The Peugeot RHW (DW10ATED4) is a 1,997 cc, inline‑four turbocharged diesel engine produced between 2010 and 2018. It features double overhead camshafts (DOHC), 16 valves, and a high-pressure common-rail fuel system with a fixed-geometry turbocharger. In standard specification, it delivered 110 kW (150 PS) and 370 Nm of torque, offering strong low-end pull for efficient everyday driving.
Fitted to models such as the 308, 508, and Partner, the RHW engine was engineered for fuel efficiency and relaxed cruising, prioritizing torque over peak power. Emissions compliance for its primary production run was achieved through a diesel particulate filter (DPF) and exhaust gas recirculation (EGR), meeting Euro 5 standards.
One documented concern is premature failure of the exhaust gas recirculation (EGR) valve, often due to carbon buildup restricting valve movement. This issue, noted in Peugeot Service Bulletin 10235, can trigger check engine lights and cause rough idling. Later service campaigns introduced revised valve designs and updated ECU software to improve durability.
Production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/7891).
The Peugeot RHW (DW10ATED4) is a 1,997 cc inline‑four turbocharged diesel engine engineered for compact and mid‑size vehicles (2010-2018). It combines a high-pressure common-rail injection system with a fixed-geometry turbocharger to deliver abundant low-RPM torque and frugal highway cruising. Designed to meet Euro 5 standards, it prioritizes efficiency and emissions compliance over ultimate performance.
| 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 | 110 kW (150 PS) @ 4,000 rpm | |
| Torque | 370 Nm @ 2,000 rpm | |
| Fuel system | High-pressure common-rail (Bosch CP4.2, up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed-geometry turbo (Garrett) | |
| Timing system | Chain-driven (upper camshafts) | |
| Oil type | ACEA C2 (e.g., SAE 5W-30) | |
| Dry weight | 155 kg |
The fixed-geometry turbo provides strong, predictable torque ideal for relaxed driving but demands strict adherence to 20,000 km oil change intervals using ACEA C2 specification oil to protect the chain system. Ultra-low-sulfur diesel (ULSD) meeting EN 590 standards is mandatory to prevent fuel system wear. The DPF system requires regular highway driving for passive regeneration; frequent short trips can lead to clogging. Revised EGR valves per SIB 10235 should be installed if a failure occurs.
Oil Specs: Requires ACEA C2 specification oil (Peugeot Owner's Manual). SAE 5W-30 is commonly recommended.
Emissions: Euro 5 certification applies to all 2010–2018 models (VCA Type Approval #VCA/EMS/7891).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across specified model range (Peugeot TIS Doc. M13457).
Peugeot Technical Information System (TIS): Docs M13457, SIB 10235
VCA Type Approval Database (VCA/EMS/7891)
SAE International: J1349 Engine Power Certification Standards
The Peugeot RHW (DW10ATED4) was used across Peugeot's PF2/PF3 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 508 and revised ECU mapping for the Partner. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Peugeot TIS M13457). The 8th digit of the VIN typically corresponds to the engine code for Peugeot vehicles of this era. Visually, the RHW engine features a black plastic cam cover with "HDi" and "16V" embossed on it. Critical differentiation from the similar DW10CTED4 engine: The RHW (DW10ATED4) has a fixed-geometry turbocharger and specific ECU mapping for 150 PS output. Service parts, particularly for the turbo and emissions systems, must be matched to the exact engine code.
The RHW's primary reliability risk is EGR valve failure due to carbon buildup, with elevated incidence in vehicles used primarily for short urban trips. Peugeot service bulletins document this issue, while general owner reports highlight DPF regeneration problems as a common secondary concern. Adherence to correct driving patterns and oil specification is critical for mitigating these risks.
Analysis derived from Peugeot technical bulletins (2012-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT RHW-DW10ATED4.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with PEUGEOT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
PEUGEOT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialPEUGEOT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
