The Vauxhall A17DTN is a 1,496 cc, inline‑three turbo‑diesel engine produced between 2018 and 2023. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivered 88 kW (120 PS) with 300 Nm of torque, engineered for responsive urban driving and low fuel consumption.
Fitted to models such as the Corsa F, Crossland, and Grandland, including the 1.5 Turbo D variants, the A17DTN was designed to replace older four‑cylinder diesels with a lighter, more compact three‑cylinder architecture. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and a diesel particulate filter (DPF), meeting Euro 6d TEMP and Euro 6d standards depending on model year.
One documented concern is injector carbon fouling under predominantly short‑trip conditions, highlighted in Vauxhall Service Bulletin PI1142. This stems from incomplete combustion cycles and low exhaust temperatures preventing optimal injector self‑cleaning. From late 2020, revised injector calibration and updated ECU logic were introduced to mitigate deposit formation.
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/8921).
The Vauxhall A17DTN is a 1,496 cc inline‑three turbo‑diesel engineered for subcompact and compact crossovers (2018–2023). It combines Bosch common‑rail injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and class‑leading fuel efficiency. Designed to meet Euro 6d TEMP and Euro 6d emissions standards, it balances urban agility with long‑range economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,496 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 86.6 mm | |
| Power output | 88 kW (120 PS) | |
| Torque | 300 Nm @ 1,750–2,250 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d TEMP (2018–2019); Euro 6d (2020–2023) | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | GM Dexos2 (SAE 0W‑30) | |
| Dry weight | 112 kg |
The A17DTN delivers brisk low-end torque ideal for city driving but requires strict adherence to oil change intervals (every 15,000 km or 12 months) to protect the Bosch CP4.2 high-pressure fuel system. GM Dexos2 (0W‑30) oil is essential due to its low SAPS formulation, which safeguards the DPF and turbocharger. Frequent short trips without highway driving may lead to injector carbon fouling—addressed in Vauxhall SIB PI1142 with updated ECU calibration. DPF regeneration must complete uninterrupted; prolonged urban use may trigger limp mode if soot load exceeds thresholds.
Oil Specs: Requires GM Dexos2 (0W‑30) specification (Vauxhall SIB PI1142). Meets ACEA C5 with OEM-specific additives for injector cleanliness.
Emissions: Euro 6d TEMP certification applies to 2018–2019 models only (VCA Type Approval #VCA/EMS/8921). 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. T15‑4110).
Vauxhall Technical Information System (TIS): Docs T15‑4101, T15‑4105, SIB PI1142
VCA Type Approval Database (VCA/EMS/8921)
ISO 1585: Road vehicles — Engine test code
The Vauxhall A17DTN 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 injector timing and DPF control strategies, creating minor software 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 T15‑4101). The 7th VIN digit indicates engine family ('5' for 1.5 Turbo D series). Euro 6d TEMP units (2018–2019) use Bosch EDC17C76 ECU with silver fuel rail; Euro 6d models (2020+) feature EDC17C78 ECU and black fuel rail with integrated pressure sensor. Critical differentiation from A17DTR: A17DTN uses VGT turbo (actuator on compressor housing), while A17DTR uses fixed geometry. Injector part numbers differ—verify against Vauxhall ETK before replacement.
The A17DTN's primary reliability risk is injector carbon fouling in early builds, with elevated incidence in urban short-trip usage. Vauxhall internal quality data from 2021 indicated a measurable rate of injector cleaning or replacement before 60,000 km in pre-2020 units, while UK DVSA MOT records show DPF-related failures increasing after 90,000 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 A-17-DTN.
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