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…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The HNP (EB2ADT) offers good fuel economy and strong torque for its size, but its reliability is heavily dependent on usage patterns. Vehicles used for long highway journeys tend to be very reliable, while those used only for short urban trips are prone to EGR and DPF issues. Strict adherence to the 20,000 km service interval with the correct oil is essential for longevity.
The most frequent issues are EGR valve/cooler clogging (causing limp mode), DPF regeneration failures (due to short trips), AdBlue system faults (crystallization or sensor failure), and high-pressure fuel pump wear. These are well-documented in PSA service bulletins and are often linked to driving style and maintenance neglect.
The HNP (EB2ADT) powered Peugeot models including the 208 II, 308 III, and Partner III from 2015 to 2023. It was also widely used in Citroën C3 III, C4 Cactus, and Opel Corsa F, making it a key diesel engine for Stellantis' small car platforms in the Euro 6 era.
Tuning potential is very limited. The engine is already highly optimized for emissions and economy. A remap might yield a small power increase (5-10 PS) but significantly increases the risk of DPF and EGR system failure, and may invalidate the vehicle's type approval. It is generally not recommended.
Excellent for a modern diesel. In a Peugeot 208 1.2 BlueHDi, expect around 4.1 L/100km (69 mpg UK) on the highway and 5.0 L/100km (56 mpg UK) in the city. Real-world combined figures typically range from 60-65 mpg UK, making it one of the most economical diesels available.
Yes. The HNP (EB2ADT) is an interference engine. If the timing chain fails or jumps, the pistons will collide with the open valves, causing catastrophic internal engine damage. This makes addressing any timing chain noise or tensioner issues immediately absolutely critical.
Peugeot mandates the use of PSA B71 2312 specification oil, typically a 0W-30 synthetic. This low-SAPS (low ash) oil is crucial for protecting the DPF and meeting emissions standards. Using the wrong oil can lead to rapid DPF clogging and system failure. Change intervals should not exceed 20,000 km or 1 year.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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