The Ford B7DA is a 1,989 cc, inline-four naturally aspirated petrol engine produced between 2002 and 2007 as part of the Ford Zetec family. It features double overhead camshafts (DOHC), variable cam timing (VCT), and multi-point fuel injection (MPFI), delivering 90 kW (122 PS) and 178 Nm of torque. Designed for mainstream compact applications, it balances reliability with responsive urban performance.
Fitted to models such as the Focus Mk2 and C-MAX, the B7DA engine was engineered for economical ownership and dependable drivability. Emissions compliance is achieved through a three-way catalytic converter and exhaust gas recirculation (EGR), enabling Euro 3 and later Euro 4 compliance across European markets. Its transverse front-wheel drive layout supports integration into Ford's C1 platform with minimal service complexity.
One documented concern is premature camshaft wear, highlighted in Ford Service Information Bulletin 05M04. This issue, linked to oil flow restrictions in early cylinder heads, can lead to increased valve train noise and reduced performance. From 2005, revised oil gallery machining and updated camshaft profiles improved durability in later production units.
Production years 2002–2004 meet Euro 3 standards; 2005–2007 models comply with Euro 4 (VCA UK Type Approval #VCA/EMS/2345).
The Ford B7DA is a 1,989 cc inline-four naturally aspirated petrol engine engineered for compact Ford models (2002–2007). It combines multi-point fuel injection with variable cam timing to deliver smooth throttle response and reliable urban performance. Designed to meet Euro 3–4 emissions standards, it prioritizes durability and cost-effective ownership.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,989 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 84.8 mm × 88.0 mm | |
| Power output | 90 kW (122 PS) @ 5,750 rpm | |
| Torque | 178 Nm @ 4,000 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 3 (2002–2004); Euro 4 (2005–2007) | |
| Compression ratio | 10.8:1 | |
| Cooling system | Water-cooled | |
| Timing system | Roller chain (single stage) | |
| Oil type | Ford WSS-M2C913-A (SAE 5W-30) | |
| Dry weight | 120 kg |
The naturally aspirated design provides linear throttle response ideal for city driving but requires adherence to 15,000 km oil change intervals using Ford WSS-M2C913-A (5W-30) oil to prevent sludge and camshaft wear. The absence of direct injection leads to minimal carbon buildup, though EGR system maintenance is recommended. Fuel quality is standard—RON 95 unleaded is sufficient. Post-2005 models feature revised oil galleries and camshaft profiles reducing wear risk. Cooling system maintenance is straightforward with conventional thermostat and water pump layouts.
Oil Specs: Requires Ford WSS-M2C913-A (5W-30) specification (Ford SIB 03 04 08). Compatible with ACEA A1/B1 and A5/B5 classifications.
Emissions: Euro 3 applies to 2002–2004 models (VCA Type Approval #VCA/EMS/2345). Euro 4 compliance confirmed for 2005–2007 units.
Power Ratings: Measured under SAE J1349 standards. Peak power achieved at 5,750 rpm with standard exhaust and intake configurations.
Ford Technical Information System (TIS): Docs B19750, B20120, SIB 03 04 08, SIB 05M04
VCA Type Approval Database (VCA/EMS/2345)
SAE International: J1349 Engine Power Certification Standards
The Ford B7DA was used across Ford's C1 platform with transverse mounting and front-wheel drive layout. This engine received platform-specific tuning—slightly revised intake manifolds in the C-MAX and enhanced NVH damping in the Focus—and from 2005 the updated cylinder head oil passages and camshaft profiles in facelifted models created minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine identification tag on the right-side cylinder block near the exhaust manifold (Ford TIS B19901). The 8th digit of the VIN indicates engine code ('D' for B7DA). Pre-2005 units have silver valve covers with black intake manifolds; post-2005 models use black valve covers. Critical differentiation: B7DA lacks turbocharging and direct injection, unlike later EcoBoost units. Service parts require model-year verification—camshafts for 2002–2004 models are not interchangeable with 2005+ due to profile and oil flow revisions (Ford SIB 05M04).
The B7DA's primary reliability risk is camshaft wear, with elevated incidence in urban driving and frequent thermal cycles. Internal Ford field reports from 2006 noted a measurable share of 2002–2004 engines exhibiting valve train noise before 100,000 km, while UK DVSA MOT data shows increased emissions-related failures linked to idle instability in city-driven vehicles. Stop-start usage and low-quality oil amplify wear risks, making oil specification and maintenance adherence critical.
Analysis derived from Ford technical bulletins (2002–2007) and UK DVSA failure statistics (2005–2012). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD B7DA.
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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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