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 compac…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The R9M 415 offers strong low-end torque and Euro 6 compliance, but early units (2015–2018) had injector coking concerns under urban use. Post-2019 revisions improved injector durability significantly. With correct oil (RN0720), quality ULSD, and regular highway driving to enable DPF regeneration, well-maintained examples can exceed 200,000 km.
Top issues include injector nozzle coking, DPF regeneration failures from short trips, EGR valve sticking, and turbo actuator drift. These are documented in Renault SIB 3062C and Nissan TSB NTB19-032. Fuel quality and driving pattern heavily influence longevity.
The R9M 415 powers the Renault Mégane IV, Kadjar, and Captur II (dCi 115/130 variants) from 2015–2023. It’s also used in the Nissan Qashqai, X-Trail, and Mercedes-Benz A 180 d / GLA 180 d. All meet Euro 6 from launch.
Yes. ECU remaps typically yield +15–25 kW and +50–70 Nm on stock hardware. The engine responds well to stage 1 tuning, but injector and turbo durability must be monitored. Supporting upgrades (intake, exhaust, intercooler) improve reliability under increased load.
In a Renault Mégane dCi 130, expect ~5.8 L/100km (city) and ~4.2 L/100km (highway), or ~55 mpg UK combined. Real-world figures vary by load and route—compact hatchbacks average 50–60 mpg UK. DPF health and driving style significantly affect consumption.
Yes. The R9M series uses an interference design. Timing chain failure or jump can cause piston-to-valve contact, resulting in catastrophic damage. However, the front-mounted chain is robust; no widespread timing issues are documented in OEM bulletins.
Renault specifies RN0720 (5W-30, ACEA C3) oil. This low-SAPS formulation protects the DPF and turbo. Change every 20,000 km or annually. Using non-approved oil risks aftertreatment clogging and injector wear.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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