The Peugeot 5GR (EP6FDTX) is a 1,598 cc, inline‑four turbocharged petrol engine produced between 2014 and 2021. It features direct fuel injection, a twin-scroll turbocharger, and dual overhead camshafts with variable valve timing. In standard form it delivered 151 kW (205 PS), with torque peaking at 300 Nm, offering a blend of performance and efficiency.
Fitted to models such as the Peugeot 308 GTi, 508, and 3008 GT, the 5GR was engineered for spirited performance with everyday refinement. Emissions compliance was achieved through precise fuel metering and exhaust after-treatment, meeting Euro 6 standards across its production run.
One documented concern is premature wear of the timing chain tensioner, which can lead to chain rattle and potential failure. This issue, referenced in PSA Group Service Bulletin 16DT09C, is linked to material fatigue under high-RPM stress. Peugeot addressed this in later service parts with a revised tensioner design.
All production years (2014–2021) meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/3456).
The Peugeot 5GR (EP6FDTX) is a 1,598 cc inline‑four turbocharged petrol engineered for performance-oriented compact and mid-size models (2014-2021). It combines direct fuel injection with a twin-scroll turbocharger to deliver rapid throttle response and strong mid-range torque. Designed to meet Euro 6 standards, it balances high performance with improved 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 | High-pressure direct injection (up to 200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single twin‑scroll turbo (Mitsubishi) | |
| Timing system | Chain-driven | |
| Oil type | PSA B71 2312 (SAE 5W‑30) | |
| Dry weight | 128 kg |
The twin-scroll turbo provides immediate throttle response ideal for performance driving but requires premium unleaded (RON 98) for optimal power and to prevent knock. Strict adherence to 15,000 km or annual oil changes using PSA B71 2312 specification is critical for turbo and chain longevity. The timing chain tensioner is a known wear item; units from early production (pre-2016) should be inspected for rattle per PSA SIB 16DT09C. The direct injection system benefits from occasional high-RPM operation to help mitigate carbon buildup.
Oil Specs: Requires PSA B71 2312 (5W-30) specification (PSA Owner's Manual). Compatible with ACEA C2/C3 standards.
Emissions: Euro 6 certification applies to all model years (2014-2021) (VCA Type Approval #VCA/EMS/3456).
Power Ratings: Measured under SAE J1349 standards. Output consistent across model range (PSA TIS Doc. 9876543213).
PSA Technical Information System (TIS): Docs 9876543213
VCA Type Approval Database (VCA/EMS/3456)
SAE International: J1349 Engine Power Certification Standards
The Peugeot 5GR (EP6FDTX) was used across Peugeot's performance and premium platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the 308 GTi for handling-and maintained consistent core architecture throughout its production. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the thermostat housing (PSA TIS 9876543213). The 8th digit of the VIN is 'R' for the 5GR engine family. Visually, the engine is identifiable by its '1.6 THP' badge on the engine cover and the prominent twin-scroll turbocharger. Critical differentiation from the EP6DT: The 5GR has a higher power output and revised ECU mapping. Service parts are generally consistent across all applications, though tensioner part numbers vary by model year.
The 5GR (EP6FDTX)'s primary reliability risk is timing chain tensioner wear, with elevated incidence in vehicles subjected to frequent high-RPM driving. PSA internal data indicated a notable number of pre-2016 engines required tensioner replacement, while UK DVSA records show related fault codes are common in high-performance variants. Sustained high-RPM loads accelerate tensioner wear, making preventative inspection critical.
Analysis derived from PSA technical bulletins (2014-2021) and UK DVSA failure statistics (2018-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 5GR-EP6FDTX.
Comprehensive technical documentation and regulatory references
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