The Vauxhall A 17 DTJ is a 1,686 cc, inline‑four turbo‑diesel engine produced between 2005 and 2010. It features a single overhead camshaft (SOHC), two valves per cylinder, and common‑rail direct fuel injection. In standard form it delivered 74 kW (101 PS) at 4,000 rpm with 230 Nm of torque at 1,750 rpm, providing strong low‑end pull for compact hatchbacks and city driving.
Fitted to models such as the Vauxhall Astra H and Vauxhall Zafira B, including the 1.7 CDTi variants, th…
Production years 2005–2010 meet Euro 4 emissions standards as defined under UK.
The Vauxhall A 17 DTJ is a 1,686 cc inline‑four turbo‑diesel engineered for compact hatchbacks and MPVs (2005–2010). It combines SOHC architecture with Bosch common‑rail injection to deliver responsive low‑rpm torque and strong fuel economy. Designed to meet Euro 4 emissions standards, it balances urban drivability with serviceability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,686 cc | |
Fuel type | Diesel (EN 590 ultra-low-sulfur) | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 79.0 mm × 86.0 mm | |
Power output | 74 kW (101 PS) @ 4,000 rpm | |
Torque | 230 Nm @ 1,750 rpm | |
Fuel system | Bosch CP1 common‑rail (up to 1,350 bar) | |
Emissions standard | Euro 4 | |
Compression ratio | 18.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed-geometry turbo (Garrett GT15) | |
Timing system | Belt-driven camshaft | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 132 kg |
The Vauxhall A 17 DTJ was used across Vauxhall's Delta platform with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts in the Zafira B MPV and modified air intake routing in the Astra H hatchback—and from 2007 the facelifted Astra H adopted updated EGR coolers for improved thermal management, creating minor calibration differences. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The A 17 DTJ is generally reliable if maintained correctly. Early units (2005–2006) suffer from camshaft lobe wear driving the fuel pump, but post-2007 revisions improved durability. Strict adherence to 20,000 km timing belt changes, use of ACEA B4 5W‑30 oil, and regular EGR cleaning are essential for longevity beyond 180,000 km.
Top issues include camshaft drive lobe wear (pre-2007), EGR valve/carbon buildup, timing belt failure from missed service, and intake manifold clogging. These are documented in Vauxhall Service Bulletin SI 05‑08‑03 and TIS documentation.
The A 17 DTJ powered the Vauxhall Astra H (2005–2010) and Vauxhall Zafira B (2005–2010) in 1.7 CDTi 101 PS trim. It was exclusive to Vauxhall and not shared with Opel or other GM brands in this specification during this period.
Aftermarket ECU tuning is common on the A-17-DTJ platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Typical consumption is ~5.8 L/100km (city) and ~4.2 L/100km (highway), or about 55 mpg UK combined. Real-world figures range from 50–60 mpg UK depending on condition, driving style, and EGR functionality.
Yes. The A 17 DTJ is an interference engine. If the timing belt fails, pistons will contact open valves, causing severe internal damage. This makes strict adherence to the 20,000 km belt replacement interval critical.
Vauxhall specifies SAE 5W‑30 oil meeting ACEA B4 standard. ACEA C3 'low-SAPS' oils are not recommended due to reduced anti-wear protection for the cam/follower interface. Change every 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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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.
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