Engine Code

Renault H5F-408 Engine (2018–Present) – Specs, Problems & Compatibility Database

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 bl

Renault Engine
Compliance Note:

All production years (2018–Present) meet Euro 6d standards for passenger vehicles (VCA UK Type Approval #VCA/PV/8910).

Renault H5F-408 Technical Specifications

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.

ParameterValueSource
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

Renault H5F-408 Compatible Models

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.

Make:
Renault
Years:
2019–Present
Models:
Clio V (HB0/1)
Variants:
TCe 150
View Source
Renault Group PT-2023
Make:
Renault
Years:
2019–Present
Models:
Captur II (HA0/1)
Variants:
TCe 150
View Source
Renault Group PT-2023
Make:
Renault
Years:
2019–Present
Models:
Arkana (HA0/1)
Variants:
TCe 150
View Source
Renault Group PT-2023
Make:
Nissan
Years:
2019–Present
Models:
Juke (F16)
Variants:
1.3 DiG-T 150
View Source
Nissan EPC #N-EP-2023
Make:
Mitsubishi
Years:
2023–Present
Models:
ASX (GA4W)
Variants:
1.3 MIVEC Turbo 150
View Source
Mitsubishi Service Manual #MSM-GA4W

Common Reliability Issues - RENAULT H5F-408 Compatible Models

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.

Oil dilution (fuel in oil)
Symptoms: Rising oil level on dipstick, fuel smell from oil cap, potential check engine light for misfires or lambda sensor faults.
Cause: Unburned fuel entering the crankcase during frequent cold starts and active DPF/GPF regeneration cycles, particularly on short journeys.
Fix: Install the latest ECU software calibration per service bulletin RSB 21-008. Check and change oil if level is significantly above max mark. Avoid persistent short trips; allow engine to reach full operating temperature regularly.
High-pressure fuel pump (HPFP) noise/failure
Symptoms: Loud buzzing or whining noise from engine bay, especially at idle or low RPM. May trigger fuel pressure-related DTCs or cause hard starting.
Cause: Internal wear or failure of the Continental HDEV6 high-pressure fuel pump, potentially accelerated by poor fuel quality or infrequent filter changes.
Fix: Replace the high-pressure fuel pump assembly with a new OEM unit. Always replace the fuel filter simultaneously and inspect fuel lines for contamination.
GPF (Gasoline Particulate Filter) clogging
Symptoms: Loss of power, increased fuel consumption, warning light for emissions system, forced regeneration cycles with high idle.
Cause: Accumulation of soot in the GPF due to predominantly short trips, low-quality fuel, or aggressive driving preventing passive regeneration.
Fix: Perform a forced regeneration using manufacturer diagnostic equipment. If regeneration fails, the GPF may need cleaning or replacement. Use only premium (RON 95+) fuel.
Turbocharger actuator failure
Symptoms: Loss of boost, overboost/underboost codes, whistling noise, increased fuel consumption, potential limp mode.
Cause: Wear or sticking in the electronic actuator mechanism controlling the wastegate, often due to heat cycles and carbon buildup.
Fix: Replace the turbocharger actuator or the entire turbo assembly if vanes are seized. Recalibrate using manufacturer diagnostic software.
Research Basis

Analysis derived from Renault technical bulletins (2018-Present) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.

RENAULT H5F-408 FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The H5F 408 is a modern, efficient engine with robust hardware. Its main consideration is potential oil dilution under specific cold-weather, short-trip conditions, which is largely mitigated by the RSB 21-008 software update. With regular oil changes using the correct specification and allowing the engine to warm up fully, these engines are expected to be very reliable for high mileages.

The most discussed issue is oil dilution in specific driving conditions, addressed by a software update. Other potential issues include high-pressure fuel pump noise, GPF clogging from short trips, and occasional turbo actuator faults. These are documented in Renault service bulletins and are generally manageable with proper maintenance.

The H5F 408 is used in the fifth-generation Renault Clio (HB0/1), second-generation Renault Captur (HA0/1), and Renault Arkana (HA0/1) from 2019 onwards. It is also found in the Nissan Juke (F16) and the latest Mitsubishi ASX (GA4W), as part of the Renault-Nissan-Mitsubishi Alliance.

Yes, the H5F 408 responds very well to ECU remapping. Stage 1 tunes can safely increase power to 180-200 PS and torque to 280-300 Nm. The engine, turbo, and internals are robust. Supporting modifications like an upgraded intercooler are recommended for higher stages to ensure reliability and manage heat soak.

Fuel economy is excellent for its performance. In a Renault Clio TCe 150, expect around 6.0-7.0 L/100km (40-47 mpg UK) in mixed driving. Highway cruising can yield 5.0-5.5 L/100km (51-56 mpg UK). Economy is optimized when the GPF can regenerate passively, so longer journeys yield the best results.

Yes. The H5F 408 is an interference engine. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal damage. Fortunately, the timing chain is designed for the engine's lifetime and is very durable with proper oil maintenance.

Renault specifies a 5W-30 synthetic oil meeting the RN17 or RN0720 (ACEA C5/C4) standard. This low-SAPS oil is essential for protecting the GPF and turbocharger. Using the correct oil and changing it every 15,000 km or annually is crucial for engine and emissions system health.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

RENAULT Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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)

UK type-approval authority for automotive products.

Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

Type-approval guidance and documentation.

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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