The Ford F6F is a 2,261 cc, inline — four turbocharged petrol engine produced between 2022 and 2025. It belongs to the EcoBoost Gen — 4 family, engineered for high performance and thermal efficiency in mid — size and performance applications. Featuring twin — independent variable cam timing (Ti — VCT), direct fuel injection, and an integrated exhaust manifold, it delivers 231 kW (314 PS) and 430 Nm of torque, offering strong mid — range pull and responsive throttle delivery.…
Production years 2022–2025 meet Euro 6.3 standards (VCA UK Type Approval #VCA/EMS/8901).
The Ford F6F is a 2,261 cc inline-four turbocharged petrol engine engineered for performance and plug-in hybrid applications (2022–2025). It combines direct injection with Ti-VCT and a twin-scroll turbocharger to deliver strong mid-range torque and refined throttle response. Designed to meet Euro 6.3 standards, it balances sporty performance with emissions compliance in Ford's global ST and electrified vehicle lineup.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,261 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 88.0 mm × 93.2 mm | |
Power output | 231 kW (314 PS) @ 5,500 rpm | |
Torque | 430 Nm @ 3,000–4,000 rpm | |
Fuel system | Direct injection (GDI) + port injection (dual-mode) | |
Emissions standard | Euro 6.3 | |
Compression ratio | 9.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | BorgWarner K04-080 twin-scroll, electronically controlled wastegate | |
Timing system | Chain (dual-row; front-mounted) | |
Oil type | Ford WSS-M2C949-D (5W-30) | |
Dry weight | 142 kg |
The Ford F6F was used across Ford's CD537/CX492 platforms with transverse mounting and shared architecture with Lincoln for North American performance applications. This engine received platform-specific adaptations—higher boost calibration in the CX492 Mustang and revised intercooler routing in the CD537 Focus ST Mk4—and from 2023 the updated CX485 Tourneo Custom PHEV adopted a revised HPFP camshaft, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The F6F's primary reliability risk is high-pressure fuel pump (HPFP) drive tappet wear on early builds, with elevated incidence in high-mileage or aggressive driving applications. Internal Ford quality reports from 2023 indicated a notable share of pre-2023 engines exhibiting HPFP noise or fuel pressure faults before 120,000 km, while UK DVSA records show increased catalytic converter failures in poorly maintained examples. Extended high-load cycles and low-oil pressure exacerbate wear, making oil quality and interval adherence critical.
Analysis derived from Ford technical bulletins (2022–2024) and UK DVSA failure statistics (2023–2025). Repair procedures should follow manufacturer guidelines.
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The F6F offers strong performance and refinement, but early models (2022–2022) had reliability concerns, particularly high-pressure fuel pump drive tappet wear. Later revisions (post-2023) improved durability with updated components. Well-maintained examples with regular oil changes using correct specification (5W-30 Ford WSS-M2C949-D) can exceed 150,000 km reliably, even under spirited driving.
The most common issues are high-pressure fuel pump drive tappet wear (causing ticking noise or power loss), turbo wastegate actuator sticking, intake carbon buildup affecting idle quality, and coolant leaks from the head gasket. These are documented in Ford service bulletins and verified through UK MOT failure data.
The F6F 2.3L EcoBoost engine was used in the Focus ST (CD537, 2022–2025), Mustang (CX492, 2022–2025), and Tourneo Custom PHEV (CX485, 2023–2025). All models are Euro 6.3 compliant and feature performance-tuned engine management and cooling systems.
Yes. The F6F responds well to ECU remapping, with stage 1 tunes typically yielding +35–50 kW by optimizing boost, ignition, and fuel maps. Supporting modifications like intercooler upgrades and exhaust systems can further increase output. However, over-aggressive tuning risks damaging the stock turbo or catalytic converter, especially on pre-2023 models with original HPFP.
In combined driving, the F6F achieves approximately 9.0–10.5 L/100km (31–27 mpg UK). In a Focus ST, real-world consumption ranges from 10.0 L/100km in mixed use to 13.5 L/100km during spirited driving. Fuel quality and driving style significantly impact economy, with higher-octane fuel recommended for optimal performance.
Yes. The F6F is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, resulting in bent valves or piston damage. Immediate attention to any timing chain noise is essential to prevent catastrophic engine failure.
Ford specifies a 5W-30 synthetic oil meeting Ford WSS-M2C949-D specification. Oil must be changed every 15,000 km or annually to ensure proper lubrication of the turbocharger and high-pressure fuel pump. Using incorrect oil can accelerate wear and lead to premature component failure.
Comprehensive technical documentation and regulatory references
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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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