Skip to content
MotorFiable
en

2.0 BlueHDi vs 1.9 dCi: which engine is more reliable?

According to our risk index, the 2.0 BlueHDi carries less risk than the 1.9 dCi: 45/100 (moderate risk) versus 67/100 (high risk). The 2.0 BlueHDi has 2 documented serious faults, the main one being «DPF clogging on short journeys»; the 1.9 dCi has 3 documented serious faults, the main one being «Seizure and wear of the big-end bearings».

Risk index

2.0 BlueHDi

45

Moderate risk · 2 serious faults

Lower risk

Risk index

1.9 dCi

67

High risk · 3 serious faults

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

15 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 1.9 dCi reliable?

The 1.9 dCi (F9Q) was Renault's first common-rail diesel (1999) and powered a large part of its range, and those of Nissan and Volvo, for more than a decade. It has well-documented weak points: on versions of up to 120 hp built before 2005, the big-end bearings can seize and the turbo tends to degrade around 150,000 km; the injectors, the EGR valve and, on the 120 hp versions, the dual-mass flywheel also fail fairly often.[5][6][7][8][9]

See the 5 of the 1.9 dCi faults

Side-by-side comparison

Comparison of 2.0 BlueHDi and 1.9 dCi
2.0 BlueHDi1.9 dCi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,997 cm³1,870 cm³
TimingTiming belt (dry)Timing belt (dry)
Power150–180 hp80–130 hp
Production2013–2021[10][11][12]1999–2011[13][14][15]
Reliability
Risk index (what is it?)45Moderate risk67High risk
Documented faults45
Of high or critical severity23
Worst severityHigh severityCritical 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. Critical severity: Seizure and wear of the big-end bearings
  2. High severity: Premature turbocharger wear
  3. High severity: Failures of the Delphi direct-injection injectors
Most expensive documented repairup to €1,500AdBlue (SCR) tank and pump failurePublished figure[3][4]No reliable data
Which versions to buy
BuyRecommended versionsNoneNone
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]
  • 1.9 dCi 95-120 (F9Q, first generation, 1999-2005)[7]
  • 1.9 dCi 125-130 (F9Q, Energy dCi, 2005-2011)[7]
  • 1.9 dCi 80-101 (F9Q, vans and commercial vehicles, 1999-2007)[5][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

2.0 BlueHDi

See the 13 models with the 2.0 BlueHDi

1.9 dCi

See the 13 models with the 1.9 dCi

Other comparisons

With the 2.0 BlueHDi

With the 1.9 dCi

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 Mégane II (2002 – 2009): Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
  6. Renault Scénic II (2003 – 2009) – Typische Probleme & KrankheitenGebrauchtwagenberater.de · Motoring press · consulted 27 September 2026 · in German
  7. Achat d'occasion : faut-il éviter le moteur 1.9 dCi F9Q chez Renault ?Planète Renault · Motoring press · published 24 January 2024 · consulted 27 September 2026 · in French
  8. Diesels : volant moteur défectueuxFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  9. Vanne EGR : problèmes et pannesFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  10. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
  11. Peugeot 308Wikipedia (inglés) · Other source · consulted 27 September 2026
  12. 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
  13. Renault F-Type engineWikipedia · Other source · consulted 27 September 2026
  14. Moteur F RenaultWikipédia · Other source · consulted 27 September 2026 · in French
  15. Renault Espace IVWikipedia · Other source · consulted 27 September 2026 · in German