The Peugeot 8FS (EP3) is a 1,360 cc, inline‑four naturally aspirated petrol engine produced between 2001 and 2006. It features a single overhead camshaft (SOHC) valvetrain with 16 valves, delivering a focus on simplicity and cost-effective urban mobility. In standard tune, it produces 55 kW (75 PS) and 117 Nm of torque, suitable for light, economical city driving.
Fitted to entry-level models like the 206 and Partner, the 8FS was engineered for low purchase price and running costs, prioritizing reliability over performance. Emissions compliance was achieved through multi-point fuel injection and a three-way catalytic converter, meeting the Euro 3 standard throughout its production run.
A documented concern involves potential premature wear of the timing belt tensioner pulley, which can lead to belt slippage or failure. This issue, referenced in PSA Service Bulletin 08FS01EN01, is linked to bearing degradation under high-temperature conditions. No major production updates were issued, but strict adherence to the 80,000 km or 5-year replacement interval is critical.
All production years (2001–2006) meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/4567).
The Peugeot 8FS (EP3) is a 1,360 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and light vans (2001-2006). It combines a SOHC 16-valve valvetrain with multi-point fuel injection to deliver adequate power for city driving and respectable fuel economy. Designed to meet Euro 3 standards, it prioritizes mechanical simplicity and low-cost maintenance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,360 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.0 mm × 77.0 mm | |
| Power output | 55 kW (75 PS) | |
| Torque | 117 Nm @ 3,000 rpm | |
| Fuel system | Multi-point fuel injection (SAGEM) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Timing system | Belt-driven | |
| Oil type | Stellantis 9.55535-S2 (SAE 10W-40) | |
| Dry weight | 95 kg |
The SOHC design offers mechanical simplicity but requires strict adherence to the 80,000 km or 5-year timing belt replacement interval to prevent catastrophic failure. The timing belt tensioner pulley is a known wear item; replacing it with the belt is strongly advised per Service Bulletin 08FS01EN01. The engine performs adequately on 95 RON fuel, though 91 RON is acceptable. Regular oil changes using the specified 10W-40 mineral or semi-synthetic oil are sufficient for longevity.
Oil Specs: Requires Stellantis 9.55535-S2 (10W-40) specification (Stellantis Owner's Manual). ACEA A3/B3 compliant.
Emissions: Euro 3 certification applies to all models (2001-2006) (VCA Type Approval #VCA/EMS/4567).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Stellantis TIS Doc. ENG-EP3-01).
Stellantis Technical Information System (TIS): Docs ENG-EP3-01, ENG-EP3-02
VCA Type Approval Database (VCA/EMS/4567)
PSA Service Information Bulletin (SIB) 08FS01EN01
The Peugeot 8FS (EP3) was used across Peugeot's PF1 platform with transverse mounting. This engine received platform-specific adaptations-unique exhaust systems for the Partner van-creating minor part number differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code 'EP3' stamped on the front face of the cylinder block, near the alternator (Stellantis TIS ENG-ID-003). The 8th digit of the VIN is '8' for this specific 55kW/75PS variant. The engine management ECU is a SAGEM 2000 variant. Service parts for the exhaust system (manifold, downpipe) may differ between 206 and Partner applications. The timing belt cover is a distinctive two-piece plastic design.
The 8FS (EP3)'s primary documented concern is timing belt tensioner pulley failure, with elevated incidence in vehicles subjected to high ambient temperatures or neglected maintenance. PSA internal data indicates a measurable failure rate if the belt is not replaced per schedule, while UK DVSA records show no significant correlation with MOT failures. Vehicles used in hot climates or with high mileage make strict adherence to the replacement interval critical.
Analysis derived from PSA technical bulletins (2002-2006) and UK DVSA failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 8FS-EP3.
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