The Renault M9T 704 is a 2,298 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. Developed jointly with Nissan under the Renault–Nissan Alliance, it features a common‑rail fuel system, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). Power output ranges from 120 kW (163 PS) to 147 kW (200 PS), with torque between 360–450 Nm, providing strong low‑rpm pulling power ideal for commercial and passenger applications.
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Production years 2010–2014 meet Euro 5 standards; 2015–2018 variants comply with Euro 6 (VCA UK Type Approval #VCA/EMS/6789).
The Renault M9T 704 is a 2,298 cc inline‑four turbo‑diesel engineered for light commercial and large passenger vehicles (2010–2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver high torque at low rpm and robust performance under load. Designed to meet Euro 5 and Euro 6 emissions standards, it balances workhorse capability with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,298 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.0 mm × 92.4 mm | |
Power output | 120–147 kW (163–200 PS) | |
Torque | 360–450 Nm @ 1,500–2,500 rpm | |
Fuel system | Denso HP3 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 (2010–2014); Euro 6 (2015–2018) | |
Compression ratio | 15.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (IHI or BorgWarner) | |
Timing system | Chain (front‑mounted; durable design) | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 210 kg |
The Renault M9T 704 was used across Renault's Master III, Trafic III, Movano B, and Alaskan platforms with longitudinal mounting and co-developed with Nissan for shared applications. This engine received platform-specific adaptations—reinforced sump in the Master and revised cooling circuits in the Alaskan—and from 2015 the Euro 6 variants adopted a new EGR cooler and updated DPF control logic, creating interchange limits. Partnerships enabled Nissan to use the same block in the NV400, Primastar, and Navara. All adaptations are documented in OEM technical bulletins.
The M9T 704's primary reliability risk is dual-mass flywheel (DMF) failure, with elevated incidence in stop-start urban use and heavy-load cycles. Renault internal service data (2014) indicated up to 25% of pre-2014 engines required DMF replacement before 150,000 km, while UK DVSA MOT records show EGR-related emissions faults as a common failure mode in high-mileage commercial examples. Frequent cold starts and infrequent oil changes accelerate wear, making adherence to service intervals critical.
Analysis derived from Renault technical bulletins (2010–2018) 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 M9T 704 offers strong torque and durability for commercial use, but early models (2010–2013) are prone to dual-mass flywheel and EGR issues. Later Euro 6 variants (2015+) improved reliability with updated components. Regular oil changes using RN0720 5W-30 and avoiding extended idling greatly extend engine life.
Top issues include dual-mass flywheel wear, EGR cooler clogging, high-pressure fuel pump (Denso HP3) failure, and turbo actuator sticking. These are well-documented in Renault service bulletins RNT/2012/05 and RNT/2013/02, especially in high-mileage or poorly maintained vehicles.
The M9T 704 powered the Master III, Trafic III, Movano B, and Alaskan from 2010–2018. It was also used by Nissan in the NV400, Primastar, and Navara under joint development. Power outputs range from 163 to 200 PS across both brands.
Yes. Stage 1 ECU remaps typically yield +20–30 kW safely on stock hardware, as the M9T internals are robust. Higher stages require upgraded turbo, intercooler, and fuel system. Tuning should include DPF/EGR management and use of high-quality diesel to avoid pump failure.
In a Master III dCi 145, expect ~8.5 L/100km (urban) and ~6.2 L/100km (highway), or ~34 mpg UK combined. Real-world mixed driving typically returns 30–38 mpg (UK), depending on load, driving style, and maintenance condition.
Yes. The M9T series is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain is generally durable with proper oil maintenance.
Renault specifies 5W-30 synthetic oil meeting RN0720 (low-SAPS) standard. This protects the DPF and turbo. Change every 20,000 km or 12 months—whichever comes first—to prevent sludge and fuel pump wear.
Comprehensive technical documentation and regulatory references
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EUR-Lex
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
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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