The Renault M9R 700 is a 2,148 cc, inline‑four turbo‑diesel engine produced between 2006 and 2018. It features a double overhead camshaft (DOHC) 16 — valve design with a variable geometry turbocharger (VGT) and common rail direct injection. This configuration delivers outputs ranging from 110 kW (150 PS) to 130 kW (177 PS), with torque figures between 340 — 380 Nm, providing strong low — end pull for effortless cruising.
Fitted to premium models such as the Laguna III, Mégan…
Production years 2006–2009 meet Euro 4 standards; 2010–2018 models meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/9876).
The Renault M9R 700 is a 2,148 cc inline‑four turbo‑diesel engineered for mid‑size and large MPVs/sedans (2006-2018). It combines DOHC 16-valve architecture with a variable geometry turbocharger to deliver robust low-RPM torque and smooth power delivery. Designed to meet evolving Euro 4 and Euro 5 emissions standards, it balances performance with efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,148 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 88.0 mm × 88.4 mm | |
Power output | 110–130 kW (150–177 PS) | |
Torque | 340–380 Nm @ 2,000 rpm | |
Fuel system | Bosch CP1/CP4 common-rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (2006–2009); Euro 5 (2010–2018) | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Garrett) | |
Timing system | Chain-driven | |
Oil type | Renault RN0700/RN0710 (SAE 5W‑40) | |
Dry weight | 185 kg |
The Renault M9R 700 was used across Renault's Laguna III/Mégane III platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Espace for load-bearing-and from 2010 minor ECU and fuel system updates for emissions compliance, creating minor software and hardware interchange limits. All adaptations are documented in OEM technical bulletins.
The M9R 700's primary reliability risk is EGR valve and cooler clogging, with elevated incidence in vehicles subjected to frequent short trips. Renault internal service data indicates a correlation between incomplete DPF regenerations and EGR system faults, while owner reports frequently cite loss of power as the first symptom. Neglecting highway driving significantly increases the risk of costly EGR and DPF repairs.
Analysis derived from Renault technical bulletins (2008-2016) and owner-reported failure data (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 M9R 700 is generally a robust and powerful engine when maintained correctly. Its main weaknesses are the EGR system and DPF, which require specific driving conditions (regular highway use) to function optimally. With strict adherence to Renault's 20,000 km service schedule, use of RN0700/RN0710 oil, and appropriate driving habits, the engine can easily exceed 250,000 km without major issues.
The most frequent issues are EGR valve/cooler clogging (causing loss of power), DPF regeneration failure (leading to limp mode), high-pressure fuel pump failure (preventing start), and turbo actuator failure (causing boost control issues). These are well-documented in Renault service bulletins and owner forums.
The M9R 700 2.0L dCi engine was primarily used in the Renault Laguna III (2007-2015), Mégane III (2008-2015), Scénic III (2009-2015), and Espace IV (2006-2014). It was typically found in higher-performance trims like dCi 150 and dCi 175, offering strong torque for these larger vehicles.
Yes, the M9R 700 responds very well to tuning. ECU remaps can safely yield an extra 30-50 kW and 100+ Nm of torque, transforming performance. The stock internals, including the turbo and injectors, are quite capable. Popular upgrades include a larger intercooler and a decat or sports catalyst to support higher power levels.
Real-world fuel economy is very good for its power output. Expect around 7.0 L/100km (40 mpg UK) in mixed driving for a Laguna or Espace, and slightly better, around 6.5 L/100km (43 mpg UK), in the lighter Mégane or Scénic. Highway cruising can return figures close to 5.5 L/100km (51 mpg UK) when driven gently.
Yes. The M9R 700 is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the chain is very durable with proper maintenance using the correct oil.
Renault mandates the use of RN0700 or RN0710 specification oil, typically SAE 5W-40 viscosity. Using this specific oil is crucial for the longevity of the timing chain, turbocharger, and emissions systems. Always use a high-quality, fully synthetic oil that meets this standard and change it every 20,000 km or annually.
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
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
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