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2.3 MZR DISI Turbo vs 1.0 TCe / SCe: which engine is more reliable?

According to our risk index, the 1.0 TCe / SCe carries less risk than the 2.3 MZR DISI Turbo: 41/100 (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 1.0 TCe / SCe has 1 documented serious fault, the main one being «LPG (ECO-G) system faults and tank recall».

Risk index

2.3 MZR DISI Turbo

63

High risk · 2 serious faults

Risk index

1.0 TCe / SCe

41

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

11 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 1.0 TCe / SCe reliable?

The 1.0 TCe/SCe (H4D/H4Dt) is a simply designed three-cylinder with reasonable reliability. Its most-cited fault is a noise or vibration from the turbo wastegate; the ECO-G (LPG) version adds its own gas-management faults and a 2023 recall over a risk of leaks and fire from the tank. An isolated case of a failed high-pressure pump is also documented, and no oil consumption pattern.[4][5][6]

See the 4 of the 1.0 TCe / SCe faults

Side-by-side comparison

Comparison of 2.3 MZR DISI Turbo and 1.0 TCe / SCe
2.3 MZR DISI Turbo1.0 TCe / SCe
Technical data
TypeEngineEngine
FuelPetrolPetrol
Displacement2,261 cm³999 cm³
TimingChainChain
Power256–263 hp65–117 hp
Production2005–2013[1][7]since 2019[8][9]
Reliability
Risk index (what is it?)63High risk41Moderate risk
Documented faults34
Of high or critical severity21
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. Critical severity: LPG (ECO-G) system faults and tank recall
  2. Medium severity: Metallic noise or vibration from the turbo wastegate
  3. Medium severity: Failed high-pressure fuel pump (isolated case)
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 versionsNone
  • 1.0 SCe 65/75 (H4D, 2019-present)[4][10]
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]
  • 1.0 TCe 90/100 (H4Dt, 2019-present)[4][10]
  • 1.0 TCe 110 (H4Dt, 2021-present)[11]
  • 1.0 ECO-G 100 (H4Dt + LPG, 2020-present)[4][5][11]
  • 1.0 DIG-T / IG-T 100-117 (HR10DDT, Nissan, 2017-present)[6]
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

1.0 TCe / SCe

See the 7 models with the 1.0 TCe / SCe

Other comparisons

With the 2.3 MZR DISI Turbo

With the 1.0 TCe / SCe

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 et pannes du Dacia Sandero 3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Dacia et Renault – nouveau rappel : fuite du réservoir GPL, risque d'incendie !Motorsactu · Motoring press · published 12 November 2023 · consulted 27 September 2026 · in French
  6. Fiabilité et pannes du Nissan Juke 2Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Mazda CX-7Wikipedia (inglés) · Other source · consulted 5 October 2026
  8. Moteur H Renault-NissanWikipedia (francés) · Other source · consulted 27 September 2026 · in French
  9. Nissan JukeWikipedia (inglés) · Other source · consulted 27 September 2026
  10. Fiabilité et pannes de la Renault Clio 5Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  11. Fiabilité et pannes du Dacia JoggerFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French