The Renault K4M 812 is a 1,598 cc, inline‑four petrol engine produced between 2008 and 2016. It features a dual overhead camshaft (DOHC) design with 16 valves and multi‑point fuel injection, delivering outputs typically around 77 kW (105 PS) and 148 Nm of torque. Its compact dimensions made it ideal for transverse mounting in Renault's compact and MPV segments.
Fitted to popular models like the Mégane III, Scénic III, and Duster, the K4M 812 was engineered for balanced urban and highway performance. Emissions compliance for most units was achieved to meet Euro 4 standards, with later production potentially aligning with Euro 5 requirements depending on specific market regulations and model year.
One documented concern involves premature wear of the exhaust camshaft lobes, particularly in higher-mileage examples. This issue, referenced in Renault Technical Note 7711 111 123, is often attributed to insufficient lubrication or the use of incorrect oil viscosity. Renault subsequently issued updated camshaft and lifter components to address the wear pattern in affected engines.
Production years 2008–2010 meet Euro 4 standards; 2011–2016 models may have Euro 5 compliance depending on market (VCA UK Type Approval #VCA/EMS/5680).
The Renault K4M 812 is a 1,598 cc inline‑four naturally aspirated petrol engine engineered for compact and MPV vehicles (2008-2016). It combines multi‑point fuel injection with a DOHC 16‑valve layout to deliver responsive low‑to‑mid range performance and urban drivability. Designed to meet Euro 4 (and some market‑specific Euro 5) standards, it prioritizes reliability and serviceability.
| 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 | 77 kW (105 PS) @ 5,750 rpm | |
| Torque | 148 Nm @ 3,750 rpm | |
| Fuel system | Multi‑point fuel injection (Siemens) | |
| Emissions standard | Euro 4 (pre‑2011); Euro 5 depending on market | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain (front‑mounted) | |
| Oil type | Renault RN0700 (SAE 5W‑40) | |
| Dry weight | 112 kg |
The DOHC layout provides crisp throttle response suitable for city driving but requires adherence to 15,000 km oil change intervals using RN0700 (5W-40) specification to prevent camshaft lobe wear. The timing chain is generally robust but should be inspected for tensioner rattle around 150,000 km. The Siemens fuel injection system is tolerant of standard 95 RON petrol. Engines produced before 2011 are most susceptible to camshaft wear; updated components are available per Renault Technical Note 7711 111 123.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault Technical Note 7711 111 123). Compatible with ACEA A3/B4 standards.
Emissions: Euro 4 certification applies to pre-2011 models only (VCA Type Approval #VCA/EMS/5680). Some 2011-2016 models meet Euro 5 depending on market.
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Renault Group PT-2014).
Renault Technical Information System: Docs K4M-812-01, Technical Note 7711 111 123
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The Renault K4M 812 was used across Renault's C platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Scénic III and revised intake manifolds for the Mégane III-and from 2011 received minor ECU updates for emissions, creating minor software interchange limits. 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-ID). The 8th VIN digit typically corresponds to the engine code ('H' for K4M 812 in many applications). Pre-2011 engines use a black plastic cam cover; post-2011 units may have a revised silver or textured cover. Critical differentiation from K4M 730/760: K4M 812 has a specific ECU calibration for the Duster application. ECU part numbers also differ; verify via diagnostic tool before swapping components.
The K4M 812's primary reliability risk is exhaust camshaft lobe wear on early builds, with elevated incidence in high-mileage or poorly maintained vehicles. Internal Renault service data indicated a notable number of pre-2011 engines required camshaft replacement before 150,000 km, while general owner feedback highlights timing chain tensioner rattle as a common annoyance. Extended oil change intervals or use of incorrect oil viscosity significantly increase camshaft wear risk.
Analysis derived from Renault technical bulletins (2008-2012) and owner-reported failure data (2012-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K4M-812.
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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