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 and RCZ-R, the 5GT was engineered for spirited driving, delivering sharp throttle response and strong mid-range pull. Emissions compliance was achieved through a sophisticated three-way catalytic converter and precise engine management, meeting the stringent Euro 6b and later Euro 6d-TEMP standards depending on the model year.
A documented concern involves potential high-pressure fuel pump (HPFP) failure, which can lead to sudden power loss or no-start conditions. This issue, referenced in Peugeot Service Bulletin 16GT01EN01, is linked to internal wear of the pump's cam follower under sustained high-load conditions. Production updates in late 2017 incorporated a revised HPFP design to mitigate this.
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 twin-scroll turbo provides explosive mid-range torque ideal for spirited driving but demands strict adherence to 20,000 km or annual oil changes using the specified 5W-40 oil to protect the turbo bearings and timing chain. The high-pressure fuel pump is sensitive to fuel quality; using substandard fuel can accelerate cam follower wear. Vehicles driven aggressively should allow the turbo to cool via idle for 1-2 minutes after hard driving. The revised HPFP (from late 2017) should be installed if replacing the original unit per Service Bulletin 16GT01EN01.
Oil Specs: Requires Stellantis 9.55535-S2 (5W-40) specification (Stellantis Owner's Manual). ACEA A3/B4 compliant.
Emissions: Euro 6b certification applies to 2014-2017 models; Euro 6d-TEMP applies to 2018-2021 models (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Stellantis TIS Doc. ENG-EP6F-01).
Stellantis Technical Information System (TIS): Docs ENG-EP6F-01, ENG-EP6F-02
VCA Type Approval Database (VCA/EMS/7890)
Stellantis Service Information Bulletin (SIB) 16GT01EN01
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.
Locate the engine code 'EP6FDTX' stamped on the front face of the cylinder block, near the coolant pump (Stellantis TIS ENG-ID-007). The 8th digit of the VIN is 'G' for this specific 151kW/205PS variant. Pre-late 2017 models have a high-pressure fuel pump with part number 1617A9; post-update models use 1617B3. The engine management ECU is a Continental SIM48 variant. The RCZ-R features a unique engine cover and intake system compared to the 308 GTi.
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.
Find answers to most commonly asked questions about PEUGEOT 5GT-EP6FDTX.
Comprehensive technical documentation and regulatory references
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