The Ford QYBA is a 1,499 cc, inline‑three turbo‑petrol engine produced between 2015 and 2022. It features gasoline direct injection, a single twin‑scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivered 103 kW (140 PS) and 240 Nm of torque, offering responsive urban performance with compact packaging.
Fitted to models such as the Focus (MK4), Puma, and Fiesta (facelifted 2017+), the QYBA was engineered for efficiency-focused drivers seeking punchy low-end torque and reduced emissions. Emissions compliance was achieved through precise injection control, cooled exhaust gas recirculation (EGR), and a close-coupled three-way catalytic converter, meeting Euro 6b standards across all production years.
One documented concern is premature wear of the timing belt tensioner pulley, highlighted in Ford Technical Service Bulletin TSB‑18‑2231. This issue arises from inconsistent material hardness in early‑batch pulleys under thermal cycling. From mid‑2019, Ford implemented a revised tensioner design with improved metallurgy to address the failure mode.
All production years (2015–2022) meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/8842).
The Ford QYBA is a 1,499 cc inline‑three turbo‑petrol engineered for compact hatchbacks and crossovers (2015–2022). It combines gasoline direct injection with a twin‑scroll turbocharger to deliver brisk low‑rpm response and urban efficiency. Designed to meet Euro 6b emissions standards, it balances drivability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,499 cc | |
| Fuel type | Petrol (ULP 95 RON min) | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 79.0 mm × 81.4 mm | |
| Power output | 103 kW (140 PS) @ 6,000 rpm | |
| Torque | 240 Nm @ 1,600–4,000 rpm | |
| Fuel system | Bosch HDP6 high‑pressure direct injection (up to 200 bar) | |
| Emissions standard | Euro 6b | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled with electric auxiliary pump | |
| Turbocharger | Single twin‑scroll (Honeywell GT1544V) | |
| Timing system | Belt‑driven (120,000 km or 10‑year replacement interval) | |
| Oil type | Ford WSS‑M2C946‑A (SAE 5W‑30) | |
| Dry weight | 102 kg |
The compact three-cylinder layout delivers strong low-end torque ideal for city driving but requires adherence to the 120,000 km or 10-year timing belt replacement schedule to prevent catastrophic failure. Use of 95 RON (or higher) unleaded petrol is essential to protect the high-pressure fuel pump and maintain emissions compliance. Ford WSS-M2C946-A (5W-30) oil must be used to ensure proper turbo and valvetrain protection. Early QYBA units (2015–2018) should have the tensioner pulley upgraded per TSB-18-2231 if exhibiting belt squeal or irregular tension.
Oil Specs: Requires Ford WSS-M2C946-A (5W-30) specification (Ford TSB-18-2231). Equivalent to ACEA C2 but with Ford-specific additive limits.
Emissions: Euro 6b certification applies to all QYBA engines (2015–2022) (VCA Type Approval #VCA/EMS/8842). No Euro 6d variants exist.
Power Ratings: Measured under ISO 1585 standards. Peak output requires 95 RON fuel (Ford TIS Doc. F31300).
Ford Technical Information System (TIS): Docs F31205, F31218, F31300
Ford Technical Service Bulletin TSB-18-2231
VCA Type Approval Database (VCA/EMS/8842)
ISO 1585: Road vehicles — Engine test code
The Ford QYBA was used across Ford's C2/B2E platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts in the Puma and revised air intake routing in the Focus—and from 2020 the mild-hybrid (MHEV) variant introduced a belt-integrated starter generator (BISG), creating mechanical and electrical interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crankshaft pulley (Ford TIS F31250). The 8th VIN digit indicates engine displacement ('Y' for 1.5L EcoBoost). QYBA units feature a black plastic intake manifold with “1.5L EcoBoost” branding and a Honeywell GT1544V turbo with twin-scroll housing. Differentiate from QYBB (125 PS) by power rating badge and ECU calibration. MHEV Puma variants include a 48V belt-integrated starter generator and revised alternator bracket.
The QYBA's primary reliability risk is timing belt tensioner pulley wear in early builds, with elevated incidence in high-temperature climates or frequent short-trip driving. Ford internal field data from 2019 indicated a notable failure rate before 100,000 km in pre-TSB engines, while DVSA records show minimal emissions-related recalls. Extended thermal cycling without belt inspection increases pulley degradation, making timely replacement critical.
Analysis derived from Ford technical bulletins (2016–2021) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD QYBA.
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