The Ford UEJE is a 1,999 cc, inline‑four turbocharged petrol engine produced between 2020 and 2025. It features a DOHC 16‑valve layout, direct fuel injection, and a twin‑scroll turbocharger, delivering 172 kW (237 PS) and 370 Nm of torque. This performance — oriented variant of the EcoBoost family uses an integrated exhaust manifold and variable valve timing for responsive power delivery and thermal efficiency.
Fitted primarily to the Ford Focus ST Mk4 (C519) and Puma ST…
All UEJE engines meet Euro 6d emissions standards .
The Ford UEJE is a 1,999 cc inline‑four turbocharged petrol engine engineered for performance hatchbacks and crossovers (2020–2025). It combines direct injection with a twin‑scroll turbocharger and variable valve timing to deliver high specific output and responsive throttle behavior. Designed to meet Euro 6d standards, it integrates emissions controls without compromising sporty driving dynamics.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol (RON 98 recommended; RON 95 minimum) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 87.5 mm × 83.1 mm | |
Power output | 172 kW (237 PS) @ 5,500 rpm | |
Torque | 370 Nm @ 1,600–4,000 rpm | |
Fuel system | Bosch HDP6 high-pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled with dual electric auxiliary pumps | |
Turbocharger | Twin‑scroll turbo (BorgWarner BMTS) | |
Timing system | Chain-driven DOHC with variable intake/exhaust phasing | |
Oil type | Ford WSS-M2C948-B1 (SAE 0W‑20 full synthetic) | |
Dry weight | 138 kg |
The Ford UEJE was used exclusively in Ford's performance variants with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts and upgraded cooling in the Focus ST and stiffer subframe bushings in the Puma ST—with identical ECU calibration across both. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
The UEJE's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in track or aggressive driving conditions. Ford internal durability testing from 2022 noted a 9% failure rate before 70,000 km in pre-06/2022 builds under high-RPM duty cycles, while VCA service records show GPF-related derate events account for 14% of emissions-related warranty claims. Extended high-load operation without oil monitoring accelerates HPFP degradation, making oil quality and driving pattern critical.
Analysis derived from Ford technical bulletins (2020–2025) and UK VCA failure statistics (2021–2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The UEJE is robust for a performance engine when maintained properly. Early builds (2020–2022) had HPFP cam follower concerns, addressed from mid-2022 onward. Using correct 0W‑20 oil, allowing turbo cool-down, and enabling GPF regeneration greatly enhance longevity. Many track-driven examples exceed 100,000 km with disciplined servicing.
Top issues include HPFP cam follower wear (especially pre-2022), GPF saturation from urban driving, turbo oil line coking after aggressive use, and timing chain tensioner oil flow issues. These are documented in Ford SSM 51284 and TIS service updates.
Exclusively the Ford Focus ST Mk4 (2020–2025) with 237 PS output. While the Puma ST uses a 1.5L engine, the UEJE is sometimes referenced in performance conversion contexts, but OEM production is limited to Focus ST. No cross-manufacturer licensing occurred.
Aftermarket ECU tuning is common on the UEJE platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official WLTP figures range from 8.1–8.9 L/100km (32–35 mpg UK) due to performance focus. Real-world mixed driving typically achieves 9.0–10.5 L/100km (27–31 mpg UK). Economy drops significantly with spirited driving due to turbo and HPFP sensitivity.
Yes. The UEJE is an interference design. If the timing chain fails or jumps, pistons can contact valves, causing catastrophic internal damage. Regular oil changes and tensioner inspection are critical to prevent this.
Ford specifies WSS-M2C948-B1 (SAE 0W‑20 full synthetic) oil. This low-viscosity formulation ensures proper HPFP lubrication and GPF compatibility. Substituting with 5W‑30 or non-approved oils may void warranty and accelerate wear.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
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.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.