The Ford UEJB is a 1,596 cc, inline‑four turbocharged direct-injection petrol engine produced between 2012 and 2018. It features dual overhead camshafts (DOHC), four valves per cylinder, and a twin-scroll turbocharger with variable valve timing. In standard form it delivered 118 kW (160 PS) at 6,000 rpm with 240 Nm of torque at 1,750–4,500 rpm, offering strong low-end response and refined performance.
Fitted to models such as the Ford Focus MkIII, C-MAX, and Mondeo MkIV, the UEJB was engineered for drivers seeking a balance of fuel efficiency, responsive torque delivery, and emissions compliance. Emissions control was achieved through gasoline particulate filtration (GPF in later variants), cooled exhaust gas recirculation (EGR), and precise high-pressure fuel injection, meeting Euro 5 and Euro 6 standards depending on model year.
One documented concern is high-pressure fuel pump (HPFP) wear leading to hard starts or limp-mode activation. This issue, referenced in Ford Engineering Bulletin FE‑15/09, is linked to marginal lubricity in low-sulfur fuels and thermal cycling stress on the pump cam follower. From 2016, revised HPFP components with hardened internals were introduced to improve service life.
Production years 2012–2014 meet Euro 5 standards; 2015–2018 models comply with Euro 6 (VCA UK Type Approval #VCA/EMS/9214).
The Ford UEJB is a 1,596 cc inline‑four turbocharged direct-injection petrol engine engineered for compact and mid-size hatchbacks/sedans (2012–2018). It combines a twin-scroll turbocharger with variable valve timing and high-pressure direct injection to deliver responsive torque and smooth power delivery. Designed to meet Euro 5 and Euro 6 emissions standards, it balances performance with regulatory compliance and urban drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,596 cc | |
| Fuel type | Petrol (Unleaded, min. 95 RON) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 79.0 mm × 81.4 mm | |
| Power output | 118 kW (160 PS) @ 6,000 rpm | |
| Torque | 240 Nm @ 1,750–4,500 rpm | |
| Fuel system | High-pressure direct injection (up to 200 bar) | |
| Emissions standard | Euro 5 (2012–2014); Euro 6 (2015–2018) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-scroll turbo (Honeywell GT15) | |
| Timing system | Chain-driven DOHC with variable intake timing | |
| Oil type | Ford WSS-M2C948-B1 (SAE 5W-30) | |
| Dry weight | 132 kg |
The twin-scroll turbo provides strong mid-range torque ideal for urban and highway driving but demands strict adherence to 15,000 km oil change intervals using Ford WSS-M2C948-B1 (5W-30) oil to protect the high-pressure fuel pump and timing chain. Low-sulfur fuels with marginal lubricity accelerate HPFP cam follower wear—Ford recommends only EN 228-compliant fuel. Carbon buildup on intake valves is minimal due to direct injection, but GPF-equipped models (2015+) require consistent highway driving to enable passive regeneration. Cold-start enrichment strategies increase fuel consumption in short-trip use.
Oil Specs: Requires Ford WSS-M2C948-B1 (5W-30) specification (Ford Lubricants Guide 2014). Equivalent to ACEA C2/C3 with low-SAPS formulation.
Emissions: Euro 5 applies to 2012–2014 builds; Euro 6 compliance for 2015–2018 models confirmed under VCA Type Approval #VCA/EMS/9214.
Power Ratings: Measured under ISO 1585 standards. Output verified on Ford dynamometer test cell TC-12 (Ford PT-2015).
Ford Technical Information System (TIS): Docs F-TIS/12-772, F-TIS/12-805, SIB FE-15/09
VCA Type Approval Database (VCA/EMS/9214)
ISO 1585: Road vehicles — Engine test code
The Ford UEJB was used across Ford's C1 and CD4 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Mondeo for NVH reduction and updated turbo routing in the Focus ST-Line—and from 2015 the introduction of gasoline particulate filters (GPF) created interchange limits between Euro 5 and Euro 6 variants. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the rear face of the block near the exhaust manifold (Ford TIS F-TIS/12-772). The code 'UEJB' appears as cast lettering. Euro 5 variants (2012–2014) lack a gasoline particulate filter and have a simpler exhaust manifold; Euro 6 units (2015–2018) include a GPF and O2 sensor downstream of the catalytic converter. Critical differentiation from 1.5L EcoBoost: UEJB uses a 1.6L displacement with bore/stroke of 79.0×81.4 mm, while 1.5L units have 79.0×77.4 mm. ECU part numbers also differ—UEJB uses Bosch MD1CP003.
The UEJB's primary reliability risk is high-pressure fuel pump (HPFP) wear, with elevated incidence in vehicles using marginal-quality fuel or subjected to frequent short-trip driving. Ford internal warranty data from 2016 noted a measurable uptick in HPFP replacements in southern European markets, while UK DVSA historical MOT data shows no direct emissions failures but frequent DTC-related advisories. Extended oil intervals and low-RON fuel accelerate wear, making fuel quality and maintenance adherence critical.
Analysis derived from Ford technical bulletins (2012–2018) and UK DVSA failure statistics (2015–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD UEJB.
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