Engine Code

PEUGEOT HNZ-EB2DT engine (2021–Present) – Specs, Problems & Compatibility Database

The Peugeot HNZ (EB2DT) is a 1,499 cc, inline‑three turbocharged diesel engine produced from 2021 onwards. It features an aluminium block and head, double overhead camshafts (DOHC), and a high-pressure common rail fuel injection system. This 12‑valve unit delivers 85 kW (115 PS) and 270 Nm of torque, engineered for responsive urban driving and efficient long-distance cruising.

Fitted to the latest generation of Peugeot 208 and 2008, the HNZ (EB2DT) was designed for compact vehicle agility and low running costs. Emissions compliance is achieved through its selective catalytic reduction (SCR) system with AdBlue, diesel particulate filter (DPF), and exhaust gas recirculation (EGR), meeting the stringent Euro 6d standard upon its introduction.

One documented service concern is potential clogging of the EGR cooler due to soot and condensate accumulation, which can impair engine efficiency and trigger fault codes. This issue is referenced in Peugeot service documentation and necessitates periodic inspection and cleaning to maintain optimal emissions system function.

Peugeot Engine
Compliance Note:

Production years 2021–Present meet Euro 6d standards as per applicable EU regulations at time of manufacture (VCA UK Type Approval #VCA/EMS/8890).

HNZ-EB2DT Technical Specifications

The Peugeot HNZ (EB2DT) is a 1,499 cc inline‑three turbocharged diesel engineered for compact hatchbacks and crossovers (2021-Present). It combines a high-pressure common rail injection system with a variable geometry turbocharger to deliver strong low‑rpm torque and class-leading fuel efficiency. Designed to meet Euro 6d emissions standards, it prioritises environmental compliance without sacrificing drivability.

ParameterValueSource
Displacement1,499 cc
Fuel typeDiesel
ConfigurationInline‑3, DOHC, 12‑valve
AspirationTurbocharged
Bore × stroke75.0 mm × 88.3 mm
Power output85 kW (115 PS) @ 3,500 rpm
Torque270 Nm @ 1,750 rpm
Fuel systemBosch high-pressure common rail (up to 2,000 bar)
Emissions standardEuro 6d
Compression ratio16.5:1
Cooling systemWater‑cooled
TurbochargerSingle variable‑geometry turbo (Garrett)
Timing systemChain‑driven
Oil type0W‑30 synthetic (PSA B71 2312)
Dry weight115 kg
Practical Implications

The compact three-cylinder design offers exceptional fuel economy but requires strict adherence to 20,000 km oil change intervals using PSA B71 2312 (0W-30) oil to protect the turbo and chain. The SCR system demands regular AdBlue top-ups; ignoring warnings will result in a vehicle start-lock. The EGR cooler is prone to internal clogging in predominantly short-trip use; periodic highway driving or professional cleaning is recommended. The variable geometry turbo is robust but benefits from allowing it to cool after hard driving.

Data Verification Notes

Oil Specs: Requires 0W-30 synthetic meeting PSA B71 2312 (Peugeot Owner's Manual). Equivalent to ACEA C2 low-SAPS specifications.

Emissions: Euro 6d certification applies to all production years (VCA Type Approval #VCA/EMS/8890). No market-specific variations for this model.

Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across documented applications (Peugeot Homologation Sheet H-21-208).

Primary Sources

Peugeot Technical Information System: Docs TB-21-05, Service Manual 1499.HNZ

VCA Type Approval Database (VCA/EMS/8890)

EU Regulation (EC) No 715/2007

HNZ-EB2DT Compatible Models

The Peugeot HNZ (EB2DT) was introduced for Peugeot's latest compact 208 and 2008 platforms with transverse mounting. This engine received minor ECU updates for emissions fine-tuning, though core mechanical components remained fully interchangeable. All adaptations are documented in OEM technical bulletins.

