The Renault R9M 409 is a 1,749 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a DOHC 16‑valve layout, common‑rail direct injection, and a variable geometry turbocharger (VGT). In standard form it delivered 96 kW (130 PS) and 300 Nm of torque, with responsive low‑rpm delivery suited to compact and subcompact applications.
Fitted to models such as the Clio V, Captur II, and Arkana—specifically the Blue dCi 130 variants—the R9M 409 was engin…
Production years 2018–2020 meet Euro 6d-TEMP standards; 2021–2023 models comply with Euro 6d (VCA UK Type Approval #VCA/EMS/2018/12543).
The Renault R9M 409 is a 1,749 cc inline‑four turbo‑diesel engineered for compact hatchbacks and crossovers (2018–2023). It combines Bosch CP4.2 common‑rail injection with a single variable‑geometry turbocharger to deliver responsive low-end torque and urban drivability. Designed to meet Euro 6d-TEMP and Euro 6d emissions standards, it integrates SCR/AdBlue technology for NOx control while maintaining fuel efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,749 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 80.0 mm × 87.4 mm | |
Power output | 96 kW (130 PS) | |
Torque | 300 Nm @ 1,750 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP (2018–2020); Euro 6d (2021–2023) | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted) | |
Oil type | Renault RN0720 / ACEA C5 (SAE 0W‑30) | |
Dry weight | 142 kg |
The Renault R9M 409 was used across Renault's Clio V, Captur II, and Arkana platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Captur and compact exhaust routing in the Arkana—and from mid‑2022 the HPFP/cam follower upgrade improved durability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The R9M 409's primary reliability risk is high-pressure fuel pump (HPFP) cam follower wear, with elevated incidence in vehicles subjected to frequent cold starts and short urban trips. Renault internal field data from 2022 indicated over 8% of pre-mid‑2022 engines required HPFP replacement before 100,000 km, while UK DVSA MOT records show SCR-related failures rising after 120,000 km in high-mileage urban fleets. Short-trip driving and poor oil quality accelerate HPFP degradation, making oil discipline and AdBlue purity critical.
Analysis derived from Renault technical bulletins (2018–2022) and UK DVSA failure statistics (2020–2023). 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 409 offers responsive urban performance and low emissions, but pre-mid‑2022 models are prone to HPFP cam follower wear if oil changes are neglected or short-trip driving dominates. Mid‑2022+ revisions improved HPFP durability. Using RN0720/ACEA C5 oil and occasional highway driving greatly enhance longevity.
Top issues include HPFP cam follower wear, SCR/AdBlue system faults, DPF clogging from short trips, and EGR valve carbon buildup. These are documented in Renault service bulletins NTM‑21‑2021 and NTM‑12‑2022, with clear OEM repair paths.
The R9M 409 powered the Clio V (2018–2023), Captur II (2018–2023), and Arkana (2019–2023), all as the Blue dCi 130 variant. It was not used in larger models like Talisman or Espace, nor in Nissan applications.
Yes. Stage 1 ECU remaps typically yield +15–20 kW (20–27 PS) and +40–60 Nm safely, as the internals are robust. However, tuning increases stress on the HPFP and turbo, so RN0720 oil and occasional highway use are essential for sustained performance.
In a Clio Blue dCi 130, expect ~4.8 L/100km (city) and ~3.9 L/100km (highway), or about 62 mpg UK combined. Real-world mixed driving typically returns 55–60 mpg (UK), depending on driving style and DPF regeneration frequency.
Yes. The R9M series is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain is generally reliable with proper maintenance.
Renault specifies SAE 0W‑30 oil meeting RN0720 or ACEA C5 standards. Using non-approved oil risks HPFP failure and increased LSPI potential. Change every 15,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
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