The Renault M9R 756 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2015 and 2021. It features a double overhead camshaft (DOHC) 16‑valve layout, common rail direct injection, and a twin‑scroll turbocharger. This configuration delivers outputs of 140 kW (190 PS) and 400 Nm of torque, with the twin‑scroll design minimizing turbo lag for responsive urban acceleration.
Fitted to premium models such as the Talisman and Espace V, the M9R 756 was engineered for refined, powerful cruising and strong towing capability. Emissions compliance was achieved through a selective catalytic reduction (SCR) system with AdBlue injection and a diesel particulate filter (DPF), meeting Euro 6 standards for its entire production run.
One documented concern is premature failure of the high-pressure fuel pump, potentially causing engine stalling or no-start conditions, referenced in Renault Technical Note MEC 15C. This issue is often linked to fuel contamination or extended service intervals affecting pump lubrication. Renault addressed this with revised pump internals for service replacements.
Production years 2015–2021 meet Euro 6 standards for all markets (EU Regulation (EC) No 715/2007).
The Renault M9R 756 is a 2,299 cc inline‑four turbo‑diesel engineered for executive sedans and MPVs (2015-2021). It combines DOHC 16-valve architecture with a twin-scroll turbocharger to deliver strong, linear power and high torque for effortless overtaking. Designed to meet Euro 6 standards, it balances performance with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,299 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 94.6 mm | |
| Power output | 140 kW (190 PS) @ 3,750 rpm | |
| Torque | 400 Nm @ 2,000 rpm | |
| Fuel system | Common rail direct injection (Bosch) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 15.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-scroll turbocharger | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W-30) | |
| Dry weight | Not specified in public documentation |
The twin-scroll turbo provides strong, linear power ideal for highway driving but requires strict adherence to 15,000 km or annual oil change intervals to prevent high-pressure fuel pump failure and turbo degradation. Renault RN0720 (5W-30) oil is critical due to its specific additive package protecting the chain and turbo components. The engine is an interference design; any timing chain failure can cause catastrophic valve damage. The SCR system requires regular AdBlue top-ups; ignoring warnings can trigger a no-start condition. Fuel quality is paramount to prevent high-pressure pump failure.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Technical Note MEC 15C). ACEA C3 is the minimum acceptable standard.
Emissions: Euro 6 certification applies to all production years (2015-2021) (EU Regulation (EC) No 715/2007).
Power Ratings: Measured under EEC 80/1269 standards. Output figures are consistent across documented variants (Renault Technical Note MEC 15C).
Renault Service Manual (Ref. 77 11 308 990)
Renault Technical Note MEC 15C
EU Regulation (EC) No 715/2007
EEC Directive 80/1269 (Engine Power Measurement)
The Renault M9R 756 was used across Renault's Talisman and Espace V platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for the Espace-but no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front of the cylinder block, near the gearbox flange (Renault Service Manual 77 11 308 990). The 8th digit of the VIN typically corresponds to the engine code 'M9R'. Visually, the engine is identified by its black plastic intake manifold and the 'dCi' and '2.3' badges on the cam cover. Critical differentiation from the M9R 721: The M9R 756 has a larger displacement (2.3L vs 2.0L) and features a twin-scroll turbocharger. Service parts for the high-pressure fuel pump are specific to the M9R 756.
The M9R 756's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles with irregular service or poor fuel quality. Renault internal data indicates fuel system faults are a common cause for diagnostic intervention, while owner reports frequently cite AdBlue system malfunctions. Extended service intervals and use of incorrect fuel make pump replacement and AdBlue system checks critical.
Analysis derived from Renault technical bulletins (2015-2021) and owner-reported failure data (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-756.
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