The Ford RFK is a 1,499 cc, inline‑three turbocharged petrol engine produced between 2015 and 2020. It features direct fuel injection, a single twin — scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 118–134 kW (160–182 PS) with peak torque of 240–270 Nm, enabling responsive urban drivability and efficient highway cruising.
Fitted to models such as the Focus Mk3 ST — Line, C — MAX, and Grand C — MAX, the RFK was engineered for compact perf…
Production years 2015–2017 meet Euro 6b standards; 2018–2020 models comply with Euro 6d-TEMP depending on market (VCA UK Type Approval #VCA/EMS/7743).
The Ford RFK is a 1,499 cc inline‑three turbocharged petrol engineered for compact and MPV applications (2015–2020). It combines direct injection with a twin‑scroll turbocharger to deliver strong low-end torque and refined high-rpm operation. Designed to meet Euro 6b and Euro 6d-TEMP standards, it integrates GPF and advanced EGR for emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,499 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.0 mm × 94.3 mm | |
Power output | 118–134 kW (160–182 PS) | |
Torque | 240–270 Nm @ 1,600–4,000 rpm | |
Fuel system | Bosch HDP6 high-pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6b (2015–2017); Euro 6d-TEMP (2018–2020) | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Single twin‑scroll turbo (Honeywell Garrett) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | Ford WSS-M2C949-A (SAE 0W‑20) | |
Dry weight | 114 kg |
The Ford RFK was used across Ford's C‑Car and MPV platforms with transverse mounting and exclusive to European and Asia-Pacific markets. This engine received platform-specific calibrations—revised ECU maps in the Grand C-MAX for load compensation and modified cooling in the Focus ST-Line for urban duty cycles—and from 2018 the C-MAX received updated engine calibration for WLTP compliance, creating minor ECU interchange limits. All adaptations are documented in OEM technical bulletins.
The RFK's primary reliability risk is high-pressure fuel pump (HPFP) degradation under aggressive or frequent high-load use, with elevated incidence in modified or frequently redlined engines. Ford internal field data from 2019 noted a measurable uptick in HPFP replacements before 80,000 km in performance-oriented variants, while UK DVSA records show low emissions-related failures due to robust GPF/EGR design. Extended high-load operation without cooldown increases thermal stress, making post-drive idle cooldown and correct oil specification critical.
Analysis derived from Ford technical bulletins (2015–2020) and UK DVSA failure statistics (2017–2024). Repair procedures should follow manufacturer guidelines.
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The RFK is generally robust when maintained properly, though early units (2015–2019) had HPFP durability concerns under hard use. Later revisions improved fuel pump life. Using correct 0W-20 oil and allowing cooldown after spirited driving greatly enhances longevity. Most issues arise from neglect or aggressive tuning.
Top issues include high-pressure fuel pump wear, GPF clogging from short trips, cylinder deactivation solenoid faults (on 182 PS variants), and wastegate rattle in the turbo. These are documented in Ford SIBs and TIS updates. Regular oil changes and proper driving habits mitigate most risks.
The RFK powers the Focus Mk3 ST-Line, C-MAX, and Grand C-MAX (1.5L EcoBoost variants) from 2015–2020. It’s exclusive to European and select Asia-Pacific markets and features cylinder deactivation (on higher-output variants) and GPF to meet Euro 6b and Euro 6d-TEMP standards.
Yes. Stage 1 ECU remaps safely yield +15–25 kW using stock internals. The engine’s forged internals and robust turbo support moderate tuning. However, aggressive tuning without HPFP and intercooler upgrades increases failure risk, especially on pre-2019 engines.
In a Focus ST-Line 1.5 EcoBoost 182 PS, expect ~7.6 L/100km (city) and ~5.3 L/100km (highway), or ~44 mpg UK combined. Real-world figures range 38–48 mpg (UK) depending on driving style. Cylinder deactivation improves light-load efficiency but requires longer drives for full benefit.
Yes. The RFK is an interference engine. Timing chain failure—though rare due to its front-mounted, maintenance-free design—could cause piston-to-valve contact and severe damage. No timing belt replacements are needed, but oil quality remains critical for chain life.
Ford specifies SAE 0W-20 oil meeting WSS-M2C949-A standard. This low-viscosity oil supports cylinder deactivation and turbo protection. Using incorrect oil can cause solenoid faults, increased wear, and void warranty on HPFP-related claims.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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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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