The Renault M9R 817 is a 2,148 cc, inline‑four turbo‑diesel engine produced between 2018 and 2021. It features a double overhead camshaft (DOHC) 16-valve design with a variable geometry turbocharger (VGT) and high-pressure common rail direct injection. This configuration delivers a robust 120 kW (163 PS) and 380 Nm of torque, providing strong, linear power ideal for highway cruising and everyday efficiency.
Fitted exclusively to the Talisman and Espace V, the M9R 817 was engineered for premium refinement and compliance with the latest emissions regulations. Emissions compliance for its production period was achieved through a diesel particulate filter (DPF), selective catalytic reduction (SCR) with AdBlue injection, and exhaust gas recirculation (EGR), meeting stringent Euro 6d-TEMP standards.
One documented service concern is premature failure of the high-pressure fuel pump's internal pressure regulator, potentially causing hard starting or limp mode. This issue, referenced in Renault Technical Note DIE‑18‑031, is often linked to fuel contamination or extended service intervals. Renault addressed this with revised pump components in later production runs.
Production years 2018–2021 meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/9879).
The Renault M9R 817 is a 2,148 cc inline‑four turbo‑diesel engineered for large sedans and MPVs (2018-2021). It combines DOHC 16-valve architecture with a variable geometry turbocharger to deliver strong, linear power and efficient operation. Designed to meet Euro 6d-TEMP standards, it balances performance with advanced emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,148 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 88.4 mm | |
| Power output | 120 kW (163 PS) @ 3,750 rpm | |
| Torque | 380 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP4 common-rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 15.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0710 (SAE 5W‑40) | |
| Dry weight | 185 kg |
The VGT turbo provides ample low-RPM torque ideal for relaxed driving but demands strict adherence to 20,000 km oil change intervals using RN0710 (5W-40) oil to protect the chain timing system and turbo bearings. Fuel quality meeting EN 590 standards is critical to prevent premature wear of the Bosch CP4 high-pressure pump. The SCR system requires regular use of genuine AdBlue fluid to prevent injector crystallization. DPF regeneration requires regular highway driving; frequent short trips can lead to clogging and limp mode.
Oil Specs: Requires Renault RN0710 (5W-40) specification (Renault Technical Note DIE‑18‑031).
Emissions: Euro 6d-TEMP certification applies to all model years 2018-2021 (VCA Type Approval #VCA/EMS/9879).
Power Ratings: Measured under SAE J1349 standards. Output consistent across specified fuel grades (Renault TIS Doc. 77 11 392 901).
Renault Technical Information System: Docs 77 11 392 901, DIE‑18‑031
VCA Type Approval Database (VCA/EMS/9879)
SAE International: J1349 Engine Power Certification Standards
The Renault M9R 817 was used across Renault's Talisman/Espace V platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Espace for load-bearing-and minor ECU updates for emissions compliance, creating minor software interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface at the front of the engine block, near the gearbox bellhousing (Renault TIS 77 11 392 901). The 8th VIN digit typically corresponds to the engine code 'R'. Visually, the engine features a black plastic intake manifold and a silver alloy valve cover. Critical differentiation from the M9R 802: The M9R 817 has identical displacement but is calibrated for lower power (163 PS vs 177 PS) and meets Euro 6d-TEMP standards. ECU part numbers are specific to this variant and are not interchangeable with M9R 802 without reprogramming (Renault Technical Note ECU-SCR-2018).
The M9R 817's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles subjected to poor fuel quality or extended service intervals. Renault internal service data indicates a notable correlation between pump faults and fuel contamination, while owner reports frequently cite hard starting as the first symptom. Neglecting fuel quality significantly increases the risk of costly pump replacement.
Analysis derived from Renault technical bulletins (2018-2021) and owner-reported failure data (2021-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-817.
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