The Renault M9R 630 is a 2,148 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. It features a dual overhead camshaft (DOHC) 16‑valve layout, common rail direct injection, and a variable geometry turbocharger (VGT). In its primary 110 kW (150 PS) tune, it delivers 340 Nm of torque, engineered for strong low‑end pulling power ideal for heavier vehicles.
Fitted predominantly to the Koleos II, Espace V, and Talisman, the M9R 630 was designed for refined, lo…
Production years 2010–2014 meet Euro 5 standards; 2015–2018 models meet Euro 6 compliance depending on market .
The Renault M9R 630 is a 2,148 cc inline‑four turbo‑diesel engineered for mid‑size SUVs and executive sedans (2010-2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong, accessible torque and efficient highway cruising. Designed to meet Euro 5 and Euro 6 standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,148 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 85.0 mm × 95.0 mm | |
Power output | 110 kW (150 PS) @ 4,000 rpm | |
Torque | 340 Nm @ 1,750 rpm | |
Fuel system | Denso HP4 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 (2010–2014); Euro 6 (2015–2018) | |
Compression ratio | 15.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted; tensioner wear‑prone) | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 168 kg |
The Renault M9R 630 was used across Renault's Koleos II and Espace V platforms with transverse mounting. This engine received platform-specific adaptations-slightly different exhaust manifolds for the Talisman-but no major facelift revisions affecting core compatibility occurred during its production run. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The M9R 630 is generally robust, but its main weakness is the timing chain tensioner, particularly on pre-2014 models. With regular oil changes using RN0720 specification oil and addressing the tensioner proactively if rattle is heard, these engines can reliably exceed 200,000 km. The timing chain itself is durable when properly tensioned.
The most frequent issues are timing chain tensioner wear (causing rattle), EGR valve/carbon buildup, DPF regeneration problems (often from short trips), and VGT turbo actuator failure. These are well-documented in Renault service bulletins and are common across many modern diesel engines.
The M9R 630 2.1L dCi 150 engine was used in the Renault Koleos II (2016-2018), Espace V (2015-2018), and Talisman (2015-2018). It was typically the higher-output diesel option in these models, positioned above the 130 PS variants.
Aftermarket ECU tuning is common on the M9R-630 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Real-world fuel economy is good for its size and power. Expect around 7.0 L/100km (40 mpg UK) in combined driving for an Espace or Talisman. Highway cruising can see figures closer to 5.5 L/100km (51 mpg UK), while city driving may be 9.0 L/100km (31 mpg UK) or higher, depending on traffic and driving style.
Yes. The M9R 630 is an interference engine. If the timing chain were to fail or jump significantly due to tensioner wear, the pistons would collide with the open valves, causing catastrophic internal damage. This underscores the importance of addressing any timing chain rattle immediately.
Renault specifies RN0720 specification oil, typically SAE 5W-30 viscosity. This low-SAPS (Sulphated Ash, Phosphorus, Sulphur) oil is crucial for protecting the DPF and ensuring the longevity of the timing chain system. Oil should be changed every 20,000 km or annually.
Comprehensive technical documentation and regulatory references
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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
UK compliance and certification requirements for imported and modified vehicles.
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Type-approval guidance and documentation.
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