Make:
Peugeot
Years:
2021–Present
Models:
208
Variants:
1.5 BlueHDi 115
View Source
Peugeot EPC Ref. 1499.HNZ
Make:
Peugeot
Years:
2021–Present
Models:
2008
Variants:
1.5 BlueHDi 115
View Source
Peugeot Homologation Sheet H-21-208
Identification Guidance

Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the alternator (Peugeot Service Manual 1499.HNZ). The code will read "HNZ" or "EB2DT". Visually, it is identified by its compact size, black plastic rocker cover with "BlueHDi" branding, and the presence of an AdBlue tank filler cap in the fuel filler flap. Critical differentiation from the petrol 1.2 PureTech: The HNZ is a diesel with a high-pressure fuel pump and DPF/SCR systems. Ensure service parts are specific to the HNZ; components for other 1.5 HDi engines are not compatible.

AdBlue System Criticality

Issue:

The SCR system requires AdBlue to reduce NOx emissions. Running out will trigger warnings and eventually prevent the engine from starting.

Evidence:

Peugeot Owner's Manual (2021 208)

Recommendation:

Regularly check and refill the AdBlue tank. Never use water or any other fluid in the AdBlue tank.
EGR Cooler Maintenance

Issue:

The EGR cooler is susceptible to internal clogging from soot and condensate, especially with frequent short trips.

Evidence:

Peugeot Technical Bulletin TB-21-05

Recommendation:

Schedule periodic inspection and cleaning of the EGR cooler as part of preventative maintenance, or ensure regular long-distance driving.

Common Reliability Issues - PEUGEOT HNZ-EB2DT

The HNZ (EB2DT)'s primary reliability risk is EGR cooler clogging, with elevated incidence in vehicles used primarily for short urban journeys. Peugeot service documentation recommends preventative cleaning, while owner data suggests this is a frequent cause of performance-related complaints. Neglecting AdBlue refills will immobilize the vehicle, making adherence to dashboard warnings critical.

EGR cooler clogging
Symptoms: Loss of power, increased fuel consumption, engine management light illuminated with emissions-related codes, potential coolant contamination.
Cause: Accumulation of soot and condensate within the EGR cooler, restricting gas flow and potentially causing internal leaks that mix coolant and exhaust gases.
Fix: Remove and clean or replace the EGR cooler assembly. Flush the cooling system if contamination is suspected. Reset adaptations using diagnostic equipment.
AdBlue system faults or depletion
Symptoms: Dashboard warnings for low AdBlue level, followed by countdown to engine start-lock, reduced engine power (limp mode).
Cause: Depletion of the AdBlue fluid tank without refill, or failure of the AdBlue injector, pump, or NOx sensors, preventing the SCR system from functioning.
Fix: Refill the AdBlue tank with certified fluid. If warnings persist, diagnose and replace the faulty component (injector, pump, sensor) using OEM procedures.
DPF regeneration issues
Symptoms: Increased fuel consumption, loss of power, DPF warning light illuminated, engine may enter limp mode.
Cause: Incomplete or failed regeneration cycles due to insufficient exhaust temperature, often caused by persistent short-trip driving patterns.
Fix: Perform a forced regeneration using diagnostic equipment. If regeneration fails repeatedly, the DPF may need to be removed and cleaned or replaced.
Turbocharger actuator failure
Symptoms: Whistling or hissing noise from engine bay, loss of boost pressure, increased fuel consumption, engine management light may illuminate.
Cause: Wear or sticking of the variable geometry turbo actuator linkage or vacuum diaphragm, preventing the vanes from adjusting correctly under ECU command.
Fix: Replace the turbocharger actuator or the entire turbocharger assembly with an OEM-specified unit. Check associated vacuum lines and solenoids.
Research Basis

Analysis derived from Peugeot technical bulletins (2021-Present) and owner club failure statistics (compiled 2022-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about PEUGEOT HNZ-EB2DT

Find answers to most commonly asked questions about PEUGEOT HNZ-EB2DT.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialPEUGEOT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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Peugeot HNZ (EB2DT) Engine Review 2025 | HP, Torque, Common Issues