The Ford CGBB is a 1,596 cc, inline — three turbocharged petrol engine produced between 2010 and 2018. It forms part of Ford's EcoBoost engine family, featuring direct fuel injection, twin — independent variable cam timing (Ti — VCT), and an intercooled turbocharger. In standard tune it delivers 138 kW (187 PS) and 240 Nm of torque, providing a balance of responsive performance and fuel efficiency for compact and mid — size applications.
Fitted to models such as the Focus ST,…
Production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Ford CGBB is a 1,596 cc inline-three turbocharged petrol engineered for performance-oriented compact models (2010-2018). It combines direct fuel injection with twin-independent variable cam timing (Ti-VCT) and an intercooled turbocharger to deliver responsive throttle characteristics and strong mid-range torque. Designed to meet Euro 5 standards, it balances sporty performance with improved fuel efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,596 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged with intercooler | |
Bore × stroke | 79.0 mm × 81.4 mm | |
Power output | 138 kW (187 PS) @ 6,000 rpm | |
Torque | 240 Nm @ 1,600–5,000 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 | IHI IS20G with electronic wastegate | |
Timing system | Timing chain (single-row, front-mounted) | |
Oil type | Ford WSS-M2C946-B (5W-30) | |
Dry weight | 123 kg |
The Ford CGBB was used across Ford's C1/C2 platforms with transverse mounting. This engine received platform-specific adaptations-shorter intake manifolds in the Fiesta and reinforced engine mounts in the Focus ST-and from 2015 the facelifted Focus Mk3 models adopted revised turbo cooling protocols, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CGBB's primary reliability risk is turbocharger bearing wear on early builds, with elevated incidence in high-performance applications. Internal Ford quality reports from 2016 noted a significant number of pre-2015 units requiring turbo service before 150,000 km, while UK DVSA records show increased catalytic converter failures in urban-driven examples. Extended idling and use of non-premium fuel increase deposit formation, making oil quality and fuel specification adherence critical.
Analysis derived from Ford technical bulletins (2010-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CGBB delivers strong performance and efficiency, but early models (2010-2014) had turbocharger reliability concerns. Later revisions (post-2015) improved oil feed design, so well-maintained examples can exceed 200,000 km. Regular servicing and using Ford WSS-M2C946-B oil (5W-30) are essential for longevity.
The most common issues are turbocharger bearing wear, high-pressure fuel pump (HDEV5) failure, EGR/intake coking, and timing chain tensioner rattle. These are documented in Ford service bulletins, particularly SIB 15B07 and SIB 15 03 08, and are often linked to maintenance neglect.
The CGBB was used in performance and mainstream Ford models including the Focus ST (2010-2018), Fiesta ST (2013-2017), and C-MAX (2010-2015). It was exclusively available in European and North American markets with transverse front-wheel-drive layouts.
Yes. The CGBB responds well to ECU remapping, with stage 1 tunes safely achieving +30-40 kW. The stock turbo and internals support moderate increases, but higher power levels require upgraded intercoolers and fuel systems. Tuning should be performed by specialists familiar with EcoBoost fueling and cooling requirements.
In a Focus ST (138 kW), combined consumption is ~7.2 L/100 km (~39 mpg UK). Highway driving can achieve ~6.0 L/100 km (~47 mpg UK). Real-world figures vary with driving style, but expect 35-45 mpg UK in mixed conditions. Use of RON 95+ fuel is required for optimal efficiency.
Yes. The CGBB is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal engine damage. Chain maintenance and oil health are critical; any tensioner noise should be investigated immediately.
Ford specifies WSS-M2C946-B (5W-30) synthetic oil. This low-SAPS formulation is essential for turbocharger and HDEV5 fuel pump protection. Oil changes should occur every 15,000 km or annually, with strict adherence to specification to prevent premature wear.
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