The Renault K4M 706 is a 1,598 cc, inline‑four naturally aspirated petrol engine produced between 2000 and 2008. It features a DOHC, 16‑valve design with multi‑point fuel injection, delivering balanced performance for compact vehicles. This compact engine prioritised refinement and urban drivability, making it suitable for hatchbacks and small MPVs.
Fitted primarily to the Renault Mégane II and Scénic II, the K4M 706 was engineered for agile, economical city drivin…
Production years 2000–2005 typically meet Euro 3 standards; 2006–2008 models meet Euro 4 depending on market (French RTAC Homologation).
The Renault K4M 706 is a 1,598 cc inline‑four naturally aspirated petrol engineered for compact hatchbacks and MPVs (2000-2008). It combines multi-point fuel injection with dual overhead camshafts to deliver smooth, responsive performance ideal for urban environments. Designed to meet Euro 3 and Euro 4 emissions standards, it balances everyday drivability with fuel efficiency.
| 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) | |
Torque | 148 Nm @ 3,750 rpm | |
Fuel system | Multi-point fuel injection (SAGEM/Siemens) | |
Emissions standard | Euro 3 (2000–2005); Euro 4 (2006–2008) | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven camshafts (interference design) | |
Oil type | Synthetic 5W‑40 (ACEA A3/B4) | |
Dry weight | Not specified in available OEM docs |
The Renault K4M 706 was used across Renault's Mégane II and Scénic II platforms with transverse mounting and was not licensed to other manufacturers. This engine received minor platform-specific adaptations-primarily related to accessory mounting and exhaust routing-and no significant facelift revisions occurred during its production run. All adaptations are documented in OEM technical bulletins.
The K4M 706's primary reliability risk is timing belt failure, which can cause catastrophic engine damage if neglected. Renault service data indicates a significant portion of failures occur in vehicles exceeding the 120,000 km or 5-year replacement interval. Urban driving with frequent short trips can accelerate belt aging, making strict adherence to the maintenance schedule critical.
Analysis derived from Renault technical manuals (2000s) and aggregated European workshop failure reports (2005-2015). Repair procedures should follow manufacturer guidelines.
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The K4M 706 is generally reliable if its critical maintenance, especially the 5-year/120,000 km timing belt replacement, is strictly followed. Neglecting this can lead to total engine failure. With proper care, including regular oil changes and addressing common issues like ignition coils, it can provide dependable service for high mileage.
The most critical issue is timing belt failure due to missed service intervals. Other frequent problems include ignition coil failure causing misfires, thermostat failure leading to overheating or poor warm-up, and oil leaks from the camshaft cover gasket.
The K4M 706 1.6L 16V petrol engine was primarily fitted to the second-generation Renault Mégane (BM/CM, 2003-2008) and the second-generation Renault Scénic (JM, 2003-2008) in their 1.6 16V variants.
Minor power gains are possible through ECU remapping or intake/exhaust modifications, but significant tuning is limited by the engine's naturally aspirated design and internal components. Gains of 5-10 kW are typical. Ensure the engine is in good health before any tuning.
Fuel economy is reasonable for its era. Expect figures around 7.0-8.0 L/100km (35-40 mpg UK) in combined driving for a Renault Mégane II. Real-world consumption will vary based on driving style, condition, and vehicle weight.
Yes. The K4M 706 is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe internal damage that usually requires a major engine rebuild or replacement.
Renault specifies a fully synthetic 5W-40 engine oil meeting ACEA A3/B4 specifications for the K4M 706. Using the correct oil is vital for protecting the engine, particularly the valve train and timing components.
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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