The Ford UKDB is a 1,499 cc, inline‑three turbocharged petrol engine produced between 2020 and 2025. It features a DOHC 12‑valve layout, gasoline direct injection (GDI), and a single twin‑scroll turbocharger. In standard form it delivered 125 kW (170 PS) at 6,000 rpm with 260 Nm of torque at 1,600–4,000 rpm, providing brisk low — end response and improved fuel efficiency over previous four — cylinder EcoBoost units.
Fitted to models such as the Ford Puma ST, Fiesta ST (2020+…
All production years (2020–2025) comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/FORD-UKDB-2020).
The Ford UKDB is a 1,499 cc inline‑three turbocharged petrol engine engineered for performance-oriented compact vehicles (2020–2025). It combines gasoline direct injection with a twin‑scroll turbocharger to deliver strong mid-range torque and responsive throttle behavior. Designed to meet Euro 6d emissions standards under real-driving conditions, it integrates a gasoline particulate filter and cooled EGR for full regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,499 cc | |
Fuel type | Petrol (Gasoline) | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 87.5 mm | |
Power output | 125 kW (170 PS) @ 6,000 rpm | |
Torque | 260 Nm @ 1,600–4,000 rpm | |
Fuel system | High-pressure gasoline direct injection (up to 200 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Single twin‑scroll turbo (BorgWarner B03) | |
Timing system | Chain-driven DOHC (front-mounted) | |
Oil type | Ford WSS‑M2C948‑B (SAE 5W‑30 synthetic) | |
Dry weight | 104 kg |
The Ford UKDB was used across Ford's B2E and C2 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—sport-tuned mounts and exhaust in the Fiesta ST, and enhanced cooling in the Puma ST—and from 2023 the HPFP cam follower was revised to address wear concerns, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The UKDB's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear due to marginal lubrication under high thermal stress, with elevated incidence in vehicles subjected to extended oil change intervals or non-compliant oils. Ford internal field reports from 2022 noted a measurable rate of P0087 fuel rail pressure faults after 70,000 km in non-compliant maintenance cases, while UK DVSA MOT data shows GPF-related warning lights as a secondary concern in high-idle urban use. Adherence to oil specs and driving patterns makes HPFP longevity critical.
Analysis derived from Ford technical bulletins (2020–2025) and UK DVSA failure statistics (2021–2025). Repair procedures should follow manufacturer guidelines.
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The UKDB offers strong performance and efficiency but demands strict maintenance. HPFP cam follower wear is the top concern, especially with poor oil quality or extended intervals. Using Ford-specified 5W‑30 oil, adhering to 10,000 km changes, and choosing TOP TIER fuel greatly improve reliability. Many well-maintained examples exceed 120,000 km without major issues.
Top issues include HPFP cam follower wear (P0087), GPF saturation from short trips, turbo wastegate actuator failure, and timing chain tensioner rattle. These are documented in Ford TSB‑22‑0018 and related service updates. Most are preventable with proper maintenance and driving habits.
The UKDB powers the Ford Fiesta ST (2020–2023), Puma ST (2020–2025), and Focus ST-Line (2021–2023). The Focus variant includes mild-hybrid 48V assist; the ST models are non-hybrid. No cross-manufacturer usage is documented.
Yes. Stage 1 ECU remaps typically yield +20–25 kW safely on stock hardware. The three-cylinder bottom end is robust, but HPFP and turbo durability become limiting beyond 200 PS. Supporting upgrades like a high-flow fuel pump, intercooler, and downpipe are recommended for Stage 2 tuning.
In a Fiesta ST: ~6.8 L/100km (42 mpg UK) combined. Real-world figures range from 38–45 mpg UK depending on driving style. Highway cruising can achieve ~5.5 L/100km (51 mpg UK), while aggressive driving drops below 35 mpg UK.
Yes. The UKDB is an interference design. If the timing chain fails or jumps, pistons can contact open valves, causing catastrophic engine damage. Regular inspection of chain tensioners and oil quality is essential.
Ford specifies WSS‑M2C948‑B (5W‑30) synthetic oil—a low-SAPS, ACEA C2/C3 formulation. This protects the HPFP, turbo, and GPF. Never use non-approved oils, as they may accelerate HPFP wear or cause GPF clogging.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Vehicle Certification Agency (VCA)
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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
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