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…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The K4J 732 is generally reliable with a robust design. Its main weakness is the timing belt system; failure to replace the belt and tensioner at 60,000 km can cause catastrophic engine damage. With strict adherence to this schedule and regular oil changes, these engines can easily surpass 200,000 km without major issues.
The most critical issue is timing belt tensioner failure, which can destroy the engine. Other common problems include ignition coil pack failure (causing misfires), coolant leaks from the plastic thermostat housing, and rattling from the exhaust manifold heat shield. These are well-documented in Renault service notes.
The K4J 732 1.4L 16V petrol engine was fitted to the Renault Clio II (2000-2008), Renault Twingo II (2007-2008), and Renault Modus (2004-2008). It was a mainstay engine for Renault's small car lineup during this period.
Minor power gains are possible. A performance air filter and free-flow exhaust can yield small improvements. ECU remapping is available but offers limited gains (5-10 PS) due to the engine's conservative state of tune. Significant power increases require forced induction, which is complex and not cost-effective for this engine.
Fuel economy is good for its era and size. Expect around 6.5 L/100km (43 mpg UK) combined for a Renault Clio II. Real-world figures typically range from 38-45 mpg UK depending on driving style and vehicle condition. Its strength is urban efficiency rather than highway cruising.
Yes. The K4J 732 is an interference engine. If the timing belt breaks or slips, the pistons will collide with the open valves, causing severe internal damage requiring a costly rebuild or replacement. This makes the 60,000 km belt change interval absolutely critical.
Renault specifies a fully synthetic SAE 5W-40 engine oil meeting ACEA A3/B4 standards for the K4J 732. Using the correct oil ensures proper lubrication of the DOHC valvetrain and protects the catalytic converter. Change intervals should be every 15,000 km or 12 months.
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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