The Peugeot RFH (EW10A) is a 1,997 cc, inline‑four naturally aspirated petrol engine produced between 2001 and 2008. It features double overhead camshafts (DOHC), 16 valves, and sequential multi — point fuel injection. In standard form, it delivered 100 kW (136 PS) and 190 Nm of torque, providing a balance of performance and refinement for its era.
Fitted to models such as the 307, 407, and Partner Tepee, the RFH engine was engineered for smooth, reliable daily driving and c…
Production years 2001–2008 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot RFH (EW10A) is a 1,997 cc inline‑four naturally aspirated petrol engine engineered for mid‑size sedans and MPVs (2001-2008). It combines DOHC 16-valve architecture with sequential multi-point injection to deliver smooth, linear power delivery. Designed to meet Euro 3 standards, it prioritizes refinement and everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,997 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 85.0 mm × 88.0 mm | |
Power output | 100 kW (136 PS) @ 6,000 rpm | |
Torque | 190 Nm @ 4,100 rpm | |
Fuel system | Sequential multi-point injection (SAGEM) | |
Emissions standard | Euro 3 | |
Compression ratio | 10.4:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Peugeot 9736.10 (SAE 5W‑40) | |
Dry weight | 135 kg |
The Peugeot RFH (EW10A) was used across Peugeot's PF2/PF3 platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU mapping for the 407 versus the 307-but no major facelift revisions affected core compatibility. All adaptations are documented in OEM technical bulletins.
The RFH's primary reliability risk is exhaust camshaft lobe wear on early builds, with elevated incidence in engines subjected to frequent high-RPM use. Peugeot internal service data indicated a measurable rate of camshaft replacement in pre-2004 engines before 150,000 km. Adherence to correct oil specification and avoiding prolonged high-RPM operation are critical mitigation factors.
Analysis derived from Peugeot technical bulletins (2003-2007) and UK DVSA failure statistics (2010-2023). 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 RFH is generally a robust and reliable engine if maintained correctly. The main concern is exhaust camshaft wear on pre-2004 models, which can be mitigated by using the specified 5W-40 oil and avoiding excessive high-RPM driving. With proper care, these engines can easily exceed 200,000 km.
The most documented issues are premature exhaust camshaft lobe wear (early models), cracking plastic thermostat housings, failing ignition coils, and malfunctioning inlet manifold swirl flaps. These are covered in Peugeot service bulletins and are common failure points in high-mileage examples.
The RFH engine was primarily used in the Peugeot 307 (2001-2008), 407 (2004-2008), and Partner Tepee (2008-2010). It was also shared with Citroën, appearing in the C5 (2001-2008) as the 2.0i 16V. It's a transverse-mounted engine for front-wheel-drive platforms.
Yes, but gains are modest due to its naturally aspirated design. ECU remaps can yield around +8-12 kW by optimizing ignition and fuel maps. More significant power requires hardware like performance cams, exhaust, and intake, which is costly. It's better suited to reliability than tuning.
Fuel economy is respectable for its era. In a Peugeot 307 2.0i, expect around 9.0 L/100km in the city and 5.8 L/100km on the highway, averaging approximately 35-40 mpg UK combined. Real-world figures vary significantly with driving style and vehicle condition.
Yes. The RFH is an interference engine. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the timing chain is very durable and rarely fails if oil is changed regularly.
Peugeot mandates oil meeting their 9736.10 specification, typically a 5W-40 synthetic or semi-synthetic. Using the correct oil is paramount, especially to protect the camshafts. Always check the oil cap or owner's manual for the exact specification before topping up or changing.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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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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