The Vauxhall Y 17 DTL is a 1,686 cc, inline‑four turbocharged diesel engine produced between 2003 and 2010. It features common — rail direct injection, a fixed — geometry turbocharger, and dual overhead camshafts (DOHC). In standard form it delivers 74 kW (101 PS) and 230 Nm of torque, offering improved urban drivability over its naturally aspirated predecessor.
Fitted to compact models such as the Corsa C, Astra H, and Meriva A—including the Corsa 1.7 CDTI and Astra 1.7 CDT…
All production years 2003–2010 meet Euro 4 emissions standards .
The Vauxhall Y 17 DTL is a 1,686 cc inline‑four turbocharged diesel engineered for superminis and compact hatchbacks (2003–2010). It combines Bosch common-rail injection with a single fixed-geometry turbocharger to deliver responsive low-RPM torque and efficient highway cruising. Designed to meet Euro 4 standards, it balances performance with urban compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,686 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (fixed-geometry) | |
Bore × stroke | 79.0 mm × 86.0 mm | |
Power output | 74 kW (101 PS) | |
Torque | 230 Nm @ 2,000 rpm | |
Fuel system | Bosch CP3 common-rail (up to 1,600 bar) | |
Emissions standard | Euro 4 | |
Compression ratio | 18.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed-geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted; low‑wear design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 135 kg |
The Vauxhall Y 17 DTL was used across Vauxhall's Corsa C, Astra H, and Meriva A platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Meriva for NVH control and unique intake manifolds in the Astra—and from 2006 the introduction of updated fuel pump couplings, creating minor internal differences. All adaptations are documented in OEM technical bulletins.
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The Y 17 DTL offers good urban efficiency and refinement over its naturally aspirated predecessor, but pre-2006 models are prone to high-pressure fuel pump coupling failures. Post-2006 Euro 4 variants are more robust. With regular oil changes (using GM dexos2) and EN 590 diesel, it can be dependable beyond 150,000 km. Its simple Euro 4 design without DPF reduces emissions-related complexity.
Top issues include high-pressure fuel pump drive failure (pre-2006), EGR clogging, turbo oil seal leaks, and minor oil leaks from cam/sump covers. These are documented in Vauxhall service bulletin TIS‑17DTL‑04. Most are preventable with quality fuel and proper maintenance.
The Y 17 DTL powered the Corsa C (2003–2006), Astra H (2004–2010), and Meriva A (2003–2006) in 1.7 CDTI 100 variants. All models meet Euro 4 emissions standards and feature DOHC 16-valve architecture with common-rail turbocharging.
Aftermarket ECU tuning is common on the Y-17-DTL 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.
In a Corsa 1.7 CDTI 100, expect ~4.9 L/100km (highway) and ~6.5 L/100km (city), or about 53 mpg UK combined. Real-world mixed driving typically returns 48–55 mpg (UK), depending on driving style, tyre pressure, and vehicle condition.
Yes. The Y 17 DTL is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause internal damage. However, the front-mounted chain is robust and designed for life-of-engine service with proper oil maintenance.
Vauxhall specifies GM dexos2 5W-30 synthetic oil. This formulation protects turbo bearings and meets low-SAPS requirements for emissions systems. Change every 15,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
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EUR-Lex
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)
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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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