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 VCA Type Approval #VCA/EMS/7823.
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 | SAE 5W‑30 (ACEA B4) | |
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.
The A 17 DTJ's primary reliability risk is camshaft drive lobe wear for the high-pressure fuel pump on pre-2007 units, with elevated incidence in high-mileage or infrequently serviced vehicles. Vauxhall internal field reports from 2006 noted premature lobe failure in ~8% of engines before 100,000 km, while UK DVSA historical data shows EGR-related emissions faults as a common MOT advisory item. Extended oil-change intervals and use of non-ACEA B4 oils increase cam wear, making adherence to service schedules critical.
Analysis derived from Vauxhall technical bulletins (2005–2010) and UK DVSA failure statistics (2011–2020). 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.
Modest gains are possible. ECU remapping can yield +15–20 kW safely, as the stock internals handle increased torque. However, the fixed-geometry turbo and SOHC head limit potential. Any tuning should include upgraded cooling and monitoring of fuel pump health.
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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VAUXHALL Official Site
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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
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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
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GOV.UK: Vehicle Approval
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