The Vauxhall A17DTS is a 1,686 cc, inline‑four turbo‑diesel engine produced between 2010 and 2015. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 95 kW (130 PS) and 300 Nm of torque, with strong low — rpm pull for responsive everyday drivability.
Fitted to models such as the Astra J, Zafira C, and Meriva B—including the 1.7 CDTi variants—the A17DTS was engineered for fuel — e…
Production years 2010–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/4321).
The Vauxhall A17DTS is a 1,686 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2010–2015). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient cruising. Designed to meet Euro 5 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,686 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 79.0 mm × 86.0 mm | |
Power output | 95 kW (130 PS) | |
Torque | 300 Nm @ 1,700–2,500 rpm | |
Fuel system | Bosch CP3.4 common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted) | |
Oil type | GM Dexos2 (SAE 5W‑30) | |
Dry weight | 140 kg |
The Vauxhall A17DTS was used across Vauxhall's Astra J, Zafira C, and Meriva B platforms with transverse mounting and co-developed with PSA (Peugeot/Citroën) under the joint Euro 5 diesel program. This engine received platform-specific adaptations—revised engine mounts in the Zafira and modified intake manifolds in the Meriva—and from 2013 the updated turbo actuator design improved reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The A17DTS's primary reliability risk is turbocharger actuator failure on early builds, with elevated incidence in vehicles used for frequent short trips or urban driving. Vauxhall internal data from 2014 indicated a notable share of pre-2013 engines requiring actuator replacement before 100,000 km, while UK DVSA records show increased DPF-related MOT failures in city-driven examples. Stop-start cycles and poor fuel quality accelerate wear, making fuel specification and oil interval adherence critical.
Analysis derived from Vauxhall technical bulletins (2011–2015) and UK DVSA failure statistics (2015–2023). 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 A17DTS offers good efficiency and torque, but early models (2010–2012) are prone to turbo actuator failures. Post-2013 revisions improved actuator durability. With strict adherence to Dexos2 oil, EN 590 diesel, and timely servicing, later examples can be dependable beyond 150,000 km.
Top issues include turbo actuator sticking/failure, DPF regeneration failures from short trips, EGR cooler clogging/leaks, and HPFP wear. These are documented in Vauxhall service bulletins and DVSA MOT data, especially for urban-driven vehicles.
The A17DTS powered the Astra J (1.7 CDTi), Zafira C (1.7 CDTi), and Meriva B (1.7 CDTi) from 2010–2015. It was also used in Opel Astra J and shared with PSA under co-development. All are Euro 5 compliant.
Yes. Stage 1 ECU remaps typically yield +15–20 kW safely, as the turbo and internals tolerate moderate torque increases. However, turbo actuator and DPF reliability may suffer without supporting upgrades. Tuning is not recommended on pre-2013 engines without actuator replacement.
In an Astra J 1.7 CDTi, expect ~4.9 L/100km combined (58 mpg UK). City driving yields ~5.9 L/100km, highway ~4.2 L/100km. Real-world economy depends heavily on driving style and DPF regeneration frequency—short trips reduce efficiency.
Yes. The A17DTS is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. While chain failures are rare, any unusual noises should be investigated immediately.
Vauxhall specifies GM Dexos2 5W-30 synthetic oil. This is critical for turbo bearing lubrication and DPF protection. Never use non-Dexos2 oils, as incorrect additives can accelerate actuator wear or cause DPF clogging.
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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