1.0 EcoBoost vs 1.5 VC-Turbo e-Power: which engine is more reliable?

According to our risk index, the 1.5 VC-Turbo e-Power carries less risk than the 1.0 EcoBoost: 36/100 (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 1.5 VC-Turbo e-Power has 3 documented serious faults, the main one being «Safe mode due to battery controller calibration (loss of propulsion)».

Risk index

1.0 EcoBoost

High risk · 3 serious faults

Risk index

1.5 VC-Turbo e-Power

Moderate risk · 3 serious faults

Lower risk

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

Reviewed on 29 October 202618 sources How 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 1.5 VC-Turbo e-Power reliable?

There is still little reliability data: the three-cylinder 1.5 VC-Turbo only generates electricity and no mechanical faults are known in Europe. The documented weak points are in the e-Power electronics: battery campaigns and isolated cases of immobilisation.^[5][6][7]

See the 4 of the 1.5 VC-Turbo e-Power faults

Side-by-side comparison

Comparison of 1.0 EcoBoost and 1.5 VC-Turbo e-Power
Item	1.0 EcoBoost	1.5 VC-Turbo e-Power
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	999 cm³	1,497 cm³
Timing	Wet belt (belt-in-oil)	—
Power	100–155 hp	190–213 hp
Production	since 2012^{[1][8][9][10]}	since 2022^{[11][12][13][14]}
Reliability
Risk index (what is it?)	71High risk	36Moderate risk
Documented faults	4	4
Of high or critical severity	3	3
Worst severity	Critical severity	High severity
Main faults	Critical severity: Degradation of the timing belt running in oil Critical severity: Oil pump belt and tensioner failure Critical severity: Coolant leaks and overheating from the turbo hose	High severity: Safe mode due to battery controller calibration (loss of propulsion) High severity: Fuel line that slips out of its clip and may leak Medium severity: e-Power warning and limited mode due to incorrect state-of-charge reading
Most expensive documented repair	up to €1,200Degradation of the timing belt running in oilPublished figure^[2]	No reliable data
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.0 EcoBoost 100/125 (Fox, 2012-2017)^[2][3][15] 1.0 EcoBoost 100/125/140 with cylinder deactivation (from ~2017)^[16][17] 1.0 EcoBoost Hybrid 48V mild hybrid (125/155 hp, from 2019)^[1][18]	1.5 VC-Turbo e-Power 190 hp (Qashqai J12, since 2022)^[5][6][7] 1.5 VC-Turbo e-Power 204 hp (X-Trail T33, front-wheel drive, since 2022)^[5][11] 1.5 VC-Turbo e-Power e-4ORCE 213 hp (X-Trail T33, all-wheel drive, since 2022)^[11][13]
AvoidVersions to avoid	None	None

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

1.5 VC-Turbo e-Power

Other comparisons

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With the 1.5 VC-Turbo e-Power

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Sources

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

Ford EcoBoost engineWikipedia · Other source · consulted 26 September 2026
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
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
Gripa el motor por problema en el manguito se queda sin refrigeranteOpinautos · Owners' forum · consulted 26 September 2026 · in Spanish
Fiabilidad y averías del Nissan Qashqai 3 (2021)fiches-auto.fr · Motoring press · consulted 29 October 2026 · in French
Nissan Qashqai: richiamo per la batteria del sistema ibridoalVolante · Motoring press · published 4 August 2026 · consulted 29 October 2026 · in Italian
Nissanowski SUV z usterką systemu zarządzania akumulatoremAutokatalog.pl · Motoring press · published 2025 · consulted 29 October 2026 · in another language
Prueba: Ford Fiesta 1.0 EcoBoost 100 CV (2013)km77 · Motoring press · consulted 26 September 2026 · in Spanish
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
Ford B-MAX Trend 1.0 EcoBoost 100 CV (2012-2018): precio y ficha técnicakm77 · Technical documentation · consulted 26 September 2026 · in Spanish
Nissan X-Trail - WikipediaWikipedia · Other source · consulted 29 October 2026
Nissan KR engine - WikipediaWikipedia · Other source · consulted 29 October 2026
Nissan X-Trail (T33) - Wikipedia (versión alemana)Wikipedia · Other source · consulted 29 October 2026 · in German
Nissan z novim Qashqaijem uvaja e-Power v EvropiRTV Slovenija · General press · published 19 February 2021 · consulted 29 October 2026 · in another language
Ford EcoBoost engines: reliability, problems and should you buy one?Carbuyer · Motoring press · consulted 26 September 2026
Ford's Self-Clogging 1.0-Liter EcoBoost Engine Is Finally Getting RecalledThe Drive · Motoring press · consulted 26 September 2026
The Largest Ford EcoBoost Recalls In 15 Years Of ProductionCarBuzz · Motoring press · consulted 26 September 2026
Stellantis no es el único afectado por la correa de distribución bañada en aceiteAutofácil · Motoring press · consulted 26 September 2026 · in Spanish