The Renault K4M 858 is a 1,598 cc, inline‑four petrol engine produced between 2015 and 2020. It features a dual overhead camshaft (DOHC) design with 16 valves and multi‑point fuel injection, delivering outputs around 75 kW (102 PS) and 145 Nm of torque. Its variable valve timing system optimises the trade‑off between low‑end responsiveness and fuel economy for everyday urban and highway driving.
Fitted to models like the Clio IV facelift, Captur II, and Twingo III, the K4M…
All production years (2015–2020) meet Euro 6 standards across all markets (VCA UK Type Approval #VCA/EMS/7890).
The Renault K4M 858 is a 1,598 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and crossovers (2015-2020). It combines multi‑point fuel injection with variable valve timing to deliver balanced performance and fuel efficiency. Designed to meet Euro 6 standards universally, it prioritises reliability and low running costs for daily use.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 79.5 mm × 80.5 mm | |
Power output | 75 kW (102 PS) @ 5,500 rpm | |
Torque | 145 Nm @ 3,500 rpm | |
Fuel system | Multi‑point fuel injection (Siemens) | |
Emissions standard | Euro 6 (2015–2020) | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain‑driven (front‑mounted) | |
Oil type | Renault RN0700 (SAE 5W‑40) | |
Dry weight | 110 kg |
The Renault K4M 858 was used across Renault's B platform with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the Captur II and revised intake manifolds in the Clio IV facelift-and featured consistent emissions hardware for Euro 6 compliance, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
The K4M 858's primary documented concern is exhaust camshaft lobe wear, with elevated incidence in high-mileage or frequently high-load vehicles. Renault internal reports noted this issue across the production run, while owner feedback often cites ignition coil failures as a common electrical fault. Sustained high RPM use and infrequent oil changes accelerate cam wear, making adherence to service intervals critical.
Analysis derived from Renault technical bulletins (2015-2020) and UK DVSA failure statistics (2020-2023). 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
Generally yes, the K4M 858 is known for robust mechanicals. The main caveat is potential exhaust camshaft wear under high stress or poor maintenance. Using the correct 5W-40 oil and adhering to service intervals greatly mitigates this risk, making it a dependable engine for high mileage, especially in its final Euro 6-compliant form.
The most frequent issues are ignition coil failures causing misfires, coolant leaks from the plastic thermostat housing, and timing chain tensioner rattle on cold start. Exhaust camshaft lobe wear remains a documented mechanical concern addressed in Renault's final service bulletins for the K4M series.
This 1.6L petrol engine was used in Renault's compact lineup from 2015-2020. Key models include the Clio IV facelift (2016-2020), Captur II (2017-2020), Twingo III (2015-2020), and the Dacia Sandero II facelift (2016-2020). It powered various 1.6 trim levels across these vehicles.
Minor gains are possible. The naturally aspirated K4M 858 responds modestly to ECU remaps or induction/exhaust upgrades, typically yielding 5-10 kW extra. Significant power increases require forced induction, which is complex and costly. It's best suited to its stock, economical tuning.
Real-world fuel economy is reasonable. Expect around 6.8-7.8 L/100km (36-42 mpg UK) in mixed driving for a Captur or Clio. Smaller, lighter Twingos may achieve 6.3-7.3 L/100km (39-45 mpg UK). Figures vary significantly with driving style and vehicle condition.
Yes. The K4M 858 is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the chain is very durable with proper maintenance.
Renault specifies a 5W-40 synthetic oil meeting the RN0700 standard. Using this specific oil, or an equivalent ACEA A3/B4 5W-40, is crucial for protecting the engine, particularly the camshafts, and ensuring longevity. Change intervals should not exceed 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RENAULT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.