The Vauxhall B16DTU is a 1,499 cc, inline‑three turbo‑diesel engine produced between 2018 and 2023. Developed jointly with Stellantis (formerly PSA) as part of the DV5 family, it features a high — pressure common‑rail fuel system, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 81–88 kW (110–120 PS) with peak torque of 250–270 Nm, offering responsive urban drivability with low fuel consumption.
Fitted to models…
All production years (2018–2023) comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9125).
The Vauxhall B16DTU is a 1,499 cc inline‑three turbo‑diesel engineered for subcompact and compact SUVs (2018–2023). It combines high-pressure common‑rail injection with a single variable‑geometry turbocharger to deliver brisk low‑end response and class-leading CO₂ figures. Designed to meet Euro 6d emissions standards, it integrates SCR/AdBlue technology alongside EGR and DPF systems.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,499 cc | |
Fuel type | Diesel | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 84.5 mm | |
Power output | 81–88 kW (110–120 PS) | |
Torque | 250–270 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 | Single variable‑geometry turbo (Honeywell) | |
Timing system | Chain (front‑mounted) | |
Oil type | DEXOS2 0W‑30 | |
Dry weight | 118 kg |
The Vauxhall B16DTU was used across Vauxhall's Corsa F, Crossland, and Grandland platforms with transverse mounting and shared extensively with Stellantis (Peugeot 208/2008, Citroën C3 Aircross). This engine received platform-specific calibrations—revised engine mounts in the Grandland and acoustic covers in the Corsa—and from late 2021 the AdBlue system hardware was updated to reduce crystallisation risk, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
The B16DTU's primary reliability risk is AdBlue system crystallisation under short-trip urban use, with elevated incidence in cold climates. Vauxhall internal data (2022) indicated a notable share of pre-2021 engines required AdBlue line cleaning before 80,000 km, while UK DVSA MOT records show SCR-related emissions failures rising in high-idle applications. Infrequent highway driving and delayed oil changes increase stress on the CP4.2 pump and SCR injector, making adherence to DEXOS2 oil and driving patterns critical.
Analysis derived from Vauxhall technical bulletins (2019–2023) 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 B16DTU offers excellent fuel economy and low CO₂, but early models (2018–2021) are prone to AdBlue crystallisation and CP4.2 pump sensitivity. Post-2021 revisions improved AdBlue reliability. Longevity depends heavily on using DEXOS2 0W-30 oil, EN 590 diesel, and including regular highway driving to enable full emissions system regeneration.
Top issues include AdBlue line crystallisation, Bosch CP4.2 fuel pump wear, EGR valve sticking, and DPF pressure sensor drift. These are documented in Vauxhall TSBs and DVSA MOT data. Regular highway driving and correct oil/fuel greatly reduce risk.
The B16DTU powered the Corsa F (2018–2023), Crossland (2018–2023), and Grandland (2018–2023) in 1.5 Turbo D 110/130 variants. It is mechanically identical to the Stellantis DV5RD engine used in Peugeot 208/2008 and Citroën C3 Aircross from the same era.
Yes. Stage 1 ECU remaps typically yield +10–15 kW safely, as the internals handle moderate torque increases. However, the CP4.2 pump and AdBlue system are weak points—any tuning should include a high-flow fuel filter and ensure AdBlue functionality remains intact to avoid emissions faults.
Excellent for its class. In a Corsa 1.5 Turbo D 110, expect ~4.5 L/100km (city) and ~3.3 L/100km (highway), or ~63 mpg UK combined. Real-world mixed driving typically returns 55–60 mpg (UK) with conservative use and regular highway segments.
Yes. The B16DTU is an interference design. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain is generally robust with proper oil maintenance.
Vauxhall specifies DEXOS2 0W-30 synthetic oil. This is mandatory for turbo-diesel protection, CP4.2 pump lubrication, and low-temperature fluidity. Change every 15,000 km or annually—whichever comes first—to prevent soot buildup and wear.
Comprehensive technical documentation and regulatory references
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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.
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