The Renault H4M 751 is a 1,598 cc, inline‑four turbo‑diesel engine produced between 2014 and 2018. It features a high — pressure common — rail fuel system, a fixed — geometry turbocharger, and double overhead camshafts. This engine delivers 81 kW (110 PS) and 260 Nm of torque, with its compact design prioritizing efficiency for urban and suburban driving.
Fitted primarily to the Renault Captur, Kadjar, and Megane III, as well as the Nissan Qashqai in certain markets, the H4M…
Production years 2014–2018 meet Euro 5 standards for all applicable markets .
The Renault H4M 751 is a 1,598 cc inline‑four turbo‑diesel engineered for compact and crossover vehicles (2014-2018). It combines a high-pressure common-rail injection system with a fixed-geometry turbocharger to deliver accessible torque and efficient operation. Designed to meet Euro 5 standards, it balances urban drivability with fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (Fixed Geometry) | |
Bore × stroke | 76.0 mm × 88.0 mm | |
Power output | 81 kW (110 PS) | |
Torque | 260 Nm @ 1,750 rpm | |
Fuel system | Denso HP3 common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed-geometry turbo (Honeywell) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 142 kg |
The Renault H4M 751 was used across Renault's CMF-B platform with transverse mounting. This engine received platform-specific adaptations-optimized engine mounts for the Captur and revised exhaust routing for the Kadjar. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 H4M 751 is generally dependable for its intended urban use when maintained correctly. Its main documented issue is the dual-mass flywheel (addressed in SIB 4015B). Long-term reliability hinges on using the correct RN0710 5W-30 oil, allowing the DPF to regenerate through highway driving, and avoiding aggressive clutch use.
The most frequent issues are dual-mass flywheel wear (causing shudder), EGR valve/clogging, DPF clogging from short trips, and potential turbocharger wastegate actuator failure. These are covered in Renault service documentation and are common to many Euro 5 diesels.
The H4M 751 was primarily used in the Renault Captur, Megane III (2014-2016), and Kadjar (2015-2018), badged as Energy dCi 110. It was also shared with Nissan, powering the Qashqai (2014-2018) as the dCi 110 engine in select European markets.
ECU remapping is possible and can yield modest gains (e.g., +10-15 kW). However, the fixed-geometry turbo and standard internals limit potential. Any remap should be conservative to avoid overstressing the DMF and turbocharger, and performed by a specialist familiar with Renault systems.
Official combined figures are around 4.2-4.5 L/100km (63-67 mpg UK), depending on the vehicle (Captur vs Kadjar) and transmission. Real-world economy typically ranges from 4.8 to 6.0 L/100km (47-59 mpg UK), heavily influenced by driving style and DPF regeneration cycles.
Yes. Like virtually all modern engines, the H4M 751 is an interference design. If the timing chain were to fail, the pistons would collide with the open valves, causing catastrophic internal engine damage. The chain is designed for longevity under normal service conditions.
Renault mandates the use of RN0710 specification 5W-30 synthetic oil. This oil is formulated to handle the soot levels generated by the EGR system and to protect the DPF from premature clogging, ensuring the engine's emissions systems function correctly.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.