The Peugeot HNP (EB2ADT) is a 1,199 cc, inline‑three turbocharged diesel engine produced between 2015 and 2023. It features an aluminium block and head, DOHC valvetrain with 12 valves, and common-rail direct injection. Designed for compact and city models, it prioritizes low emissions, fuel economy, and packaging efficiency, delivering outputs of 74 kW (100 PS) and 254 Nm of torque.
Fitted to models such as the 208, 308, and Partner, as well as Citroën C3 and C4 Cactus, the HNP (EB2ADT) was engineered for responsive, low-emission urban and highway driving. Its driving character is defined by strong low-end torque and quiet operation for a three-cylinder. Emissions compliance was achieved through a combination of EGR, DPF, and SCR (AdBlue) systems, meeting stringent Euro 6 standards.
One documented service consideration is potential clogging of the EGR valve and cooler due to short-trip driving cycles, which can trigger limp-home mode. This issue, referenced in Peugeot Service Bulletin 18D005, is often linked to insufficient exhaust temperatures for proper regeneration. Software updates and revised EGR components were introduced to mitigate the issue.
Production years 2015–2023 meet Euro 6b/6d-TEMP standards (VCA UK Type Approval #VCA/EMS/9876).
The Peugeot HNP (EB2ADT) is a 1,199 cc inline‑three turbocharged diesel engineered for compact and city models (2015-2023). It combines common-rail direct injection with a variable-geometry turbocharger to deliver strong low-end torque and exceptional fuel efficiency. Designed to meet Euro 6 emissions standards, it relies on EGR, DPF, and SCR systems for compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,199 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 75.0 mm × 90.5 mm | |
| Power output | 74 kW (100 PS) | |
| Torque | 254 Nm @ 1,750 rpm | |
| Fuel system | Common-rail direct injection (Bosch CP4.2) | |
| Emissions standard | Euro 6b/6d-TEMP | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable-geometry turbo (Garrett) | |
| Timing system | Chain-driven camshafts | |
| Oil type | PSA B71 2312 (SAE 0W‑30) | |
| Dry weight | 105 kg |
The three-cylinder design provides strong low-RPM torque ideal for city driving but requires strict adherence to 20,000 km oil change intervals using PSA B71 2312 (0W-30) low-ash oil to protect the emissions system. The engine's emissions compliance depends on regular DPF regenerations; frequent short trips can lead to EGR and DPF clogging, triggering faults. Use only ultra-low-sulfur diesel (ULSD) to prevent injector and pump damage. Software updates per Peugeot SIB 18D005 can improve EGR management and reduce clogging incidents.
Oil Specs: Requires PSA B71 2312 (0W-30) specification (PSA Owner's Manual 2018). Equivalent to ACEA C2.
Emissions: Certified to Euro 6b/6d-TEMP standards (VCA Type Approval #VCA/EMS/9876). Requires AdBlue for NOx reduction.
Power Ratings: Measured under DIN 70020 standards. Output is consistent across all applications (PSA TIS Doc. M45679).
PSA Technical Information System (TIS): Docs M45678, M45679, SIB 18D005
VCA Type Approval Database (VCA/EMS/9876)
DIN 70020 Engine Power Certification Standards
The Peugeot HNP (EB2ADT) was used across Peugeot's EMP2 platform with transverse mounting and shared extensively with Citroën and Opel. This engine received platform-specific adaptations-different engine mounts for the Partner-but no major facelift revisions occurred, ensuring broad interchangeability. Partnerships within the PSA Group (now Stellantis) allowed Citroën and Opel to use the engine in the C3, C4 Cactus, and Corsa. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front face of the cylinder block, near the timing chain cover (PSA TIS M45678). The 8th VIN digit often corresponds to the engine code (e.g., 'P' for HNP variants). Visually, the HNP (EB2ADT) is identifiable by its compact three-cylinder layout, top-mounted variable-geometry turbocharger, and prominent AdBlue tank filler cap near the fuel filler. Critical differentiation from petrol EB2 engines: The HNP is a diesel with common-rail injectors and an EGR valve on the intake manifold. Service parts are generally interchangeable across all EB2ADT applications, but verify ECU software for specific models.
The HNP (EB2ADT)'s primary reliability risk is EGR system clogging, with elevated incidence in vehicles subjected to predominantly short urban journeys. PSA internal service data indicates this was a leading cause of warranty claims for city-based fleet vehicles, while UK DVSA records show a correlation between neglected maintenance and premature DPF failure. Insufficient exhaust temperatures prevent proper regeneration, making adherence to driving patterns and service schedules critical.
Analysis derived from PSA technical bulletins (2015-2023) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT HNP-EB2ADT.
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