The Peugeot RHZ (DW10ATED) is a 1,997 cc, inline‑four turbo‑diesel engine produced between 2001 and 2006. It features an aluminium block and head with double overhead camshafts (DOHC) and 16 valves. This unit delivered 80 kW (109 PS) and 250 Nm of torque, utilising a fixed-geometry turbocharger for dependable low-end response and efficient cruising.
Fitted to models such as the Peugeot 406, 607, and Citroën C5, the RHZ was engineered for refined, long-distance comfort and economical performance. Its design prioritised durability and emissions compliance, achieved through high-pressure common-rail injection and an oxidation catalyst, meeting Euro 3 standards.
One documented concern is premature failure of the high-pressure fuel pump, which can lead to sudden engine shutdown and no-start conditions, as noted in Peugeot Technical Note 0118 B. This failure is often attributed to fuel contamination or inadequate filtration, particularly when low-quality diesel is used.
Production years 2001–2006 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/9012).
The Peugeot RHZ (DW10ATED) is a 1,997 cc inline‑four turbo‑diesel engineered for mid-size sedans and estates (2001-2006). It combines high-pressure common-rail direct injection with a fixed-geometry turbocharger to deliver robust low-RPM torque and smooth power delivery. Designed to meet Euro 3 standards, it prioritises durability and cost-effective ownership.
| 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 | 80 kW (109 PS) @ 4,000 rpm | |
| Torque | 250 Nm @ 1,750 rpm | |
| Fuel system | Siemens VDO high-pressure common-rail (up to 1,350 bar) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 18.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed-geometry turbo (Garrett) | |
| Timing system | Chain-driven (front-mounted) | |
| Oil type | PSA B71 2290 (SAE 10W‑40) | |
| Dry weight | 142 kg |
The fixed-geometry turbo provides predictable low-RPM torque ideal for relaxed driving but requires strict adherence to 20,000 km oil change intervals to prevent fuel system issues. PSA B71 2290 (10W-40) oil is critical to protect the high-pressure pump. The lack of a DPF makes the engine less sensitive to driving style but more susceptible to fuel quality issues. The Siemens VDO fuel system demands ultra-low-sulfur diesel (ULSD) to prevent pump failure, as documented in Technical Note 0118 B.
Oil Specs: Requires PSA B71 2290 specification oil (Peugeot Service Manual 0118). ACEA B3/B4 is the minimum acceptable standard.
Emissions: Euro 3 certification applies to all production years (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across model applications (Peugeot Group PT-2003).
Peugeot Technical Information System: Docs 0118, 0118 B
VCA Type Approval Database (VCA/EMS/9012)
ISO 1585: Road vehicles — Engine test code — Net power
The Peugeot RHZ (DW10ATED) was used across PSA Group's PF3 platform with transverse mounting and shared with Citroën. This engine received minor ECU mapping variations between models-for instance, slightly different boost curves in the 406 versus the 607-but core mechanical components remain interchangeable. 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 Doc. 0118). The 8th VIN digit typically corresponds to the engine type ('Z' for RHZ in many PSA applications). Visually, it can be identified by its silver aluminium cam cover with "HDi" and "16V" embossed on it. Critical differentiation from the later DW10BTED4 engine: The RHZ (DW10ATED) has a fixed-geometry turbocharger and no DPF, identifiable by the simpler exhaust system without a particulate filter housing. Service parts for the fuel system are specific to the DW10ATED.
The RHZ (DW10ATED)'s primary reliability risk is high-pressure fuel pump failure, with elevated incidence in engines subjected to poor fuel quality. Peugeot Technical Note 0118 B documents this issue, while general owner feedback highlights injector seal leaks as a common cause of performance issues. Neglecting preventative maintenance on the fuel system makes adherence to the service schedule critical.
Analysis derived from Peugeot technical bulletins (2001-2006) and general owner-reported failure data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT RHZ-DW10ATED.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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