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1.6 HDi vs 2.0 HDi: which engine is more reliable?

According to our risk index, the 2.0 HDi carries less risk than the 1.6 HDi: 55/100 versus 71/100 (both high risk). The 1.6 HDi has 2 documented serious faults, the main one being «Turbo failure through lack of lubrication (carbon deposits and union filter)»; the 2.0 HDi has 2 documented serious faults, the main one being «Variable-geometry turbo failures (actuator, sensors and clogging)».

Risk index

1.6 HDi

71

High risk · 2 serious faults

Risk index

2.0 HDi

55

High 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

31 sourcesHow we work

Is the 1.6 HDi reliable?

It is an efficient diesel, but its 16-valve versions (2004-2011) have a serious weak point: the turbo is starved of lubrication by carbon deposits from the oil, often made worse by leaks at the injector washers. The 8V engines (from 2010) improved, although you need to watch the 2010-2011 belt and the injectors, and on the BlueHDi the AdBlue tank.[1][2][3][4][5][6][7][8][9]

See the 7 of the 1.6 HDi faults

Is the 2.0 HDi reliable?

It is a robust diesel in its simplest 90 hp version, but the 136 to 140 hp generation with a DPF (2004-2011) concentrates the engine's problems: turbo, DPF, EGR and, above all, a dual-mass flywheel that fails very often. The BlueHDi engines (from 2013) are mechanically more reliable, but add an AdBlue tank that can crystallise; the OCU (Spanish consumer organisation) has reported this fault in Spain and Stellantis covers it with a compensation programme.[10][11][12][13]

See the 5 of the 2.0 HDi faults

Side-by-side comparison

Comparison of 1.6 HDi and 2.0 HDi
1.6 HDi2.0 HDi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,560 cm³1,997 cm³
TimingTiming belt (dry)Timing belt (dry)
Power75–120 hp90–180 hp
Production2004–2019[4][6][14][15][16][17][18]1999–2021[10][19][20][21][22]
Reliability
Risk index (what is it?)71High risk55High risk
Documented faults75
Of high or critical severity22
Worst severityHigh severityHigh severity
Main faults
  1. High severity: Turbo failure through lack of lubrication (carbon deposits and union filter)
  2. High severity: Timing belt failure and premature wear
  3. Medium severity: AdBlue tank and pump fault (1.6 BlueHDi)
  1. High severity: Variable-geometry turbo failures (actuator, sensors and clogging)
  2. High severity: DPF clogging on additive-type systems (Eolys/cerine)
  3. Medium severity: Premature dual-mass flywheel wear (from 107/110 hp)
Most expensive documented repairup to €1,500Turbo failure through lack of lubrication (carbon deposits and union filter)Estimate[1][23][24][25][26][27][28]up to €1,200AdBlue tank crystallisation and failures (BlueHDi)Published figure[12][13][29]
Which versions to buy
BuyRecommended versions
  • 1.6 HDi / e-HDi 92/95 8V (DV6D, 2009-2016)[30][31]
  • 2.0 HDi 90 (DW10TD, 1999-2005)[10]
  • 2.0 HDi 150/163 DPF (DW10C / DW10CTED4, 2007-2013)[10]
With cautionVersions to be cautious about
  • 1.6 HDi 75/90 16V (DV6BTED4 / DV6ATED4, 2004-2011)[2][3][30]
  • 1.6 HDi 110 16V DPF (DV6TED4, 2004-2011)[2][6][30]
  • 1.6 HDi / e-HDi 112/115 8V (DV6C, 2010-2015)[5][7]
  • 1.6 BlueHDi 75/100/120 (DV6FE / DV6FD / DV6FC, 2013-2019)[8][11][17]
  • 2.0 HDi 107/110 (DW10ATED / DW10ATED4, 2000-2008)[10]
  • 2.0 HDi 136/138/140 DPF (DW10BTED4, 2004-2011)[10]
  • 2.0 BlueHDi 120/150/163/180 (DW10FE / DW10FD / DW10FC, 2013-2021)[10][11][12][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

