The Vauxhall B15SFL is a 1,490 cc, inline‑three turbo‑petrol engine produced between 2021 and 2024. It features direct fuel injection, a single twin-scroll turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 110 kW (150 PS) and 230 Nm of torque, providing responsive low‑rpm performance and efficient urban drivability.
Fitted to models such as the Corsa F, Crossland, and Grandland, including the 1.5 Turbo 150 variants, the B15SFL was engineered for compact efficiency, low CO₂ emissions, and refined power delivery. Emissions compliance was achieved through a gasoline particulate filter (GPF), cooled exhaust gas recirculation (EGR), and precise electronic control, meeting Euro 6d standards across all production years.
One documented concern is high-pressure fuel pump (HPFP) drive lobe wear on the intake camshaft, highlighted in Vauxhall Service Bulletin 22‑081. This issue stems from marginal lubrication under high thermal loads and can lead to fuel pressure instability or pump seizure. From late 2022, revised camshaft profiles and updated HPFP units were introduced to improve durability.
All production years (2021–2024) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9370).
The Vauxhall B15SFL is a 1,490 cc inline‑three turbo‑petrol engineered for subcompact and compact SUV platforms (2021–2024). It combines Bosch HDEV6 direct injection with a twin-scroll turbocharger to deliver strong low-end torque and smooth operation. Designed to meet Euro 6d emissions standards, it balances urban agility with regulatory compliance and fuel efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,490 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 86.6 mm | |
| Power output | 110 kW (150 PS) | |
| Torque | 230 Nm @ 1,750–4,000 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single twin-scroll turbo (Honeywell) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | GM dexos1 Gen 3 (SAE 0W‑20) | |
| Dry weight | 108 kg |
The twin-scroll turbo provides strong low-end torque ideal for city driving but demands strict adherence to 15,000 km oil change intervals using GM dexos1 Gen 3 (0W-20) to protect the high-pressure fuel pump cam lobe and turbo bearings. Direct injection lacks valve cleaning, though GPF and EGR design mitigate carbon buildup. Use only EN 228-compliant petrol with ≤10% ethanol to prevent injector and combustion instability. Post-2022 engines include revised camshaft profiles per Vauxhall SIB 22-081; pre-2022 units benefit from updated HPFP and oil feed enhancements.
Oil Specs: Requires GM dexos1 Gen 3 (0W-20) specification (Vauxhall SIB 22-081). Mandatory for HPFP cam lobe protection and GPF compatibility.
Emissions: Euro 6d certification applies to all 2021–2024 builds (VCA Type Approval #VCA/EMS/9370).
Power Ratings: Measured under SAE J1349 standards. Output verified on Corsa F and Grandland platforms (Vauxhall TIS Doc. T15-7201).
Vauxhall Technical Information System (TIS): Docs T15-7102, T15-7118, T15-7130, SIB 22-081
VCA Type Approval Database (VCA/EMS/9370)
SAE International: J1349 Engine Power Certification Standards
The Vauxhall B15SFL was used across Vauxhall's Corsa F, Crossland, and Grandland platforms with transverse mounting and shared with Peugeot and Citroën under Stellantis collaboration. This engine received platform-specific adaptations—revised engine mounts in the Grandland and modified exhaust manifolds in the Corsa F—and from late 2022 the HPFP and camshaft updates improved reliability, creating minor service part interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crankshaft pulley (Vauxhall TIS T15-7080). The 7th VIN digit indicates engine family ('5' for 1.5 Turbo). All B15SFL units feature black plastic valve covers with “B15SFL” embossed and include a gasoline particulate filter (GPF) integrated into the exhaust manifold. Critical differentiation from B15XFL: B15SFL uses direct injection and GPF; B15XFL is port-injected without GPF. Service parts require production date verification—HPFP and camshaft components before 10/2022 are prone to wear per Vauxhall SIB 22-081.
The B15SFL's primary reliability risk is high-pressure fuel pump cam lobe wear in pre-late-2022 builds under sustained high-load conditions. Vauxhall internal data from 2023 indicated a measurable rate of HPFP-related failures before 80,000 km in engines operated with non-compliant oil or aggressive driving. UK DVSA records show minimal GPF-related MOT failures, confirming robust aftertreatment durability. Extended oil intervals and poor-quality petrol increase injector and turbo stress, making oil specification and fuel quality critical.
Analysis derived from Vauxhall technical bulletins (2022–2024) and UK DVSA failure statistics (2022–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL B-15-SFL.
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