2.3 MZR DISI Turbo vs 1.2 16v: which engine is more reliable?

According to our risk index, the 1.2 16v carries less risk than the 2.3 MZR DISI Turbo: 36/100 (moderate risk) versus 63/100 (high 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»; the 1.2 16v has 1 documented serious fault, the main one being «Damaged head gasket and coolant loss».

Risk index

2.3 MZR DISI Turbo

High risk · 2 serious faults

Risk index

1.2 16v

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

Reviewed on 5 October 202616 sources How we work

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.^[1][2][3]

See the 3 of the 2.3 MZR DISI Turbo faults

Is the 1.2 16v reliable?

The 1.2 16v (D4F) and its 8-valve predecessor, the D7F, are simple naturally aspirated engines, used for over two decades as the entry-level option in Renault and Dacia cars, with a reputation for reliability: the reliability pages consulted document no catastrophic failures and no oil consumption. The most-cited problems are ignition coils and sensors and, on higher-mileage cars, the head gasket.^[4][5][6][7]

See the 5 of the 1.2 16v faults

Side-by-side comparison

Comparison of 2.3 MZR DISI Turbo and 1.2 16v
Item	2.3 MZR DISI Turbo	1.2 16v
Technical data
Type	Engine	Engine
Fuel	Petrol	Petrol
Displacement	2,261 cm³	1,149 cm³
Timing	Chain	Timing belt (dry)
Power	256–263 hp	60–76 hp
Production	2005–2013^[1][8]	2001–2020^{[9][10][11][12]}
Reliability
Risk index (what is it?)	63High risk	36Moderate risk
Documented faults	3	5
Of high or critical severity	2	1
Worst severity	Critical severity	High severity
Main faults	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	High severity: Damaged head gasket and coolant loss Medium severity: Ignition coil failure (misfires, engine warning light) Medium severity: Probe and sensor faults (crankshaft position, throttle body)
Most expensive documented repair	up to €2,200Premature turbocharger wear from poor lubrication on the 2.3 DISI TurboPublished figure^[2]	No reliable data
Which versions to buy
BuyRecommended versions	None	1.2 16v 75/76 (D4F, 2001-2020)^{[4][5][6][7][13][14][15][16]} 1.2 16v 60 (D4F 708, Twingo I, 2004-2007)^[11]
With cautionVersions to be cautious about	2.3 MZR DISI Turbo 256-260 hp (L3-VDT, 2005-2009)^[1][2] 2.3 MZR DISI Turbo (L3-VDT, 2010-2013)^[1][2]	None
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

2.3 MZR DISI Turbo

1.2 16v

See the 11 models with the 1.2 16v

Other comparisons

With the 2.3 MZR DISI Turbo

With the 1.2 16v

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Sources

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

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
Fiabilité et pannes de la Renault Clio 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes de la Renault Clio 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Sandero 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Maxi-fiche fiabilité : la Renault Twingo 2Caradisiac · Motoring press · consulted 27 September 2026 · in French
Mazda CX-7Wikipedia (inglés) · Other source · consulted 5 October 2026
Moteur D RenaultWikipédia (francés) · Other source · consulted 27 September 2026 · in French
Anexo:Motores de RenaultWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
Renault TwingoWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Renault Clio IIWikipedia (alemán) · Other source · consulted 27 September 2026 · in German
Fiabilité et pannes de la Renault KangooFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia LoganFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia SanderoFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
Fiabilité et pannes du Dacia Logan 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French