The Renault G9T 712 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2018 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 110 kW (150 PS) and 340 Nm of torque, offering a balance of efficiency and load — carrying capability for commercial use.
Fitted predominantly to the Renault Master van and its badge — engineered counterpa…
All production years 2018–2021 meet Euro 6d-TEMP standards for light commercial vehicles (VCA UK Type Approval #VCA/LCV/5679).
The Renault G9T 712 is a 2,299 cc inline‑four turbo‑diesel engineered for light commercial vehicles (2018-2021). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver efficient torque for urban and highway operation. Designed to meet Euro 6d-TEMP standards, it prioritizes emissions compliance and fuel economy for fleet operators.
| 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 | 110 kW (150 PS) | |
Torque | 340 Nm @ 1,500 rpm | |
Fuel system | Bosch CP4 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP | |
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 712 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 712's primary reliability risk is EGR valve carbon buildup, with elevated incidence in stop-start urban driving. Renault workshop data indicates this as a frequent cause of emissions-related faults, while AdBlue system issues 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 (2018-2021) and UK DVSA failure statistics (2019-2023). Repair procedures should follow manufacturer guidelines.
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The G9T 712 is generally reliable for its intended commercial use, provided maintenance is meticulous. The most common failure point is the EGR valve due to carbon buildup, particularly in urban driving. Adhering to service schedules and using the correct fluids significantly improves long-term reliability and prevents costly emissions system failures.
The most frequent issues are EGR valve sticking due to carbon deposits, AdBlue system faults from poor-quality fluid, DPF clogging from short journeys, and occasional turbo actuator failures. These are well-documented in Renault service information and are common across many modern diesel engines with similar emissions systems.
The G9T 712 was used almost exclusively in the Renault Master III (Phase 2) van from 2018 to 2021, badged as the dCi 150. It was also fitted to its platform siblings: the Nissan NV400 and the Opel/Vauxhall Movano B, all sharing the same 150 PS output specification for this variant.
Yes, ECU remapping is possible for the G9T 712, often increasing power to 170-180 PS and torque to 380-400 Nm. The engine's internals are robust enough for a moderate stage 1 tune. However, increased power and torque put additional stress on the clutch, transmission, and emissions systems, which is a significant consideration for commercial vehicles where reliability is paramount.
Fuel economy is good for a large van. In a Renault Master with a gross weight of 3.5 tonnes, expect 34-40 mpg (UK) or 7.1-8.3 L/100km on a mixed cycle. Highway driving can yield up to 42 mpg (UK), while urban, stop-start driving with a heavy load will be lower, around 28-32 mpg (UK).
Yes. Like virtually all modern engines, the G9T 712 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 components.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
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Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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GOV.UK: Vehicle Approval
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