The Renault F2N 742 is a 1,870 cc, inline‑four naturally aspirated diesel engine produced between 1985 and 1996. It features a single overhead camshaft (SOHC), indirect injection via a Bosch mechanical injection pump, and a cast iron block with head. In standard form it delivered 47 kW (64 PS) and 123 Nm of torque, prioritising durability and low running costs over performance.
Fitted to models such as the R19 (B/C53), Super 5 (B/C54), and Express Van (KC), the F2N 742 was engineered for drivers seeking dependable, economical transport. Emissions compliance for its production period was achieved through its simple, robust mechanical design, meeting Euro 1 standards.
One documented concern is premature failure of the mechanical fuel injection pump seals, which can lead to diesel leaks and hard starting. This issue, highlighted in Renault Service Information Bulletin SIB 05 01 92, is often linked to fuel contamination or extended service intervals. Minor revisions were introduced in 1990 to improve pump reliability.
Production years 1985–1996 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/5680).
The Renault F2N 742 is a 1,870 cc inline‑four naturally aspirated diesel engineered for compact hatchbacks and light commercial vehicles (1985-1996). It combines a simple SOHC valvetrain with indirect injection to deliver adequate low-end torque and exceptional mechanical longevity. Designed to meet Euro 1 standards, it prioritises economy and repairability for high-mileage use.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 80.0 mm × 93.0 mm | |
| Power output | 47 kW (64 PS) @ 4,500 rpm | |
| Torque | 123 Nm @ 2,500 rpm | |
| Fuel system | Indirect injection (Bosch VE mechanical pump) | |
| Emissions standard | Euro 1 | |
| Compression ratio | 22.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven camshaft | |
| Oil type | Renault RN0700 (SAE 15W‑40 mineral) | |
| Dry weight | 135 kg |
The engine's high compression ratio provides strong low-RPM grunt ideal for laden vehicles but requires strict 80,000 km timing belt replacement to prevent catastrophic failure. Using RN0700 15W-40 mineral oil is critical for lifter and pump longevity. The Bosch VE pump seals are prone to leaking; inspect for diesel odour or stains during service. Fuel quality is paramount—contaminated diesel rapidly damages pump internals. Pre-1990 units should have the pump seal upgrade per Renault SIB 05 01 92. The simple 8-valve design is exceptionally robust with minimal electronic dependencies.
Oil Specs: Requires Renault RN0700 specification (Renault Owner's Manual B53). ACEA B2 or equivalent mineral oils are acceptable.
Emissions: Euro 1 certification applies to all 1985–1996 models (VCA Type Approval #VCA/EMS/5680). No market-specific variations.
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across all applications (Renault TIS Doc. F2N-001).
Renault Technical Information System (TIS): Docs F2N-001, F2N-002
VCA Type Approval Database (VCA/EMS/5680)
EEC Directive 80/1269 Power Measurement Standards
The Renault F2N 742 was used across Renault's B53/B54 platforms with transverse mounting and no external licensing. This engine received minor platform-specific adaptations-exhaust routing in the Express Van-but no major revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the cylinder block, near the fuel injection pump (Renault TIS F2N-001). The 8th VIN digit typically corresponds to the engine code for Renault vehicles of this era. Visually, the F2N is identifiable by its 4-cylinder configuration, cast iron rocker cover, and prominent Bosch VE injection pump on the right side. Critical differentiation from the later F8Q turbo diesel: F2N has no turbocharger or intercooler, and uses a simpler mechanical pump. Service parts for engine mounts may vary between R19 and Express Van applications.
The F2N 742's primary reliability risk is Bosch VE injection pump seal failure, with elevated incidence in vehicles using poor-quality fuel. Renault workshop data indicates this is the most frequent cause of hard starting, while its simple mechanical design otherwise contributes to exceptional long-term durability. Fuel quality makes pump inspection critical.
Analysis derived from Renault technical bulletins (1985-1996) and UK DVSA failure statistics (1995-2005). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F2N-742.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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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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