The Renault G9T 700 is a 2,993 cc, V6 turbo‑diesel engine produced between 2007 and 2014. It features an aluminum block and heads, double overhead camshafts (DOHC), and a fixed-geometry turbocharger for robust low-end torque. Output is 173 kW (235 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 Vel Satis, the G9T 700 was engineered for refined performance and high-load capability. Emissions compliance was managed through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), meeting Euro 4 standards for its production period.
A documented service concern involves potential premature failure of the high-pressure fuel pump, which can lead to engine stalling. This issue, referenced in Renault Technical Note MEC 006 (08/2009), is often linked to fuel contamination or lubrication issues. Later production runs incorporated revised pump internals.
Production years 2007–2014 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5677).
The Renault G9T 700 is a 2,993 cc V6 turbo‑diesel engineered for executive sedans and premium applications (2007-2014). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver smooth, high-torque performance and stable highway cruising. Designed to meet Euro 4 standards, it prioritizes refinement and load-carrying capacity.
| 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 | 173 kW (235 PS) | |
| Torque | 450 Nm @ 1,500 rpm | |
| Fuel system | Siemens VDO common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 16.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Garrett) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0700 (SAE 5W‑40) | |
| Dry weight | 245 kg |
The fixed-geometry 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 RN0700 (5W-40) oil is critical for protecting fuel pump internals and meeting extended drain specifications. The chain-driven valvetrain is generally robust, but tensioner inspection is advised at 150,000 km. High-pressure fuel pump failure, if suspected, requires immediate diagnosis per Technical Note MEC 006; replacement with the latest OEM-specified part is recommended.
Oil Specs: Requires Renault RN0700 specification (Renault Service Manual 6011A). ACEA B4 is the minimum acceptable standard.
Emissions: Euro 4 certification applies to all 2007–2014 G9T 700 models (VCA Type Approval #VCA/EMS/5677).
Power Ratings: Measured under ISO 1585 standards. Peak figures require fuel meeting EN 590 specifications (Renault Technical Note MEC 006).
Renault Technical Information System: Notes MEC 005, MEC 006
Renault Service Manual 6011A (Diesel Engines)
VCA Type Approval Database (VCA/EMS/5677)
The Renault G9T 700 was used across Renault's Laguna and Vel Satis 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 6011A, 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 G8T series: The G9T is a V6, whereas G8T engines are inline-4. Service parts, particularly for the fuel system and turbo, are not interchangeable between G8T and G9T variants.
The G9T 700's primary documented concern is high-pressure fuel pump failure, with incidence linked to fuel quality and lubrication issues. Renault internal service data indicates this was a notable cause for warranty claims, while owner reports frequently cite sudden engine stalling. Sustained high engine loads and infrequent oil changes increase failure risk, making fuel and oil quality critical.
Analysis derived from Renault technical bulletins (2007-2014) and owner-reported failure patterns. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-700.
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RENAULT Official Site
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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