The Ford E5SA is a 2,499 cc, inline — five petrol engine produced between 2015 and 2020. It belongs to the EcoBoost family, featuring direct fuel injection, turbocharging, and twin — independent variable cam timing (Ti — VCT). In standard tune, it delivers 213 kW (290 PS) and 440 Nm of torque, offering strong mid — range performance and improved efficiency over naturally aspirated predecessors.
Fitted to models such as the Focus RS (Mk3), the E5SA engine was engineered for hi…
Production years 2015–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/8765).
The Ford E5SA is a 2,499 cc inline-five turbocharged petrol engine engineered for high-performance applications (2015–2020). It combines high-pressure direct injection with a low-inertia turbocharger and Ti-VCT to deliver strong mid-range pull. Designed to meet Euro 6 emissions, it balances sporty character with regulated efficiency in longitudinal AWD layouts.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,499 cc | |
Fuel type | Petrol | |
Configuration | Inline-5, DOHC, 20-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 87.5 mm × 82.8 mm | |
Power output | 213 kW (290 PS) @ 6,000 rpm | |
Torque | 440 Nm @ 2,500–4,500 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 250 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 9.3:1 | |
Cooling system | Water-cooled | |
Turbocharger | Garrett GT3544V variable-vane turbo | |
Timing system | Chain-driven (integrated oiling) | |
Oil type | Ford WSS-M2C946-C2 (5W-30) | |
Dry weight | 168 kg |
The Ford E5SA was used exclusively in the Ford C1 platform with longitudinal mounting and high-performance tuning. This engine received platform-specific adaptations-reinforced oil pan in the Focus RS and revised exhaust manifolds-and from 2017 the facelifted Focus RS Mk3.5 adopted upgraded turbo oil feed lines, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The E5SA's primary reliability risk is turbocharger oil feed line degradation under sustained high boost, with elevated incidence in track-driven environments. Internal Ford field reports from 2018 indicated a significant number of pre-2017 units required oil line replacement before 80,000 km, while UK DVSA records show increased turbo failures linked to oil starvation. Frequent aggressive driving and poor maintenance amplify thermal stress, making periodic oil line inspection critical.
Analysis derived from Ford technical bulletins (2015-2020) and UK DVSA failure statistics (2017-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The E5SA offers exceptional performance and refinement, but pre-2017 models are prone to turbo oil feed line degradation. Post-2017 revisions resolved most of these issues. With regular maintenance, timely oil changes using Ford WSS-M2C946-C2, and use of quality fuel, the engine can reliably exceed 150,000 km. Turbo and fuel pump longevity depend heavily on operating conditions and service adherence.
Key issues include turbo oil feed line degradation (especially pre-2017), turbo wastegate sticking, high-pressure fuel pump wear, and elevated oil consumption. These are documented in Ford service bulletins, particularly SIB 17B19 for oil line failures. Carbon buildup on intake valves is also common due to direct injection design.
The E5SA engine was used exclusively in the Ford Focus RS Mk3 (2015–2020). It was designated as the 2.5L EcoBoost (290 PS) and paired with a 6-speed manual transmission and advanced AWD system. All applications are longitudinal, front-engine, all-wheel drive with performance suspension tuning.
Yes, the E5SA responds exceptionally well to ECU remapping. Stage 1 tunes typically yield +40–60 kW safely, as the stock turbo and internals tolerate moderate over-boost. However, exceeding 350 PS risks triggering over-boost protection or accelerating wear in the wastegate and fuel system. Supporting mods like intercooler, oil feed line, and turbo upgrades are recommended for higher stages.
In a Focus RS 2.5 EcoBoost, combined consumption is approximately 9.8 L/100km (28.8 mpg UK). Real-world figures vary: city driving may see 13.5 L/100km (20.9 mpg), while highway cruising can achieve 7.5 L/100km (37.7 mpg). Aggressive driving reduces efficiency significantly due to turbo boost and fuel enrichment.
Yes, the E5SA is an interference engine. If the timing chain fails or skips, piston-to-valve contact will occur, resulting in severe internal damage. While chain life is generally long, any abnormal noise from the front cover should prompt immediate inspection to prevent catastrophic failure.
Ford specifies 5W-30 synthetic oil meeting WSS-M2C946-C2 standard. This low-SAPS formulation is critical for turbocharger and direct injector protection. Oil changes should occur every 15,000 km or annually, whichever comes first, to maintain optimal engine cleanliness and longevity.
Comprehensive technical documentation and regulatory references
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GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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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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