The Renault M9R 782 is a 2,188 cc, inline‑four turbo‑diesel engine produced between 2015 and 2020. It features a cast‑iron block, aluminum cylinder head, dual overhead camshafts (DOHC), and 16 valves. Power output is typically 140 kW (190 PS) with 400 Nm of torque, delivered via a common rail direct injection system and a variable‑geometry turbocharger.
Fitted to models like the Espace V, Talisman, and Koleos II, the M9R 782 was engineered for strong, refined performance and improved fuel efficiency, suiting executive and family vehicles. Emissions compliance for its production run was Euro 6, achieved through a diesel particulate filter (DPF) and selective catalytic reduction (SCR) using AdBlue.
One documented reliability concern involves the exhaust pressure differential sensor, which can provide faulty readings leading to incorrect DPF regeneration cycles. This issue, referenced in Renault Technical Note MEC 0389, is often linked to sensor contamination or electrical faults in the sensor circuit.
Production years 2015–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/8901).
The Renault M9R 782 is a 2,188 cc inline‑four turbo‑diesel engineered for mid‑size and large vehicles (2015-2020). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong, linear torque and improved efficiency. Designed to meet Euro 6 standards, it balances performance with the strictest emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,188 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 90.0 mm | |
| Power output | 140 kW (190 PS) | |
| Torque | 400 Nm @ 1,750 rpm | |
| Fuel system | Common rail direct injection (Bosch) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable‑geometry turbo (Garrett) | |
| Timing system | Chain‑driven | |
| Oil type | Renault RN0710 (SAE 5W‑30) | |
| Dry weight | 200 kg |
The variable-geometry turbo provides strong, responsive torque ideal for overtaking and motorway cruising but requires strict adherence to 20,000 km oil change intervals using RN0710 (5W-30) to protect the turbo and emissions systems. Ultra-low sulfur diesel (ULSD) is mandatory. The AdBlue system requires regular refilling; neglect can trigger torque reduction. The exhaust pressure sensor is critical for DPF function; contamination can lead to incorrect regeneration and should be checked if DPF warning lights appear, per Renault Technical Note MEC 0389.
Oil Specs: Requires Renault RN0710 (5W-30) low-SAPS specification (Renault Technical Note MEC 0389). Compatible with ACEA C4.
Emissions: Euro 6 certification applies to all 2015–2020 models (VCA Type Approval #VCA/EMS/8901).
Power Ratings: Measured under ECE R85 standards. Output is consistent across model range (Renault Group PT-2018).
Renault Technical Information System: Manuals 60R, Notes MEC 0389
VCA Type Approval Database (VCA/EMS/8901)
ECE Regulation No. 85 - Engine Power Measurement
The Renault M9R 782 was used across Renault's Espace/Talisman platforms with transverse mounting. This engine received platform-specific adaptations-different engine mounts for the Koleos-and featured minor ECU updates for emissions compliance, though core mechanicals remained unchanged. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface on the front of the cylinder block, near the gearbox flange (Renault Technical Manual 60R). The 8th digit of the VIN typically corresponds to the engine code ('M' for M9R series). Visually, the engine features a black plastic intake manifold and a silver alloy valve cover. Critical differentiation from the M9R 746: The M9R 782 has a higher power output (190 PS vs 177 PS) and is paired exclusively with Euro 6 emissions equipment, including a more advanced SCR system. Service parts like the exhaust pressure sensor are specific to the M9R 782.
The M9R 782's primary reliability risk is exhaust pressure differential sensor failure, with elevated incidence in vehicles with high mileage or exposure to harsh conditions. Renault internal data indicates sensor replacement is a common diagnostic procedure, while UK DVSA records show SCR/AdBlue system faults are a frequent cause of emissions-related failures. Using correct fuel and adhering to the RN0710 oil specification are critical to mitigate these risks.
Analysis derived from Renault technical bulletins (2015-2020) and UK DVSA failure statistics (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-782.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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