✅ Overview 1.5 BlueHDi
The 1.5 BlueHDi engine (Peugeot, Citroën, Opel, DS) is a Euro 6 diesel that replaced the old 1.6 HDi. It is fitted to models such as the Peugeot 208, 308, 3008, Citroën C3, C4, Opel Astra, Grandland X, DS3, DS7 .
- Displacement: 1,499 cc
- Power: from 75 to 130 HP
- Turbo: variable geometry
- SCR system with AdBlue for NOx reduction
⏱️ When problems appear
The most frequent defects emerge:
- after 70,000 – 100,000 km
- with intense urban use and short journeys
- in case of irregular maintenance
- using low-quality diesel fuel
⚠️ Most common problems with the 1.5 BlueHDi
1) Clogged particulate filter (DPF/FAP)
The DPF clogs easily with city use. If it doesn't regenerate, the engine warning light appears and the vehicle goes into emergency mode.
- Prevention: drive on extra-urban routes to promote regeneration
- Avoid turning off the car during the regenerative cycle
Read also: 1.5 BLUEHDI ENGINES: DPF/FAP CLOGGING – CAUSES, SYMPTOMS, SOLUTIONS, AND COSTS
2) AdBlue system problems
Defects in the AdBlue tank, pump, and injector are common, especially in winter. If they malfunction, the engine will not start.
- Use only certified and unexpired AdBlue
- Have regular checks at the workshop
Read also: What is the best AdBlue on the market?
Read also: AdBlue Problems on Peugeots: Here's What to Do on 208, 308, 3008, and 5008
3) Noisy/stretched timing chain
The 1.5 uses a chain instead of a belt. In some cases it stretches prematurely, causing rattling noises and error codes ( P0011 , P0012 ).
- Solution: Preventive chain replacement in case of noise or errors recorded
Read Also: Stellantis Official Recall on the 1.5 BlueHDi
4) Clogged EGR valve and manifolds
The EGR tends to get dirty with short travel, causing power loss and higher fuel consumption.
- Tip: Consider cleaning every 50,000 km
Read Also: Gearbox jitter in fifth gear on 1.5 BlueHDi
🚫 Common mistakes to avoid
- Ignoring the check engine light without diagnosis
- Skip the service: oil should be changed every 15,000 km
- Using low-quality fuels
🛒 Recommended products for the 1.5 BlueHDi
- Engine oil: TOTAL QUARTZ INEO RCP 5W30
- Additives: Diesel Injector Cleaner | DPF Regeneration Additive
-
Diagnostic Tools: OBDII Reader to Monitor
P20E8,P0420,P244ACodes
❓ Frequently Asked Questions (FAQ)
Which cars have the 1.5 BlueHDi engine?
Peugeot 208, 308, 3008, Citroën C3, C4, C5 Aircross, Opel Corsa, Astra, Grandland X, DS3, DS7 and others.
Does the 1.5 BlueHDi have a belt or chain?
It is equipped with a timing chain .
How often should the oil be changed?
Recommended every 15,000 km or once a year, not the 25-30,000 km indicated in the manual.
What happens if you run out of AdBlue?
The starter is blocked until refueling.
Is it a reliable engine?
Yes, if properly maintained. Major problems are predictable and can be solved with regular maintenance.
🏁 Conclusions
The 1.5 BlueHDi is a modern, efficient, and widely used engine. Understanding its common faults and taking preventative measures (correct oil, EGR/DPF cleaning, AdBlue and timing chain checks) can extend its life and keep costs down.
Need specific spare parts or oils? Visit autoricambitritella.it and instantly find the products compatible with your engine.

3 comments
gabriele
Sono Gabriele da Urbino un possessore di un 308 Diesel 1500 hdi del 2020 con 70 mila km, Peugeot mettendola nel sotfwer mi ha detto che la mi catena e buona. Io non sono sodisfatto un consiglio?, cambiarla con quella da 8mm a mie spese per evitare rottura motore. Grazie.
Antonio Salvi
Da quello che vedo in officina, il 1.5 BlueHDi è un motore che può dare soddisfazioni, ma va seguito con costanza. Molti automobilisti pensano che basti rispettare i tagliandi “di base”, invece la realtà è che piccoli accorgimenti fanno la differenza: un olio di qualità cambiato a 15.000 km, un controllo periodico della catena e un occhio attento all’AdBlue evitano spese salate. Il punto debole rimane l’uso cittadino: se l’auto fa solo brevi tragitti, il DPF e l’EGR diventano il tallone d’Achille. Interessante vedere come negli ultimi anni si stiano moltiplicando i casi di serbatoi AdBlue difettosi in inverno: molti clienti arrivano disperati perché l’auto non parte. A mio parere, la prevenzione resta l’arma migliore per godersi questo propulsore senza pensieri.
Francesco Lombardi
Finalmente un articolo che spiega in modo semplice ma tecnico tutti i difetti reali di questo motore. Ho una Peugeot 308 1.5 BlueHDi e mi sono ritrovato con i problemi al DPF e all’AdBlue: grazie ai consigli ho capito come prevenire guasti costosi. Molto utili anche i link agli approfondimenti e ai prodotti consigliati. Davvero un punto di riferimento.