1.5 BlueHDi vs 1.5 dCi: which engine is more reliable?

According to our risk index, the 1.5 dCi carries less risk than the 1.5 BlueHDi: 63/100 (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 1.5 dCi has 4 documented serious faults, the main one being «Wear and seizure of the big-end bearings».

Risk index

1.5 BlueHDi

Very high risk · 4 serious faults

Risk index

1.5 dCi

High risk · 4 serious faults

Lower risk

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

Reviewed on 26 September 202637 sources How 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 1.5 dCi reliable?

The post-2010 1.5 dCi engines, especially the 90 hp, have a good record. The Euro 3 and Euro 4 units (2001-2010) carry serious faults: big-end bearings that can wreck the engine, a Delphi pump that fills the injection system with metal filings and, in some 105/110 hp versions, a timing belt and dual-mass flywheel that fail early.^[5][6][7][8]

See the 8 of the 1.5 dCi faults

Side-by-side comparison

Comparison of 1.5 BlueHDi and 1.5 dCi
Item	1.5 BlueHDi	1.5 dCi
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,499 cm³	1,461 cm³
Timing	Timing belt (dry)	Timing belt (dry)
Power	75–130 hp	55–116 hp
Production	since 2017^{[9][10][11][12][13][14]}	since 2001^{[5][15][16][17][18][19][20]}
Reliability
Risk index (what is it?)	77Very high risk	63High risk
Documented faults	5	8
Of high or critical severity	4	4
Worst severity	Critical severity	Critical severity
Main faults	Critical severity: Wear and breakage of the 7 mm chain between the camshafts Medium severity: AdBlue tank and pump failure High severity: Seizure of the high-pressure pump and injection system	Critical severity: Wear and seizure of the big-end bearings Critical severity: Premature timing belt failure High severity: Delphi high-pressure pump that sheds filings and damages the injection
Most expensive documented repair	up to €1,500AdBlue tank and pump failurePublished figure^{[4][21][22][23]}	up to €2,000Premature dual-mass flywheel failure and clutch problemsPublished figure^[24][25]
Which versions to buy
BuyRecommended versions	1.5 BlueHDi with 8 mm chain (from February 2023)^[2][26][27]	1.5 dCi Energy Euro 6 with NOx trap (90 and 110 hp, 2015-2018)^[28][29][30] 1.5 dCi in Mercedes-Benz and Infiniti (OM 607 / OM 608, 2012-2020)^[20][31]
With cautionVersions to be cautious about	1.5 BlueHDi 75-130 with 7 mm chain (October 2017 - January 2023)^[32][33][34]	1.5 dCi Euro 4 (68/70, 85/86 and 105/106 hp, 2005-2010)^{[5][6][7][17]} 1.5 dCi Euro 5 with particulate filter (75, 90, 95 and 110 hp, 2010-2015)^[5][7][35] 1.5 Blue dCi with SCR and AdBlue (85, 95, 100 and 115 hp, from 2018)^[29][36][37]
AvoidVersions to avoid	None	1.5 dCi Euro 3 (65, 80/82 and 100 hp, 2001-2005)^[5][8]

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 35 models with the 1.5 BlueHDi

1.5 dCi

See the 47 models with the 1.5 dCi

Other comparisons

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With the 1.5 dCi

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Sources

Every fact on this page links to its source. If you find an error, let us know.

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
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
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
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
Fiabilité du 1.5 dCiFiches-auto.fr · Motoring press · published 19 April 2024 · consulted 26 September 2026 · in French
Fiabilité Renault Clio 3 : que vaut le modèle en occasion ?Caradisiac · Motoring press · published 26 November 2012 · consulted 26 September 2026 · in French
Maxi-fiche fiabilité : que vaut le Renault Scénic 3 en occasion ?Caradisiac · Motoring press · published 2 February 2016 · consulted 26 September 2026 · in French
Maxi-fiche occasion : que vaut le Renault Scénic 2 en seconde main ?Caradisiac · Motoring press · published 29 October 2014 · consulted 26 September 2026 · in French
Ford DLD engineWikipedia · Other source · consulted 26 September 2026
Motor DV5Oryx Parts · Technical documentation · published 24 January 2024 · consulted 26 September 2026 · in Spanish
Which Cars Have a Wet Belt? Full UK Engine List (2026)CarOkay · Other source · published 2026 · consulted 26 September 2026
Opel Corsa F: Probleme mit dem Ölbad-Zahnriemen erklärtcarVertical · Other source · published 17 July 2026 · consulted 26 September 2026 · in German
PSA 1.5L BlueHDi: a focus on the DV5 engineSumax · Technical documentation · published July 2025 · consulted 26 September 2026
Timing Belt Kit & Water Pump for Peugeot 1.5 BlueHDi - DV5RLymm Engine Parts · Technical documentation · consulted 26 September 2026
Renault K-Type engineWikipedia · Other source · consulted 26 September 2026
Moteur K RenaultWikipédia · Other source · consulted 26 September 2026 · in French
Fiabilité Renault Mégane 3 : que vaut le modèle en occasion ?Caradisiac · Motoring press · published 25 November 2015 · consulted 26 September 2026 · in French
Mercedes abandonne le 1.5 dCi Renault pour un moteur maison, qui émet plus de CO2 !Caradisiac · Motoring press · published 26 October 2020 · consulted 26 September 2026 · in French
Nissan : le Qashqai reçoit un nouveau moteur dCiCaradisiac · Motoring press · published 14 September 2018 · consulted 26 September 2026 · in French
Estos son los motores Renault que usa MercedesDiariomotor · Motoring press · published 22 December 2019 · consulted 26 September 2026 · in Spanish
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
Solución fallo AdBlue Peugeot, Citroën y Opel: evita cambiar el depósitoST Automoción · Other source · published 11 December 2025 · consulted 26 September 2026 · in Spanish
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
Volante bimasa, averías y precio de sustituciónDiariomotor · Motoring press · published 3 November 2020 · consulted 26 September 2026 · in Spanish
Diesels : volant moteur défectueuxFiches-auto.fr · Owners' forum · published 17 October 2025 · consulted 26 September 2026 · in French
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
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
Fiabilité du Renault Kadjar : la maxi-fiche occasion de CaradisiacCaradisiac · Motoring press · published 19 November 2020 · consulted 26 September 2026 · in French
Fiabilité du Dacia Duster 2 : la maxi-fiche occasion de CaradisiacCaradisiac · Motoring press · published 27 April 2022 · consulted 26 September 2026 · in French
Fiabilité du Renault Captur : la maxi-fiche occasion de CaradisiacCaradisiac · Motoring press · published 2 March 2018 · consulted 26 September 2026 · in French
Fiabilité des 180d / 180 CDI MercedesFiches-auto.fr · Motoring press · consulted 26 September 2026 · in French
Cobertura especial para los 1.5 BlueHDi del Grupo Stellantiscoches.net · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in Spanish
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
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
Fiabilité du Nissan Qashqai 2 : la maxi-fiche occasion de CaradisiacCaradisiac · Motoring press · published 22 December 2017 · consulted 26 September 2026 · in French
Fiabilité du 1.5 Blue dCiFiches-auto.fr · Motoring press · published 18 May 2022 · consulted 26 September 2026 · in French
Maxi-fiche fiabilité - Renault Clio 5 : loin d'être irréprochableCaradisiac · Motoring press · published 19 April 2024 · consulted 26 September 2026 · in French