The Ford LR1 is a 1,499 cc, inline-four naturally aspirated petrol engine produced between 2014 and 2020. It forms part of Ford's Sigma engine family, featuring multi-point fuel injection (MPFI), twin independent variable cam timing (Ti-VCT), and an aluminium block and head for reduced weight. In standard tune, it delivers 67 kW (91 PS) with peak torque of 125 Nm, positioned as an entry-level powertrain for urban and economy-focused applications.
Fitted to models such as the Fiesta (MK7), Focus (MK3), and EcoSport, the LR1 was engineered for low running costs and ease of maintenance. Its design prioritizes fuel efficiency and emissions compliance through a three-way catalytic converter and closed-loop lambda control. With a focus on reliability and simplicity, it served as a core engine in Ford’s European and emerging market compact lineup during its production run.
One documented concern is premature wear of the timing belt tensioner, noted in Ford Service Information Bulletin 15S09. This issue arises from inadequate spring preload in early tensioner assemblies, particularly under sustained high-temperature operation. From 2017, Ford introduced a revised tensioner with improved spring geometry and updated ECU calibration to reduce thermal stress, enhancing long-term reliability in later production units.
Production years 2014–2016 meet Euro 5 standards; 2017–2020 models comply with Euro 6b (VCA UK Type Approval #VCA/EMS/3456).
The Ford LR1 is a 1,499 cc inline-four naturally aspirated petrol engine designed for compact and subcompact models (2014–2020). It combines multi-point fuel injection with twin-independent variable cam timing (Ti-VCT) to deliver smooth power delivery and improved fuel economy. Designed to meet Euro 6b standards, it balances cost-effective ownership with urban drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,499 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 79.0 mm × 76.6 mm | |
| Power output | 67 kW (91 PS) @ 6,300 rpm | |
| Torque | 125 Nm @ 4,250 rpm | |
| Fuel system | Bosch ME7.9.11 multi-point injection | |
| Emissions standard | Euro 5 (pre-2017); Euro 6b (2017–2020) | |
| Compression ratio | 11.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (service interval: 120,000 km or 6 years) | |
| Oil type | Ford WSS-M2C913-C (5W-20) | |
| Dry weight | 109 kg |
The naturally aspirated design provides linear throttle response ideal for city driving but requires strict adherence to the 120,000 km or 6-year timing belt service interval to prevent catastrophic interference engine failure. Ford WSS-M2C913-C (5W-20) oil is essential due to its low viscosity formulation protecting the Ti-VCT actuators and reducing internal friction. Extended idling and short trips accelerate carbon buildup on intake valves and MAF sensor. The Bosch ME7.9.11 system requires minimum 95 RON petrol to maintain injector cleanliness. Post-2017 models feature updated tensioner hardware; pre-2017 units should be inspected per Ford SIB 15S09. Three-way catalytic converter longevity depends on consistent warm-up cycles.
Oil Specs: Requires Ford WSS-M2C913-C (5W-20) specification (Ford SIB 15 05 08). Compatible with ACEA A5/B5 standards.
Emissions: Euro 5 certification applies to pre-2017 models only (VCA Type Approval #VCA/EMS/3456). 2017–2020 units meet Euro 6b with enhanced on-board diagnostics.
Power Ratings: Measured under SAE J1349 standards. 67 kW output requires 95 RON fuel (Ford TIS Doc. B17001).
Ford Technical Information System (TIS): Docs B17240, SIB 15S09
VCA Type Approval Database (VCA/EMS/3456)
SAE International: J1349 Engine Power Certification Standards
The Ford LR1 was used across Ford's C170/C2 platforms with transverse mounting and shared design elements with Mazda for global compact applications. This engine received platform-specific adaptations-shorter intake manifolds in the Fiesta and revised exhaust routing in the Focus-and from 2017 the facelifted EcoSport adopted the LR1 with enhanced ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side engine block near the exhaust manifold (Ford TIS B17300). The 8th VIN digit indicates engine type ('H' for 1.5L Sigma). Pre-2017 models have black intake manifolds with silver valve covers; post-2017 variants use all-black valve covers. Critical differentiation from turbo variants: LR1 lacks turbocharger and uses port injection; EcoBoost versions feature turbo and direct injection. Service parts require production date verification - timing tensioners before 03/2017 are incompatible with later units due to internal redesign (Ford SIB 15S09).
The LR1's primary reliability risk is timing belt tensioner failure, with elevated incidence in high-temperature environments. Internal Ford quality reports from 2015 indicated a notable share of pre-2017 engines requiring tensioner service before 100,000 km, while UK DVSA records link a significant portion of emissions-related MOT failures to lambda sensor degradation in frequently cold-driven vehicles. Short warm-up cycles and infrequent servicing increase belt and sensor stress, making interval adherence critical.
Analysis derived from Ford technical bulletins (2014–2019) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD LR1.
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