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1.5 BlueHDi vs Skyactiv-D: which engine is more reliable?

According to our risk index, the Skyactiv-D carries less risk than the 1.5 BlueHDi: 55/100 (high risk) versus 77/100 (very high risk). The 1.5 BlueHDi has 4 documented serious faults, the main one being «Wear and breakage of the 7 mm chain between the camshafts»; the Skyactiv-D has 3 documented serious faults, the main one being «Oil dilution with diesel during DPF regenerations».

Risk index

1.5 BlueHDi

77

Very high risk · 4 serious faults

Risk index

Skyactiv-D

55

High risk · 3 serious faults

Lower risk

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

30 sourcesHow we work

Is the 1.5 BlueHDi reliable?

The 1.5 BlueHDi has a serious weak point in engines built from October 2017 to January 2023: the 7 mm chain linking the camshafts can stretch and break. Stellantis has recalled them and covers this fault for 10 years or 240,000 km; engines built up to August 2020 can also suffer AdBlue tank failures, with partial compensation from the manufacturer.[1][2][3][4]

See the 5 of the 1.5 BlueHDi faults

Is the Skyactiv-D reliable?

The Skyactiv-D is a modern and generally reliable diesel, but across its three displacements (1.5, 1.8 and 2.2) it shares oil dilution with diesel fuel during diesel particulate filter regenerations, which means you need to watch the oil level and not stretch oil changes, especially on short journeys; the older 2.2s (2012-2014) also accumulate more turbo and carbon build-up cases.[5][6][7][8]

See the 4 of the Skyactiv-D faults

Side-by-side comparison

Comparison of 1.5 BlueHDi and Skyactiv-D
1.5 BlueHDiSkyactiv-D
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,499 cm³—
TimingTiming belt (dry)Chain
Power75–130 hp105–184 hp
Productionsince 2017[9][10][11][12][13][14]since 2012[5][15][16]
Reliability
Risk index (what is it?)77Very high risk55High risk
Documented faults54
Of high or critical severity43
Worst severityCritical severityCritical severity
Main faults
  1. Critical severity: Wear and breakage of the 7 mm chain between the camshafts
  2. Medium severity: AdBlue tank and pump failure
  3. High severity: Seizure of the high-pressure pump and injection system
  1. High severity: Oil dilution with diesel during DPF regenerations
  2. High severity: Turbo wear or failure from lack of lubrication
  3. Critical severity: Oil pump chain breakage and camshaft wear
Most expensive documented repairup to €1,500AdBlue tank and pump failurePublished figure[4][17][18][19]No reliable data
Which versions to buy
BuyRecommended versions
  • 1.5 BlueHDi with 8 mm chain (from February 2023)[2][20][21]
None
With cautionVersions to be cautious about
  • 1.5 BlueHDi 75-130 with 7 mm chain (October 2017 - January 2023)[22][23][24]
  • 2.2 Skyactiv-D 150/175 (SH-VPTS, 2012-2017)[6][25][26]
  • 2.2 Skyactiv-D 150/175/184 (SH-VPTS, 2017-2021)[7][27]
  • 1.5 Skyactiv-D 105 (S5-DPTS, 2015-2018)[8][28]
  • 1.8 Skyactiv-D 116 (S8-DPTS, 2018-present)[8][29][30]
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

1.5 BlueHDi

See the 34 models with the 1.5 BlueHDi

Skyactiv-D

See the 7 models with the Skyactiv-D

Other comparisons

With the 1.5 BlueHDi

With the Skyactiv-D

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. 1.5 BlueHDi. Stellantis rappelle 930 000 véhicules et étend la couverture à 10 ansL'argus · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in French
  2. Llaman a revisión a miles de Citroën, Opel, Peugeot, DS y Fiat en España con el motor diésel 1.5 BlueHDiMotorpasión · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in Spanish
  3. Réservoir AdBlue Stellantis. Quels changements dans l'indemnisation des clients français ?L'argus · Motoring press · published 21 December 2024 · consulted 26 September 2026 · in French
  4. OCU y BEUC consiguen que Stellantis amplíe la garantía de los depósitos AdBlue defectuososOCU · Consumer association · published 27 December 2024 · consulted 26 September 2026 · in Spanish
  5. SkyActivWikipedia (inglés) · Other source · consulted 27 September 2026
  6. Fiabilité Mazda CX-5 (2012-2017)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  7. Fiabilité Mazda 6 (2012-2022)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  8. Fiabilité Mazda CX-3Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  9. Ford DLD engineWikipedia · Other source · consulted 26 September 2026
  10. Motor DV5Oryx Parts · Technical documentation · published 24 January 2024 · consulted 26 September 2026 · in Spanish
  11. Which Cars Have a Wet Belt? Full UK Engine List (2026)CarOkay · Other source · published 2026 · consulted 26 September 2026
  12. Opel Corsa F: Probleme mit dem Ölbad-Zahnriemen erklärtcarVertical · Other source · published 17 July 2026 · consulted 26 September 2026 · in German
  13. PSA 1.5L BlueHDi: a focus on the DV5 engineSumax · Technical documentation · published July 2025 · consulted 26 September 2026
  14. Timing Belt Kit & Water Pump for Peugeot 1.5 BlueHDi - DV5RLymm Engine Parts · Technical documentation · consulted 26 September 2026
  15. Mazda CX-5Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  16. Mazda3Wikipedia (inglés) · Other source · consulted 27 September 2026
  17. La OCU quiere tomar medidas ante los problemas del sistema de AdBlue de Citroën y Peugeotcoches.com · Motoring press · published 30 May 2023 · consulted 26 September 2026 · in Spanish
  18. Solución fallo AdBlue Peugeot, Citroën y Opel: evita cambiar el depósitoST Automoción · Other source · published 11 December 2025 · consulted 26 September 2026 · in Spanish
  19. Stellantis amplía las compensaciones por los problemas técnicos de sus depósitos AdBlueMinisterio de Derechos Sociales, Consumo y Agenda 2030 · Official body · consulted 26 September 2026 · in Spanish
  20. 1.5 BlueHDi. Stellantis rappelle plusieurs milliers de véhicules pour un problème d'injectionL'argus · Motoring press · published 14 March 2026 · consulted 26 September 2026 · in French
  21. Europa amplía la llamada a revisión por los graves problemas del motor 1.5 BlueHDi de StellantisAutonoción · Motoring press · consulted 26 September 2026 · in Spanish
  22. Cobertura especial para los 1.5 BlueHDi del Grupo Stellantiscoches.net · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in Spanish
  23. Casse chaîne 1.5 BlueHDi. Stellantis étend sa prise en charge à 7 ans ou 180 000 kmL'argus · Motoring press · published 15 January 2025 · consulted 26 September 2026 · in French
  24. Fiabilité moteur Stellantis 1.5 BlueHDi. Une nouvelle huile pour éviter la casseL'argus · Motoring press · published 14 January 2024 · consulted 26 September 2026 · in French
  25. Aviso a todos los propietarios de Mazda CX-5 Dieselkm77 · Motoring press · published 22 May 2013 · consulted 27 September 2026 · in Spanish
  26. Mazda6Wikipedia (alemán) · Other source · consulted 27 September 2026 · in German
  27. Fiabilité Mazda CX-5 II (2017-)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  28. Fiabilité Mazda 3 (2013-2019)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  29. Fiabilité Mazda CX-30Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French
  30. Fiabilité Mazda 3 (2019-)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French