The Renault K9K 628 is a 1,461 cc, inline‑four turbo‑diesel engine produced between 2007 and 2011. It features a double overhead camshaft (DOHC) design with 8 valves and common rail direct injection. This compact unit delivered 63 kW (86 PS) and 200 Nm of torque, offering strong low — end pull ideal for urban driving and light towing.
Fitted to models such as the Clio III, Modus, and Twingo, the K9K 628 was engineered for drivers seeking fuel efficiency and responsive torque in…
Production years 2007–2011 meet Euro 4 standards .
The Renault K9K 628 is a 1,461 cc inline‑four turbo‑diesel engineered for compact city vehicles (2007-2011). It combines common-rail direct injection with a single fixed-geometry turbocharger to deliver strong low-rpm torque and efficient operation. Designed to meet Euro 4 standards, it balances urban drivability with fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,461 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 8‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 80.5 mm | |
Power output | 63 kW (86 PS) @ 4,000 rpm | |
Torque | 200 Nm @ 1,900 rpm | |
Fuel system | Siemens common-rail (up to 1,600 bar) | |
Emissions standard | Euro 4 | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed-geometry turbo (Garrett) | |
Timing system | Chain‑driven (front‑mounted) | |
Oil type | Renault RN0710 (SAE 5W‑40) | |
Dry weight | 110 kg |
The Renault K9K 628 was used across Renault's Clio III and Modus platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for different body weights-and no significant facelift revisions affecting core compatibility during its production run. 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 K9K 628 is generally a robust engine. Its main known issue is the high-pressure fuel pump, which Renault addressed with updated parts. With strict adherence to oil changes using RN0710 5W-40, using only high-quality EN 590 diesel, and addressing common ancillary issues like the EGR valve, these engines can easily surpass 200,000 km without major problems.
The most documented issue is high-pressure fuel pump failure, often linked to fuel quality. Other frequent problems include EGR valve clogging, DPF regeneration issues (especially with short trips), and glow plug/module failure. These are covered in Renault service documentation and are generally straightforward to repair.
The K9K 628 was used in the Renault Clio III (2007-2011), Modus (2007-2010), and Twingo (2007-2011), all badged as the '1.5 dCi 86'. It was a popular engine for Renault's compact and city car lineup during this period, offering a good balance of performance and economy.
Aftermarket ECU tuning is common on the K9K-628 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.
Fuel economy is excellent. Expect around 5.0-5.5 L/100km (51-56 mpg UK) in mixed urban driving and 4.0-4.5 L/100km (63-71 mpg UK) on the highway in a Clio III. Its small displacement and diesel efficiency make it very economical, especially on longer journeys.
Yes. The K9K 628 is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain is very durable with proper maintenance.
Renault mandates oil meeting the RN0710 specification, typically a 5W-40 synthetic designed for diesel engines with DPFs. Using this specific oil is crucial for protecting the engine and ensuring the DPF functions correctly. Change intervals should not exceed 20,000 km or 12 months, whichever comes first.
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.