The Ford CDB is a 1,998 cc, inline — four turbocharged petrol engine produced between 2019 and 2024 as part of the EcoBoost Gen 3 family. It features direct fuel injection, a twin — scroll turbocharger, and dual overhead camshafts (DOHC) with Ti — VCT, delivering 184 kW (250 PS) and 390 Nm of torque. Designed for high — performance applications, it provides strong mid — range power ideal for sporty driving dynamics.
Fitted to performance — oriented models such as the Focus ST (Mk…
Production years 2019–2020 meet Euro 6d-TEMP standards; 2021–2024 models comply with Euro 6d .
The Ford CDB is a 1,998 cc inline-four turbocharged petrol engine engineered for performance compact Ford models (2019–2024). It combines high-pressure direct injection with a twin-scroll turbocharger to deliver strong mid-range torque and rapid throttle response. Designed to meet Euro 6d emissions standards, it balances spirited driving dynamics with real-world efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 87.5 mm × 83.1 mm | |
Power output | 184 kW (250 PS) @ 5,500 rpm | |
Torque | 390 Nm @ 2,500–4,000 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d-TEMP (2019–2020); Euro 6d (2021–2024) | |
Compression ratio | 9.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Honeywell twin-scroll turbo with integrated exhaust manifold | |
Timing system | Dual roller chain (primary and secondary) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 135 kg |
The Ford CDB was used across Ford's C2 platform with transverse mounting and front-wheel drive layout. This engine received platform-specific adaptations-integrated exhaust manifolds in the Focus ST and enhanced cooling in the Puma ST-and from 2021 the updated calibration and piston revisions in facelifted models created partial interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The CDB engine offers strong performance and responsiveness, but early models (2019–2020) faced LSPI-related piston damage. Post-2021 revisions significantly improved durability. When maintained with correct oil (5W-30 WSS-M2C949-A) and driven with regular highway runs, these engines can reliably exceed 150,000 km.
Key issues include low-speed pre-ignition (LSPI) in early units, GPF clogging due to short trips, turbo wastegate actuator sticking, and coolant leaks from the integrated exhaust manifold. These are documented in Ford service bulletins and addressed through component revisions and maintenance protocols.
This engine powers the Focus ST (250 PS) and Puma ST (200 PS), both performance-oriented variants based on Ford's C2 platform. It replaced the Gen 2 EcoBoost in hot hatch applications from 2019 onward, meeting Euro 6d emissions standards.
Aftermarket ECU tuning is common on the CDB platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In a Focus ST (250 PS), combined consumption is ~7.8 L/100km (~36 mpg UK). Real-world figures vary: urban driving may see 9–10 L/100km, while highway cruising can achieve 6.5 L/100km. GPF regeneration cycles temporarily increase fuel use.
Yes. Like most modern Fords, it is an interference engine. If the timing chain fails or jumps, pistons can contact valves, resulting in catastrophic internal damage. Regular inspection of chain tensioners and guides is essential.
Ford specifies SAE 5W-30 oil meeting WSS-M2C949-A standard. This low-SAPS formulation protects turbo bearings and GPF systems. Change oil every 15,000 km or annually, and always use fuel with RON 95 minimum (RON 98 recommended for high-output variants).
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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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