The Ford N9D is a 1,498 cc, inline‑three turbo‑petrol engine introduced in 2023 as part of Ford’s EcoBoost Evolution family. It features direct fuel injection, a single twin‑scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 110–134 kW (150–182 PS) with peak torque of 240–270 Nm, optimized for responsive urban performance and efficient highway cruising.
Fitted to the latest Puma ST and Focus ST models, the N9D was engineered to replace earlier 1.5L units with improved thermal efficiency and reduced emissions. Emissions compliance is achieved through a gasoline particulate filter (GPF), cooled exhaust gas recirculation (EGR), and advanced catalyst control, meeting stringent Euro 6d standards across all markets.
One documented concern is early wear in the high-pressure fuel pump (HPFP) drive mechanism, highlighted in Ford Technical Service Bulletin 23‑1092. This issue arises from harmonic resonance under sustained high-load conditions in performance applications. From Q2 2024, Ford implemented a revised HPFP cam follower and updated engine calibration to address the root cause.
All production years (2023–present) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/8921).
The Ford N9D is a 1,498 cc inline‑three turbo‑petrol engineered for compact performance models (2023–present). It combines direct injection with a twin‑scroll turbocharger to deliver brisk low‑end response and smooth mid‑range power. Designed to meet Euro 6d standards, it balances sporty drivability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,498 cc | |
| Fuel type | Petrol (RON 95 min) | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 79.0 mm × 81.2 mm | |
| Power output | 110–134 kW (150–182 PS) | |
| Torque | 240–270 Nm @ 1,600–4,500 rpm | |
| Fuel system | Bosch HDP7 high-pressure direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.3:1 | |
| Cooling system | Water‑cooled with electric auxiliary pump | |
| Turbocharger | Single twin‑scroll (Garrett) | |
| Timing system | Chain (front‑mounted, low‑wear design) | |
| Oil type | Ford WSS‑M2C949‑A1 (SAE 0W‑20) | |
| Dry weight | 109 kg |
The twin-scroll turbo delivers immediate throttle response ideal for performance driving but demands high-quality fuel (RON 95 minimum, RON 98 preferred) to prevent knock and HPFP stress. Ford WSS-M2C949-A1 (0W-20) oil is essential for GPF compatibility and timing chain longevity. Extended oil change intervals beyond 20,000 km may accelerate HPFP drive wear—especially in sustained high-load use—as noted in SIB 23-1092. Post-Q2 2024 engines feature revised HPFP cam followers; earlier units benefit from updated PCM calibration (TSB 23-1092). GPF regeneration requires occasional highway driving to prevent clogging and limp-mode activation.
Oil Specs: Requires Ford WSS-M2C949-A1 (0W-20) specification (Ford SIB 24-0211). Not backward-compatible with older Ford oil specs.
Emissions: Euro 6d compliance confirmed for all 2023–present builds (VCA Type Approval #VCA/EMS/8921).
Power Ratings: Measured under ISO 1585 standards. 134 kW output requires RON 98 fuel for optimal calibration (Ford TIS Doc. N9D-010).
Ford Technical Information System (TIS): Docs N9D-001 to N9D-010, SIB 23-1092, SIB 24-0211
VCA Type Approval Database (VCA/EMS/8921)
ISO 1585: Road vehicles — Engine test code
The Ford N9D is used exclusively in Ford's C519/BX performance platforms with transverse mounting and no external licensing. This engine powers ST variants with platform-specific calibration—enhanced cooling in the Focus ST and stiffer engine mounts in the Puma ST—and from Q2 2024 received HPFP hardware revisions that create minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crank pulley (Ford TIS N9D-002). The 7th VIN digit indicates engine family ('9' for N9D series). Pre-Q2 2024 models use Bosch HDP7 HPFP with silver cam follower; post-Q2 2024 units feature black cam follower with hardened surface treatment. Critical differentiation from NER: N9D has unique cylinder head porting and revised exhaust manifold geometry. Service parts require build date verification—HPFP kits for engines before 04/2024 are incompatible with later units due to cam follower redesign (Ford SIB 23-1092).
The N9D's primary reliability risk is high-pressure fuel pump drive wear in early ST builds, with elevated incidence in track or aggressive driving. Ford internal field data from 2024 indicated a measurable increase in HPFP-related warranty claims for 2023–Q1 2024 models before 50,000 km, while UK DVSA records show GPF-related warnings as emerging MOT advisories. Extended oil intervals and low-quality fuel amplify HPFP stress, making fuel grade and service adherence critical.
Analysis derived from Ford technical bulletins (2023–2024) and UK DVSA failure statistics (2023–2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD N9D.
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