The Vauxhall B12XHT (also known as PSA EB2DTS) is a 1,199 cc, inline‑three turbo‑charged diesel engine produced between 2018 and 2023. It features a DOHC 12‑valve layout with high — pressure common‑rail direct injection and a fixed‑geometry turbocharger. In standard form it delivered 70 kW (95 PS) and 230 Nm of torque, optimized for urban efficiency and compact vehicle packaging.
Fitted primarily to the Crossland X and Grandland X, the B12XHT was engineered for complian…
Production years 2018–2023 meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9876).
The Vauxhall B12XHT (EB2DTS) is a 1,199 cc inline‑three turbo‑diesel engineered for subcompact and compact SUVs (2018–2023). It combines Bosch common‑rail injection with a fixed-geometry turbocharger to deliver responsive 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 | 1,199 cc | |
Fuel type | Diesel (EN 590) | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 90.5 mm | |
Power output | 70 kW (95 PS) @ 3,750 rpm | |
Torque | 230 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 | Fixed‑geometry turbo (BorgWarner KP39) | |
Timing system | Chain (front‑mounted) | |
Oil type | GM Dexos2 (SAE 5W‑30) | |
Dry weight | 112 kg |
The Vauxhall B12XHT (EB2DTS) was used across Vauxhall's 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 and modified engine mounts in the Crossland—and from 2021 the facelifted Grandland models adopted updated ECU calibrations, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
The B12XHT's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear on the camshaft, 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 camshaft 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 B12XHT offers compact packaging and Euro 6d compliance, but early models (2018–2020) had HPFP cam lobe reliability concerns. Later units improved camshaft 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 lobe wear, AdBlue crystallization from short trips, DPF pressure sensor drift, and EGR valve sticking. These are documented in Vauxhall service bulletins TIS 19‑063 and 18‑055.
This 1.2L diesel was used in the Crossland X (2018–2023) and Grandland X (2018–2023) as the 1.2 Diesel 95 PS variant with AdBlue/SCR. It is a PSA-sourced EB2DTS unit and was not used in non-SUV Vauxhall lines.
Limited potential. As a small three-cylinder diesel, gains are modest—typically +5–10 kW via ECU remap. Stock internals handle up to ~110 PS reliably. Supporting mods like DPF/SCR delete (where legal) allow further gains, but may affect emissions compliance and warranty.
In a Crossland X 1.2 Diesel, typical consumption is ~5.2 L/100km (city) and ~3.8 L/100km (highway), or about 60 mpg UK combined. Real-world economy varies with driving style—expect 52–62 mpg UK on mixed roads for a healthy, unmodified engine.
Yes. The B12XHT 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 lobe 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
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.