The Peugeot EP3 is a 1,199 cc, inline‑three naturally aspirated petrol engine produced between 2014 and 2021. It features dual overhead camshafts (DOHC), 12 valves, and sequential multi‑point fuel injection. In standard form it delivered 59 kW (82 PS) at 5,750 rpm and 118 Nm of torque at 2,750 rpm, providing responsive urban drivability.
Fitted to the Peugeot 108 (XV5), Citroën C1 (second generation), and Toyota Aygo (XV5), the EP3 was engineered for compact city mobilit…
All production years 2014–2021 meet Euro 6 standards .
The Peugeot EP3 is a 1,199 cc inline‑three naturally aspirated petrol engine engineered for A‑segment city cars (2014–2021). It combines DOHC valve actuation with sequential multi‑point injection to deliver brisk low‑end response and urban efficiency. Designed to meet Euro 6 emissions from launch, it balances compact packaging with drivability and compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,199 cc | |
Fuel type | Petrol (Unleaded, RON 95 min) | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 75.0 mm × 90.5 mm | |
Power output | 59 kW (82 PS) @ 5,750 rpm | |
Torque | 118 Nm @ 2,750 rpm | |
Fuel system | Sequential multi‑point injection (Siemens) | |
Emissions standard | Euro 6 | |
Compression ratio | 11.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain (maintenance‑free design) | |
Oil type | PSA B71 2312 (SAE 5W‑30) | |
Dry weight | 84 kg |
The Peugeot EP3 was used across PSA's XV5 platform with transverse mounting and co‑developed with Toyota for shared A‑segment applications. This engine received platform-specific adaptations—revised engine mounts in the 108 and unique intake manifolds in the Aygo—but remained mechanically identical across brands. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The EP3 is generally reliable if maintained properly. Early engines (2014–2016) had camshaft wear concerns, but post-2016 revisions resolved this. With correct oil (PSA B71 2312) and timely changes, the engine can exceed 150,000 km without major issues. Its non-turbo design reduces complexity compared to later PureTech units.
Main issues are exhaust cam lobe wear (pre-2016), throttle body carbon buildup, ignition coil failures, and engine mount degradation. Cam wear is the only serious mechanical concern; others are typical wear items. PSA issued Service Bulletin 9114A to address camshaft durability.
The EP3 was used exclusively in the Peugeot 108 (XV5, 2014–2021) as the 1.2 PureTech 82. It was also shared with the Citroën C1 and Toyota Aygo of the same generation under a joint venture. No other Peugeot models used this specific 1.2L NA three-cylinder.
Minimal tuning potential. As a naturally aspirated engine with fixed valve timing, ECU remaps yield negligible gains (<3 kW). Forced induction would require extensive internal and fuel system upgrades. Most owners prioritize reliability over performance with this city engine.
Excellent for its class. In the Peugeot 108, official combined consumption is 4.3 L/100km (65 mpg UK). Real-world mixed driving typically achieves 5.0–5.8 L/100km (48–56 mpg UK), depending on conditions. Urban use may see 6.0 L/100km; highway cruising can drop below 4.0 L/100km.
Yes. The EP3 is an interference design. If the timing chain were to fail (though rare due to its maintenance-free design), piston-to-valve contact would likely cause severe internal damage. However, chain failures are extremely uncommon in this engine family.
PSA specifies SAE 5W-30 oil meeting PSA B71 2312 standard (equivalent to ACEA C2/C3). Always use a low-SAPS, mid-ash synthetic oil designed for modern petrol engines. Change every 20,000 km or annually to protect the camshaft and valve train.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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