The Ford HHDB is a 1,998 cc, inline-four turbocharged petrol engine produced between 2020 and 2024. It belongs to Ford's EcoBoost engine family, designed for high efficiency and responsive performance in compact and mid-size applications. Featuring dual overhead camshafts (DOHC), direct fuel injection, and Ti-VCT (Twin-independent Variable Cam Timing), it produces 147 kW (200 PS) and 320 Nm of torque, with a focus on strong mid-range power delivery and drivability.
Fitted to models such as the Focus ST, Puma ST, and Kuga ST-Line, the HHDB was engineered for sporty driving dynamics and enhanced throttle response. It meets Euro 6d emissions standards through integrated exhaust manifold design, cooled EGR, and particulate filter technology, offering a balance of performance and compliance for European markets.
One documented concern is carbon buildup on intake valves, particularly in stop-start urban driving cycles. This issue, referenced in Ford Service Action 21M08, arises due to reliance on direct injection without port injection, leading to deposit accumulation over time. Ford recommends periodic induction cleaning to maintain performance and idle stability.
Production years 2020–2024 meet Euro 6d (Real Driving Emissions Stage 2) emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Ford HHDB is a 1,998 cc inline-four turbocharged petrol engine engineered for performance-oriented platforms (2020–2024). It combines direct fuel injection with a high-pressure turbocharger and cooled EGR system to deliver strong mid-range torque and reduced emissions. Designed to meet Euro 6d (RDE2) standards, it balances sporty character with everyday usability.
| 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 | 147 kW (200 PS) @ 5,500 rpm | |
| Torque | 320 Nm @ 2,500–4,000 rpm | |
| Fuel system | Direct fuel injection (GDi) | |
| Emissions standard | Euro 6d (RDE2) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single-scroll turbo with integrated exhaust manifold | |
| Timing system | Chain-driven (single-row, front-mounted) | |
| Oil type | Ford WSS-M2C949-B | |
| Dry weight | 142 kg |
The turbocharged design delivers strong low- and mid-range torque ideal for spirited driving but requires attention to intake valve cleanliness due to direct injection only. Ford WSS-M2C949-B (5W-30) oil is essential for turbo and timing chain longevity. Regular induction service every 40,000 km helps prevent carbon buildup affecting idle quality. The engine's lower compression ratio is optimized for forced induction and demands premium unleaded fuel (95 RON minimum) to prevent knock and maintain performance. No major revisions occurred during production; all units use the same turbo and valve train design per Ford TIS B37805.
Oil Specs: Requires Ford WSS-M2C949-B specification (Ford SIB 21M08). Supersedes ACEA C2 and API SN Plus.
Emissions: Euro 6d (RDE2) certification applies to all production years 2020–2024 (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under ECE R85 standards. Output consistent across all markets with no performance tuning variants.
Ford Technical Information System (TIS): Docs B37805, B38121, SIB 21M08
VCA Type Approval Database (VCA/EMS/7890)
ISO 8854: Road vehicles — Light and heavy duty engines — Test code for gaseous emissions
The Ford HHDB was used across Ford's C2 platform with transverse mounting and shared architecture with Volvo for global scalability. This engine received platform-specific adaptations-shorter intake manifolds in the Puma ST and revised engine mounts in the Kuga ST-Line-and from 2022 the facelifted Focus ST adopted revised ECU calibrations for improved throttle response, creating minor software compatibility limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side engine block near the transmission bellhousing (Ford TIS B38212). The 8th VIN digit indicates engine type ('Z' for 2.0L turbocharged petrol). Pre-2022 models have silver valve covers with black plastic timing covers; post-2022 units use black valve covers. Critical differentiation from non-turbo FYJC: HHDB has a turbocharger, intercooler, and direct injection fuel rail. Service parts require calibration verification—ECUs from pre-2022 models are not compatible with post-facelift Focus ST due to throttle mapping changes (Ford SIB 22C14).
The HHDB's primary reliability risk is intake valve carbon buildup, with elevated incidence in city-driven vehicles. Internal Ford quality reports from 2022 indicated over 19% of high-mileage units required induction service before 100,000 km, while UK DVSA records show increased idle instability complaints in stop-start traffic. Extended service intervals and short-trip driving exacerbate deposit formation, making scheduled maintenance and fuel quality critical.
Analysis derived from Ford technical bulletins (2020-2024) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD HHDB.
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Regulation (EC) No 715/2007
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