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 858 was engineered for dependable, economical motoring in compact vehicles. Emissions compliance was achieved through electronic throttle control and precise fuel metering, allowing most units to meet Euro 6 standards across all production years.
One documented service concern is premature wear of the exhaust camshaft lobes, particularly in higher‑mileage examples. This issue, referenced in Renault Technical Note 4125C, is often attributed to marginal lubrication under sustained high‑load conditions. Renault addressed this by revising the camshaft material specification and oil feed passages in the final production runs.
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 naturally aspirated design offers predictable, linear power delivery suited for relaxed driving but requires regular oil changes (every 15,000 km) to prevent camshaft lobe wear. Renault RN0700 (5W-40) oil is critical for its specific anti-wear additives protecting the valvetrain. The timing chain is designed for life but tensioner failure can occur; listen for a rattle on cold start. Fuel injectors may require cleaning after 100,000 km to maintain idle quality and emissions. Final production models feature updated camshafts per Technical Note 4125C.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault Service Manual 60C). Equivalent ACEA A3/B4 oils are acceptable.
Emissions: Euro 6 certification applies universally to all 2015-2020 models (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Renault TIS Doc. K4M-15).
Renault Technical Information System (TIS): Docs K4M-15, 4125C
VCA Type Approval Database (VCA/EMS/7890)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Renault TIS K4M-15). The 8th VIN digit typically indicates engine displacement ('6' for 1.6L). All K4M 858 engines have a black cam cover indicating the final specification. Critical differentiation from K4M 801: K4M 858 uses a unique ECU calibration and has distinct part numbers for the camshafts introduced per Technical Note 4125C.
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.
Find answers to most commonly asked questions about RENAULT K4M-858.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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