The Ford N7BA is a 1,999 cc, inline — four, naturally aspirated petrol engine produced between 2018 and 2023. Part of Ford's updated Sigma engine family, it features double overhead camshafts (DOHC), variable cam timing (Ti — VCT), and multi — point fuel injection. Designed for mainstream passenger applications, it delivers 103 kW (140 PS) and 188 Nm of torque, offering balanced performance for urban and highway driving.
Fitted to models including the Ford Focus (Mk4), Fo…
Production years 2018–2023 meet Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Ford N7BA is a 1,999 cc inline-four petrol engine engineered for compact and mid-size passenger vehicles (2018–2023). It combines Ti-VCT variable cam timing with multi-point fuel injection to deliver linear throttle response and stable idle quality. Designed to meet Euro 6d-Final standards, it balances fuel economy with durability in mixed driving conditions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol (Unleaded, 95 RON) | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 82.5 mm × 93.2 mm | |
Power output | 103 kW (140 PS) @ 6,500 rpm | |
Torque | 188 Nm @ 4,500 rpm | |
Fuel system | Multi-point fuel injection (MPI) | |
Emissions standard | Euro 6d-Final | |
Compression ratio | 12.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing chain (front-mounted, low-stretch design) | |
Oil type | Ford WSS-M2C946-A (5W-30) | |
Dry weight | 124 kg |
The Ford N7BA was used across Ford's C519/CD3 platforms with transverse mounting and front-wheel drive layout. This engine received platform-specific adaptations-shorter intake manifolds in the EcoSport and revised engine mounts in the Kuga-and from 2020 received updated cam phaser hardware to address timing instability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The N7BA's primary reliability risk is intake camshaft phaser wear on early builds, with elevated incidence in aggressive driving cycles. Internal Ford field reports from 2021 indicated a notable number of pre-2020 engines exhibiting phaser noise before 120,000 km, while UK DVSA data links a significant share of emissions failures to lambda sensor degradation in high-mileage units. Short-trip cycles and delayed oil changes increase wear, making service interval adherence critical.
Analysis derived from Ford technical bulletins (2018-2022) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
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The N7BA is generally reliable when maintained properly, though early models (2018–2019) are prone to intake camshaft phaser wear. Post-2020 revisions significantly improved durability. Regular oil changes with Ford-spec 5W-30 and timely replacement of wear items (lambda sensors, water pump) support long-term reliability. Engines exceeding 180,000 km are common with consistent servicing.
The most frequent issues include intake camshaft phaser rattle at idle, lambda sensor failure leading to poor fuel economy, carbon buildup in the intake system, and coolant leaks from the water pump housing. These are documented in Ford service bulletins and field reports, with corrective hardware updates issued for phaser and housing components.
The N7BA 2.0L petrol engine was used in the Ford Focus (Mk4, 2018–2023), Ford Kuga (Mk3, 2019–2023), and Ford EcoSport (2018–2022). It was phased out in favour of hybrid and turbocharged EcoBoost engines. All variants meet Euro 6d-Final emissions standards.
Limited tuning potential exists. ECU remaps typically yield +10–15 kW, but gains are modest due to the naturally aspirated design and lack of performance-oriented internals. Aftermarket exhausts and intake systems offer minimal improvement. Most owners prioritize reliability over performance, and aggressive tuning may accelerate cam phaser wear due to increased RPM usage.
In real-world conditions, the N7BA achieves approximately 8.0–9.5 L/100km (city) and 5.5–6.5 L/100km (highway), translating to 30–35 mpg UK combined. Fuel economy varies by model and driving style. The Focus 2.0 is generally more efficient than the heavier Kuga or EcoSport. Proper maintenance ensures optimal efficiency.
Yes. The N7BA is an interference engine, meaning that if the timing chain fails or jumps, the pistons can contact the open valves, resulting in severe internal damage. This underscores the importance of timely inspection and replacement of the timing chain and cam phasers, especially on pre-2020 models.
Ford specifies WSS-M2C946-A (5W-30) synthetic blend or full synthetic oil. This must be changed every 15,000 km or 12 months, whichever comes first. Using the correct oil ensures proper lubrication of the cam phaser and reduces wear in high-temperature areas of the engine.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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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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