The Renault G9U 630 is a 1,749 cc, inline‑four turbo‑diesel engine produced between 2018 and 2023. It features a high — pressure common — rail fuel system, a variable geometry turbocharger (VGT), and double overhead camshafts. This engine was designed to deliver a balance of 96 kW (130 PS) and 340 Nm of torque, with its twin — scroll turbocharger enhancing throttle response for urban and highway driving.
Fitted primarily to the K9K — based Kadjar and Megane IV, the G9U 630 was e…
Production years 2018–2023 meet Euro 6d-TEMP standards .
The Renault G9U 630 is a 1,749 cc inline‑four turbo‑diesel engineered for compact SUVs and hatchbacks (2018-2023). It combines a high-pressure common-rail system with a twin-scroll variable-geometry turbocharger to deliver strong low-end torque and responsive performance. Designed to meet Euro 6d-TEMP standards, it balances efficiency with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,749 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 80.0 mm × 87.0 mm | |
Power output | 96 kW (130 PS) | |
Torque | 340 Nm @ 1,750 rpm | |
Fuel system | Denso HP3 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6d-TEMP | |
Compression ratio | 15.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single twin-scroll VGT (Garrett) | |
Timing system | Chain-driven | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 148 kg |
The Renault G9U 630 was used across Renault's CMF-CD platform with transverse mounting. This engine received platform-specific adaptations-optimized engine mounts for the Kadjar SUV and revised intake manifolds for the Megane IV Sport Tourer. 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 G9U 630 is generally robust mechanically. Its long-term reliability heavily depends on strict adherence to service intervals, using the correct RN0720 oil, and maintaining the AdBlue/DPF system. Neglecting these can lead to costly emissions-related repairs.
The most frequent issues are DPF clogging from short trips, AdBlue system faults (empty tank or sensor failures), EGR valve carbon buildup, and occasional injector seal leaks. These are well-documented in Renault service bulletins.
This 1.7L dCi 130 engine was used in the Renault Kadjar (2018-2023) and the Renault Megane IV, including both the hatchback and Sport Tourer variants (2018-2023). It was not used in other Renault or Nissan models.
Aftermarket ECU tuning is common on the G9U-630 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are around 4.5-5.0 L/100km (63-56 mpg UK). Real-world consumption typically ranges from 5.5-6.5 L/100km (51-43 mpg UK) depending on driving style, vehicle model (Kadjar vs Megane), and DPF regeneration cycles.
Yes. Like virtually all modern engines, the G9U 630 is an interference design. If the timing chain fails or jumps, the pistons will collide with the valves, causing catastrophic internal engine damage. Fortunately, the chain is very durable.
Renault mandates RN0720 specification oil, typically a 5W-30 low-ash synthetic. Using the correct oil is non-negotiable to protect the DPF and SCR systems. Always check the owner's manual or oil filler cap for the exact specification.
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.