The Ford DHB is a 1,498 cc, inline — three turbocharged petrol engine produced between 2018 and 2023. Part of Ford's EcoBoost engine family, it features direct fuel injection, twin — independent variable cam timing (Ti — VCT), and an integrated exhaust manifold. In standard tune, it delivers 103 kW (140 PS) and 240 Nm of torque, positioning it as a compact, efficient unit for subcompact and compact vehicle applications.
Fitted to models such as the Ford Fiesta ST (2018–2023)…
Production years 2018–2023 meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/8766).
The Ford DHB is a 1,498 cc inline-three turbocharged petrol engine engineered for compact and subcompact vehicles (2018–2023). It combines turbocharging with direct injection and Ti-VCT to deliver strong low-end torque and responsive throttle delivery. Designed to meet Euro 6d-TEMP emissions standards, it balances efficiency with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 79.0 mm × 81.4 mm | |
Power output | 103 kW (140 PS) @ 6,000 rpm | |
Torque | 240 Nm @ 1,600–4,000 rpm | |
Fuel system | Gasoline direct injection (GDi) with high-pressure fuel pump | |
Emissions standard | Euro 6d-TEMP | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single-scroll turbo with integrated exhaust manifold | |
Timing system | Timing chain (front-mounted, revised guide design) | |
Oil type | Ford WSS-M2C946-D (5W-30) | |
Dry weight | 108 kg |
The Ford DHB was used across Ford's B3 and C2 platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-integrated charge piping in the Fiesta ST and revised EGR routing in the Puma-and from 2020 the facelifted Focus adopted updated fuel pump calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The DHB's primary reliability risk is high-pressure fuel pump degradation on early builds, with elevated incidence in mixed urban/highway driving. Internal Ford quality reports from 2019 noted a significant share of pre-2020 engines exhibiting fuel pressure faults before 100,000 km, while UK DVSA MOT data links a portion of emissions failures to catalytic converter degradation in high-mileage units. Frequent short trips and use of lower-octane fuel increase stress on the GDi system, making fuel quality and interval adherence critical.
Analysis derived from Ford technical bulletins (2018-2022) and UK DVSA failure statistics (2019-2023). 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 DHB is generally reliable with regular maintenance, though early models (2018–2019) are prone to high-pressure fuel pump wear. Later revisions (post-2020) improved durability with updated calibration. Using correct oil (5W-30 WSS-M2C946-D) and adhering to 15,000 km service intervals significantly enhances longevity. Avoid low-octane fuel to prevent knock and carbon buildup.
Key issues include high-pressure fuel pump failure, turbo wastegate actuator sticking, intake carbon buildup, and valve cover oil leaks. These are documented in Ford service bulletins, particularly SIB 19G18 for fuel system concerns. Regular inspection and OEM-spec parts help mitigate risks, especially on pre-2020 units.
The DHB was used in the Ford Fiesta ST (2018–2023), Focus (2019–2023), and Puma (2019–2023). It was marketed as the 1.5 EcoBoost and was not licensed to other manufacturers. All applications are petrol-only and Euro 6d-TEMP compliant.
Yes, the DHB responds well to tuning. ECU remaps typically yield +20–30 kW due to robust turbo and engine internals. Aftermarket upgrades like intercoolers and exhausts further enhance performance. However, tuning increases stress on the HPFP and turbo, so supporting modifications and maintenance are essential for reliability.
In a Focus 1.5 EcoBoost (2020), combined consumption is ~6.8 L/100km (~41 mpg UK). Highway driving can achieve ~5.9 L/100km (~48 mpg), while city use may reach 8.5 L/100km (~33 mpg). Real-world economy depends on driving style, but 35–42 mpg (UK) is typical for mixed conditions with spirited driving.
Yes. The DHB is an interference engine. If the timing chain fails or skips, pistons can contact open valves, resulting in bent valves or piston damage. Immediate attention to any timing rattle is essential to prevent catastrophic failure.
Ford specifies 5W-30 synthetic oil meeting WSS-M2C946-D standard. This specification ensures proper lubrication for the turbocharger and direct injection system. Change oil every 15,000 km or annually to maintain engine health and prevent premature wear.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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