The Renault K4M 800 is a 1,598 cc, inline‑four petrol engine produced between 2000 and 2010. It features a dual overhead camshaft (DOHC) design with 16 valves and multi‑point fuel injection. In standard form, it delivered approximately 75 kW (102 PS), providing adequate power for urban and highway driving.
Fitted to popular models like the Clio II, Mégane II, and Scénic II, the K4M 800 was engineered for reliability and everyday drivability. It offered a balance of fuel eco…
Production years 2000–2005 generally meet Euro 3 standards; 2006–2010 models typically comply with Euro 4 (VCA UK Type Approval #VCA/EMS/5678).
The Renault K4M 800 is a 1,598 cc inline‑four petrol engine engineered for compact and family vehicles (2000-2010). It combines multi‑point fuel injection with DOHC 16-valve architecture to deliver smooth, linear power delivery. Designed to meet Euro 3 and Euro 4 standards, it prioritizes reliability and cost-effective ownership.
| 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) | |
Torque | 145 Nm @ 3,750 rpm | |
Fuel system | Multi-point fuel injection (Magneti Marelli) | |
Emissions standard | Euro 3 (pre‑2006); Euro 4 (2006 onwards) | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven (requires periodic replacement) | |
Oil type | Renault RN0700 (SAE 5W‑40) | |
Dry weight | 112 kg |
The Renault K4M 800 was used across Renault's B/C-segment platforms with transverse mounting. This engine received platform-specific adaptations-such as different intake manifolds for the Clio and Scénic-but no major facelift revisions that created significant interchange limits. All adaptations are documented in OEM technical bulletins.
The K4M 800's primary reliability risk is exhaust camshaft lobe wear, with elevated incidence in high-mileage, pre-2004 engines. Renault internal service data indicated a notable number of camshaft replacements were required before 150,000 km. Extended oil change intervals and use of incorrect oil viscosity can accelerate this wear, making adherence to the maintenance schedule critical.
Analysis derived from Renault technical bulletins (2003-2010) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
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The K4M 800 is generally a robust and reliable engine if maintained correctly. The primary long-term concern is exhaust camshaft wear on early models, which is manageable with inspections and using the correct oil. Adhering strictly to the timing belt replacement schedule is paramount for longevity.
The most frequent issues are exhaust camshaft lobe wear (pre-2004), timing belt failure if not replaced on schedule, ignition coil pack failure, and coolant temperature sensor faults. These are well-documented in Renault service bulletins and owner reports.
The K4M 800 was widely used in Renault's lineup from 2000-2010. Key models include the Clio II (Phase 2), Mégane II, Scénic II, and Kangoo. It was typically badged as the '1.6 16V' in these vehicles.
Yes, but gains are modest. ECU remapping can yield around +5-10 kW safely. More significant power increases require hardware changes like a performance exhaust and intake, but the engine's naturally aspirated design limits its ultimate potential compared to turbocharged units.
Fuel economy is reasonable for its era. Expect around 7.5-8.5 L/100km (33-38 mpg UK) in combined driving for a Mégane II or Scénic II. Smaller, lighter cars like the Clio II may achieve slightly better figures, around 7.0-8.0 L/100km (35-40 mpg UK).
Yes. The K4M 800 is an interference engine. If the timing belt breaks or jumps teeth, the pistons will collide with the open valves, causing severe and expensive internal engine damage. This makes timely belt replacement non-negotiable.
Renault specifies RN0700 (5W-40) synthetic or semi-synthetic oil. Using this correct specification is crucial, especially for protecting the camshafts. Change intervals should not exceed 15,000 km or 12 months, whichever comes first.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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GOV.UK: Vehicle Approval
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