Skip to content
MotorFiable
en

e-Skyactiv D 3.3 vs 2.3 dCi (M9T): which engine is more reliable?

According to our risk index, the e-Skyactiv D 3.3 carries less risk than the 2.3 dCi (M9T): 21/100 (low risk) versus 32/100 (moderate risk). The e-Skyactiv D 3.3 has 2 documented serious faults, the main one being «Stalling and restart failures due to control unit software»; the 2.3 dCi (M9T) has 2 documented serious faults, the main one being «Clogged or broken EGR valve damaging the turbo».

Risk index

e-Skyactiv D 3.3

21

Low risk · 2 serious faults

Lower risk

Risk index

2.3 dCi (M9T)

32

Moderate risk · 2 serious faults

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

10 sourcesHow we work

Is the e-Skyactiv D 3.3 reliable?

The e-Skyactiv D 3.3 is an inline-six diesel with mild-hybrid assistance that Mazda debuted in the CX-60. It is a very recent engine: there is no in-service reliability data, and what is documented are software recalls (stalling, restarting, clutch) fixed at the official dealer.[1][2][3]

See the 2 of the e-Skyactiv D 3.3 faults

Is the 2.3 dCi (M9T) reliable?

The 2.3 dCi M9T is a van diesel with good durability if maintenance is kept up. The weak points cited are the EGR and the turbo, the injectors, and the particulate filter in urban use; the sources are mostly opinion websites.[4][5]

See the 5 of the 2.3 dCi (M9T) faults

Side-by-side comparison

Comparison of e-Skyactiv D 3.3 and 2.3 dCi (M9T)
e-Skyactiv D 3.32.3 dCi (M9T)
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement3,283 cm³2,300 cm³
Timing—Chain
Power254 hp100–180 hp
Productionsince 2022[6][7]since 2010[4][5][8]
Reliability
Risk index (what is it?)21Low risk32Moderate risk
Documented faults25
Of high or critical severity22
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Stalling and restart failures due to control unit software
  2. High severity: Clutch between engine and electric motor that does not re-engage after braking
  1. High severity: Clogged or broken EGR valve damaging the turbo
  2. Medium severity: Faulty injectors on the 2.3 dCi
  3. Medium severity: Diesel particulate filter (DPF) clogged in urban use
Most expensive documented repairNo reliable dataup to €2,300Clogged or broken EGR valve damaging the turboPublished figure[4][9]
Which versions to buy
BuyRecommended versionsNone
  • 2.3 dCi 100-125 hp (M9T)[5]
  • 2.3 dCi 130-145 hp (M9T)[5]
With cautionVersions to be cautious about
  • 3.3 e-Skyactiv D 254 (T3-VPTS, 2022-present)[1][2][3]
  • 2.3 dCi 150-180 hp (M9T, some twin-turbo)[5]
  • 2.3 dCi in the Navara D23 (NP300)[10]
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

e-Skyactiv D 3.3

2.3 dCi (M9T)

Other comparisons

With the e-Skyactiv D 3.3

With the 2.3 dCi (M9T)

Compare other engines

That is the comparison you are viewing: change one of the two engines.

Sources

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

  1. DVSA – base de llamadas a revisión (Mazda CX-60)DVSA (Reino Unido) · Official body · consulted 29 October 2026
  2. Mazda CX-60 (2022 – 2024): engine stall (Safety Gate SR/01913/25)Car-Recalls.eu · Official body · published 23 May 2025 · consulted 29 October 2026
  3. Mazda CX-60: The engine not responding to the accelerator after stopping (KBA 14131R)Car-Recalls.eu · Official body · published 11 August 2025 · consulted 29 October 2026
  4. Renault Master III 2.3 dCi 130: fiabilité, pannes et coûtsCarverif · Other source · consulted 5 October 2026 · in French
  5. Fiabilité Renault Master 2.3 dCiCarverif · Other source · consulted 5 October 2026 · in French
  6. Skyactiv (apartado Skyactiv-D 3.3)Wikipedia (inglés) · Other source · consulted 29 October 2026
  7. Mazda CX-60 3.3 e-Skyactiv D MHEV 254ps AWD HomuraPractical Caravan · Motoring press · consulted 29 October 2026
  8. Renault Master (tercera generación)Wikipedia · Other source · consulted 5 October 2026
  9. Fiabilité du Renault Master RT 2.3 dCi: analyse complèteCarverif · Other source · consulted 5 October 2026 · in French
  10. Nissan Navara wymaga zmian systemu oczyszczania spalinAutokatalog.pl · Motoring press · published 23 August 2023 · consulted 5 October 2026 · in another language