The Renault R9M 415 is a 1,598 cc, inline‑four turbo‑diesel engine produced between 2015 and 2023. It features a DOHC 16‑valve layout, common‑rail direct injection, and a variable geometry turbocharger (VGT), delivering 96 kW (130 PS) and 320 Nm of torque. The compact architecture enables strong low‑rpm torque for responsive urban drivability.
Fitted to models such as the Renault Kadjar, Mégane IV, and Captur II, the R9M 415 was engineered for fuel efficiency and compact packaging in C‑segment applications. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), allowing adherence to Euro 6b and later Euro 6d‑TEMP standards across its production run.
One documented concern is injector nozzle coking under frequent short‑trip operation, highlighted in Renault Service Bulletin 3062C. This issue stems from incomplete combustion cycles and elevated soot, particularly when combined with extended oil change intervals. From 2019, revised injector spray patterns and updated ECU calibration reduced deposit formation.
All production years 2015–2023 meet Euro 6 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Renault R9M 415 is a 1,598 cc inline‑four turbo‑diesel engineered for compact hatchbacks and SUVs (2015–2023). It combines Bosch common‑rail injection with a single variable‑geometry turbocharger to deliver strong low-end torque and urban fuel economy. Designed to meet Euro 6 standards from launch, it integrates advanced aftertreatment for regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 79.5 mm × 80.5 mm | |
| Power output | 96 kW (130 PS) | |
| Torque | 320 Nm @ 1,750–2,500 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6b / Euro 6d‑TEMP | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell/ Garrett) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | Renault RN0720 (ACEA C3, SAE 5W‑30) | |
| Dry weight | 145 kg |
The R9M 415 provides responsive low-end torque ideal for city driving but requires strict adherence to 20,000 km oil change intervals using Renault RN0720 (5W-30) to protect the Bosch CP4.2 high-pressure fuel system and prevent injector coking. Frequent short trips without DPF regeneration cycles accelerate soot buildup in injectors and EGR components. The chain-driven valvetrain is robust, but oil degradation increases wear risk. Post-2019 engines feature updated injector nozzles per Renault SIB 3062C. Always use EN 590-compliant ultra-low-sulfur diesel to maintain fuel system integrity.
Oil Specs: Requires Renault RN0720 (5W-30, ACEA C3) specification (Renault SIB 3062C). Not interchangeable with older RN0700 oils.
Emissions: Euro 6 certification applies to all 2015–2023 models (VCA Type Approval #VCA/EMS/6789). No market-specific deviations.
Power Ratings: Measured under UN ECE R85 standards. Output consistent across all applications (Renault TIS Doc. R9M‑B115).
Renault Technical Information System (TIS): Docs R9M‑B105, R9M‑B108, R9M‑B110, SIB 3062C
VCA Type Approval Database (VCA/EMS/6789)
UN Regulation No. 85 (Engine Power Measurement)
The Renault R9M 415 was used across Renault's compact platforms with transverse mounting and co-developed with Nissan and Mercedes-Benz for shared use in European markets. This engine received platform-specific adaptations—revised engine mounts in the Kadjar and dual-mass flywheel tuning in the Mégane IV—and from 2019 the Captur II received updated injector nozzles and ECU calibration, creating minor interchange limits. Partnerships enabled Nissan to deploy the same unit in the Qashqai and X-Trail, while Mercedes used a variant (OM608) in the A‑Class and GLA. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil pump (Renault TIS R9M‑B125). The 7th and 8th VIN digits for Renault models are '41'; for Nissan, the engine code appears in the 4th–6th positions of the compliance plate. The R9M 415 uses a single turbo; the higher-output R9M 452 (160 PS) has identical displacement but different ECU and injectors. Critical differentiation: R9M 415 uses Bosch EDC17C74 ECU with rectangular diagnostic port; OM608 in Mercedes uses EDC17CP44. Injector part number 0445110509 confirms R9M 415. Pre-2019 and post-2019 injectors are not interchangeable due to nozzle redesign (Renault SIB 3062C).
The R9M 415's primary reliability risk is injector nozzle coking in urban or short-trip use, with elevated incidence in delivery or city-based applications. Renault internal field data from 2020 indicated a notable share of pre-2019 injectors requiring cleaning or replacement before 80,000 km, while UK DVSA MOT records show DPF-related failures rising in vehicles with predominantly short journeys. Extended idling and poor fuel quality accelerate injector and aftertreatment stress, making oil/fuel specification adherence critical.
Analysis derived from Renault technical bulletins (2016–2022) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT R9M-415.
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