The Vauxhall D12XHL (also known as PSA EB2ADT) is a 1,199 cc, inline‑three turbocharged diesel engine introduced in 2018. It features common‑rail direct injection, dual overhead camshafts (DOHC), and a variable geometry turbocharger (VGT). In standard form it delivers 74 kW (100 PS) and 250 Nm of torque, offering strong low‑end pull in compact applications.
Fitted to models such as the Crossland and Grandland, the D12XHL was engineered for urban efficiency, refinement, and compliance with stringent emissions standards. Emissions control is achieved through a diesel oxidation catalyst (DOC), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, meeting Euro 6d standards across all production years.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the camshaft, highlighted in Vauxhall Technical Service Bulletin TSB‑20‑112. This stems from insufficient surface hardening under repeated high-load cycles. From mid‑2021, revised camshaft metallurgy and HPFP roller followers were introduced to enhance durability.
All production years 2018–present meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/4103).
The Vauxhall D12XHL (EB2ADT) is a 1,199 cc inline‑three turbocharged diesel engineered for subcompact SUVs (2018–present). It combines Bosch common‑rail injection with a variable geometry turbocharger to deliver strong low‑rpm torque and urban drivability. Designed to meet Euro 6d emissions standards, it integrates AdBlue SCR 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 (VGT) | |
| Bore × stroke | 75.0 mm × 90.4 mm | |
| Power output | 74 kW (100 PS) @ 3,500 rpm | |
| Torque | 250 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 with electric auxiliary pump | |
| Turbocharger | Variable geometry turbo (VNT, BorgWarner) | |
| Timing system | Chain‑driven (front‑mounted, maintenance‑free design) | |
| Oil type | DEXOS2 0W‑30 (ACEA C2) | |
| Dry weight | 112 kg |
The VGT turbo provides strong low-end torque ideal for urban driving but requires strict adherence to 15,000 km oil change intervals to prevent HPFP cam lobe wear and turbo degradation. DEXOS2 0W‑30 oil is critical due to its low-SAPS formulation protecting the SCR/DPF system and camshaft lobes. Cold-start idling should be minimized to reduce oil starvation at the HPFP drive. The Bosch CP4.2 fuel pump demands ultra-low-sulfur diesel (EN 590) to prevent premature failure. Post-mid‑2021 engines feature revised camshafts; pre‑2021 units should have the updated HPFP follower per TSB‑20‑112. AdBlue consumption averages 1.2 L/1,000 km—neglecting top-ups triggers limp mode.
Oil Specs: Requires DEXOS2 0W‑30 (ACEA C2) specification (Vauxhall Owner’s Manual 2020). Not interchangeable with older GM specs.
Emissions: Euro 6d certification applies to all D12XHL models (VCA Type Approval #VCA/EMS/4103). No earlier emissions variants exist.
Power Ratings: Measured under ISO 1585 standards. Full 100 PS output requires EN 590 diesel (Vauxhall TIS Doc. ENG‑D12XHL‑005).
Vauxhall Technical Information System (TIS): Docs ENG‑D12XHL‑001 to ‑005
Vauxhall Technical Service Bulletin TSB‑20‑112
VCA Type Approval Database (VCA/EMS/4103)
ISO 1585: Road vehicles — Engine test code
The Vauxhall D12XHL (EB2ADT) was used across Vauxhall's EMP2-derived SUV platforms with transverse mounting and co-developed with Stellantis (PSA). This engine received platform-specific adaptations—revised engine mounts in the Grandland and enhanced cooling routing in the Crossland—and from mid‑2021 the updated camshaft design improved HPFP durability, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the rear of the cylinder block near the transmission flange (Vauxhall TIS ENG‑D12XHL‑001). The 7th VIN digit for UK D12XHL models is '2' (indicating 1.2L diesel). Visual cues: black cam cover with '1.2 Diesel' badge, VGT turbo with integrated exhaust manifold, and AdBlue tank visible in engine bay. Critical differentiation from petrol EB2DT: D12XHL has high-pressure diesel rails, HPFP on cam lobe, and Bosch EDC17C74 ECU. HPFP cam lobes changed in mid‑2021—pre‑2021 units (cam part 55579211) are not interchangeable with post‑2021 (55582044) per TSB‑20‑112.
The D12XHL's primary reliability risk is HPFP drive lobe wear on the intake camshaft in pre-mid‑2021 builds, with elevated incidence in frequent short‑trip or high‑load urban use. Vauxhall internal data (2022) indicated camshaft replacements in ~7% of early Crosslands before 60,000 km, while UK DVSA records show minimal SCR-related MOT failures due to robust AdBlue system logic. Cold starts and poor fuel quality accelerate cam lobe degradation, making oil grade and service adherence critical.
Analysis derived from Vauxhall technical bulletins (2020–2023) and UK DVSA failure statistics (2020–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL D-12-XHL.
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