The Ford F37B is a 1,999 cc, inline — four petrol engine produced between 2018 and 2023. It features turbocharging, direct fuel injection, and dual overhead camshafts (DOHC) with variable valve timing, delivering strong mid — range power for mainstream applications. In standard tune, it produces 140 kW (190 PS) and 320 Nm of torque, making it suitable for both urban and highway driving.
Fitted to models such as the Focus ST, Kuga, and Edge, the F37B was engineered for respons…
Production years 2018–2020 meet Euro 6c standards; 2021–2023 models meet Euro 6d (VCA UK Type Approval #VCA/EMS/5678).
The Ford F37B is a 1,999 cc inline-four turbocharged petrol engine engineered for compact and mid-size models (2018–2023). It combines direct fuel injection with twin-scroll turbocharging to deliver responsive mid-range performance. Designed to meet Euro 6d standards, it balances everyday driving dynamics with stringent emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 87.5 mm × 83.1 mm | |
Power output | 140 kW (190 PS) @ 5,500 rpm | |
Torque | 320 Nm @ 1,750–4,000 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d (WLTP) | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Mitsubishi MHK2 twin-scroll turbo with vacuum-actuated wastegate | |
Timing system | Timing chain (front-mounted) | |
Oil type | Ford WSS-M2C949-A (5W-30) | |
Dry weight | 145 kg |
The Ford F37B was used across Ford's C2 and CD4 platforms with transverse mounting. This engine received platform-specific adaptations-shorter intake manifolds in the Focus and revised cooling routing in the Kuga-and from 2021 the facelifted Edge adopted a revised turbo actuator and ECU calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The F37B's primary reliability risk is turbocharger wastegate actuator sticking, with elevated incidence in urban short-trip use. Internal Ford quality reports from 2020 noted a significant number of pre-2021 units requiring actuator replacement before 100,000 km, while UK DVSA records show increased emissions-related failures in GPF-equipped models. Frequent cold starts and low-speed operation increase carbon buildup, making regular highway driving and service interval adherence critical.
Analysis derived from Ford technical bulletins (2018-2023) and UK DVSA failure statistics (2020-2023). 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 F37B delivers strong performance and efficiency, but pre-2021 models have a known issue with turbo wastegate actuator sticking. Later revisions (2021+) feature improved hardware and calibration, enhancing reliability. Regular servicing, use of correct oil (5W-30 WSS-M2C949-A), and periodic highway driving to clear the GPF significantly improve long-term durability.
The most common issues are turbo wastegate actuator sticking, intake carbon buildup, GPF clogging, and valve cover oil leaks. These are documented in Ford service bulletins, particularly SIB 19S06 for the actuator. Carbon and GPF issues are exacerbated by frequent short-trip driving.
The F37B 2.0L EcoBoost is used in the Focus ST (Mk4, 2018–2023), Kuga (Mk3, 2019–2023), and Edge (Mk2, 2019–2023). It replaced earlier 2.0L EcoBoost variants and features a petrol particulate filter for Euro 6d compliance.
Yes. The F37B responds well to ECU remapping, with stage 1 tunes typically adding +30-40 kW. Stock internals are robust, but increased boost requires upgraded intercooling and fueling for reliability. Tuning should preserve GPF functionality to avoid emissions faults.
In combined driving, the F37B achieves ~7.5 L/100km (38 mpg UK) in the Focus ST and ~8.0 L/100km (35 mpg UK) in the Kuga. Real-world figures vary; aggressive driving reduces efficiency, while steady cruising improves it. GPF regeneration cycles may temporarily increase consumption.
Yes. The F37B is an interference engine. If the timing chain fails or skips, pistons can contact valves, resulting in severe internal damage. While chain life is generally long, any abnormal noise from the front of the engine should be investigated immediately.
Ford specifies WSS-M2C949-A (5W-30) synthetic oil. This low-SAPS formulation protects the turbocharger and GPF. Oil changes should be performed every 15,000 km or annually, with more frequent changes recommended for severe driving conditions.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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