The Peugeot 9HN (DV6ETED) is a 1,560 cc, inline‑four turbo‑diesel engine produced between 2009 and 2015. It features a compact cast — iron block, aluminum cylinder head, and high — pressure common — rail direct injection for precise fuel metering. In standard form, it delivered 82 kW (112 PS) and 270 Nm of torque, engineered for urban efficiency and low running costs in supermini applications.
Fitted primarily to the Peugeot 208 and Citroën DS3, the 9HN was designed for driv…
Production years 2009–2015 meet Euro 5 standards exclusively .
The Peugeot 9HN (DV6ETED) is a 1,560 cc inline‑four turbo‑diesel engineered for premium superminis (2009-2015). It combines a high-pressure common-rail system with a variable-geometry turbocharger to deliver strong low-RPM torque and exceptional fuel efficiency. Designed to meet Euro 5 standards, it balances urban agility with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,560 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 88.3 mm | |
Power output | 82 kW (112 PS) | |
Torque | 270 Nm @ 1,750 rpm | |
Fuel system | Bosch CP4 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Variable-geometry turbo (Honeywell) | |
Timing system | Chain-driven | |
Oil type | PSA B71 2290 (SAE 5W‑40) | |
Dry weight | 110 kg |
The Peugeot 9HN (DV6ETED) was used across PSA Group's premium supermini platforms with transverse mounting. This engine received platform-specific adaptations-shared ECU mapping with the Citroën DS3 and unique engine mounts for the Peugeot 208-with no significant revisions during its production run. All adaptations are documented in OEM technical bulletins.
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The 9HN (DV6ETED)'s primary reliability risk is EGR cooler failure, with elevated incidence in high-mileage vehicles. PSA internal reports noted a significant number of cooler failures under warranty, while owner feedback frequently cites coolant contamination as a contributing factor. Extended service intervals and poor maintenance make adherence to OEM maintenance schedules critical.
Analysis derived from PSA technical bulletins (2010-2016) and owner-reported failure data (2013-2023). 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 9HN is a generally robust engine known for its excellent fuel economy. Its main weakness is the EGR cooler, which can fail internally and cause serious damage if not addressed. With timely replacement of the cooler and adherence to service intervals, especially for oil and fuel filter changes, it can be very reliable long-term.
The most frequent issues are EGR cooler failure, DPF regeneration problems, high-pressure fuel pump failure, and intake manifold swirl flap breakage. These are well-documented in PSA service bulletins and owner forums, with the EGR cooler being the most critical concern due to potential engine damage.
This engine was primarily used in the Peugeot 208 (2012-2015) and its platform sibling, the Citroën DS3 (2010-2015), both badged as 1.6 e-HDi 112. It was designed as an efficient and refined powerplant for these premium superminis.
Aftermarket ECU tuning is common on the 9HN-DV6ETED platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Expect exceptional combined fuel economy of around 65-70 mpg (UK) or 4.0-3.5 L/100km in a Peugeot 208. Real-world figures are outstanding for city driving, often exceeding 75 mpg, while highway cruising can yield up to 80 mpg. It's one of the most economical engines of its era.
Yes. Like most modern engines, the 9HN is an interference design. If the timing chain were to fail, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the chain is very robust and rarely fails if maintained.
Peugeot specifies oil meeting the PSA B71 2290 standard, typically a 5W-40 synthetic. Using the correct specification is vital for protecting the high-pressure fuel pump and ensuring proper lubrication of the turbocharger and timing chain.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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