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2.3 MZR DISI Turbo vs 0.9 TCe: which engine is more reliable?

According to our risk index, the 0.9 TCe carries less risk than the 2.3 MZR DISI Turbo: 49/100 (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 0.9 TCe has 3 documented serious faults, the main one being «Coolant leak at the thermostat housing».

Risk index

2.3 MZR DISI Turbo

63

High risk · 2 serious faults

Risk index

0.9 TCe

49

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

9 sourcesHow 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 0.9 TCe reliable?

The 0.9 TCe (H4Bt) is a three-cylinder turbo with a good reliability reputation, better than that of its sibling the 1.2 TCe: it does not share the same oil consumption or the same rate of chain problems. Its most-cited weak point is a coolant leak at the thermostat housing, which if ignored can end up damaging the head gasket; chain, turbo and lambda sensor cases appear less often.[4][5]

See the 5 of the 0.9 TCe faults

Side-by-side comparison

Comparison of 2.3 MZR DISI Turbo and 0.9 TCe
2.3 MZR DISI Turbo0.9 TCe
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement2,261 cm³898 cm³
TimingChainChain
Power256–263 hp90 hp
Production2005–2013[1][6]2012–2024[4][5][7][8][9]
Reliability
Risk index (what is it?)63High risk49Moderate risk
Documented faults35
Of high or critical severity23
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Timing chain stretch and VVT actuator failure on the 2.3 DISI Turbo
  2. High severity: Premature turbocharger wear from poor lubrication on the 2.3 DISI Turbo
  3. Medium severity: Oil consumption and sludge in the 2.3 DISI Turbo engine
  1. High severity: Coolant leak at the thermostat housing
  2. Critical severity: Timing chain or tensioner failure
  3. High severity: Turbocharger wear or failure
Most expensive documented repairup to €2,200Premature turbocharger wear from poor lubrication on the 2.3 DISI TurboPublished figure[2]No reliable data
Which versions to buy
BuyRecommended versionsNoneNone
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]
  • 0.9 TCe 90 (H4Bt, 2012-2024)[4][5]
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

2.3 MZR DISI Turbo

0.9 TCe

See the 8 models with the 0.9 TCe

Other comparisons

With the 2.3 MZR DISI Turbo

With the 0.9 TCe

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. Mazda L engineWikipedia (inglés) · Other source · consulted 5 October 2026
  2. Problemas Mazda CX-7Totalrenting · Other source · consulted 5 October 2026 · in Spanish
  3. 2009 Mazda CX-7 engine problemsCarComplaints · Owners' forum · consulted 5 October 2026
  4. Fiabilité des 0.9 TCeFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Moteur H Renault-NissanWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  6. Mazda CX-7Wikipedia (inglés) · Other source · consulted 5 October 2026
  7. Mercedes-Benz M281 engineWikipedia (inglés) · Other source · consulted 27 September 2026
  8. Renault ClioWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  9. Dacia SanderoWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish