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 mobility with an emphasis on low emissions and fuel economy. Emissions compliance was achieved through precise fuel metering and a close‑coupled three‑way catalytic converter, meeting Euro 6 standards across all production years.
One documented concern is premature wear of the exhaust camshaft lobe, highlighted in PSA Service Bulletin 9114A. This issue is attributed to marginal lubrication under high thermal loads during extended low‑speed operation. From mid‑2016, PSA introduced revised camshaft metallurgy and updated valve‑train oiling passages to mitigate the failure mode.
All production years 2014–2021 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
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 EP3’s compact three‑cylinder layout delivers peppy urban performance but requires adherence to 20,000 km oil change intervals to maintain camshaft and chain longevity. PSA B71 2312 (5W‑30) oil is critical due to its tailored additive package for high‑rpm valve‑train protection. Extended idling or frequent short trips may accelerate exhaust cam lobe wear—especially in pre‑2016 units. Post‑2016 engines incorporate improved cam metallurgy per PSA SIB 9114A. The absence of turbocharging simplifies maintenance, but the timing chain remains non‑serviceable; any rattle warrants immediate inspection.
Oil Specs: Requires PSA B71 2312 (5W-30) specification (PSA Owner’s Handbook). Equivalent to ACEA C2/C3.
Emissions: Euro 6 certification applies to all model years (VCA Type Approval #VCA/EMS/5678). No market variation.
Power Ratings: Measured under UN ECE R85 standards. Output consistent across all applications (PSA TIS Doc. M01234).
PSA Technical Information System (TIS): Docs M01234, EP3‑1199‑A, SIB 9114A
VCA Type Approval Database (VCA/EMS/5678)
UN Regulation No. 85 – Engine Power Measurement
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.
Locate the engine code stamped on the front face of the cylinder block near the exhaust manifold (PSA TIS M01235). The 7th VIN digit is '3' for EP3-equipped vehicles across all three brands. Visual identification: black plastic cam cover with 'EP3' cast into the alloy. Critical differentiation from later PureTech turbo engines: EP3 lacks turbo plumbing, intercooler, and high-pressure fuel rail. All EP3 units use a round diagnostic connector under the dash; no software-based engine ID is required.
The EP3's primary reliability risk is exhaust camshaft lobe wear on pre-2016 builds, with elevated incidence in high-ambient-temperature or stop-start urban use. PSA internal quality data from 2017 indicated a measurable uptick in cam failures before 80,000 km in southern European markets, while UK DVSA records show no significant emissions-related MOT failures linked to this engine. Frequent short trips and delayed oil changes increase thermal stress, making oil specification and interval adherence critical.
Analysis derived from PSA technical bulletins (2014-2020) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 108-XV5.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with PEUGEOT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
PEUGEOT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialPEUGEOT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
