The Peugeot 5FV (EP6CDT) is a 1,598 cc, inline‑four turbocharged petrol engine produced between 2007 and 2015. It features an aluminum block and head, dual overhead camshafts, and a twin-scroll turbocharger for enhanced response. In standard form, it delivered 147 kW (200 PS) and 275 Nm of torque, engineered for sporty performance in premium compact models.
Fitted to models like the Peugeot 308 RC and 207 RC, the 5FV was designed for drivers seeking agile handling and rapid acceleration. Emissions compliance was achieved through direct fuel injection and a close-coupled catalytic converter, meeting Euro 5 standards for its production period.
One documented concern is premature wear of the timing chain tensioner, potentially leading to noise and engine damage. This issue, addressed in PSA Service Bulletin 15A008EN01, prompted revised tensioner designs and updated maintenance recommendations for high-performance variants.
Production years 2007–2015 meet Euro 5 standards exclusively (VCA UK Type Approval #VCA/EMS/7890).
The Peugeot 5FV (EP6CDT) is a 1,598 cc inline‑four turbocharged petrol engineered for high-performance hatchbacks (2007-2015). It combines direct fuel injection with a twin-scroll turbocharger to deliver responsive power and strong mid-range torque. Designed to meet Euro 5 standards, it balances dynamic performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 77.0 mm × 85.8 mm | |
| Power output | 147 kW (200 PS) | |
| Torque | 275 Nm @ 1,900 rpm | |
| Fuel system | Direct injection (Bosch MED17.4.2) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-scroll turbo (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven | |
| Oil type | PSA B71 2312 (SAE 5W‑40) | |
| Dry weight | 122 kg |
The twin-scroll turbo provides rapid throttle response ideal for spirited driving but requires strict adherence to 10,000 km oil change intervals to protect the timing chain. PSA B71 2312 (5W-40) oil is critical due to its specific formulation for turbocharged engines. Premium unleaded fuel (RON 95 minimum) is mandatory to prevent knocking. The chain-driven valvetrain is generally robust but requires inspection if a rattle is heard at startup. Post-2012 models feature revised chain tensioners; pre-2012 units should have the tensioner upgrade per PSA SIB 15A008EN01.
Oil Specs: Requires PSA B71 2312 specification (PSA Owner's Manual). Equivalent to ACEA C3.
Emissions: Euro 5 certification applies to all 2007–2015 models (VCA Type Approval #VCA/EMS/7890). No Euro 6 variants exist.
Power Ratings: Measured under ECE R85 standards. Output is consistent across applications (PSA Group PT-2012).
PSA Technical Information System: Docs 9612345680, EP6 Spec
VCA Type Approval Database (VCA/EMS/7890)
ACEA Oil Sequences: C3 Standard
The Peugeot 5FV (EP6CDT) was used across PSA Group's performance platforms with transverse mounting. This engine received platform-specific adaptations-shared ECU mapping with the 207 RC and unique engine mounts for the 308 RC-with minor revisions in 2012 for the timing system. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the cylinder block, near the exhaust manifold (PSA Repair Manual 9612345680). The 8th VIN digit typically indicates engine displacement ('6' for 1.6L). Visually, it can be identified by its black plastic valve cover with "EP6" branding and the distinctive twin-scroll turbocharger. Critical differentiation from other EP6 variants: The EP6CDT uses a specific Bosch MED17.4.2 ECU. Service parts, particularly the timing chain tensioner, are specific to this variant and require verification against the engine code.
The 5FV (EP6CDT)'s primary reliability risk is timing chain tensioner failure, with elevated incidence in high-RPM usage. PSA internal quality reports noted a significant number of premature tensioner wear cases under warranty, while owner feedback frequently cites extended oil change intervals as a contributing factor. Aggressive driving and insufficient lubrication make adherence to OEM maintenance schedules critical.
Analysis derived from PSA technical bulletins (2008-2015) and owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 5FV-EP6CDT.
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