Skip to content
MotorFiable

2.0 BlueHDi vs 2.3 dCi (M9T): which engine is more reliable?

According to our risk index, the 2.3 dCi (M9T) carries less risk than the 2.0 BlueHDi: 32/100 versus 45/100 (both moderate risk). The 2.0 BlueHDi has 2 documented serious faults, the main one being «DPF clogging on short journeys»; the 2.3 dCi (M9T) has 2 documented serious faults, the main one being «Clogged or broken EGR valve damaging the turbo».

Risk index

2.0 BlueHDi

45

Moderate risk · 2 serious faults

Risk index

2.3 dCi (M9T)

32

Moderate risk · 2 serious faults

Lower risk

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

13 sourcesHow we work

Is the 2.0 BlueHDi reliable?

The 2.0 BlueHDi is mechanically one of the sturdiest PSA/Stellantis diesels: in the samples available for its 150 to 180 hp versions, the turbo, DPF, EGR and injectors fail noticeably less often than on earlier generations of the same engine from before 2013. Its documented weak point is the AdBlue tank, a fault so widespread that Stellantis compensates affected owners without a definitive fix.[1][2][3][4]

See the 4 of the 2.0 BlueHDi 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.[5][6]

See the 5 of the 2.3 dCi (M9T) faults

Side-by-side comparison

Comparison of 2.0 BlueHDi and 2.3 dCi (M9T)
2.0 BlueHDi2.3 dCi (M9T)
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,997 cm³2,300 cm³
TimingTiming belt (dry)Chain
Power150–180 hp100–180 hp
Production2013–2021[7][8][9]since 2010[5][6][10]
Reliability
Risk index (what is it?)45Moderate risk32Moderate risk
Documented faults45
Of high or critical severity22
Worst severityHigh severityHigh severity
Main faults
  1. Medium severity: AdBlue (SCR) tank and pump failure
  2. High severity: DPF clogging on short journeys
  3. High severity: Injector and high-pressure pump wear
  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 repairup to €1,500AdBlue (SCR) tank and pump failurePublished figure[3][4]up to €2,300Clogged or broken EGR valve damaging the turboPublished figure[5][11]
Which versions to buy
BuyRecommended versionsNone
  • 2.3 dCi 100-125 hp (M9T)[6]
  • 2.3 dCi 130-145 hp (M9T)[6]
With cautionVersions to be cautious about
  • 2.0 BlueHDi 150/163 (DW10FC/DW10FD, 2013-2020)[1][3][4]
  • 2.0 BlueHDi 177/180 (DW10FC/DW10FD, 2013-2021)[1][2]
  • 2.3 dCi 150-180 hp (M9T, some twin-turbo)[6]
  • 2.3 dCi in the Navara D23 (NP300)[12]
  • 2.3 OM 699 in the Mercedes X-Class, 163 and 190 hp (2017-2020)[6][13]
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

2.0 BlueHDi

See the 13 models with the 2.0 BlueHDi

2.3 dCi (M9T)

Other comparisons

With the 2.0 BlueHDi

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. Fiabilité du 2.0 HDIFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  2. Fiabilité Opel Grandland X (2017-2024), pannes et témoignagesFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  3. AdBlue : problèmes en pagailleFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  4. Stellantis amplía las compensaciones por los problemas técnicos de sus depósitos AdBlueMinisterio de Derechos Sociales, Consumo y Agenda 2030 · Official body · consulted 27 September 2026 · in Spanish
  5. Renault Master III 2.3 dCi 130: fiabilité, pannes et coûtsCarverif · Other source · consulted 5 October 2026 · in French
  6. Fiabilité Renault Master 2.3 dCiCarverif · Other source · consulted 5 October 2026 · in French
  7. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
  8. Peugeot 308Wikipedia (inglés) · Other source · consulted 27 September 2026
  9. Peugeot 308 5p GT 2.0 BlueHDi 180 S&S EAT8 (2017-2019) | Precio y ficha técnicakm77 · Motoring press · consulted 27 September 2026 · in Spanish
  10. Renault Master (tercera generación)Wikipedia · Other source · consulted 5 October 2026
  11. Fiabilité du Renault Master RT 2.3 dCi: analyse complèteCarverif · Other source · consulted 5 October 2026 · in French
  12. Nissan Navara wymaga zmian systemu oczyszczania spalinAutokatalog.pl · Motoring press · published 23 August 2023 · consulted 5 October 2026 · in another language
  13. Mercedes-Benz X-Klasse: motores OM 699 y OM 642, producción en BarcelonaWikipedia (de) · Other source · consulted 2 November 2026 · in German