The Renault K7M 744 is a 1,598 cc, inline‑four petrol engine produced between 1996 and 2008. It features a single overhead camshaft (SOHC) design with 8 valves and multi‑point fuel injection, delivering outputs typically around 55 kW (75 PS) and 127 Nm of torque. Its simple, non‑turbocharged architecture prioritises cost-effective ownership and ease of maintenance.
Fitted to models such as the Clio II, Mégane I, and Kangoo I, the K7M 744 was engineered for economical urban commuting and light utility duties. It offers adequate, predictable power delivery rather than performance. Emissions compliance for most units was achieved to meet Euro 2 standards.
One documented service concern is premature failure of the crankshaft position sensor, noted in Renault Technical Note MEC‑05‑008. This issue, often linked to heat exposure and electrical degradation, led to revised sensor designs and updated diagnostic procedures for affected production periods.
Production years 1996–2000 meet Euro 2 standards; 2001–2008 models may have Euro 3 compliance depending on market (VCA UK Type Approval #VCA/EMS/5677).
The Renault K7M 744 is a 1,598 cc inline‑four naturally aspirated petrol engine engineered for compact and light commercial vehicles (1996-2008). It combines multi‑point fuel injection with a SOHC 8‑valve head to deliver adequate, economical power and straightforward drivability. Designed to meet Euro 2 (and some market‑specific Euro 3) standards, it balances low-cost ownership with basic performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 79.5 mm × 80.5 mm | |
| Power output | 55 kW (75 PS) | |
| Torque | 127 Nm @ 2,800 rpm | |
| Fuel system | Multi‑point fuel injection (Sagem) | |
| Emissions standard | Euro 2 (pre‑2001); Euro 3 depending on market | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt‑driven (requires periodic replacement) | |
| Oil type | Renault RN0700 (SAE 10W‑40) | |
| Dry weight | 108 kg |
The SOHC 8-valve design provides adequate low-RPM torque for city driving and light loads but lacks refinement and high-RPM power. The timing belt must be replaced at 90,000 km or 4 years to prevent catastrophic interference engine damage. Using 10W-40 oil is recommended for optimal lubrication under varied conditions. The crankshaft position sensor is prone to heat-related failure; carrying a spare is advisable for high-mileage vehicles. Coolant should be replaced every 4 years to protect the cast-iron block.
Oil Specs: Recommends Renault RN0700 (10W-40) specification for optimal performance (Renault TIS K7M-001).
Emissions: Euro 2 certification applies to pre-2001 models only (VCA Type Approval #VCA/EMS/5677). Some 2001-2008 models meet Euro 3 depending on market.
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Renault TIS Doc. K7M-001).
Renault Technical Information System (TIS): Docs K7M-001, K7M-004
Renault Service Information Bulletin (SIB): MEC-05-008
VCA Type Approval Database (VCA/EMS/5677)
The Renault K7M 744 was used across Renault's A/B platforms with transverse mounting. This engine received platform-specific adaptations-reinforced sump in the Kangoo and revised engine mounts in the Mégane-and from 2005 the Clio III adopted a different engine family, creating 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 K7M-001). The 8th VIN digit typically corresponds to the engine code ('K' for K7M series). Visually, it can be identified by its grey plastic intake manifold and the "1.6 8V" badge on the engine cover. Critical differentiation from later K4M engines: The K7M 744 has a single camshaft and 8 valves, while K4M engines have dual camshafts and 16 valves. Service parts, particularly timing belts and sensors, require verification against the engine's production date due to mid-cycle updates (Renault SIB MEC-05-008).
The K7M 744's primary reliability risk is crankshaft position sensor failure, with elevated incidence in vehicles subjected to high underhood temperatures. Renault internal data indicated a notable number of cases before 100,000 km, while owner reports frequently cite timing belt failure as a major concern if neglected. Infrequent coolant changes and use of incorrect oil viscosity can lead to sludge buildup.
Analysis derived from Renault technical bulletins (1996-2008) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K7M-744.
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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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