The Vauxhall Y32NE is a 3,175 cc, V6 naturally aspirated petrol engine produced between 2003 and 2008. It features a dual overhead camshaft (DOHC) layout with 24 valves and variable valve timing on the intake camshafts. In standard form it delivered 152 kW (207 PS) and 290 Nm of torque, providing smooth power delivery and refined highway cruising.
Fitted to models such as the Vectra C and Signum, including the 3.2i GSi variants, the Y32NE was engineered for drivers seeking re…
All production years 2003–2008 meet Euro 4 standards .
The Vauxhall Y32NE is a 3,175 cc V6 naturally aspirated petrol engine engineered for mid-size executive models (2003–2008). It combines DOHC architecture with variable intake cam timing to deliver smooth, linear power and refined cruising. Designed to meet Euro 4 emissions standards, it balances performance with drivability and moderate fuel consumption.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,175 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 87.5 mm × 88.0 mm | |
Power output | 152 kW (207 PS) @ 6,200 rpm | |
Torque | 290 Nm @ 3,200 rpm | |
Fuel system | Sequential multi-point injection (Bosch Motronic ME7.6) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 182 kg |
The Vauxhall Y32NE was used across Vauxhall's Vectra C and Signum platforms with longitudinal mounting and shared with Opel and Holden under GM's global architecture. This engine received platform-specific adaptations—reinforced subframes in the Signum GSi and revised engine mounts in the Vectra C Estate—and from 2006 the facelifted models adopted updated CCV components, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The Y32NE offers smooth V6 performance but is prone to sludge-related issues if not maintained properly. Early models (2003–2005) are more susceptible to CCV clogging. With regular oil changes using Dexos2 5W-30 and updated breather components, it can be dependable beyond 200,000 km.
Top issues include CCV system sludge causing oil leaks, ignition coil pack failures, variable cam phaser wear, and plastic thermostat housing cracks. These are documented in Vauxhall service bulletins, especially TIS 08-04-03 for sludge and TIS VEC‑IGN‑02 for coils.
It powered the Vectra C 3.2i/3.2i GSi (2003–2008) and Signum 3.2i/3.2i GSi (2003–2008). It was also used in Opel Vectra C/Signum and Holden VZ Commodore Berlina/Calais (2004–2006) under GM's global platform strategy.
Yes, but gains are modest due to naturally aspirated design. ECU remaps yield +10–15 kW, while exhaust and intake upgrades add marginal gains. Forced induction is complex and not common. Most owners prioritize reliability over tuning.
In a Vectra C 3.2i GSi, expect ~12.5 L/100km (city) and ~7.8 L/100km (highway), or about 23 mpg UK combined. Real-world mixed driving typically yields 20–25 mpg (UK), depending on condition and driving style.
Yes. The Y32NE is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the chain is robust and rarely fails if oil is maintained.
Vauxhall specifies GM Dexos2 5W-30 or ACEA A3/B4 equivalent. This high-quality synthetic oil resists sludge and ensures proper lubrication of the cam phasers and chain. Change every 10,000–15,000 km max.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.