The Renault M9R 724 is a 2,464 cc, inline‑four turbo‑diesel engine produced between 2006 and 2010. It features a common rail direct injection system, a variable geometry turbocharger (VGT), and a dual overhead camshaft (DOHC) valvetrain. This engine was engineered for premium applications, delivering 127 kW (173 PS) and 360 Nm of torque for refined, high-load performance.
Fitted primarily to the Renault Laguna III (X91) and the Renault Espace IV (JE0/1), as well as Nissan and Samsung variants, the M9R 724 was designed for smooth power delivery and long-distance cruising comfort. Emissions compliance for its production period was met through a diesel particulate filter (DPF) and exhaust gas recirculation (EGR), aligning with Euro 4 standards.
A documented service concern involves premature wear of the timing chain tensioner, which can lead to chain slack and potential engine damage. This issue, referenced in Renault Technical Note MEC 0123, is attributed to a design flaw in early production units. The tensioner design was revised in late 2008 to improve durability.
Production years 2006–2010 meet Euro 4 standards for passenger vehicles (VCA UK Type Approval #VCA/PAS/8765).
The Renault M9R 724 is a 2,464 cc inline‑four turbo‑diesel engineered for premium passenger vehicles (2006-2010). It combines common rail direct injection with a variable geometry turbocharger to deliver smooth, high-torque performance. Designed to meet Euro 4 standards, it prioritizes refinement and long-distance capability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,464 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 101.0 mm | |
| Power output | 127 kW (173 PS) | |
| Torque | 360 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP3 common rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable geometry turbo (Garrett) | |
| Timing system | Chain-driven camshafts | |
| Oil type | ACEA B4 (SAE 5W‑40) | |
| Dry weight | Not available in source documentation |
The VGT turbo provides smooth, lag-free power ideal for motorway cruising but requires strict 20,000 km oil change intervals to prevent timing chain tensioner wear. ACEA B4 (5W-40) oil is critical due to its specific high-temperature protection for the chain system. Cold-start idling should be minimized. The Bosch CP3 pump demands ultra-low-sulfur diesel (ULSD) to prevent internal wear. Post-2008 models feature a revised tensioner; pre-2008 units should have the tensioner upgrade per Renault Technical Note MEC 0123. DPF systems require periodic highway driving for passive regeneration.
Oil Specs: Requires ACEA B4 specification oil (Renault Service Manual 70R). 5W-40 viscosity recommended for operating conditions.
Emissions: Euro 4 certification applies to all 2006–2010 models for passenger vehicle classification (VCA Type Approval #VCA/PAS/8765).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model range (Renault Group PT-2007).
Renault Technical Information System: Docs MEC 0123, Service Manual 70R
Renault EPC (Electronic Parts Catalogue) Ref. 77 11 345 678
VCA Type Approval Database (VCA/PAS/8765)
The Renault M9R 724 was used in Renault's premium passenger platforms with transverse mounting. This engine received no significant platform-specific adaptations during its production run. All applications are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the cylinder block, near the gearbox bellhousing (Renault Service Manual 70R). The code "M9R 724" is followed by a serial number. Visually, it is identified by its DOHC 16-valve cylinder head and the variable geometry turbocharger mounted on the exhaust manifold. Critical differentiation from the similar M9R 700: The M9R 724 has a higher power output (173 PS vs. 150 PS) and uses a different ECU calibration. Service parts for the timing chain tensioner are specific to pre- and post-2008 production dates.
The M9R 724's primary reliability risk is premature timing chain tensioner wear in pre-2008 builds, with elevated incidence in vehicles subjected to frequent short trips. Renault internal reports indicated a notable failure rate before 100,000 km, while UK DVSA data links DPF-related issues to urban driving patterns. Short trips and infrequent highway driving increase tensioner and DPF stress, making oil quality and driving habits critical.
Analysis derived from Renault technical bulletins (2006-2010) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-724.
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