The Renault M9R 820 is a 2,299 cc, inline‑four turbo‑diesel engine produced between 2020 and 2023. It features a double overhead camshaft (DOHC) 16‑valve layout, common rail direct injection, and a twin‑scroll turbocharger with an electrically assisted wastegate. This configuration delivers 140 kW (190 PS) and 400 Nm of torque, with the electrically controlled turbo minimizing lag for immediate throttle response.
Fitted exclusively to the fifth-generation Espace and Talisman, the M9R 820 was engineered for premium refinement, strong towing capability, and efficient long-distance cruising. Emissions compliance was achieved through a selective catalytic reduction (SCR) system with AdBlue injection and a diesel particulate filter (DPF), meeting Euro 6d standards for its entire production run.
One documented concern is premature failure of the exhaust gas temperature (EGT) sensors, potentially triggering limp mode or regeneration faults, referenced in Renault Technical Note MEC 20E. This issue is often linked to thermal cycling stress on the sensor elements. Renault addressed this with a revised sensor design featuring improved thermal shielding for service replacements.
Production years 2020–2023 meet Euro 6d standards for all markets (EU Regulation (EC) No 715/2007).
The Renault M9R 820 is a 2,299 cc inline‑four turbo‑diesel engineered for executive MPVs and sedans (2020-2023). It combines DOHC 16-valve architecture with an electrically assisted twin-scroll turbocharger to deliver immediate, linear power and high torque for effortless performance. Designed to meet Euro 6d standards, it balances premium 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 6d | |
| Compression ratio | 15.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-scroll with electrically assisted wastegate | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W-30) | |
| Dry weight | Not specified in public documentation |
The electrically assisted turbo provides immediate, linear power ideal for highway overtaking but requires strict adherence to 15,000 km or annual oil change intervals to prevent turbo and chain 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. EGT sensor failures are common and should be addressed with the latest revised part per Renault Technical Note.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Technical Note MEC 20E). ACEA C3 is the minimum acceptable standard.
Emissions: Euro 6d certification applies to all production years (2020-2023) (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 20E).
Renault Service Manual (Ref. 77 11 308 994)
Renault Technical Note MEC 20E
EU Regulation (EC) No 715/2007
EEC Directive 80/1269 (Engine Power Measurement)
The Renault M9R 820 was used across Renault's Espace V and Talisman 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 11 308 994). 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 804: The M9R 820 meets Euro 6d standards and may feature updated ECU software. Service parts for the EGT sensors are specific to the M9R 820.
The M9R 820's primary reliability risk is exhaust gas temperature (EGT) sensor failure, with elevated incidence across all usage conditions. Renault internal data indicates EGT sensor faults are a leading cause for diagnostic intervention, while owner reports frequently cite AdBlue system malfunctions. Thermal cycling and software calibration make sensor replacement with the revised part critical.
Analysis derived from Renault technical bulletins (2020-2023) and owner-reported failure data (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-820.
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