1.6 HDi

See the 48 models with the 1.6 HDi

2.0 HDi

See the 19 models with the 2.0 HDi

Other comparisons

With the 1.6 HDi

With the 2.0 HDi

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. Häufige Schäden und die professionelle Reparatur (Turbolader PSA 1,6 HDi)Krafthand · Motoring press · published 6 June 2013 · consulted 26 September 2026 · in German
  2. Boletín de servicio: sustitución del turbo en motores DV6 (versión reducida de la Información de servicio nº 77)Turbotec · Technical documentation · consulted 26 September 2026 · in Spanish
  3. Diesel : la liste des pannes récurrentes des moteurs HDi, dCi, TDI... (1.6 HDi)L'argus · Motoring press · published 28 October 2014 · consulted 26 September 2026 · in French
  4. Fiabilité Citroën Peugeot. Le bloc 1.6 HDi 8 soupapes est-il fiable ?L'argus · Motoring press · published 23 March 2015 · consulted 26 September 2026 · in French
  5. Fiabilité Citroën Peugeot. Le bloc 1.6 HDi 8 soupapes est-il fiable ? (1.6 HDi 112/115)L'argus · Motoring press · published 23 March 2015 · consulted 26 September 2026 · in French
  6. Essai, avis et fiabilité des 1.6 HDI 110 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French
  7. Essai, avis et fiabilité des 1.6 HDI 112 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French
  8. OCU y BEUC consiguen que Stellantis amplíe la garantía de los coches con AdBlueOCU · Consumer association · published 27 December 2024 · consulted 26 September 2026 · in Spanish
  9. El Grupo PSA lanza la gama de motores Blue HDikm77 · Motoring press · published 16 September 2013 · consulted 26 September 2026 · in Spanish
  10. Fiabilité du 2.0 HDIFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  11. AdBlue : problèmes en pagailleFiches-Auto · Motoring press · consulted 27 September 2026 · in French
  12. Más problemas para Stellantis: ahora tendrá que indemnizar también a los afectados por el AdBlueAutopista · Motoring press · published 30 December 2024 · consulted 27 September 2026 · in Spanish
  13. El fallo que afecta a cientos de coches y que ahora la OCU denuncia para reclamar indemnizacionesAutopista · Motoring press · published 29 May 2023 · consulted 27 September 2026 · in Spanish
  14. Prueba de consumo (202): Peugeot Partner Outdoor 1.6-BlueHDi 120 CVkm77 · Motoring press · published 24 December 2015 · consulted 26 September 2026 · in Spanish
  15. Motor PSA DVWikipedia (es) · Other source · consulted 26 September 2026 · in Spanish
  16. Peugeot DV6TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 26 September 2026
  17. Fiabilité 1.6 BlueHDIFiches-Auto.fr · Motoring press · published 9 December 2021 · consulted 26 September 2026 · in French
  18. Motor Peugeot DV6FDTED: especificaciones y aplicacionesMyMotorList · Technical documentation · consulted 26 September 2026 · in Spanish
  19. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 27 September 2026
  20. Peugeot 307Wikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  21. Peugeot 3008Wikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  22. Citroën C4 PicassoWikipedia (español) · Other source · consulted 27 September 2026 · in Spanish
  23. Turbo intercambio Garrett 753420 motor 1.6HDi 1.6TDCI 1.6DFG Automoción · Technical documentation · consulted 26 September 2026 · in Spanish
  24. Turbo Garrett 753420 (GT1544V) para 1.6 HDI 110 CVAML Turbos · Technical documentation · consulted 26 September 2026 · in Spanish
  25. Tubo de engrase PSA 1.6 HDI 110 CV + filtro (OP10049COMP)Electromotor Lantejuela · Technical documentation · consulted 26 September 2026 · in Spanish
  26. ¿Cuál es el precio de la mano de obra en los talleres de las 10 marcas más vendidas en España?km77 · Motoring press · published 30 December 2024 · consulted 26 September 2026 · in Spanish
  27. La doble tarifa de la mano de obra en los talleres españoles: lo que dice su tablón vs. lo que realmente ingresanInfotaller · Motoring press · published June 2026 · consulted 26 September 2026 · in Spanish
  28. ¿Estás cobrando lo justo en tu taller? Así está la mano de obra por hora en 2025Infotaller · Motoring press · published 9 September 2025 · consulted 26 September 2026 · in Spanish
  29. Aditivo AdBlue: qué debes usar para evitar una reparación de 2.000 euros en tu coche diéselAutopista · Motoring press · published 1 April 2026 · consulted 27 September 2026 · in Spanish
  30. Fiabilité 1.6 HDIFiches-Auto.fr · Motoring press · published 22 April 2024 · consulted 26 September 2026 · in French
  31. Essai, avis et fiabilité des 1.6 HDI 92 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French