1.5 BlueHDi vs BMW B47: which engine is more reliable?

According to our risk index, the BMW B47 carries less risk than the 1.5 BlueHDi: 73/100 (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 BMW B47 has 3 documented serious faults, the main one being «EGR cooler leaks with risk of engine fire».

Risk index

1.5 BlueHDi

Very high risk · 4 serious faults

Risk index

BMW B47

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

Reviewed on 26 September 202622 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 BMW B47 reliable?

The BMW B47 (since 2014, successor to the N47) improves the timing chain tensioner, guides and oil supply and greatly reduces the failure rate of its predecessor, but it is not free of problems: the EGR cooler has been the subject of several BMW technical campaigns for engine fire risk since 2018, and the turbo and particulate filter need careful maintenance.^[5][6][7][8]

See the 4 of the BMW B47 faults

Side-by-side comparison

Comparison of 1.5 BlueHDi and BMW B47
Item	1.5 BlueHDi	BMW B47
Technical data
Type	Engine	Engine
Fuel	Diesel	Diesel
Displacement	1,499 cm³	1,995 cm³
Timing	Timing belt (dry)	Chain
Power	75–130 hp	114–228 hp
Production	since 2017^{[9][10][11][12][13][14]}	since 2014^[5]
Reliability
Risk index (what is it?)	77Very high risk	73High risk
Documented faults	5	4
Of high or critical severity	4	3
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: EGR cooler leaks with risk of engine fire High severity: Timing chain wear (improved, but is it really at the front?) High severity: Premature turbo wear from neglected maintenance
Most expensive documented repair	up to €1,500AdBlue tank and pump failurePublished figure^{[4][15][16][17]}	up to €2,000Premature turbo wear from neglected maintenancePublished figure^[7]
Which versions to buy
BuyRecommended versions	1.5 BlueHDi with 8 mm chain (from February 2023)^[2][18][19]	None
With cautionVersions to be cautious about	1.5 BlueHDi 75-130 with 7 mm chain (October 2017 - January 2023)^[20][21][22]	B47 114-150 hp, single turbo (2014-)^[6][8] B47 168-190 hp, single turbo (2014-)^[6][8] B47 202-228 hp, twin-turbo (2015-)^[6][8] B47C20 (MINI Cooper D/SD and Countryman, 2014-)^[5][8]
AvoidVersions to avoid	None	None

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

BMW B47

See the 20 models with the BMW B47

Other comparisons

With the 1.5 BlueHDi

With the BMW B47

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.

1.5 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
BMW B47Wikipedia (inglés) · Other source · consulted 26 September 2026
324.000 diésel de BMW tendrán que pasar por el taller en Europa, por un posible riesgo de incendio en la EGRDiariomotor · Motoring press · published 8 August 2018 · consulted 26 September 2026 · in Spanish
Motor BMW B47: problemas, modelos y qué revisarCarexam · Motoring press · consulted 26 September 2026 · in Spanish
Motor BMW B47 - Reparación EspecializadaDasercars · Technical documentation · consulted 26 September 2026 · in Spanish
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
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
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
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