The Renault D4F 728 is a 1,149 cc, inline‑four petrol engine produced between 1999 and 2008. It features a double overhead camshaft (DOHC) and four valves per cylinder, balancing efficiency with modest performance. In standard form, it delivered approximately 44 kW (60 PS), designed for responsive urban driving in compact vehicles.
Fitted primarily to the Renault Clio II and Twingo II, the D4F 728 was engineered for fuel economy and low emissions in city environments. Em…
Production years 1999–2005 meet Euro 3 standards; 2006–2008 models comply with Euro 4 depending on market .
The Renault D4F 728 is a 1,149 cc inline‑four petrol engine engineered for supermini applications (1999-2008). It combines DOHC 16-valve architecture with multi-point fuel injection to deliver peppy low-end response and efficient urban running. Designed to meet Euro 3 (and later Euro 4) standards, it prioritises compact packaging and serviceability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,149 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 68.0 mm × 79.5 mm | |
Power output | 44 kW (60 PS) | |
Torque | 95 Nm @ 3,250 rpm | |
Fuel system | Multi-point fuel injection (Siemens) | |
Emissions standard | Euro 3 (pre‑2006); Euro 4 (2006–2008) | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven camshafts | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 92 kg |
The Renault D4F 728 was used across Renault's Clio II and Twingo II platforms with transverse mounting. This engine received minor platform-specific adaptations-different intake manifolds and engine mounts between the Clio and Twingo. All adaptations are documented in OEM technical bulletins.
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The D4F 728's primary reliability risk is exhaust camshaft lobe wear, with elevated incidence in engines subjected to extended oil change intervals. Renault Technical Note TN-D4F-03 documents this issue, while owner club data suggests it is a leading cause of major repairs in high-mileage examples. Neglecting oil changes or using incorrect viscosity makes adherence to the maintenance schedule critical.
Analysis derived from Renault technical bulletins (1999-2008) and owner club maintenance logs. Repair procedures should follow manufacturer guidelines.
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The D4F 728 can be reliable long-term if meticulously maintained. Its main weakness is camshaft wear, which is almost entirely preventable with strict oil changes using the correct 5W-30 synthetic. With proper care, these engines can easily surpass 150,000 km without major issues.
The most critical issue is exhaust camshaft lobe wear, followed by timing belt failure if neglected. Other common problems include failing ignition coils, coolant leaks from the thermostat housing, and occasionally, EGR valve clogging. These are well-documented in Renault service notes.
The D4F 728 was primarily used in the second-generation Renault Clio (Clio II) from 1999 to 2005 and the second-generation Renault Twingo (Twingo II) from 2007 to 2008. It was fitted to the 1.2 16V variants of these models.
Minor tuning is possible. A remap can yield a modest 5-8 PS gain, and a performance air filter or exhaust can improve throttle response. Significant power increases are not practical due to the engine's small displacement and are not recommended due to the known camshaft wear issue.
Fuel economy is good for its era. Expect around 6.5–7.5 L/100km (38–43 mpg UK) in mixed driving for a well-tuned engine in a Renault Clio II. City driving will be higher, around 8-9 L/100km, while highway cruising can achieve 5.5 L/100km.
Yes. The D4F 728 is definitively an interference engine. If the timing belt breaks or jumps teeth, the pistons will collide with the open valves, causing severe internal damage that requires a major engine rebuild or replacement.
Renault specifies a fully synthetic 5W-30 engine oil meeting ACEA A3/B4 standards. Using mineral or semi-synthetic oil, or extending oil change intervals, significantly increases the risk of camshaft lobe wear and premature engine failure.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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