The Ford DOFA is a 1,999 cc, inline — four naturally aspirated petrol engine produced between 2018 and 2023. It forms part of Ford's Sigma engine family, designed for compact and subcompact vehicle applications with an emphasis on reliability and cost — effective ownership. Featuring dual independent variable cam timing (Ti — VCT), port fuel injection, and a lightweight aluminium block, it delivers smooth, predictable power delivery ideal for urban commuting and light…
Production years 2018–2023 meet Euro 6c standards .
The Ford DOFA is a 1,999 cc inline-four naturally aspirated petrol engine engineered for compact vehicles (2018–2023). It combines port fuel injection with dual Ti-VCT to deliver smooth power delivery and strong low-end response. Designed to meet Euro 6c standards, it balances fuel economy with emissions compliance and everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 82.5 mm × 93.2 mm | |
Power output | 88–103 kW (120–140 PS) | |
Torque | 170–188 Nm @ 4,500 rpm | |
Fuel system | Port fuel injection (Delphi ML4) | |
Emissions standard | Euro 6c | |
Compression ratio | 12.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Chain-driven (DOHC, dual Ti-VCT) | |
Oil type | Ford WSS-M2C913-C (SAE 5W-20) | |
Dry weight | 116 kg |
The Ford DOFA was used across Ford's B298, C519, and C346 platforms with transverse mounting. This engine received platform-specific tuning—slightly revised torque curve in the Puma and cold-start calibration in the Focus—and from 2020, the updated Fiesta adopted a revised sensor bracket, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 DOFA is generally reliable with strong build quality and straightforward maintenance. Early models (2018–2020) had intermittent sensor fault issues, but post-2020 revisions resolved this. No major mechanical flaws are documented, and with regular servicing using correct oil (WSS-M2C913-C), these engines typically exceed 150,000 km without major repairs.
Key issues include false crankshaft sensor codes (pre-2020), timing chain tensioner wear, knock sensor false triggering with low-octane fuel, and exhaust manifold cracking due to thermal stress. These are documented in Ford service bulletins. Using correct fuel and oil significantly reduces risk.
The DOFA is used in the Fiesta (B298, 2018–2023), Focus (C519, 2019–2023), and Puma (C346, 2020–2023). Each application has minor calibration differences. It is not used in EcoBoost or diesel variants and was phased out in favour of the 1.0L EcoBoost in 2024.
Limited potential. As a naturally aspirated engine with port injection, ECU remapping yields minimal gains (typically +5–10 kW). Performance improvements are better achieved through intake/exhaust modifications, but gains are modest. The engine is not designed for forced induction upgrades.
In the Fiesta 1.0, expect ~7.0 L/100km (city) and ~5.0 L/100km (highway), or ~40 mpg UK combined. In the Focus, figures are ~7.4 L/100km combined. Real-world consumption depends on driving style, but aggressive use can exceed 9 L/100km.
Yes. The DOFA is an interference engine. If the timing chain fails, pistons can contact valves, causing severe internal damage. Chain and tensioner maintenance is critical—any rattling should be investigated immediately to prevent costly repairs.
Ford specifies SAE 5W-20 meeting WSS-M2C913-C spec. Use only Ford-approved or equivalent synthetic oil designed for naturally aspirated Ti-VCT engines. Change every 15,000 km or annually to protect the timing chain and camshafts.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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