The Ford F4A is a 2,301 cc, inline-four, naturally aspirated petrol engine produced between 1998 and 2004. It features a cast-iron block, aluminium DOHC 16-valve head, and sequential multi-point fuel injection (SFi), delivering 107 kW (145 PS) and 207 Nm of torque. Designed for smooth, linear power delivery, the F4A was engineered to support increased vehicle weight in mid-size applications while maintaining drivability.
Fitted primarily to the Ford Mondeo (Mk2 and Mk3) and Volvo S40/V40 platforms under shared ownership, the F4A provided a balance of refinement and responsiveness in front-wheel-drive configurations. Its longer stroke compared to the F3FA improved low-end torque, enhancing urban and motorway performance. Emissions compliance was achieved through closed-loop lambda control and a three-way catalytic converter, enabling Euro 3 compliance across its production run (VCA UK Type Approval #VCA/EMS/6789).
One documented concern is intake manifold runner failure due to plastic degradation under prolonged heat cycles. This issue, referenced in Ford Service Action 99E/021, can result in reduced airflow and engine hesitation. From 2001, Ford introduced a revised manifold with improved heat-resistant polymer to enhance durability.
All production years (1998–2004) meet Euro 3 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Ford F4A is a 2,301 cc inline-four petrol engine engineered for mid-size sedans and wagons (1998–2004). It combines dual overhead camshafts (DOHC) with sequential fuel injection to deliver balanced performance and smooth operation. Designed to meet Euro 3 emissions standards, it prioritizes low-end torque and mechanical durability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,301 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 89.0 mm × 92.5 mm | |
| Power output | 107 kW (145 PS) @ 5,750 rpm | |
| Torque | 207 Nm @ 4,250 rpm | |
| Fuel system | Sequential multi-point fuel injection (SFi) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 10.2:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (90,000 km interval) | |
| Oil type | 5W-30 or 10W-40 (API SL/CF) | |
| Dry weight | 156 kg |
The longer stroke enhances low-RPM torque ideal for daily driving but requires adherence to the 90,000 km timing belt replacement interval to prevent interference damage. Use of API SL/CF-rated 5W-30 or 10W-40 oil is essential to maintain valvetrain lubrication under sustained load. Extended oil changes increase risk of sludge formation, particularly in short-trip driving. The SFi system benefits from periodic injector cleaning to maintain throttle response. The intake manifold is prone to cracking after 120,000 km; inspection is recommended during major services. Catalytic converters are sensitive to misfires; ignition system maintenance (plugs, leads) is critical to prevent costly emissions component damage.
Oil Specs: Requires API SL/CF specification (Ford SIB 99E/021). ACEA A2/B2 equivalent acceptable.
Emissions: All units comply with Euro 3 standards (VCA Type Approval #VCA/EMS/6789). No Euro 2 variants exist.
Power Ratings: Measured under ECE R85 standards. Output consistent across fuel qualities meeting EN 228.
Ford Technical Information System (TIS): Docs WSE-M4G310-A, WSE-M4G311-B, SIB 99E/021
VCA Type Approval Database (VCA/EMS/6789)
European Commission Regulation (EC) No 715/2007
The Ford F4A was used across Ford's Mk2/Mk3 Mondeo and Volvo S40/V40 platforms with longitudinal mounting and shared architecture under Ford's ownership of Volvo. This engine received platform-specific adaptations-revised intake manifolds in the Mondeo Mk3 and ECU recalibration in the S40-and from 2001 the updated F4A variant adopted a heat-resistant intake manifold, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block near the exhaust manifold (Ford TIS WSE-M4G310-A). The 8th VIN digit indicates engine type ('G' for 2.3L DOHC). Pre-2001 units have a black cam cover with "Zetec" branding; post-2001 models use a revised intake manifold with ribbed reinforcement. Critical differentiation from F3FA: F4A has a longer stroke (92.5 mm vs 88.0 mm) and larger displacement. Service parts require model-year verification—timing belts for pre-2001 engines are not compatible with later units due to tensioner redesign (Ford SIB 01F/025).
The F4A's primary reliability risk is intake manifold degradation, with elevated incidence in high-temperature environments. Internal Ford quality reports from 2002 indicated a significant number of early engines requiring manifold replacement before 120,000 km, while UK DVSA MOT records show a notable share of emissions failures linked to vacuum leaks. Extended oil intervals and poor-quality lubricants accelerate wear, making oil specification and service adherence critical.
Analysis derived from Ford technical bulletins (1998-2004) and UK DVSA failure statistics (1999-2006). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD F4A.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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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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