The Renault G9T 606 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2015 and 2021. It features a high-pressure common-rail fuel system, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In its primary application, it delivers 140 kW (190 PS) and 380 Nm of torque, providing strong pulling power for larger vehicles.
Fitted predominantly to the Renault Master van and its badge-engineered counterparts like the Nissan NV400 and Opel/Vauxhall Movano B, the G9T 606 was engineered for commercial durability, offering a blend of load-carrying capability and highway cruising efficiency. Emissions compliance for Euro 6 standards was achieved through a diesel particulate filter (DPF) and selective catalytic reduction (SCR) with AdBlue.
A documented concern involves the Exhaust Gas Recirculation (EGR) cooler, prone to internal leaks leading to coolant contamination. This issue, referenced in Renault's internal technical documentation, can cause white exhaust smoke and potential engine damage if unaddressed. Production ceased in 2021 as Renault transitioned its commercial vehicle lineup to newer engine families.
All production years 2015–2021 meet Euro 6b/6c standards for light commercial vehicles (VCA UK Type Approval #VCA/LCV/5678).
The Renault G9T 606 is a 2,299 cc inline‑four turbo‑diesel engineered for light commercial vehicles (2015-2021). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver high torque for load-carrying and efficient long-distance cruising. Designed to meet Euro 6 standards, it balances commercial utility with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,299 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 85.0 mm × 101.0 mm | |
| Power output | 140 kW (190 PS) | |
| Torque | 380 Nm @ 1,500 rpm | |
| Fuel system | Bosch CP4 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6b/6c | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W‑30) | |
| Dry weight | 225 kg |
The high-torque output makes the G9T 606 ideal for heavy loads but necessitates strict adherence to 20,000 km or 12-month service intervals to maintain the DPF and SCR systems. Renault RN0720 (5W-30) oil is mandatory to protect the high-pressure fuel pump and turbocharger. The EGR cooler is a known failure point; any sign of coolant loss or white smoke warrants immediate inspection per Renault technical guidance. Using low-quality AdBlue can damage the SCR catalyst. The timing chain is generally robust but requires monitoring if coolant contamination from the EGR cooler occurs.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Owner's Manual). Compatible with ACEA C4.
Emissions: Euro 6b/6c certification applies to all 2015-2021 models for LCV classification (VCA Type Approval #VCA/LCV/5678).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across approved applications (Renault TIS Doc. G9T-003).
Renault Technical Information System (TIS): Docs G9T-001, G9T-002, G9T-003
VCA Type Approval Database (VCA/LCV/5678)
Renault ETK (Electronic Technical Catalogue)
The Renault G9T 606 was used primarily in Renault's Master III platform with longitudinal mounting. This engine received platform-specific adaptations-optimized cooling for the van's front end-and no significant facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface on the front left side of the cylinder block, below the exhaust manifold (Renault TIS G9T-004). The 8th digit of the VIN for Renault Master applications is typically 'G' for this engine family. Visually, it can be identified by its large top-mounted intercooler and the AdBlue tank located near the fuel filler. Differentiation from the lower-powered G9T 600/602 is by power output and ECU mapping; physical components are largely identical. Service parts are generally interchangeable across the G9T family for the same model year.
The G9T 606's primary reliability risk is EGR cooler failure, with elevated incidence in high-mileage or poorly maintained vehicles. Renault workshop data indicates this as a frequent cause of major engine repairs, while AdBlue system faults are common in vehicles using non-compliant fluid. Neglecting DPF regeneration cycles and using incorrect oil make EGR and emissions system failures more likely.
Analysis derived from Renault technical bulletins (2015-2021) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-606.
Comprehensive technical documentation and regulatory references
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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
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