The Peugeot EHZ (DW10FDCU) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. It features a DOHC 16‑valve architecture, common rail direct injection, and a variable geometry turbocharger (VGT). In standard form, it delivered 120 kW (163 PS) and 340 Nm of torque, offering a refined blend of performance and efficiency for its class.
Fitted to the 508 saloon, 3008 crossover, and 5008 MPV, the EHZ was engineered for smooth, responsive power delive…
Production years 2010–2018 meet Euro 5 standards .
The Peugeot EHZ (DW10FDCU) is a 1,997 cc inline‑four turbo‑diesel engineered for mid‑size and large MPVs/saloons (2010-2018). It combines common rail direct injection with a variable geometry turbocharger to deliver smooth, flexible power and strong fuel economy. Designed to meet Euro 5 standards, it balances modern performance with environmental compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,997 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 85.0 mm × 88.0 mm | |
Power output | 120 kW (163 PS) @ 3,750 rpm | |
Torque | 340 Nm @ 2,000 rpm | |
Fuel system | Bosch CP4 high-pressure 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), electronically controlled | |
Timing system | Chain‑driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 172 kg |
The Peugeot EHZ (DW10FDCU) was used across Peugeot's PF2/PF3 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 508-but no major facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
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The EHZ (DW10FDCU)'s primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Peugeot Technical Note 10567/A documents this as a common service item, while owner reports frequently cite resulting non-start conditions. Fuel quality and service adherence make preventative maintenance critical.
Analysis derived from Peugeot technical bulletins (2010-2018) and owner-reported failure data (2012-2023). 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 EHZ is generally reliable when maintained correctly. Its chain-driven timing system is robust, and the core engine design is sound. The primary long-term risk is the high-pressure fuel pump, which can be mitigated by using high-quality fuel and adhering to service intervals. With proper care, 250,000+ km is a realistic expectation.
The most frequent issues are failure of the Bosch CP4 high-pressure fuel pump, DPF regeneration problems leading to limp mode, clogging of the EGR valve and cooler, and electronic faults with the variable geometry turbocharger actuator. These are well-documented in Peugeot service literature.
The EHZ engine was primarily fitted to the first-generation Peugeot 508 saloon (2010-2018), the first-generation 3008 crossover (2010-2016), and the first-generation 5008 MPV (2010-2016). It was typically found in higher-spec variants like Allure and GT.
Aftermarket ECU tuning is common on the EHZ-DW10FDCU 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.
Fuel economy is very good. In a Peugeot 508, expect around 5.5 L/100km (51 mpg UK) on a combined cycle. The lighter 3008 can achieve closer to 5.2 L/100km (54 mpg UK). Real-world figures are highly dependent on driving style and ensuring the DPF regenerates properly.
Yes. The EHZ (DW10FDCU) is an interference engine. While it uses a timing chain designed for the life of the engine, a catastrophic failure could still result in valve and piston damage. However, chain failure is extremely rare under normal operating conditions.
Peugeot specifies an oil meeting ACEA C2 or C3 standards. A good quality 5W-30 synthetic oil is ideal. This low-SAPS (Sulphated Ash, Phosphorus, Sulphur) oil is essential to protect the DPF and catalytic converter from clogging. Regular oil changes every 20,000 km are crucial.
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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