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 Op…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The G9T 606 is generally robust for commercial use, but its long-term reliability hinges on meticulous maintenance. The EGR cooler is a known weak point, and neglecting the AdBlue or DPF systems leads to expensive failures. With strict adherence to service schedules and correct fluids, it can achieve high mileage reliably.
The most frequent issues are EGR cooler leaks causing coolant loss, AdBlue system faults from poor-quality fluid, DPF clogging due to short journeys, and turbo actuator failures. These are well-documented in Renault service information and technical forums for commercial vehicles.
The G9T 606 was used almost exclusively in the Renault Master III (Phase 2) van from 2015 to 2021, badged as the dCi 170. It was also fitted to its platform siblings: the Nissan NV400 and the Opel/Vauxhall Movano B, all sharing the same 190 PS output.
Yes, ECU remapping is common for the G9T 606, often increasing power to 210-230 PS and torque to 420-450 Nm. The engine's internals are strong enough for moderate stage 1 tunes. However, increased power puts more stress on the turbo, clutch, and transmission, requiring careful consideration for commercial use.
Fuel economy is respectable for a large van. In a Renault Master with a gross weight of 3.5 tonnes, expect 32-38 mpg (UK) or 7.4-8.8 L/100km on a mixed cycle. Highway driving can yield up to 40 mpg (UK), while urban, stop-start driving with a heavy load will be significantly lower.
Yes. Like virtually all modern engines, the G9T 606 is an interference design. If the timing chain were to fail (though rare), the pistons would collide with the open valves, causing catastrophic internal engine damage requiring a full rebuild or replacement.
Renault mandates the use of RN0720 specification oil, typically a 5W-30 synthetic. This low-SAPS (Sulphated Ash, Phosphorus, Sulphur) oil is critical for protecting the DPF and SCR systems from clogging and ensuring the longevity of the turbocharger and fuel system.
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.