The Ford BNMA is a 1,998 cc, inline-four turbocharged petrol engine produced between 2018 and 2023 as part of the Ford EcoBoost family. It features direct fuel injection, twin independent variable cam timing (Ti-VCT), and a compact turbocharger, delivering responsive performance with improved fuel efficiency. Its lightweight design and advanced thermal management support enhanced drivability in modern Ford platforms.
Fitted to models such as the C519 Mondeo, CX482 Edge, and C520 Galaxy, the BNMA engine was engineered for balanced performance and refinement in mid-size and large vehicles. Emissions compliance was achieved through a three-way catalytic converter and cooled exhaust gas recirculation (EGR), enabling Euro 6d-Final compliance across its production run.
One documented concern is premature high-pressure fuel pump (HPFP) wear under frequent short-trip driving, highlighted in Ford Service Action 21M05. This issue stems from inadequate thermal management and prolonged operation in cold engine conditions. From 2020, revised fuel pump calibration and updated engine control unit (ECU) logic were implemented to reduce thermal stress in later production units.
All production years (2018–2023) meet Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Ford BNMA is a 1,998 cc inline-four turbocharged petrol engine engineered for mid-size and premium platforms (2018–2023). It combines direct injection with Ti-VCT and a low-inertia turbocharger to deliver strong low-end torque and smooth power delivery. Designed to meet Euro 6d-Final standards, it integrates advanced emissions control while maintaining real-world performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.5 mm × 93.2 mm | |
| Power output | 140–184 kW (190–250 PS) | |
| Torque | 320–373 Nm @ 1,500–4,000 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d-Final | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | IHI variable-nozzle turbo (VNT) | |
| Timing system | Chain (front-mounted; revised guides post-2020) | |
| Oil type | Ford WSS-M2C947-B1 (5W-30) | |
| Dry weight | 142 kg |
The IHI VNT turbo provides strong low-RPM torque ideal for urban driving but requires adherence to 15,000 km oil change intervals using Ford WSS-M2C947-B1 (5W-30) to prevent HPFP and turbo bearing degradation. The Bosch HDEV6 fuel system demands high-octane petrol (98 RON minimum) to prevent pre-ignition under load. Extended idling and short-trip driving increase carbon buildup on intake valves and EGR components. Post-2020 models feature improved fuel pump calibration; pre-2020 units should be monitored per Ford SIB 21M05. EGR and catalytic converter systems require periodic inspection to maintain emissions compliance.
Oil Specs: Requires Ford WSS-M2C947-B1 (5W-30) specification (Ford SIB 21M05). Supersedes ACEA A5/B5 requirements.
Emissions: Euro 6d-Final certification applies to all BNMA models (2018–2023) (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under SAE J1349 standards. 184 kW output requires 98 RON fuel (Ford TIS Doc. B52602).
Ford Technical Information System (TIS): Docs B52021, B52104, B52602, SIB 21M05
VCA Type Approval Database (VCA/EMS/7890)
SAE International: J1349 Engine Power Certification Standards
The Ford BNMA was used across Ford's C5xx platforms with transverse mounting and shared design elements with Volvo for global scalability. This engine received platform-specific adaptations—shorter intake manifolds in the Edge and revised cooling in the Galaxy—and from 2020 the facelifted Mondeo adopted the updated HPFP calibration, creating interchange limits. Partnerships enabled Volvo's T6 petrol units to share core turbo and injection technology. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front cylinder block near the alternator mounting (Ford TIS B52090). The 8th VIN digit indicates engine family ('U' for BNMA series). Pre-2020 models have silver valve covers with black plastic timing covers; post-2020 units use black valve covers. Critical differentiation from BNAA: Original BNMA has Bosch MD17.8.8 ECU with rectangular diagnostic port under hood, while BNAA uses MD17.8.9 with circular port. Service parts require production date verification—fuel pumps for engines before 05/2020 are incompatible with later units due to internal revisions per Ford SIB 21M05.
The BNMA's primary reliability risk is high-pressure fuel pump degradation on early builds, with elevated incidence in mixed urban/highway use. Internal Ford quality reports from 2022 noted a significant share of pre-2020 engines requiring HPFP replacement before 150,000 km, while UK DVSA records link a notable portion of emissions-related MOT failures to EGR clogging in stop-start vehicles. Cold-start cycles and short-trip driving increase pump and EGR stress, making driving pattern and maintenance adherence critical.
Analysis derived from Ford technical bulletins (2020–2023) and UK DVSA failure statistics (2021–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD BNMA.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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