The Vauxhall B16SHT is a 1,499 cc, inline‑four turbo‑charged diesel engine produced between 2018 and 2023. It features a DOHC 16‑valve layout with high-pressure common‑rail direct injection and a variable geometry turbocharger. In standard form it delivered 88 kW (120 PS) and 300 Nm of torque, optimized for responsive urban driving and efficient motorway cruising.
Fitted primarily to the Corsa E, Crossland X, and Grandland X, the B16SHT was engineered for compliance with Euro 6d emissions standards. This was achieved through cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and a selective catalytic reduction (SCR) system using AdBlue®.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) cam follower, which can cause hard starting or rail pressure faults. This issue, referenced in Vauxhall Service Bulletin TIS 19‑072, is linked to marginal lubrication under frequent short-trip driving or use of non‑Dexos2‑approved lubricants. Later production units incorporated a hardened cam follower and revised oil gallery feed to improve durability.
Production years 2018–2023 meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9912).
The Vauxhall B16SHT is a 1,499 cc inline‑four turbo‑diesel engineered for subcompact and compact SUVs (2018–2023). It combines Bosch common‑rail injection with a variable-geometry turbocharger to deliver strong low‑rpm torque in a compact footprint. Designed to meet Euro 6d emissions standards, it integrates AdBlue® SCR technology alongside EGR and DPF systems for regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,499 cc | |
| Fuel type | Diesel (EN 590) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 77.0 mm × 80.5 mm | |
| Power output | 88 kW (120 PS) @ 3,750 rpm | |
| Torque | 300 Nm @ 1,750 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable‑geometry turbo (Honeywell VNT17) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | GM Dexos2 (SAE 5W‑30) | |
| Dry weight | 128 kg |
The VGT turbo and SCR/AdBlue system provide strong low-end torque and emissions compliance but require strict adherence to 15,000 km oil change intervals using GM Dexos2 (5W‑30) to prevent HPFP cam follower wear. Ultra-low-sulfur diesel (EN 590) is essential to avoid high-pressure pump seizure. Frequent short trips may lead to AdBlue crystallization or incomplete DPF regeneration. Vauxhall SIB 19‑072 recommends cam follower inspection if hard-start symptoms occur before 100,000 km, especially in vehicles with non‑compliant oil history.
Oil Specs: Requires GM Dexos2 (5W‑30) specification (Vauxhall SIB 19‑072). Not interchangeable with older GM-LL-A-025.
Emissions: Euro 6d certification applies to all 2018–2023 B16SHT models (VCA Type Approval #VCA/EMS/9912).
Power Ratings: Measured under SAE J1349 standards. Peak output assumes EN 590 diesel quality (Vauxhall TIS Doc. B16‑3401).
Vauxhall Technical Information System (TIS): Docs B16‑3310, B16‑3330, SIB 19‑072
VCA Type Approval Database (VCA/EMS/9912)
SAE International: J1349 Engine Power Certification Standards
The Vauxhall B16SHT was used across Vauxhall's Corsa E, Crossland X, and Grandland X platforms with transverse mounting and developed jointly with PSA Group. This engine received platform-specific adaptations—revised AdBlue tank routing in the Grandland, modified engine mounts in the Crossland, and compact intake manifolds in the Corsa—and from 2021 facelifted models adopted updated ECU calibrations, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crank pulley (Vauxhall TIS B16‑3315). The 7th VIN digit indicates engine family ('6' for B16 series). All B16SHT units feature a black plastic cam cover with “1.5 Diesel” badge and an AdBlue dosing unit mounted near the exhaust manifold. Critical differentiation from non-SCR B16DTH: B16SHT uses Bosch EDC17C74 ECU with AdBlue/SCR; B16DTH uses EDC17C10 without SCR. ECU and injector part numbers must match application—interchange between SCR and non-SCR variants is not supported (Vauxhall SIB 18‑061).
The B16SHT's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in vehicles used for frequent short trips or with non‑Dexos2 oil. Vauxhall internal data from 2021 indicated a measurable uptick in HPFP-related warranty claims before 100,000 km, while UK DVSA records show minimal emissions failure correlation due to robust SCR monitoring. Oil quality and driving pattern make cam follower longevity critical.
Analysis derived from Vauxhall technical bulletins (2018–2022) and UK DVSA failure statistics (2019–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL B-16-SHT.
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Regulation (EC) No 715/2007
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