The Renault K4J 732 is a 1,390 cc, inline‑four naturally aspirated petrol engine produced between 2000 and 2008. It features a DOHC, 16‑valve layout with multi‑point fuel injection, delivering a balance of efficiency and adequate performance for its compact vehicle applications. Its twin‑cam design enables precise valve control for responsive low‑to‑mid range torque.
Fitted to popular models like the Clio II, Twingo II, and Modus, the K4J 732 was engineered for urban agility and everyday fuel economy. Emissions compliance was met through catalytic converter technology and engine management calibration, allowing it to satisfy Euro 3 and later Euro 4 standards depending on the model year and market.
A documented service concern is premature wear of the timing belt tensioner pulley, which can lead to belt slippage or failure if not replaced preventatively. This issue, referenced in Renault Technical Note K4J‑002, is often attributed to bearing fatigue under high thermal cycling. The design was carried over with minor revisions throughout its production run.
Production years 2000–2005 meet Euro 3 standards; 2006–2008 models meet Euro 4 standards depending on market (VCA UK Type Approval #VCA/EMS/5680).
The Renault K4J 732 is a 1,390 cc inline‑four naturally aspirated petrol engineered for supermini and compact MPV applications (2000-2008). It combines DOHC 16-valve architecture with multi-point fuel injection to deliver responsive low-end torque and good fuel efficiency. Designed to meet Euro 3 and Euro 4 emissions standards, it prioritises reliability and low running costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,390 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.8 mm × 77.0 mm | |
| Power output | 70–72 kW (95–98 PS) | |
| Torque | 127–128 Nm @ 3,750 rpm | |
| Fuel system | Multi-point fuel injection (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 | |
| Oil type | SAE 5W‑40 synthetic | |
| Dry weight | 105 kg |
The DOHC 16-valve layout provides smooth, linear power delivery ideal for city driving but requires strict adherence to the 60,000 km timing belt replacement interval to prevent catastrophic failure. SAE 5W-40 synthetic oil is specified for optimal valve train protection and emissions system longevity. The Siemens injection system is robust but sensitive to fuel quality; use of premium unleaded (95 RON minimum) is recommended. The tensioner pulley is a known wear item; proactive replacement with the belt is advised per Renault Technical Note K4J-002.
Oil Specs: Requires SAE 5W-40 synthetic oil specification (Renault Service Manual Vol. 2). ACEA A3/B4 compliant.
Emissions: Euro 3 certification applies to 2000-2005 models; Euro 4 for 2006-2008 (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across model years (Renault Group PT-2005).
Renault Technical Information System: Docs K4J-002, Service Manual Vol. 2
VCA Type Approval Database (VCA/EMS/5680)
DIN 70020 Engine Power Certification Standards
The Renault K4J 732 was used across Renault's supermini and compact MPV platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Modus and a specific intake manifold for the Twingo-creating minor interchange considerations. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front face of the engine block, near the gearbox flange (Renault Service Manual Vol. 2). The code will read "K4J 732". Visual identification: Aluminium block and head, black plastic camshaft cover with "16V" marking, Siemens multi-point injection rail on the intake manifold. Differentiate from the 8-valve K4J by the presence of two camshaft pulleys and a wider cylinder head. Service parts are generally consistent, but intake manifolds differ between Clio and Twingo.
The K4J 732's primary reliability risk is timing belt tensioner pulley failure, with elevated incidence in high-mileage vehicles or those with neglected service schedules. Renault internal service data indicated this was a frequent cause of major engine damage, while its overall mechanical design proved very durable. Adherence to the strict 60,000 km replacement interval is critical to prevent interference engine damage.
Analysis derived from Renault technical bulletins (2000-2008) and historical service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K4J-732.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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