The Vauxhall B14XEL is a 1,399 cc, inline‑four turbocharged petrol engine produced between 2018 and 2023. It features direct fuel injection, a single twin-scroll turbocharger, and dual overhead camshafts (DOHC) with variable valve timing. In standard form it delivered 107 kW (145 PS) with 225 Nm of torque, engineered for responsive urban performance and efficient cruising.
Fitted to models such as the Corsa F, Crossland, and Grandland, including the 1.4 Turbo 145 variants, the B14XEL was designed to replace naturally aspirated units with a compact, fuel-efficient turbocharged alternative. Emissions compliance was achieved through gasoline particulate filtration (GPF), precise lambda control, and cooled exhaust gas recirculation (EGR), meeting Euro 6d TEMP and Euro 6d standards depending on model year.
One documented concern is carbon buildup on intake valves due to the absence of fuel-washing in direct-injection systems, highlighted in Vauxhall Service Bulletin PI1198. This is exacerbated by frequent short-trip driving and low engine loads. From late 2020, revised ECU calibration and updated valve stem seals were introduced to reduce deposit accumulation and oil consumption.
Production years 2018–2019 meet Euro 6d TEMP standards; 2020–2023 models comply with Euro 6d depending on market (VCA UK Type Approval #VCA/EMS/9105).
The Vauxhall B14XEL is a 1,399 cc inline‑four turbocharged petrol engine engineered for subcompact and compact crossovers (2018–2023). It combines Bosch high-pressure direct injection with a twin-scroll turbocharger to deliver brisk low-end response and efficient highway cruising. Designed to meet Euro 6d TEMP and Euro 6d emissions standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,399 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 80.5 mm | |
| Power output | 107 kW (145 PS) | |
| Torque | 225 Nm @ 1,500–4,000 rpm | |
| Fuel system | Bosch HDP5 high-pressure direct injection (up to 200 bar) | |
| Emissions standard | Euro 6d TEMP (2018–2019); Euro 6d (2020–2023) | |
| 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 2 (SAE 0W‑20) | |
| Dry weight | 118 kg |
The B14XEL delivers brisk urban response but requires strict adherence to oil change intervals (every 15,000 km or 12 months) to protect turbo bearings and timing components. GM Dexos1 Gen 2 (0W‑20) oil is essential due to its low viscosity and high thermal stability, which supports GPF longevity and reduces oil consumption. Frequent short trips without highway driving accelerate intake valve carbon buildup—addressed in Vauxhall SIB PI1198 with updated valve stem seals and ECU logic. The GPF demands occasional sustained speeds to enable passive regeneration and prevent backpressure faults.
Oil Specs: Requires GM Dexos1 Gen 2 (0W‑20) specification (Vauxhall SIB PI1198). Meets ACEA C5 with OEM-specific low-SAPS formulation.
Emissions: Euro 6d TEMP certification applies to 2018–2019 models only (VCA Type Approval #VCA/EMS/9105). Euro 6d compliance for 2020–2023 models confirmed via VCA database.
Power Ratings: Measured under ISO 1585 standards. Output consistent across all applications (Vauxhall TIS Doc. T14‑3010).
Vauxhall Technical Information System (TIS): Docs T14‑3001, T14‑3005, SIB PI1198
VCA Type Approval Database (VCA/EMS/9105)
ISO 1585: Road vehicles — Engine test code
The Vauxhall B14XEL was used across Vauxhall's Corsa F, Crossland, and Grandland platforms with transverse mounting and no external licensing. This engine received platform-specific calibrations—revised idle logic in the Corsa and enhanced NVH tuning in the Grandland—and from 2020 the Euro 6d-compliant variants featured updated GPF control strategies and valve stem seals, creating minor software and hardware 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 T14‑3001). The 7th VIN digit indicates engine family ('4' for 1.4 Turbo series). Euro 6d TEMP units (2018–2019) use Bosch MD1CS003 ECU with silver fuel rail; Euro 6d models (2020+) feature MD1CS005 ECU and black fuel rail with integrated pressure sensor. Critical differentiation from B12XFL: B14XEL has a turbocharger and GPF; naturally aspirated variants lack both. Valve stem seal revision introduced in 10/2020—verify part number against Vauxhall ETK before replacement.
The B14XEL's primary reliability risk is intake valve carbon buildup in early builds, with elevated incidence in urban short-trip usage. Vauxhall internal quality data from 2021 indicated a measurable rate of intake cleaning or valve replacement before 60,000 km in pre-2020 units, while UK DVSA MOT records show GPF-related backpressure faults increasing after 80,000 km in vehicles with incomplete regeneration cycles. Cold starts and low-load operation accelerate deposit formation, making oil quality and driving pattern critical.
Analysis derived from Vauxhall technical bulletins (2018–2023) and UK DVSA failure statistics (2020–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL B-14-XEL.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with VAUXHALL or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
VAUXHALL Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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)
UK type-approval authority for automotive products.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialVAUXHALL documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
