBoost Probleme (2.0 und 2.3)Carwiki.de · Other source · consulted 2 November 2026 · in German
  18. Ford Mondeo (tabla de motores del Mondeo V)Wikipedia · Other source · consulted 2 November 2026 · in Spanish
  19. Used Ford Focus ST (Mk3, 2012-2019) review and buyer's guideAuto Express · Motoring press · consulted 2 November 2026
  20. Fiabilité et pannes Ford Focus 3 (2011-2018)Fiches-auto.fr · Other source · consulted 2 November 2026 · in French
  21. Volvo V60 I (2010 – 2018) – Typische Probleme & KrankheitenGebrauchtwagenberater.de · Other source · consulted 2 November 2026 · in German
  22. Fiabilité et pannes Land Rover Range Rover Evoque (2011-2018)Fiches-auto.fr · Other source · consulted 2 November 2026 · in French