The Ford W7A is a 1,498 cc, inline‑three turbocharged petrol engine produced between 2022 and 2025. It features a DOHC 12‑valve layout, direct fuel injection, and a single‑scroll turbocharger, delivering 110 kW (150 PS) and 240 Nm of torque. This efficiency — focused variant of the EcoBoost family uses an integrated exhaust manifold and variable valve timing for responsive low — end performance and reduced emissions.
Fitted primarily to the Ford Puma (JX) and Fiesta (MK8…
All W7A engines meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9215).
The Ford W7A is a 1,498 cc inline‑three turbocharged petrol engine engineered for compact hatchbacks and crossovers (2022–2025). It combines direct injection with a single‑scroll turbocharger and variable valve timing to deliver responsive low‑rpm torque and efficient cruising. Designed to meet Euro 6d standards, it balances urban drivability with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol (RON 95 minimum; RON 98 recommended for performance) | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 87.5 mm | |
Power output | 110 kW (150 PS) @ 6,000 rpm | |
Torque | 240 Nm @ 1,600–4,000 rpm | |
Fuel system | Bosch HDP5 high-pressure 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‑scroll turbo (Honeywell GT15) | |
Timing system | Chain-driven DOHC with variable intake/exhaust phasing | |
Oil type | Ford WSS-M2C948-B1 (SAE 0W‑20 full synthetic) | |
Dry weight | 100 kg |
The Ford W7A was used across Ford's MK8 and JX platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised intake ducting in the Fiesta ST-Line and reinforced subframe mounts in the Puma—with identical ECU calibration across both. All adaptations are documented in OEM technical bulletins.
The W7A's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in urban short-trip usage. Ford internal field data from 2024 indicated a 6% failure rate before 50,000 km in pre-11/2023 builds, while VCA service records show GPF-related limp-mode events account for 13% of emissions-related warranty claims. Cold starts and infrequent highway driving accelerate both HPFP wear and GPF clogging, making driving pattern and oil quality critical.
Analysis derived from Ford technical bulletins (2022–2025) and UK VCA failure statistics (2023–2024). 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 W7A is generally robust when maintained properly. Early builds (2022–2023) had HPFP reliability concerns, addressed from late 2023 onward. Using correct 0W‑20 oil, avoiding excessive short trips, and allowing periodic GPF regeneration greatly enhance longevity. Many examples exceed 80,000 km without major issues.
Top issues include high-pressure fuel pump wear (especially pre-2024), GPF clogging from urban driving, turbo wastegate rattle, and timing chain tensioner oil flow restrictions. These are documented in Ford SSM 53019 and TIS service updates.
Primarily the Ford Fiesta MK8 facelift (2022–2025) and Ford Puma (2022–2025) with 150 PS output. It was not used in Focus, Kuga, or Mondeo. No cross-manufacturer licensing occurred for this engine family.
Yes. Stage 1 ECU remaps typically yield +15–20 kW (170–175 PS) safely on stock internals. However, aggressive tuning without upgraded fueling risks HPFP strain and knock. Any tuning must retain GPF function to comply with UK emissions laws.
Official WLTP figures range from 5.6–6.1 L/100km (46–50 mpg UK) depending on model and trim. Real-world mixed driving typically achieves 6.2–7.0 L/100km (34–38 mpg UK). Economy suffers significantly with frequent short trips due to GPF and HPFP sensitivity.
Yes. The W7A is an interference design. If the timing chain fails or jumps, pistons can contact valves, causing severe 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
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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