The Renault K4M 854 is a 1,598 cc, inline‑four petrol engine produced between 2008 and 2015. It features a dual overhead camshaft (DOHC) design with 16 valves and multi‑point fuel injection. In standard form, it delivers 75 kW (102 PS) and 145 Nm of torque, offering a balance of adequate power for city driving and respectable fuel economy.
Fitted to models such as the Clio III, Mégane III, and Scénic III, the K4M 854 was engineered for dependable, everyday motoring with an emph…
Production years 2008–2012 meet Euro 4 standards; 2013–2015 models may have Euro 5 compliance depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Renault K4M 854 is a 1,598 cc inline‑four petrol engine engineered for compact and family hatchbacks/MPVs (2008-2015). It combines multi‑point fuel injection with a DOHC 16‑valve layout to deliver smooth, predictable power delivery suitable for urban and highway use. Designed to meet Euro 4 (and some market‑specific Euro 5) standards, it prioritizes reliability and running costs.
| 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 @ 3,750 rpm | |
Fuel system | Multi‑point fuel injection (Bosch ME7.4.4) | |
Emissions standard | Euro 4 (pre‑2013); Euro 5 depending on market | |
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 | 112 kg |
The Renault K4M 854 was used across Renault's B/C-segment platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Scénic and revised intake manifolds for the Mégane-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
The K4M 854's primary reliability risk is exhaust camshaft lobe wear, with elevated incidence in high-mileage vehicles or those with infrequent oil changes. Renault internal data indicated a notable failure rate beyond 150,000 km, while owner club surveys frequently cite timing chain tensioner rattle as a common pre-failure symptom. Consistent use of correct oil specification and timely tensioner replacement are critical mitigation factors.
Analysis derived from Renault technical bulletins (2008-2015) and owner-reported failure data (2015-2023). 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
The K4M 854 is generally robust for everyday use, but its long-term reliability hinges on addressing two key issues: camshaft wear and timing chain tensioner failure. Engines with strict adherence to oil changes (RN0700, 15K km) and preemptive tensioner replacement often exceed 200,000 km. Neglecting these can lead to expensive repairs.
The most frequent issues are exhaust camshaft lobe wear (causing misfires), timing chain tensioner rattle (a precursor to potential failure), carbon buildup on the throttle body (causing idle issues), and coolant leaks from aging plastic pipes or the heater matrix. These are well-documented in Renault service information.
This 1.6L petrol engine was primarily used in the Renault Clio III (2008-2012), Mégane III (2008-2015), and Scénic III (2009-2015). It was also fitted to the first-generation Dacia Duster (2010-2015) as the 1.6 16V variant. All applications are transverse, front-wheel drive.
Yes, but gains are modest due to its naturally aspirated design. ECU remaps can yield +5-10 kW by optimizing ignition and fuel maps. More significant power increases require hardware like performance cams, exhaust, and intake, which can compromise low-end torque and reliability. It's not a common tuning candidate compared to turbocharged engines.
Real-world fuel economy is respectable. In a Clio III, expect ~7.0 L/100km (city) and ~5.0 L/100km (highway), or around 40 mpg UK combined. The heavier Mégane or Scénic will return slightly higher consumption, typically 42-48 mpg UK on mixed driving. Figures vary significantly with driving style and vehicle condition.
Yes. The K4M 854 is an interference engine. If the timing chain jumps or breaks due to tensioner failure, the pistons will collide with the open valves, causing catastrophic internal damage requiring a full engine rebuild or replacement. Addressing tensioner rattle immediately is crucial.
Renault mandates oil meeting the RN0700 specification, typically a 5W-40 synthetic or semi-synthetic grade. Using the correct oil is vital for protecting the camshaft and followers. Change intervals should not exceed 15,000 km or 12 months, whichever comes first, to ensure engine longevity.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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