The Ford BOA is a 2,967 cc, V6 naturally aspirated petrol engine produced between 2004 and 2009. It featured a SOHC 24 — valve configuration with sequential multi — point fuel injection (S — MPI), delivering 147 kW (200 PS) at 6,000 rpm and 280 Nm of torque at 4,250 rpm. Designed for executive applications, it offered smooth power delivery and strong mid — range response ideal for highway cruising.
Fitted primarily to the Ford S — Max (2006–2010) and Ford Galaxy (2006–2010), the…
All BOA engines comply with Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/4678).
The Ford BOA is a 2,967 cc V6 naturally aspirated petrol engine designed for large MPVs (2004–2009). It combines SOHC valvetrain with sequential multi-point injection to deliver balanced performance and fuel efficiency. Designed to meet Euro 4 standards, it prioritizes smooth operation and low maintenance for family-oriented applications.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,967 cc | |
Fuel type | Petrol | |
Configuration | V6, SOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 89.0 mm × 80.0 mm | |
Power output | 147 kW (200 PS) @ 6,000 rpm | |
Torque | 280 Nm @ 4,250 rpm | |
Fuel system | Siemens Simos 7.6 S-MPI | |
Emissions standard | Euro 4 | |
Compression ratio | 10.3:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Rubber timing belt (interval: 120,000 km or 8 years) | |
Oil type | Ford WSS-M2C171-A (10W-40) | |
Dry weight | 185 kg |
The Ford BOA was used across Ford's C1 platform with transverse mounting and shared with Volvo in limited applications via component commonality. This engine received no major platform-specific adaptations and was phased out in 2009 with the introduction of the 3.0L Duratec Ti-VCT. All applications are documented in OEM technical bulletins.
The BOA's primary reliability risk is camshaft wear in early production units, with elevated incidence in high-mileage or poorly maintained examples. Internal Ford quality reports from 2007 indicated a measurable number of pre-2007 engines showing lobe degradation before 150,000 km, while UK DVSA records show timing belt neglect as a leading cause of engine failure. Extended service intervals and use of non-approved oil increase cam and belt stress, making adherence to maintenance schedules critical.
Analysis derived from Ford technical bulletins (2004-2009) and UK DVSA failure statistics (2009-2015). Repair procedures should follow manufacturer guidelines.
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The BOA is generally reliable for family driving when properly maintained. However, pre-2007 engines have a known risk of camshaft wear. Post-2007 revisions resolved this with improved heat treatment. Regular timing belt changes and use of Ford WSS-M2C171-A (10W-40) oil are essential for longevity. With proper care, these engines can exceed 200,000 km.
Key issues include camshaft wear in pre-2007 units, timing belt failure due to overdue service, idle instability from carbon buildup, and coolant leaks from the thermostat housing. These are documented in Ford service actions and technical bulletins, with camshaft revisions implemented from 2007 onward.
The BOA was used in the Ford S-Max (2006–2009) and Ford Galaxy (2006–2009), both equipped with the 3.0L 200 PS variant. It was not used in other Ford models or exported to North America. All applications are C1 platform vehicles with transverse engine layout.
The BOA has limited tuning potential due to its SOHC 24-valve design and naturally aspirated layout. ECU remapping yields minimal gains. Performance upgrades are rare, though cold air intakes and performance exhausts may offer slight throttle response improvements. The engine is best suited to stock configuration for reliability.
In combined driving, expect 11.0–13.0 L/100km (22–26 mpg UK) in the S-Max or Galaxy. City driving may see 13.5–15.0 L/100km (19–21 mpg UK), while highway runs can achieve 9.5–11.0 L/100km (26–30 mpg UK). Real-world economy benefits from steady-speed operation and regular maintenance.
Yes. The BOA is an interference engine. If the timing belt fails, the pistons will contact the open valves, causing severe internal damage. Adhering to the 120,000 km or 8-year replacement interval is critical to prevent costly engine repairs.
Ford specifies WSS-M2C171-A (10W-40) mineral-based oil. Change intervals should not exceed 120,000 km or 8 years, whichever comes first. Using correct oil helps protect the camshaft, especially in pre-2007 engines. Always use Ford-approved or equivalent ACEA A1/A5 oils.
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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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