The Ford G6DG is a 1,596 cc, inline-four petrol engine produced between 2011 and 2018. Part of the Ford Sigma EcoBoost family, it features turbocharging, direct fuel injection, and twin-independent variable cam timing (Ti-VCT). Delivering 138 kW (188 PS) and 240 Nm of torque, it was engineered for responsive performance and improved fuel efficiency over naturally aspirated equivalents, particularly in urban and mixed driving conditions.
Fitted to models such as the Focus ST, Kuga, and Mondeo, the G6DG was designed to deliver sporty driving dynamics while meeting Euro 5 emissions standards. It utilises a high-pressure Bosch HDEV5 fuel system and a Garrett GT1544V variable-vane turbocharger, with emissions control achieved through a three-way catalytic converter and closed-loop lambda monitoring.
One documented concern is premature timing chain wear under extended oil change intervals, highlighted in Ford Service Action 14S06. Inadequate lubrication due to delayed servicing can accelerate guide and tensioner wear. From 2014, revised chain components were introduced to improve durability, reducing failure incidence in later production units.
Production years 2011–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5679).
The Ford G6DG is a 1,596 cc inline-four turbocharged petrol engine engineered for performance-oriented compact and mid-size models (2011–2018). It combines direct fuel injection with twin-independent variable cam timing (Ti-VCT) to deliver strong low-end torque and linear power delivery. Designed to meet Euro 5 emissions standards, it balances performance with regulated efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,596 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 79.0 mm × 81.4 mm | |
| Power output | 138 kW (188 PS) @ 6,000 rpm | |
| Torque | 240 Nm @ 1,600–4,000 rpm | |
| Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Garrett GT1544V variable-vane turbo | |
| Timing system | Timing chain (front-mounted; wear-prone under poor maintenance) | |
| Oil type | Ford WSS-M2C946-B (5W-20) | |
| Dry weight | 125 kg |
The turbocharged G6DG delivers strong low-end torque ideal for city driving but requires strict adherence to 15,000 km oil change intervals to prevent timing chain wear and turbo bearing degradation. Ford WSS-M2C946-B (5W-20) oil is critical due to its low-viscosity formulation supporting fuel economy and chain lubrication. Extended idling and short trips increase carbon buildup on intake valves, necessitating periodic cleaning. The Bosch HDEV5 fuel pump demands high-octane petrol (95 RON minimum) to prevent knock and injector coking. Post-2014 models feature upgraded chain guides; pre-2014 units should be inspected per Ford SIB 14S06. Turbocharger wastegate operation requires periodic verification to maintain boost consistency.
Oil Specs: Requires Ford WSS-M2C946-B (5W-20) specification (Ford SIB 14S06). Supersedes ACEA C2 requirements.
Emissions: Euro 5 certification applies to all G6DG production models (VCA Type Approval #VCA/EMS/5679).
Power Ratings: Measured under SAE J1349 standards. Full output requires 95 RON fuel (Ford TIS Doc. F16015).
Ford Technical Information System (TIS): Docs F15680, F16230, SIB 14S06
VCA Type Approval Database (VCA/EMS/5679)
SAE International: J1349 Engine Power Certification Standards
The Ford G6DG was used across Ford's C1/CD4 platforms with transverse mounting and remained exclusive to Ford. This engine received platform-specific adaptations-shorter intake manifolds in the Focus ST and revised cooling paths in the Mondeo-and from 2014 the facelifted Focus Mk3.5 adopted revised timing components, 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 timing cover (Ford TIS F15890). The 8th VIN digit indicates engine type ('D' for 2.0L EcoBoost). Pre-2014 models have silver valve covers with black plastic timing covers; post-2014 units use black valve covers. Critical differentiation from later units: Original G6DG uses Bosch HDEV5 injectors with square electrical connectors, while post-2014 variants use trapezoidal connectors. Service parts require production date verification - timing kits for engines before 09/2013 are incompatible with later units due to guide rail redesign (Ford SIB 15 04 18).
The G6DG's primary reliability risk is timing chain wear on early builds, with elevated incidence in urban stop-start use. Internal Ford quality reports from 2015 indicated a notable share of pre-2014 engines requiring chain repair before 150,000 km, while UK DVSA records link a significant portion of emissions-related MOT failures to EGR clogging in city-driven vehicles. Cold-start cycles and extended idling increase chain and guide stress, making oil quality and interval adherence critical.
Analysis derived from Ford technical bulletins (2012-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD G6DG.
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Regulation (EC) No 715/2007
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