The Peugeot RHH (DW10CTED4) 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 variable geometry turbocharger (VGT). In standard specification, it delivered 120 kW (163 PS) and 340 Nm of torque, providing strong low-end pull for everyday drivability.
Fitted to models such as the 308, 508, and Partner, the RHH engine was engineered for a blend of fuel efficiency, low-RPM torque, and smooth operation. 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 high-pressure fuel pump, often linked to fuel contamination or inadequate lubrication. This issue, noted in Peugeot Service Bulletin 10234, can lead to a complete loss of fuel pressure and engine immobilization. Later service campaigns introduced revised pump internals and stricter fuel quality advisories.
Production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/7890).
The Peugeot RHH (DW10CTED4) 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 variable geometry turbocharger to deliver strong, accessible torque and efficient highway cruising. Designed to meet Euro 5 standards, it balances performance with stringent emissions control.
| 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 | 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 variable-geometry turbo (Honeywell) | |
| Timing system | Chain-driven (upper camshafts) | |
| Oil type | ACEA C2 (e.g., SAE 5W-30) | |
| Dry weight | 158 kg |
The VGT turbo provides strong, accessible torque ideal for urban and highway driving but demands strict adherence to 20,000 km oil change intervals using ACEA C2 specification oil to protect the turbo and chain system. Ultra-low-sulfur diesel (ULSD) meeting EN 590 standards is mandatory to prevent high-pressure fuel pump failure. The DPF system requires regular highway driving for passive regeneration; frequent short trips can lead to clogging and forced regeneration cycles. Revised fuel pumps per SIB 10234 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/7890).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across specified model range (Peugeot TIS Doc. M13456).
Peugeot Technical Information System (TIS): Docs M13456, SIB 10234
VCA Type Approval Database (VCA/EMS/7890)
SAE International: J1349 Engine Power Certification Standards
The Peugeot RHH (DW10CTED4) 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 M13456). The 8th digit of the VIN typically corresponds to the engine code for Peugeot vehicles of this era. Visually, the RHH engine features a black plastic cam cover with "HDi" and "16V" embossed on it. Critical differentiation from the similar DW10ATED engine: The RHH (DW10CTED4) has a specific Bosch CP4.2 high-pressure fuel pump and ECU mapping for higher output. Service parts, particularly for the fuel system, must be matched to the exact engine code due to revisions.
The RHH's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Peugeot service bulletins document this issue, while general owner reports highlight DPF regeneration problems as a common secondary concern. Adherence to correct fuel quality and driving patterns 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 RHH-DW10CTED4.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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