The Peugeot 5GY (EP6FDTM) is a 1,598 cc, inline‑four turbo‑petrol engine produced between 2014 and 2021. It features a 16‑valve DOHC layout with variable valve timing (VVT) and direct fuel injection, paired with a twin‑scroll turbocharger to deliver 151 kW (205 PS) and 300 Nm of torque. This compact powerplant was engineered for responsive performance, offering strong low‑end pull and linear power delivery.
Fitted primarily to the high-performance 308 GTi and 508 GT, the 5GY was designed for agile, spirited driving. Emissions compliance for its production period was achieved through precise fuel metering and catalytic conversion, enabling adherence to the Euro 6 standard across its core European markets.
A documented reliability concern involves premature failure of the high-pressure fuel pump, potentially leading to sudden power loss. This issue, referenced in PSA Group Service Bulletin 15C009, is often attributed to fuel contamination or inadequate lubrication. The pump design was revised in later production runs to improve durability.
Production years 2014–2021 meet Euro 6 standards (VCA UK Type Approval #VCA/PSA/5GY).
The Peugeot 5GY (EP6FDTM) is a 1,598 cc inline‑four turbo‑petrol engineered for compact performance models (2014-2021). It combines gasoline direct injection with a twin‑scroll turbocharger to deliver sharp throttle response and high specific output. Designed to meet Euro 6 standards, it balances sporty performance with acceptable fuel economy.
| 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 | 151 kW (205 PS) | |
| Torque | 300 Nm @ 1,900 rpm | |
| Fuel system | Bosch direct injection (up to 200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin‑scroll turbo (Honeywell) | |
| Timing system | Chain‑driven (requires inspection) | |
| Oil type | PSA B71 2312 (SAE 5W‑40) | |
| Dry weight | 132 kg |
The twin-scroll turbo provides immediate throttle response ideal for spirited driving but demands strict 15,000 km or annual oil changes to prevent chain tensioner wear. PSA B71 2312 (5W-40) oil is critical for turbo and chain longevity. The Bosch direct injection system is sensitive to fuel quality; premium unleaded (98 RON) is recommended to prevent carbon buildup on intake valves. The chain-driven valvetrain is generally robust but should be inspected for tensioner wear after 120,000 km per PSA SIB 15C009.
Oil Specs: Requires PSA B71 2312 specification (PSA Service Schedule). Equivalent to ACEA C3.
Emissions: Euro 6 certification applies to all 2014–2021 models (VCA Type Approval #VCA/PSA/5GY).
Power Ratings: Measured under ECE R85 standards. Output is consistent across model range (PSA Group PT-2016).
PSA Technical Repair Manuals: 5GY Engine Section
VCA Type Approval Database (VCA/PSA/5GY)
ACEA Oil Sequences: C3 Specification
The Peugeot 5GY (EP6FDTM) was used across Peugeot's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the 308 GTi-and no significant facelift revisions occurred during its production run, ensuring broad parts compatibility. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the rear of the cylinder block, near the flywheel housing (PSA Repair Manual 5GY). The 8th digit of the VIN is 'T' for this 1.6 THP 205 engine variant. Visually, it can be identified by its black plastic rocker cover with red accents and the Honeywell twin-scroll turbocharger mounted at the front. Critical differentiation from the lower-powered EP6FDT: The 5GY has a higher power output (205 PS vs 165 PS) and a distinct ECU calibration. Service parts, particularly the turbocharger and injectors, are specific to the 5GY and not interchangeable with other EP6 variants without verification.
The 5GY's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. PSA internal data indicated a notable failure rate before 130,000 km in affected batches, while owner reports frequently cite sudden engine cut-outs. Fuel contamination and infrequent oil changes increase pump stress, making fuel quality and adherence to service schedules critical.
Analysis derived from PSA technical bulletins (2014-2021) and owner-reported failure data (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 5GY-EP6FDTM.
Comprehensive technical documentation and regulatory references
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