The Ford CHBB is a 1,497 cc, inline — three turbocharged petrol engine produced between 2018 and 2023. It forms part of Ford's EcoBoost family, featuring direct fuel injection, twin — independent variable cam timing (Ti — VCT), and an integrated exhaust manifold. In standard tune, it delivers 103 kW (140 PS) and 240 Nm of torque, offering a balance of responsiveness and efficiency for compact and subcompact applications.
Fitted to models such as the Fiesta ST, Focus, and Pum…
Production years 2018–2020 meet Euro 6d-TEMP standards; 2021–2023 models comply with Euro 6d (VCA UK Type Approval #VCA/EMS/5678).
The Ford CHBB is a 1,497 cc inline-three turbo-petrol engineered for compact and subcompact models (2018–2023). It combines direct fuel injection with twin-independent variable cam timing (Ti-VCT) to deliver responsive mid-range torque and improved fuel efficiency. Designed to meet Euro 6d-TEMP (later Euro 6d) standards, it balances performance with emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,497 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.5 mm × 90.0 mm | |
Power output | 103 kW (140 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 6d-TEMP (2018–2020); Euro 6d (2021–2023) | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Garrett GT1246 variable-nozzle turbo (VNT) | |
Timing system | Chain (front-mounted; wear-prone under poor maintenance) | |
Oil type | Ford WSS-M2C948-B (5W-30) | |
Dry weight | 118 kg |
The Ford CHBB was used across Ford's CD4xx and C2 platforms with transverse mounting. This engine received platform-specific adaptations-shortened intake manifolds in the Fiesta ST and revised cooling paths in the Puma-and from 2020 the facelifted Focus adopted the CHBB variant with enhanced EGR calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The CHBB's primary reliability risk is timing chain wear on early builds, with elevated incidence in urban stop-start use. Internal Ford quality reports from 2019 indicated a notable share of pre-2020 engines requiring chain inspection before 120,000 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 (2018–2021) and UK DVSA failure statistics (2019–2023). 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 CHBB delivers responsive performance and good efficiency, but early models (2018–2019) had reliability concerns, particularly timing chain wear. Later revisions (post-2020) improved oil delivery and tensioner design, enhancing durability. Regular servicing and using correct oil (5W-30 Ford WSS-M2C948-B) significantly improve long-term reliability.
The most documented issues are timing chain wear, VNT turbo actuator sticking, and intake/EGR carbon buildup. Additional concerns include oil leaks from aged gaskets and occasional high-pressure fuel pump faults. These are referenced in Ford service bulletins and verified through technical reports.
The CHBB 1.5L EcoBoost is used in the Fiesta ST (MK8), Focus (MK4), and Puma. It was introduced in 2018 and continued through 2023 with revisions. Each model has specific tuning and ancillary configurations, particularly in the ST and Puma variants.
Yes. The CHBB is popular for tuning. ECU remaps typically yield +30–50 kW safely on stage 1, as the stock internals handle increased torque. Supporting modifications (intercooler, exhaust) allow higher gains. Tuning is common on Fiesta ST and Focus models, but should be paired with maintenance diligence.
In a Focus 1.5L EcoBoost, combined consumption is ~6.8 L/100km (~42 mpg UK). The Fiesta ST averages ~7.2 L/100km (~39 mpg UK). Real-world figures vary by driving style, but expect 35–45 mpg UK in mixed conditions. Turbo efficiency contributes to strong highway economy.
Yes. The CHBB is an interference engine. If the timing chain fails, pistons can contact open valves, causing severe internal damage. Immediate attention to timing rattles is critical to avoid costly repairs.
Ford specifies 5W-30 synthetic oil meeting WSS-M2C948-B standard. Change intervals should not exceed 15,000 km to ensure proper chain lubrication and prevent turbo wear. Using incorrect oil increases risk of timing system failure.
Comprehensive technical documentation and regulatory references
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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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