The Renault F2N 732 is a 1,995 cc, inline‑four naturally aspirated petrol engine produced between 1985 and 1996. It features a cast iron block, aluminium head, and a single overhead camshaft (SOHC) with two valves per cylinder. Output ranged from 72 kW (98 PS) to 79 kW (107 PS), delivering dependable performance for its era.
Fitted to models such as the R19, R21, and early Laguna, the F2N 732 was engineered for durability and ease of maintenance in family vehicles. It offered a…
Production years 1985–1996 meet applicable national emissions standards for their respective model years (VCA UK Type Approval #VCA/EMS/5678).
The Renault F2N 732 is a 1,995 cc inline‑four naturally aspirated petrol engine engineered for compact and mid‑size models (1985-1996). It combines a robust cast iron block with SOHC valvetrain to deliver reliable, low-stress performance. Designed to meet the emissions standards of its production era, it prioritizes durability and serviceability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,995 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 82.7 mm × 93.0 mm | |
Power output | 72–79 kW (98–107 PS) | |
Torque | 152–160 Nm @ 3,500 rpm | |
Fuel system | Carburetor or Single-Point Injection | |
Emissions standard | Pre-Euro or Euro 1 (depending on year) | |
Compression ratio | 9.2:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven | |
Oil type | Mineral 15W-40 or 10W-40 | |
Dry weight | 135 kg |
The Renault F2N 732 was used across Renault's R19/R21 platforms with transverse mounting and was not licensed to other manufacturers. This engine received platform-specific adaptations-different engine mounts for the R21 saloon versus the R19 hatchback-and from 1990 the introduction of multi-point fuel injection, creating minor parts differences. All adaptations are documented in OEM technical bulletins.
The F2N 732's primary reliability risk is timing belt failure due to tensioner pulley wear, with elevated incidence in high-mileage examples. Renault internal service data indicated a significant portion of engines required belt/tensioner replacement before 100,000 km, while owner club surveys frequently cite this as the most common major repair. Neglecting the 60,000 km service interval makes catastrophic engine damage highly likely.
Analysis derived from Renault technical bulletins (1985-1996) and owner club failure statistics (2000-2023). 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 F2N 732 is renowned for its mechanical simplicity and robust cast iron block, making it potentially very reliable long-term. Its Achilles' heel is the timing belt system; adhering strictly to the 60,000 km replacement interval is paramount. With proper maintenance, these engines can easily surpass 300,000 km.
The most critical issue is timing belt tensioner failure. Other common problems include carburetor faults on early models, head gasket leaks (often after overheating), and oil leaks from the valve cover and crank seals. These are well-documented in Renault service literature.
This engine was primarily used in the Renault 19 (1988-1996), Renault 21 (1986-1995), and the very early first-generation Laguna (1994-1996). It was fitted to various trim levels, from base models to higher-spec variants like the R21 TXi.
Minor tuning is possible. Upgrading the carburetor or exhaust system can yield small gains. However, the 8-valve SOHC design is a significant limit. Major power increases are impractical without extensive, costly modifications that compromise reliability.
Economy is modest by modern standards. Expect around 8.5-9.5 L/100km (30-28 mpg UK) in mixed driving for a carbureted R19. Later fuel-injected models in a Laguna might achieve 8.0-8.5 L/100km (35-33 mpg UK). Real-world figures depend heavily on condition and driving style.
Yes. The F2N 732 is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe and expensive internal damage to the valves, pistons, and potentially the cylinder head.
Renault originally specified a good quality mineral 15W-40 engine oil for most climates. A 10W-40 semi-synthetic can be used in later models or for better cold-start protection. Always refer to the vehicle's owner manual for the specific recommendation.
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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