The Renault G9T 706 is a 2,464 cc, inline‑four turbo‑diesel engine produced between 2006 and 2010. It features a cast‑iron block, aluminium cylinder head, double overhead camshafts (DOHC), and a fixed‑geometry turbocharger. Output is rated at 100 kW (136 PS), with peak torque of 320 Nm, engineered for strong low — end pulling power in commercial and passenger vehicles.
Fitted to models like the Master II, Trafic II, and Laguna III, the G9T 706 was designed for durability an…
Production years 2006–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5683).
The Renault G9T 706 is a 2,464 cc inline‑four turbo‑diesel engineered for light commercial and large MPVs (2006-2010). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver strong low‑end torque and mechanical durability. Designed to meet Euro 4 standards, it prioritizes reliability and serviceability over refinement.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,464 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.0 mm × 99.0 mm | |
Power output | 100 kW (136 PS) | |
Torque | 320 Nm @ 2,000 rpm | |
Fuel system | Bosch CP3 common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 4 | |
Compression ratio | 16.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed-geometry turbo (Garrett) | |
Timing system | Belt-driven | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 172 kg |
The Renault G9T 706 was used across Renault's Master II/Trafic II platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Master for commercial use-and from 2008 received a minor update with a revised high-pressure fuel pump, creating subtle service part differences. All adaptations are documented in OEM technical bulletins.
The G9T 706's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel or exceeding service intervals. Renault internal reports linked a notable number of failures to pre-2008 builds, while UK DVSA data shows DPF-related issues are common in urban-driven examples. Extended idling and short trips increase fuel system and DPF stress, making fuel quality and maintenance critical.
Analysis derived from Renault technical bulletins (2006-2010) and UK DVSA failure statistics (2015-2023). 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 G9T 706 is generally robust with strong torque, but pre-2008 models have a known risk of fuel pump failure. Later revisions improved pump durability. Long-term reliability heavily depends on using high-quality EN 590 diesel and adhering to strict 20,000 km service intervals with RN0720 oil.
The most frequent issues are high-pressure fuel pump failure, DPF blockage from short trips, and EGR valve/carbon buildup. Timing belt failure is also a critical risk if not replaced on schedule. These are well-documented in Renault service bulletins, particularly SIB 7202B for the fuel pump.
This 2.5L dCi 136 PS engine was used in the Master II (2006-2010), Trafic II (2006-2010), and Laguna III (2007-2010). It was positioned as a powerful diesel option for both commercial vans and larger passenger vehicles.
Yes, the G9T 706 can be remapped. Stage 1 tunes can safely increase power to 160-170 PS and torque to 380-400 Nm. The stock turbo and internals are generally capable, but supporting modifications like an upgraded intercooler are recommended for higher stages.
Fuel economy is moderate for its size. In a Trafic II dCi 135, expect ~8.0 L/100km (35 mpg UK) combined. In a heavier Master van, consumption might be ~9.5 L/100km (30 mpg UK). Real-world figures vary significantly with load and driving conditions.
Yes. The G9T 706 is an interference engine. If the timing belt fails or jumps, the pistons will collide with the open valves, causing catastrophic engine damage. Adhering to the 120,000 km or 5-year timing belt replacement interval is absolutely critical.
Renault mandates a 5W-30 synthetic oil meeting the RN0720 specification. This is critical for protecting the turbocharger, high-pressure fuel system, and emissions components. Using the correct oil and changing it every 20,000 km is essential for longevity.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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