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 eng…
Production years 1985–1996 meet Euro 1 standards .
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 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.
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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 manufacturer technical service bulletins and industry workshop records. 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
Yes, the F2N 742 is renowned for its exceptional long-term reliability and durability due to its simple, all-mechanical design. Its main weakness is the Bosch VE injection pump seals, which can fail with poor fuel quality. With regular oil changes, timely timing belt replacement, and using clean diesel, these engines can easily exceed 300,000 km.
The most common issues are leaking seals in the Bosch VE injection pump causing hard starting, timing belt failure if not replaced on schedule, glow plug system failures affecting cold starts, and oil leaks from the rocker cover gasket. These are well-documented in Renault service information.
The F2N 742 was used in the Renault R19 (B53, 1988-1996), Super 5 (B54, 1985-1990), and Express Van (KC, 1986-1996), specifically in their base TD and GTD diesel variants.
Significant power gains are very difficult due to its indirect injection and high compression design. Minor improvements can be had from pump calibration, but gains are minimal (under 5 kW). It's best appreciated for its legendary durability and economy, not performance.
Excellent for its era and type. Expect around 6.0 L/100km (47 mpg UK) in urban conditions and up to 4.8 L/100km (59 mpg UK) on the highway. Combined figures are typically around 5.5 L/100km (51 mpg UK) for a well-maintained vehicle.
Yes. The Renault F2N 742 is an interference engine. If the timing belt fails, the pistons will collide with the open valves, causing severe internal engine damage. This makes adhering to the 80,000 km replacement interval absolutely critical.
Renault recommends RN0700 specification oil, typically a 15W-40 mineral oil. Using the correct specification is crucial for the mechanical lifters and injection pump. Change intervals should be every 10,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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