The Renault G9T 743 is a 2,993 cc, V6 turbo‑diesel engine produced between 2011 and 2018. It features an aluminum block and heads, double overhead camshafts (DOHC), and a variable geometry turbocharger (VGT) for responsive power delivery. Output is 177 kW (240 PS), with peak torque of 450 Nm, providing strong pulling power ideal for premium SUVs and executive vehicles.
Fitted primarily to the Renault Laguna GT and updated Espace, the G9T 743 was engineered for refined performance and improved emissions compliance. Emissions control was managed through a diesel particulate filter (DPF) and exhaust gas recirculation (EGR), meeting Euro 5 standards for its production period.
A documented service concern involves potential EGR valve clogging under low-load driving conditions. This issue, referenced in Renault Technical Note MEC 011 (05/2013), is often linked to urban driving patterns that prevent adequate valve cleaning. Software updates and revised valve designs were introduced to mitigate the issue.
Production years 2011–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault G9T 743 is a 2,993 cc V6 turbo‑diesel engineered for executive sedans and premium applications (2011-2018). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver smooth, high-torque performance and stable highway cruising. Designed to meet Euro 5 standards, it prioritizes refinement and emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,993 cc | |
| Fuel type | Diesel | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 85.0 mm × 88.0 mm | |
| Power output | 177 kW (240 PS) | |
| Torque | 450 Nm @ 1,500 rpm | |
| Fuel system | Siemens VDO common‑rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0710 (SAE 5W‑40) | |
| Dry weight | 245 kg |
The VGT turbo provides strong, linear torque suited for highway cruising and towing, but requires adherence to 20,000 km service intervals to maintain EGR/DPF function. Renault RN0710 (5W-40) oil is critical for protecting turbo bearings and meeting extended drain specifications. The chain-driven valvetrain is generally robust, but tensioner inspection is advised at 150,000 km. EGR valve clogging, if suspected, requires diagnosis per Technical Note MEC 011; cleaning or replacement with the latest OEM-specified part is often necessary.
Oil Specs: Requires Renault RN0710 specification (Renault Service Manual 6011B). ACEA C3 is the minimum acceptable standard for DPF protection.
Emissions: Euro 5 certification applies to all 2011–2018 G9T 743 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under ISO 1585 standards. Peak figures require fuel meeting EN 590 specifications (Renault Technical Note MEC 009).
Renault Technical Information System: Notes MEC 008, MEC 009, MEC 010, MEC 011
Renault Service Manual 6011B (Diesel Engines)
VCA Type Approval Database (VCA/EMS/5678)
The Renault G9T 743 was used across Renault's Laguna and Espace platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Laguna GT for high-speed stability-and no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface at the front of the cylinder block, near the timing cover (Renault Service Manual 6011B, Fig. 1-3). The 8th digit of the VIN typically corresponds to the engine code 'G9T'. Visually, the engine is identifiable by its aluminum construction, V6 configuration, and the prominent Garrett turbocharger on the exhaust manifold side. Critical differentiation from the earlier G9T 700: The 743 uses an updated ECU software map optimized for Euro 5 and a revised EGR valve design. Service parts, particularly for the EGR system, are not interchangeable between 700 and 743 variants.
The G9T 743's primary documented concern is EGR valve clogging, with incidence linked to urban driving patterns. Renault internal service data indicates this was a notable cause for warranty claims, while UK DVSA MOT records show emissions system faults are common in city-driven examples. Driving habits and oil quality are critical factors in preventing EGR valve malfunction.
Analysis derived from Renault technical bulletins (2011-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-743.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RENAULT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
RENAULT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
