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 w…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The B16SHT offers compact packaging and Euro 6d compliance, but early models (2018–2020) had HPFP cam follower reliability concerns. Later units improved component hardness, so well-maintained examples can be robust. Regular servicing and using GM Dexos2 5W‑30 oil greatly aid longevity.
The biggest issues are HPFP cam follower wear, AdBlue crystallization from short trips, EGR valve coking, and DPF pressure sensor drift. These are documented in Vauxhall service bulletins TIS 19‑072 and 18‑061.
This 1.5L diesel was used in the Corsa E (2018–2023), Crossland X (2018–2023), and Grandland X (2018–2023) as the 1.5 Diesel 120 PS variant with AdBlue/SCR. It is a PSA-sourced engine shared across Stellantis brands.
Yes. The B16SHT responds well to ECU remapping, with stage 1 tunes typically yielding +10–15 kW safely. Stock internals handle up to ~140 PS reliably. Supporting mods like a better intercooler and DPF/SCR delete (where legal) allow further gains, but may affect emissions compliance and warranty.
In a Corsa E 1.5 Diesel, typical consumption is ~5.0 L/100km (city) and ~3.6 L/100km (highway), or about 63 mpg UK combined. Real-world economy varies with driving style—expect 55–65 mpg UK on mixed roads for a healthy, unmodified engine.
Yes. The B16SHT is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, causing catastrophic damage. While the chain is generally durable, any unusual timing noise should be investigated immediately.
Vauxhall specifies GM Dexos2 5W‑30 synthetic oil. This is critical for HPFP cam follower lubrication and turbo protection. Always change oil every 15,000 km or 12 months, whichever comes first, especially in stop-start or urban use.
Comprehensive technical documentation and regulatory references
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VAUXHALL Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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