1.6 EcoBoost vs 2.3 MZR DISI Turbo: which engine is more reliable?

According to our risk index, the 1.6 EcoBoost carries less risk than the 2.3 MZR DISI Turbo: 59/100 versus 63/100 (both high risk). The 1.6 EcoBoost has 3 documented serious faults, the main one being «Cracked cylinder head from overheating, with fire risk»; the 2.3 MZR DISI Turbo has 2 documented serious faults, the main one being «Timing chain stretch and VVT actuator failure on the 2.3 DISI Turbo».

Risk index

1.6 EcoBoost

High risk · 3 serious faults

Lower risk

Risk index

2.3 MZR DISI Turbo

High risk · 2 serious faults

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

Reviewed on 5 October 202612 sources How 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 2.3 MZR DISI Turbo reliable?

Mazda's 2.3 DISI Turbo (L3-VDT, 2005-2013) is powerful but demanding: the timing chain, the turbo and oil sludge are its weak points; only buy one with a good oil service history.^[4][5][6]

See the 3 of the 2.3 MZR DISI Turbo faults

Side-by-side comparison

Comparison of 1.6 EcoBoost and 2.3 MZR DISI Turbo
Item	1.6 EcoBoost	2.3 MZR DISI Turbo
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	1,596 cm³	2,261 cm³
Timing	Timing belt (dry)	Chain
Power	120–200 hp	256–263 hp
Production	2010–2019^[1][7]	2005–2013^[4][8]
Reliability
Risk index (what is it?)	59High risk	63High risk
Documented faults	4	3
Of high or critical severity	3	2
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: Cracked cylinder head from overheating, with fire risk High severity: Coolant loss from hoses, water pump or expansion tank High severity: Premature turbocharger failure	Critical severity: Timing chain stretch and VVT actuator failure on the 2.3 DISI Turbo High severity: Premature turbocharger wear from poor lubrication on the 2.3 DISI Turbo Medium severity: Oil consumption and sludge in the 2.3 DISI Turbo engine
Most expensive documented repair	No reliable data	up to €2,200Premature turbocharger wear from poor lubrication on the 2.3 DISI TurboPublished figure^[5]
Which versions to buy
BuyRecommended versions	None	None
With cautionVersions to be cautious about	1.6 EcoBoost 120/150/160/182 (Ford, 2010-2019)^[3][9][10] 1.6 EcoBoost ST 182/197/200 (Ford Fiesta ST/ST200, 2013-2017)^[1][11] Volvo T3/T4 1.6 (B4164T3/B4164T/B4164T2, 2010-2018)^[12]	2.3 MZR DISI Turbo 256-260 hp (L3-VDT, 2005-2009)^[4][5] 2.3 MZR DISI Turbo (L3-VDT, 2010-2013)^[4][5]
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

1.6 EcoBoost

See the 10 models with the 1.6 EcoBoost

2.3 MZR DISI Turbo

Other comparisons

With the 1.6 EcoBoost

With the 2.3 MZR DISI Turbo

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.

Ford EcoBoost engineWikipedia · Other source · consulted 27 September 2026
The Largest Ford EcoBoost Recalls In 15 Years Of ProductionCarBuzz · Motoring press · consulted 27 September 2026
Ford KugaWikipedia · Other source · consulted 27 September 2026
Mazda L engineWikipedia (inglés) · Other source · consulted 5 October 2026
Problemas Mazda CX-7Totalrenting · Other source · consulted 5 October 2026 · in Spanish
2009 Mazda CX-7 engine problemsCarComplaints · Owners' forum · consulted 5 October 2026
Volvo S60Wikipedia · Other source · consulted 27 September 2026
Mazda CX-7Wikipedia (inglés) · Other source · consulted 5 October 2026
Fiabilité et pannes Ford Mondeo 3Fiches-auto.fr · Other source · consulted 27 September 2026 · in French
Fiabilité et pannes Ford S-MaxFiches-auto.fr · Other source · consulted 27 September 2026 · in French
Ford Fiesta STWikipedia · Other source · consulted 27 September 2026
Fiabilité et pannes Volvo S60Fiches-auto.fr · Other source · consulted 27 September 2026 · in French