Skip to content
MotorFiable
en

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

According to our risk index, the 2.0 BlueHDi carries less risk than the 1.6 dCi: 45/100 versus 48/100 (both moderate risk). The 1.6 dCi has 2 documented serious faults, the main one being «Premature turbocharger failure or breakage»; the 2.0 BlueHDi has 2 documented serious faults, the main one being «DPF clogging on short journeys».

Risk index

1.6 dCi

48

Moderate risk · 2 serious faults

Risk index

2.0 BlueHDi

45

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

17 sourcesHow we work

Is the 1.6 dCi reliable?

The 1.6 dCi (R9M) is a diesel with a generally reasonable track record, but with well-documented known faults: the turbo fails relatively often, even at low mileage, the EGR valve clogs, the particulate filter can block up on short journeys, and there are cases of oil leaks from the timing chain cover that go as far as requiring the engine to be removed.[1][2][3][4]

See the 5 of the 1.6 dCi faults

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.[5][6][7][8]

See the 4 of the 2.0 BlueHDi faults

Side-by-side comparison

Comparison of 1.6 dCi and 2.0 BlueHDi
1.6 dCi2.0 BlueHDi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,598 cm³1,997 cm³
TimingChainTiming belt (dry)
Power95–165 hp150–180 hp
Production2011–2020[2][9][10][11][12]2013–2021[13][14][15]
Reliability
Risk index (what is it?)48Moderate risk45Moderate risk
Documented faults54
Of high or critical severity22
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Premature turbocharger failure or breakage
  2. High severity: Oil leak from the timing chain cover
  3. Medium severity: Blocked or failed EGR valve
  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
Most expensive documented repairup to €3,000Premature turbocharger failure or breakagePublished figure[16]up to €1,500AdBlue (SCR) tank and pump failurePublished figure[7][8]
Which versions to buy
BuyRecommended versions
  • 1.6 dCi in Mercedes-Benz (OM 622/OM 626, 115 and 136 hp, 2014-2018)[10]
None
With cautionVersions to be cautious about
  • 1.6 dCi Euro 5 (110 and 130 hp, 2011-2015)[1][2]
  • 1.6 Energy dCi Euro 6 with NOx trap (130 and 160/165 hp, 2015-2019)[1][2][3][4][17]
  • 1.6 dCi for vans (95, 115, 125 and 145 hp, Trafic III/Vivaro B/Talento, 2014-2020)[12]
  • 2.0 BlueHDi 150/163 (DW10FC/DW10FD, 2013-2020)[5][7][8]
  • 2.0 BlueHDi 177/180 (DW10FC/DW10FD, 2013-2021)[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

1.6 dCi

See the 15 models with the 1.6 dCi

2.0 BlueHDi

See the 13 models with the 2.0 BlueHDi

Other comparisons

With the 1.6 dCi

With the 2.0 BlueHDi

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 Renault Espace 5 : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  2. Fiabilité Renault Kadjar : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  3. Fiabilité Nissan Qashqai 2 : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  4. Fiabilité Nissan X-Trail 3 : pannes et avisFiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  5. Fiabilité du 2.0 HDIFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  6. Fiabilité Opel Grandland X (2017-2024), pannes et témoignagesFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  7. AdBlue : problèmes en pagailleFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  8. 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
  9. Nuevo Renault Energy dCi 130 CVCoches.net · Motoring press · consulted 27 September 2026 · in Spanish
  10. Mercedes-Benz OM 622 / OM 626Wikipedia · Other source · consulted 27 September 2026 · in German
  11. Renault EspaceWikipedia · Other source · consulted 27 September 2026 · in Spanish
  12. Renault TraficWikipedia · Other source · consulted 27 September 2026
  13. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
  14. Peugeot 308Wikipedia (inglés) · Other source · consulted 27 September 2026
  15. 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
  16. Las 10 averías del coche más caras en 2026: cuánto cuesta cada reparaciónMotorpoint · Motoring press · published 2026 · consulted 27 September 2026 · in Spanish
  17. Si no hubo fraude, ¿por qué 15.000 Renault Captur y Espace serán revisados por un nivel de emisiones excesivo?Diariomotor · Motoring press · published 19 January 2016 · consulted 27 September 2026 · in Spanish