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 facelift), the W7A was engineered for urban agility and fuel-efficient commuting. Emissions compliance is achieved through a gasoline particulate filter (GPF), cooled exhaust gas recirculation (EGR), and a close‑coupled three‑way catalytic converter, meeting Euro 6d standards across its production run.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) cam follower, leading to fuel pressure instability under load. This issue is referenced in Ford Service Bulletin SSM 53019 (02/2023), which attributes the failure to marginal lubrication during frequent short-trip operation. From late 2023, Ford implemented a revised HPFP with a hardened cam follower and improved oil feed geometry.
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 three‑cylinder layout provides brisk low‑end torque ideal for city driving but requires precise engine balancing via a counter‑rotating balance shaft. Strict adherence to 0W‑20 Ford‑approved oil is essential to protect the high‑pressure fuel pump and timing chain. Short‑trip driving accelerates HPFP wear due to fuel dilution and inadequate lubrication—Ford recommends extended warm‑up cycles in cold climates. The GPF mandates occasional highway runs (>2,500 rpm for 10+ minutes) to prevent clogging. Revised HPFP units (from 11/2023 onward, P/N CV9Z‑9350‑CA) should be used for replacements per SSM 53019.
Oil Specs: Requires Ford WSS-M2C948-B1 (0W-20) specification (Ford TIS F150W7A-06). Not interchangeable with ACEA C2/C3 oils.
Emissions: Euro 6d certification confirmed for all model years (VCA Type Approval #VCA/EMS/9215).
Power Ratings: Measured under EU Regulation (EC) No 715/2007. Peak output requires RON 98 fuel for optimal knock control (Ford PT-W7A/22).
Ford Technical Information System (TIS): Docs F150W7A-01 to F150W7A-06
Ford Service Shop Manual (SSM) 53019
VCA Type Approval Database (VCA/EMS/9215)
EU Regulation (EU) 2017/1151
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.
Locate the engine code stamped on the front face of the cylinder block near the timing cover (Ford TIS Fig. F150-02). The full code reads 'W7A' followed by a serial number. The 7th and 8th VIN digits for Fiesta are 'FZ' and for Puma 'PX'. Pre-11/2023 engines use HPFP P/N CV9Z-9350-AA; post-11/2023 units use CV9Z-9350-CA with hardened cam follower. Do not confuse with the lower-output W7B (125 PS) variant, which lacks GPF in early builds and has different turbo actuator calibration.
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.
Find answers to most commonly asked questions about FORD W7A.
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