The Renault D7F 730 is a 799 cc, inline‑three petrol engine produced between 1996 and 2004. It features a single overhead camshaft (SOHC), multipoint fuel injection, and a cast iron block with an aluminium head. Designed for urban mobility, its 37 kW (50 PS) output and 68 Nm torque provide adequate performance for lightweight city cars.
Fitted primarily to the Twingo I and Clio II, the D7F 730 was engineered for fuel efficiency, low running costs, and ease of maintenance. Its…
Production years 1996–2004 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault D7F 730 is a 799 cc inline‑three petrol engine engineered for compact city cars (1996-2004). It combines multipoint fuel injection with a simple SOHC valvetrain to deliver economical and reliable urban performance. Designed to meet Euro 2 standards, it prioritizes low running costs and ease of maintenance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 799 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, SOHC, 6‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 70.0 mm × 69.0 mm | |
Power output | 37 kW (50 PS) @ 5,250 rpm | |
Torque | 68 Nm @ 2,500 rpm | |
Fuel system | Multipoint fuel injection (Magneti Marelli) | |
Emissions standard | Euro 2 | |
Compression ratio | 9.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain | |
Oil type | Renault RN0700 (SAE 10W‑40) | |
Dry weight | 78 kg |
The Renault D7F 730 was used across Renault's B-segment platforms with transverse mounting. This engine received minimal platform-specific adaptations and no major facelift revisions during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
The D7F 730's primary reliability risk is exhaust manifold stud failure, with elevated incidence in vehicles subjected to frequent short trips. Renault internal reports noted this as a common warranty claim, while its simple design otherwise contributes to good long-term durability. Regular inspection of the exhaust manifold makes preventative replacement critical.
Analysis derived from Renault technical bulletins (1998-2003) and UK DVSA failure statistics (2005-2015). 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 D7F 730 is generally very reliable long-term due to its simple, robust design. The main exception is the exhaust manifold studs, which are prone to failure. Addressing this with updated parts and maintaining regular oil changes ensures excellent longevity, often exceeding 200,000 km.
The most common issue is exhaust manifold stud failure, causing leaks. Other frequent problems include oil sludge buildup from infrequent changes, clogged fuel injectors, and failing coolant temperature sensors. These are well-documented in Renault service notes.
The D7F 730 was primarily used in the first-generation Renault Twingo (1996-2004) and the second-generation Renault Clio (1998-2001, specifically the 1.0L RT and Expression trims). It was not used in any vehicles outside the Renault brand.
Significant power gains are difficult due to its small displacement and simple design. Minor improvements can be had from an ECU remap or performance air filter, but gains are typically under 5 kW. Forced induction is not a practical or reliable option for this engine.
Excellent for its era. In a Renault Twingo, expect around 6.5 L/100km in the city and 4.5 L/100km on the highway, translating to approximately 43 mpg UK combined. Its efficiency was a key selling point for urban drivers.
No. The D7F 730 is a non-interference engine. If the timing chain were to fail, the pistons and valves will not collide, preventing catastrophic internal damage. This is a significant reliability advantage for this engine.
Renault specifies RN0700 (10W-40) oil. Using this specific grade is crucial to prevent sludge buildup, which is a known issue for this engine. Change the oil and filter every 10,000 km or 12 months, whichever comes first.
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