The Peugeot RHS (DW10ATED) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2014 and 2021. It features a dual overhead camshaft (DOHC) layout with 16 valves and high — pressure common — rail direct injection, delivering outputs of 133 kW (181 PS) with torque figures of 400 Nm. Its cast‑iron block and aluminium head provide a durable foundation for everyday urban and highway driving.
Fitted to models like the 308 GT, 508 GT, and 3008 GT, the RHS was engineered fo…
Production years 2014–2021 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/8901).
The Peugeot RHS (DW10ATED) is a 1,997 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2014-2021). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient cruising. Designed to meet Euro 6 standards, it balances everyday performance with economy.
| 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 | 133 kW (181 PS) | |
Torque | 400 Nm @ 2,000 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 16.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Honeywell) | |
Timing system | Chain-driven | |
Oil type | PSA B71 2290 (SAE 5W‑30) | |
Dry weight | 150 kg |
The Peugeot RHS (DW10ATED) was used across Peugeot's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the 508 and revised exhaust routing in the 3008-and from 2017 facelifted 308 models adopted minor ECU and emissions revisions, creating minor software and hardware interchange limits. All adaptations are documented in OEM technical bulletins.
The RHS's primary reliability risk is EGR cooler failure on early builds, with elevated incidence in vehicles subjected to frequent short trips. Internal PSA data indicated a significant number of pre-2017 engines required cooler replacement before 100,000 km, while UK DVSA records note AdBlue system faults as a common MOT advisory item. Neglecting oil changes and using poor-quality fuel accelerate cooler wear, making fuel quality and interval adherence critical.
Analysis derived from Peugeot technical bulletins (2015-2021) and UK DVSA failure statistics (2015-2023). 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 RHS is generally robust with modern Euro 6 diesel technology. Its main weakness is the early EGR cooler, prone to failure before 100,000 km on pre-2017 models. Later revisions and diligent maintenance, especially using correct 5W-30 oil and high-quality fuel, make it a dependable engine for high mileage.
The most frequent issues are EGR cooler failure (causing coolant loss), AdBlue system faults (leading to limp mode), DPF regeneration problems, and turbocharger actuator faults. These are well-documented in PSA service bulletins and are common wear items for engines of this era.
This 2.0L diesel engine was widely used in the Peugeot 308 GT (2014-2021), 508 GT (2014-2021), and 3008 GT (2016-2021). It also powered Citroën models like the C5 Aircross (2017-2021). It was found in high-performance BlueHDi variants, meeting Euro 6 emissions standards.
Yes, but gains are modest. ECU remaps can yield +15-25 kW by optimizing fuel, boost, and AdBlue maps. More significant power requires hardware like a performance turbo, intercooler, and exhaust. The engine responds well to tuning, but the emissions systems are sensitive, so moderate upgrades are recommended.
Excellent for its power output. In a Peugeot 308 GT 2.0 BlueHDi, expect ~5.8 L/100km (city) and ~4.2 L/100km (highway), or around 55 mpg UK combined. Real-world economy typically ranges from 45-55 mpg UK, depending heavily on driving style and vehicle condition.
Yes. The RHS is an interference engine. If the timing chain jumps or breaks, the pistons will collide with the open valves, causing catastrophic engine damage. This makes maintaining the timing chain in good condition absolutely essential.
Peugeot specifies a 5W-30 synthetic oil meeting the PSA B71 2290 standard. Using the correct oil is vital for protecting the high-pressure fuel system and ensuring proper lubrication. Change intervals should not exceed 20,000 km or 12 months to maintain engine health.
Comprehensive technical documentation and regulatory references
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PEUGEOT Official Site
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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
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