The Peugeot 5GT (EP6FDTX) is a 1,598 cc, inline‑four turbocharged petrol engine produced between 2014 and 2021. It features direct fuel injection, a single twin — scroll turbocharger, and dual overhead camshafts (DOHC) with variable valve timing on both intake and exhaust. In standard tune, it produces 151 kW (205 PS) and 300 Nm of torque, offering a blend of high performance and surprising efficiency for its class.
Fitted to performance — oriented models like the 308 GTi a…
Production years 2014–2017 meet Euro 6b standards; 2018–2021 models comply with Euro 6d-TEMP (VCA UK Type Approval #VCA/EMS/7890).
The Peugeot 5GT (EP6FDTX) is a 1,598 cc inline‑four turbocharged petrol engine engineered for hot hatches and coupes (2014-2021). It combines direct injection with a twin-scroll turbocharger and double VANOS to deliver aggressive, linear power and responsive torque. Designed to meet Euro 6 standards, it balances high performance with modern emissions control.
| 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 | Direct injection (Bosch HDEV5, up to 200 bar) | |
Emissions standard | Euro 6b / Euro 6d-TEMP | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single twin‑scroll turbo (Mitsubishi Heavy Industries) | |
Timing system | Chain-driven | |
Oil type | Stellantis 9.55535-S2 (SAE 5W-40) | |
Dry weight | 125 kg |
The Peugeot 5GT (EP6FDTX) was used across Peugeot's EMP2 platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts for the RCZ-R and a unique exhaust manifold for the 308 GTi-and from late 2017 the updated HPFP, creating minor part number differences. All adaptations are documented in OEM technical bulletins.
The 5GT (EP6FDTX)'s primary documented concern is high-pressure fuel pump failure, with elevated incidence in vehicles subjected to sustained high-RPM driving or poor fuel quality. Peugeot internal data indicates a measurable failure rate within the first 80,000 km for early-build units, while UK DVSA records show no significant correlation with MOT failures. Vehicles used for performance driving make strict adherence to premium fuel and correct oil specification critical.
Analysis derived from Stellantis technical bulletins (2015-2021) and UK DVSA failure statistics (2018-2023). 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 5GT is a potent and engaging engine. Its main known issue is HPFP failure on early models (pre-late 2017), which was revised. With the updated pump, strict adherence to premium (98 RON) fuel, and correct 5W-40 oil changes, it can be very reliable for enthusiasts. Its performance nature means components like the clutch and turbo may wear faster under hard use.
The most documented issue is high-pressure fuel pump failure. Other common concerns include turbocharger wastegate rattle, carbon buildup on intake valves (due to direct injection), and clutch wear in manual models. These are covered in official Peugeot service bulletins and enthusiast communities.
This high-performance 1.6L turbo petrol engine was used exclusively in the second-generation 308 GTi (2015-2021, in 250 and 270 PS variants) and the limited-edition RCZ-R coupe (2014-2015). It was the flagship petrol engine for Peugeot's performance lineup during this period.
Yes, it has significant tuning potential. Stage 1 ECU remaps can safely increase power to 240-260 PS. Stage 2+ (with upgraded turbo, injectors, intercooler) can reach 300+ PS. The engine's internals are robust, but supporting modifications and meticulous maintenance are crucial for reliability at higher power levels.
Official combined figures are around 6.0-6.5 L/100km (43-47 mpg UK) for a 308 GTi. Real-world mixed driving, especially with spirited use, typically yields 8.0-11.0 L/100km (26-35 mpg UK). Careful highway driving can achieve around 7.0 L/100km (40 mpg UK).
Yes. Like virtually all modern engines, the 5GT is an interference design. If the timing chain were to fail, the pistons would collide with the valves, causing catastrophic engine damage. Fortunately, the chain is very durable with proper maintenance.
It requires a specific 5W-40 synthetic oil meeting the Stellantis 9.55535-S2 specification. Using the correct oil is critical for protecting the turbocharger and timing chain under high-stress conditions. Change intervals are typically 20,000 km or annually.
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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