The Vauxhall M9T 706 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2016 and 2022. It features common‑rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 140 kW (190 PS) and 400 Nm of torque, offering strong low‑rpm pull ideal for large SUVs and MPVs.
Fitted to models such as the Insignia B, Grandland X, and Vivaro C—including the 2.3 CDTi variants—the M9T 706 was engineered for hi…
All production years (2016–2022) meet Euro 6d-TEMP standards .
The Vauxhall M9T 706 is a 2,299 cc inline‑four turbo‑diesel engineered for large SUVs and commercial derivatives (2016–2022). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver high torque output and refined highway performance. Designed to meet Euro 6d-TEMP, it integrates AdBlue-based SCR for stringent NOx control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,299 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.0 mm × 92.4 mm | |
Power output | 140 kW (190 PS) @ 3,750 rpm | |
Torque | 400 Nm @ 1,500–2,750 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP | |
Compression ratio | 15.5:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Variable geometry turbo (Garrett GT2260V) | |
Timing system | Chain (front‑mounted; maintenance‑free design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 170 kg |
The Vauxhall M9T 706 was used across Vauxhall's Insignia B, Grandland X, and Vivaro C platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Grandland X for NVH control and modified AdBlue tank routing in the Vivaro—and from mid‑2019 the Insignia B adopted updated camshaft hardware, 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 M9T 706 offers high torque and excellent refinement, but early units (2016–mid-2019) had camshaft HPFP lobe wear concerns under urban use. Later revisions improved durability. With proper maintenance—especially using DEXOS2 5W-30 oil, quality diesel, and regular highway driving—most engines exceed 200,000 km without major issues.
Top issues include camshaft HPFP lobe wear, AdBlue dosing valve crystallisation, DPF pressure sensor drift, and VGT actuator sticking. Camshaft and AdBlue problems are addressed in Vauxhall service bulletins PI1024 and TIS-M9T706-08.
The M9T 706 powered the Insignia B (2017–2022), Grandland X (2017–2022), and Vivaro C (2019–2022) in 2.3 CDTi 190 PS form. It was not used in passenger cars outside these platforms. All applications are transverse FWD or AWD layouts with Euro 6d-TEMP SCR systems.
Aftermarket ECU tuning is common on the M9T-706 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 Grandland X 2.3 CDTi (190 PS), expect ~6.8 L/100km (city), ~5.1 L/100km (highway), or ~48 mpg UK combined. Real-world mixed driving typically returns 40–45 mpg UK. Economy suffers with short trips due to frequent DPF/SCR regeneration cycles and AdBlue consumption.
Yes. The M9T 706 is an interference engine. If the timing chain fails (extremely rare due to front-mounted design), piston-to-valve contact will cause catastrophic damage. However, the chain is designed for life-of-engine service with proper oil maintenance.
Vauxhall specifies DEXOS2 5W-30 (ACEA C3) synthetic oil. This low-SAPS formulation protects the turbo, HPFP, and emissions systems. Change intervals should not exceed 15,000 km or 12 months, especially with urban driving.
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.