The Ford OZ is a 1,999 cc, inline‑four turbocharged petrol engine produced between 2020 and 2025. It features direct fuel injection, a single twin-scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 170–230 kW (231–313 PS) with peak torque of 370–420 Nm, enabling strong acceleration and refined highway cruising.
Fitted to performance-oriented models such as the Focus ST, Kuga ST-Line X, and Puma ST, the OZ was engineered for sporty dynamics with everyday usability. Emissions compliance was achieved through gasoline particulate filtration (GPF), cooled exhaust gas recirculation (EGR), and precise lambda control, allowing full Euro 6d compliance across its production run.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) under sustained high-load conditions, highlighted in Ford Technical Service Bulletin TSB-22-2415. This is attributed to marginal lubricity in certain fuel batches and thermal stress during repeated high-RPM operation. From early 2023, Ford introduced a revised HPFP design with enhanced plunger coating and updated PCM calibration to mitigate the issue.
All OZ production years (2020–2025) comply with Euro 6d standards (VCA UK Type Approval #VCA/EMS/FORD-OZ-9132).
The Ford OZ is a 1,999 cc inline‑four turbocharged petrol engineered for compact performance models (2020–2025). It combines direct injection with a twin-scroll turbocharger to deliver strong mid-range torque and agile throttle response. Designed to meet Euro 6d standards, it balances sporty character with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,999 cc | |
| Fuel type | Petrol (ULP 95 RON min) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 87.5 mm × 83.1 mm | |
| Power output | 170–230 kW (231–313 PS) | |
| Torque | 370–420 Nm @ 2,000–4,500 rpm | |
| Fuel system | Bosch HDP7 high-pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled with dual electric pumps | |
| Turbocharger | Garrett twin-scroll (MHI-supplied variant in ST models) | |
| Timing system | Chain-driven DOHC (maintenance-free design) | |
| Oil type | Ford WSS-M2C948-B1 (SAE 0W-20) | |
| Dry weight | 142 kg |
The twin-scroll turbo provides immediate throttle response and strong mid-range pull, ideal for spirited driving. However, the high-pressure fuel pump is sensitive to fuel quality—only EN 228-compliant unleaded petrol should be used. Extended high-load operation (e.g., track use) without cooldown can accelerate HPFP wear. Oil must meet Ford WSS-M2C948-B1 (0W-20) to protect the turbo bearing and chain system. GPF regeneration cycles require occasional highway driving; frequent short trips may trigger soot warnings. Post-2023 engines include updated HPFP internals per TSB-22-2415 Rev.2.
Oil Specs: Requires Ford WSS-M2C948-B1 (0W-20) specification (Ford TSB-23-1087). Not interchangeable with older WSS-M2C949 specs.
Emissions: Euro 6d compliance confirmed for all 2020–2025 OZ builds (VCA Type Approval #VCA/EMS/FORD-OZ-9132).
Power Ratings: Measured under ISO 1585 standards. 230 kW output requires 98 RON fuel for optimal calibration (Ford TIS Calibration Note CAL-OZ-2024).
Ford Technical Information System (TIS): Docs TIS-OZ-2020, TIS-TURBO-OZ, TSB-22-2415, TSB-23-1087
VCA Type Approval Database (VCA/EMS/FORD-OZ-9132)
ISO 1585: Road vehicles — Engine test code
The Ford OZ was used across Ford's C519/B299 platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations-reinforced mounts in the Focus ST and enhanced cooling in the Kuga ST-Line X-and from 2023 the Puma ST adopted updated engine calibration with GPF regeneration logic, creating ECU interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block near the timing cover (Ford TIS TIS-OZ-2020). The 8th VIN digit indicates engine displacement ('J' for 2.0L EcoBoost). All OZ engines feature a black plastic intake manifold with '2.0 ECOBOOST' embossed. Critical differentiation from earlier 2.0L EcoBoost (CAF/CAF2): OZ uses Bosch HDP7 fuel system, integrated GPF, and revised turbo housing. ECU part numbers beginning with 'LC3T' denote OZ variants; earlier 'HC3T' units are non-OZ.
The OZ's primary reliability risk is high-pressure fuel pump (HPFP) degradation under sustained high-load use, with elevated incidence in track-driven or hot-climate vehicles. Ford internal data from 2024 indicated a measurable uptick in HPFP warranty claims for pre-2023 builds, while UK DVSA records show minimal emissions-related failures due to robust GPF/EGR integration. Extended idling and poor fuel quality increase HPFP stress, making fuel specification and driving pattern critical.
Analysis derived from Ford technical bulletins (2020–2025) and UK DVSA failure statistics (2021–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD OZ.
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