The Ford EX – Petrol is a 2,495 cc, V6 naturally aspirated engine produced between 2005 and 2012. It features dual overhead camshafts (DOHC) and sequential multi-port fuel injection, delivering 147 kW (200 PS) and 245 Nm of torque. Its broad torque curve enables confident mid-range acceleration for highway merging and towing.
Fitted to models such as the Ford Mondeo Mk IV, S-Max, and Galaxy, the EX – Petrol was engineered for drivers seeking smooth refinement and balanced performance in larger family vehicles. Emissions compliance was achieved through integrated EGR and a three-way catalytic converter, enabling Euro 4 compliance across its production run.
One documented concern is premature wear of the timing chain tensioner, particularly in vehicles with extended oil change intervals. This issue, referenced in Ford Service Action 07B14, is attributed to reduced oil pressure at idle affecting the tensioner’s ability to maintain chain alignment. Revised tensioner components were introduced in 2008, improving long-term reliability.
Ford
Production years 2005–2009 meet Euro 4 standards; 2010–2012 models comply with Euro 5 (VCA UK Type Approval #VCA/EMS/5678).
The Ford EX – Petrol is a 2,495 cc V6 naturally aspirated engine engineered for mid-size and large passenger vehicles (2005–2012). It combines DOHC architecture with sequential multi-port fuel injection to deliver linear power delivery and smooth cruising. Designed to meet Euro 4 and later Euro 5 emissions standards, it balances performance with acceptable fuel economy for its class.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,495 cc | |
| Fuel type | Petrol | |
| Configuration | V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 89.0 mm × 66.8 mm | |
| Power output | 147 kW (200 PS) @ 6,000 rpm | |
| Torque | 245 Nm @ 4,250 rpm | |
| Fuel system | Sequential multi-port fuel injection | |
| Emissions standard | Euro 4 (2005–2009); Euro 5 (2010–2012) | |
| Compression ratio | 10.3:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Dual timing chains (front-mounted) | |
| Oil type | Ford WSS-M2C913-D (5W-30) | |
| Dry weight | 185 kg |
The V6 configuration provides smooth, vibration-free power ideal for highway cruising but requires strict adherence to 15,000 km oil service intervals to prevent timing chain wear. Ford WSS-M2C913-D (5W-30) oil is essential due to its high shear stability and anti-wear additives protecting the chain tensioner system. Extended idling and short trips increase carbon buildup on intake valves, necessitating periodic cleaning. The engine's sensitivity to oil pressure means worn oil pumps or clogged pickup screens can lead to chain slapping and potential jump. Post-2008 models benefit from revised tensioners; pre-2008 units should be inspected per Ford SIB 07B14. Catalytic converter longevity depends on fuel quality and misfire prevention.
Oil Specs: Requires Ford WSS-M2C913-D (5W-30) specification (Ford SIB 07B14). Meets Ford's WSS-M9224-D1 performance criteria.
Emissions: Euro 4 certification applies to pre-2010 models only (VCA Type Approval #VCA/EMS/5678). 2010-2012 models meet Euro 5 under EU Regulation (EC) No 715/2007.
Power Ratings: Measured under SAE J1349 standards. Output assumes premium unleaded fuel (95 RON) and clean intake system (Ford TIS M26001).
Ford Technical Information System (TIS): Docs M25790, M26102, SIB 07B14
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Ford EX – Petrol was used across Ford's Mk IV Mondeo, S-Max, and Galaxy platforms with transverse mounting and shared architecture with Volvo in certain European variants. This engine received platform-specific adaptations-shorter exhaust manifolds in the S-Max and enhanced engine mounts in the Galaxy-and from 2010 the facelifted Mondeo introduced revised intake tuning, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block near the exhaust manifold (Ford TIS M25805). The 8th VIN digit indicates engine type ('D' for EX series). Pre-2008 models have silver valve covers with black plastic cam covers; post-2008 units use black valve covers. Critical differentiation from Duratec HE: EX – Petrol uses a unique intake manifold with integrated plenum and lacks variable cam timing. Service parts require production date verification - timing kits for engines before 06/2008 are incompatible with later units due to tensioner redesign (Ford SIB 07B14).
The EX – Petrol's primary reliability risk is timing chain tensioner wear on early builds, with elevated incidence in urban driving with frequent cold starts. Internal Ford quality reports from 2009 indicated a significant number of pre-2008 engines requiring tensioner replacement before 150,000 km, while UK DVSA data shows increased catalytic converter failures in vehicles with misfire history. Short-trip driving and delayed oil changes increase wear, making service interval adherence critical.
Analysis derived from Ford technical bulletins (2007-2013) and UK DVSA failure statistics (2010-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD EX.
Comprehensive technical documentation and regulatory references
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FORD Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
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