The Renault R9M 402 is a 1,749 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a single‑scroll variable geometry turbocharger (VGT), Bosch common‑rail direct injection (up to 2,000 bar), and a dual overhead camshaft (DOHC) 16‑valve layout. Output is rated at 96 kW (130 PS) with peak torque of 300 Nm, delivering responsive urban performance with strong low‑rpm pull.
Fitted to models including the Clio V, Captur II, and Arkana, the R9M 402 wa…
All production years (2018–2023) meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/EMS/8435).
The Renault R9M 402 is a 1,749 cc inline‑four turbo‑diesel engineered for compact hatchbacks and SUVs (2018–2023). It combines Bosch common‑rail injection with a single‑scroll variable‑geometry turbocharger to deliver responsive low‑end torque and urban fuel efficiency. Designed to meet Euro 6d-TEMP emissions standards, it balances compact packaging with drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,749 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (single‑scroll VGT) | |
Bore × stroke | 80.0 mm × 87.4 mm | |
Power output | 96 kW (130 PS) | |
Torque | 300 Nm @ 1,750–2,500 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP | |
Compression ratio | 16.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single‑scroll VGT (BorgWarner) | |
Timing system | Chain (front‑mounted; durable design) | |
Oil type | Renault RN0720 (ACEA C3, SAE 5W‑30) | |
Dry weight | 142 kg |
The Renault R9M 402 was used across Renault's Clio V, Captur II, and Arkana platforms with transverse mounting and shared with Nissan for compact applications in European markets. This engine received platform-specific adaptations—revised engine mounts in the Arkana and updated EGR routing in the Captur II—and from 2021 the facelifted Clio V adopted revised injector calibration, creating minor interchange limits. Partnerships allowed Nissan's dCi 130 variants to use identical R9M 402 units. All adaptations are documented in OEM technical bulletins.
The R9M 402's primary reliability risk is injector coking under frequent short-trip operation, with elevated incidence in urban-driven examples. Renault internal data from 2021 indicated a notable share of pre-2020 injectors requiring cleaning or replacement before 80,000 km, while UK DVSA MOT records show DPF-related emissions faults rising in city-driven vehicles. Low exhaust temperatures and poor-quality diesel accelerate carbon buildup, making driving pattern and fuel quality critical.
Analysis derived from Renault technical bulletins (2019–2022) and UK DVSA failure statistics (2020–2023). Repair procedures should follow manufacturer guidelines.
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The R9M 402 offers excellent fuel economy and compact packaging, but pre-2020 models are prone to injector coking if used primarily for short urban trips. Using Renault RN0720 oil and incorporating regular highway driving greatly improves longevity. Post-2020 revisions enhanced injector durability, making later examples more robust for mixed-use driving.
Key issues include injector coking, DPF regeneration faults from short trips, EGR valve sticking, and high-pressure fuel pump wear. These are well-documented in Renault Service Bulletin 6022B and DVSA emissions data, particularly in vehicles with predominantly urban usage patterns.
The R9M 402 powered the Clio V, Captur II, and Arkana from 2019–2023 in dCi 130 variants. Nissan also used it in the Juke (F16) as the dCi 130 engine during overlapping production years, leveraging the Renault-Nissan alliance for compact diesel applications.
Limited tuning potential exists due to emissions constraints. Stage 1 remaps typically yield +10–15 kW, but increase stress on injectors and DPF. Supporting upgrades are rarely cost-effective, and Renault does not endorse performance modifications for this emissions-sensitive engine.
In a Clio dCi 130, expect ~4.9 L/100km city and ~4.0 L/100km highway, or ~58 mpg UK combined. Real-world mixed driving typically returns 48–55 mpg (UK), depending on driving style, DPF regeneration cycles, and trip length. Short urban trips significantly reduce efficiency.
Yes. The R9M series is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain design is generally durable with proper maintenance using correct oil specifications.
Renault specifies SAE 5W-30 oil meeting RN0720 (ACEA C3) standard. This low-SAPS formulation protects the DPF and ensures adequate lubrication for the high-pressure fuel pump. Never use non-approved oils, as they accelerate injector and pump wear.
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