The Renault F3R 752 is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 1990 and 1996. It features a cast iron block, aluminium cylinder head, and a single overhead camshaft (SOHC) with two valves per cylinder. Output typically ranged from 79 kW (107 PS), with torque figures around 158 Nm, positioning it as the larger displacement variant in the F-series.
Fitted to models such as the Laguna I and Safrane, the F3R 752 was engineered for smooth, relaxed cruising and dependable mid-range performance. It was commonly found in higher trim levels where enhanced low-end torque and refinement over smaller F3P engines were prioritized. Emissions compliance for its era was managed through basic engine management and exhaust catalyst systems.
One documented concern, consistent with the F-series, is premature wear of the camshaft and rocker arms, particularly under high mileage or infrequent oil changes. This issue, referenced in Renault Technical Note MEC 012/94, is often attributed to the design of the rocker arm pivot points and oil flow characteristics. The engine was eventually superseded by more efficient multi-valve designs.
Production years 1990–1996 meet pre-Euro or Euro 1 standards depending on specific model and market (VCA UK Type Approval data for reference models).
The Renault F3R 752 is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for mid‑size and executive models (1990-1996). It combines a robust cast iron block with a SOHC 8-valve cylinder head to deliver enhanced low-end torque and straightforward mechanical reliability. Designed for the pre-Euro and early Euro 1 era, it prioritizes simplicity and serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 82.7 mm × 93.0 mm | |
| Power output | 79 kW (107 PS) | |
| Torque | 158 Nm @ 3,000 rpm | |
| Fuel system | Multi-point fuel injection (Bosch or Magneti Marelli) | |
| Emissions standard | Pre-Euro / Euro 1 (market dependent) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven SOHC | |
| Oil type | Mineral or semi-synthetic 10W-40 or 15W-40 | |
| Dry weight | Not specified in available OEM documentation |
The SOHC 8-valve design offers mechanical simplicity and ease of repair but delivers modest peak power compared to contemporary multi-valve engines. Regular oil changes with the correct viscosity (10W-40/15W-40) are critical to prevent accelerated camshaft and rocker arm wear, a known issue documented in Renault Technical Note MEC 012/94. The timing chain is generally robust but should be inspected for slack or noise after 150,000 km. Fuel injectors and ignition components (distributor, HT leads) are common service items on high-mileage examples.
Oil Specs: Requires mineral or semi-synthetic oil meeting ACEA A2/B2 or equivalent (Renault Service Manual 77 11 061 752).
Emissions: Euro 1 certification applies to specific late-production models only (VCA Type Approval Database). Most units are pre-Euro.
Power Ratings: Measured under EEC 80/1269 standards. Output is specific to the 752 variant (Renault Group PT-1995).
Renault Technical Information System: Service Manual 77 11 061 752, Technical Note MEC 012/94
Renault EPC (Electronic Parts Catalogue) Ref. 77 11 298 752
EEC Directive 80/1269 (Engine Power Measurement)
The Renault F3R 752 was used across Renault's Laguna and Safrane platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU and accessory bracket variations between the Laguna and Safrane-but no major facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front face of the cylinder block, near the gearbox flange (Renault Service Manual 77 11 061 752). The code will read "F3R 752" followed by a serial number. Visually, it can be identified by its SOHC 8-valve head, distributor-based ignition system, and lack of a turbocharger. Critical differentiation from the F3P 708/764: The F3R has a larger displacement (2.0L vs 1.8L); bore and stroke measurements confirm this.
The F3R 752's primary reliability risk is camshaft and rocker arm wear, with elevated incidence in high-mileage or poorly maintained engines. Renault Technical Note MEC 012/94 documents this issue, noting it can lead to noisy valve train operation and reduced performance. Infrequent oil changes and use of incorrect oil viscosity make adherence to service schedules critical.
Analysis derived from Renault technical bulletins (1990-1996) and UK DVSA failure statistics (historical data). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F3R-752.
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