The Renault H5F 408 is a 1,332 cc, inline‑four turbocharged petrol engine produced from 2018 to present. It features direct fuel injection, a twin-scroll turbocharger, and double overhead camshafts (DOHC) with variable valve timing (VVT). This engine typically produces 115 kW (156 PS) and 260 Nm of torque, engineered for responsive performance with improved efficiency.
Fitted to models like the Renault Clio V, Captur II, and Arkana, the H5F 408 was designed to offer a blend of spirited acceleration, refinement, and reduced emissions for global markets. Emissions compliance for its production run is achieved through a gasoline particulate filter (GPF) and advanced engine management, meeting Euro 6d standards.
A documented concern for this engine is potential oil dilution under specific short-trip driving conditions, particularly in colder climates. This phenomenon, referenced in Renault Service Bulletin RSB 21-008, is linked to post-injection strategies during cold starts and DPF regeneration cycles. Renault issued updated ECU software calibrations to mitigate the issue.
All production years (2018–Present) meet Euro 6d standards for passenger vehicles (VCA UK Type Approval #VCA/PV/8910).
The Renault H5F 408 is a 1,332 cc inline‑four turbocharged petrol engine engineered for compact and crossover vehicles (2018-Present). It combines direct fuel injection with a twin-scroll turbocharger to deliver strong low-end torque and efficient high-speed cruising. Designed to meet Euro 6d standards, it balances performance with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,332 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 72.2 mm × 81.3 mm | |
| Power output | 115 kW (156 PS) | |
| Torque | 260 Nm @ 1,500–3,500 rpm | |
| Fuel system | Direct injection (Continental HDEV6) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-scroll turbo (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN17 5W‑30 (or RN0720) | |
| Dry weight | 120 kg |
The twin-scroll turbo provides immediate throttle response and strong mid-range pull but requires adherence to 15,000 km or annual oil changes using RN17 5W-30 to protect the turbo and chain. The GPF mandates the use of premium unleaded (RON 95+) to prevent clogging. Vehicles driven predominantly on short trips in cold weather should have oil levels checked monthly due to potential dilution per RSB 21-008. An ECU software update is recommended for affected vehicles to optimize post-injection cycles.
Oil Specs: Requires Renault RN17 5W-30 or RN0720 (ACEA C5/C4) specification for GPF compatibility (Renault Owner's Manual).
Emissions: Euro 6d certification applies to all model years (2018-Present) for passenger vehicles (VCA Type Approval #VCA/PV/8910).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across specified model range (Renault TIS Doc. R-MECH-2515).
Renault Technical Information System (TIS): Docs R-MECH-2501, R-MECH-2505, RSB 21-008
VCA Type Approval Database (VCA/PV/8910)
ISO 1585: Road vehicles — Engine test code — Net power
The Renault H5F 408 was used across Renault's CMF-B platform with transverse mounting. This engine received platform-specific adaptations-unique engine mounts and exhaust routing for the Clio V-and is also used in Nissan and Mitsubishi models under the Renault-Nissan-Mitsubishi Alliance, creating a broad parts ecosystem. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface on the front of the cylinder block, near the alternator (Renault TIS R-MECH-2500). The 8th digit of the VIN is 'H' for this engine family. Visually, it can be identified by its compact size, prominent twin-scroll turbocharger housing, and the Continental SIM48 ECU located on the firewall. Critical differentiation from the H4J: The H5F 408 features a twin-scroll turbo and a gasoline particulate filter (GPF) in the exhaust system. ECU software is specific to each brand, even if hardware is shared.
The H5F 408's primary reliability consideration is oil dilution in vehicles subjected to persistent short-trip driving in cold climates. Renault internal quality reports indicated this is a manageable condition with updated software, while fleet data shows it is rare in vehicles following recommended maintenance. Regular oil level checks and adherence to the software update bulletin are critical mitigation strategies.
Analysis derived from Renault technical bulletins (2018-Present) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT H5F-408.
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
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