The Peugeot RHK (DW10UTED4) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. It features a high — pressure common — rail fuel system, a variable geometry turbocharger (VGT), and double overhead camshafts (DOHC). In standard applications, it produces 120 kW (163 PS) and 340 Nm of torque, offering a blend of performance and efficiency for mid — size vehicles.
Fitted to models like the 508 sedan and SW, as well as the 3008 and 5008 SUVs, the RHK was en…
Production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot RHK (DW10UTED4) is a 1,997 cc inline‑four turbo‑diesel engineered for mid‑size sedans and SUVs (2010-2018). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong low‑end torque and smooth highway performance. Designed to meet Euro 5 standards, it balances power with emissions 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) | |
Torque | 340 Nm @ 2,000 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
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 | 165 kg |
The Peugeot RHK (DW10UTED4) was used across Peugeot's PF2 and PF3 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced subframes in the 508 and specific engine mounts for the 3008-creating minor service part variations. All adaptations are documented in OEM technical bulletins.
The RHK's primary reliability risk is high-pressure fuel pump (HPFP) failure, with elevated incidence in vehicles using poor-quality fuel or extended service intervals. Peugeot internal reports linked a significant number of failures to fuel lubricity issues, while workshop data shows DPF-related faults are common in vehicles used predominantly for short urban trips. Adherence to fuel quality and service schedules is critical to prevent costly repairs.
Analysis derived from Peugeot technical bulletins (2010-2018) 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 RHK offers good performance but has a known weakness with its high-pressure fuel pump, especially in early models. Long-term reliability is achievable with meticulous maintenance: strict adherence to 20,000 km oil changes using PSA B71 2290 oil and using only high-quality, low-sulfur diesel fuel are paramount to avoid major failures.
The most frequent issues are high-pressure fuel pump (HPFP) failure, Diesel Particulate Filter (DPF) clogging, and Exhaust Gas Recirculation (EGR) system faults. Turbocharger actuator problems are also common. These are well-documented in Peugeot service bulletins, particularly SIB 6916A for the HPFP.
The 2.0 HDi 163 RHK engine was primarily used in the Peugeot 508 (sedan and SW) from 2010 to 2018. It was also fitted to the first-generation 3008 and 5008 SUVs from their launch until approximately 2016. It was not used in smaller models like the 308 of that era.
Yes, the RHK responds well to ECU remapping. Stage 1 tunes can safely increase power to around 180-200 PS and torque to 400+ Nm. The stock turbo and internals are robust. However, tuning increases stress on the clutch, transmission, and notably the HPFP, so ensuring the pump is in excellent condition or upgraded is highly recommended.
Fuel economy is very good for its power. In a Peugeot 508, expect around 6.5 L/100km (43 mpg UK) in combined driving. Highway cruising can yield 5.0 L/100km (56 mpg UK) or better. Urban driving will be higher, around 8.0 L/100km (35 mpg UK). Real-world figures depend heavily on driving style and DPF regeneration cycles.
Yes. The RHK (DW10UTED4) is an interference engine. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing severe and expensive internal engine damage. Fortunately, the chain is generally robust with proper oil maintenance.
Peugeot mandates the use of low-SAPS oil meeting the PSA B71 2290 specification, typically a 5W-30 viscosity. This is critical for protecting the emissions systems (DPF, CAT) and ensuring proper lubrication of the turbocharger and high-pressure fuel pump. Using the wrong oil can lead to premature component failure.
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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