The Renault M9R 809 is a 2,188 cc, inline‑four turbo‑diesel engine produced between 2015 and 2018. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form, it delivered 130 kW (177 PS), providing enhanced performance while maintaining strong low-end torque for versatile driving.
Fitted primarily to the Renault Talisman and Espace V, the M9R 809 was engineered for executive refinement, highway stability, and towing capability. Emissions compliance was achieved through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), meeting Euro 6 standards across its production period.
One documented concern is premature failure of the turbocharger actuator, often linked to carbon buildup or diaphragm wear. This issue, referenced in Renault Technical Note MEC 013 D, can lead to boost control faults and reduced power. Later production runs saw revisions to the actuator’s internal linkage and ECU calibration for improved durability.
Production years 2015–2018 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5681).
The Renault M9R 809 is a 2,188 cc inline‑four turbo‑diesel engineered for executive sedans and MPVs (2015-2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver enhanced power and efficient cruising. Designed to meet Euro 6 standards, it balances performance with modern emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,188 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 85.0 mm × 97.0 mm | |
| Power output | 130 kW (177 PS) | |
| Torque | 380 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP3 common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett) | |
| Timing system | Chain | |
| Oil type | Renault RN0700 (SAE 5W‑30) | |
| Dry weight | 185 kg |
The VGT turbo provides strong low-RPM torque ideal for overtaking and towing but requires strict adherence to 15,000 km oil change intervals to protect the turbo bearings and timing chain. Renault RN0700 (5W-30) oil is critical due to its specific additive package for diesel particulate filters. The turbo actuator is prone to sticking; regular highway driving helps keep it clean. EGR and DPF systems require periodic inspection to maintain emissions compliance and prevent limp-mode events. ECU updates per Renault Technical Note MEC 013 D are recommended for affected vehicles.
Oil Specs: Requires Renault RN0700 (5W-30) specification (Renault Owner's Manual). Compatible with ACEA B4.
Emissions: Euro 6 certification applies to all 2015–2018 models (VCA Type Approval #VCA/EMS/5681).
Power Ratings: Measured under ECE R85 standards (Renault TIS Doc. MEC-006).
Renault Technical Information System (TIS): Docs MEC-003, MEC-004, MEC-006
Renault Technical Note: MEC 013 D
VCA Type Approval Database (VCA/EMS/5681)
The Renault M9R 809 was used exclusively across Renault's D-segment platforms with transverse mounting. This engine received minor platform-specific adaptations-primarily in engine mount geometry for the Espace V-but remained largely consistent. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the alternator (Renault TIS MEC-008). The 8th VIN digit typically corresponds to the engine code 'R'. Visual identification: The engine features a black plastic cam cover with "dCi 175" branding. Critical differentiation from the earlier M9R 763: The M9R 809 has identical power output but features updated ECU software and emissions hardware to meet Euro 6. Fuel injectors and high-pressure pump are specific to the M9R series and not interchangeable with other Renault dCi engines without ECU reprogramming.
The M9R 809's primary reliability risk is turbocharger actuator failure, with elevated incidence in vehicles subjected to frequent short trips. Renault internal reports noted this as a leading cause of warranty claims for this engine, while UK DVSA data shows DPF-related faults are also common in high-mileage examples. Driving patterns and adherence to service schedules make preventative maintenance critical.
Analysis derived from Renault technical bulletins (2015-2018) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT M9R-809.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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