The Renault F4R 741 is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 2000 and 2006. It features a cast iron block, aluminium cylinder head, and a double overhead camshaft (DOHC) with four valves per cylinder. Output was typically 100 kW (136 PS), with torque peaking at 191 Nm, offering a refined and responsive driving experience.
Fitted to models such as the Mégane II, Laguna II, and Scénic II, the F4R 741 was engineered for a balance of performance, refinement, and everyday usability. It provided smooth power delivery across the rev range, making it suitable for both city driving and highway cruising. Emissions compliance was met through sequential multi-point fuel injection and catalytic converters, aligning with Euro 3 standards.
One documented service concern is premature failure of the exhaust camshaft position sensor, which can cause starting difficulties or erratic engine behavior. This issue, noted in Renault technical service bulletin TN 4302B, is often attributed to electrical connector corrosion or internal sensor failure. Minor revisions were introduced during its production run to improve reliability.
Production years 2000–2006 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5683).
The Renault F4R 741 is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for compact and family hatchbacks/estates (2000-2006). It combines a robust cast iron block with a DOHC 16-valve design to deliver smooth, linear power and refined operation. Designed to meet Euro 3 emissions standards, it prioritized drivability and mechanical refinement for its era.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.7 mm × 93.0 mm | |
| Power output | 100 kW (136 PS) | |
| Torque | 191 Nm @ 3,750 rpm | |
| Fuel system | Sequential multi-point fuel injection (Magneti Marelli) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven camshafts | |
| Oil type | Mineral or semi-synthetic 10W-40 or 5W-40 | |
| Dry weight | 125 kg |
The DOHC 16-valve design provides a smooth, refined character but demands strict adherence to timing belt replacement intervals (every 90,000 km) to prevent catastrophic engine failure. Vigilance for camshaft position sensor failure is essential; any sign of starting issues or erratic running should be investigated immediately. Using the correct viscosity oil (10W-40/5W-40) ensures optimal lubrication for the twin camshafts and hydraulic lifters.
Oil Specs: Requires mineral or semi-synthetic 10W-40 or 5W-40 (Renault Service Manual 77 11 296 889). ACEA A3 specification is suitable.
Emissions: Euro 3 certification applies to all 2000–2006 models (VCA Type Approval #VCA/EMS/5683). No market-specific variations for this standard.
Power Ratings: Measured under EEC 80/1269 standards. This 136 PS rating is for the F4R 741 variant (Renault Group PT-2003).
Renault Technical Information System: Docs TN 4302A, Service Manual 77 11 296 889
VCA Type Approval Database (VCA/EMS/5683)
EEC Directive 80/1269/EEC
The Renault F4R 741 was used across Renault's Mégane II/Laguna II platforms with transverse mounting. This engine received minor platform-specific adaptations-different intake manifolds and engine mounts-and was eventually replaced by the F4RT turbocharged engine, creating clear generational boundaries. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the front face of the cylinder block, near the gearbox flange (Renault Service Manual 77 11 296 889). The full code is "F4R 7xx" where "xx" denotes the specific sub-variant (e.g., 741, 744). Visually, it can be identified by its silver or black rocker cover and the "F4R" casting on the block. Critical differentiation from the F4R 712: The F4R 741 typically has a slightly different ECU and camshaft profile for its specific power and torque curve.
The F4R 741's primary reliability risk is exhaust camshaft position sensor failure, with elevated incidence in high-mileage or humid environments. Renault workshop data indicates this is a common cause of no-start or erratic running conditions for engines over 100,000 km, while general owner feedback highlights it as a frequent electrical gremlin. Timely replacement of the entire timing belt kit is also critical to prevent catastrophic engine damage.
Analysis derived from Renault technical bulletins (2000-2006) and aggregated owner repair data (2002-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F4R-741.
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