The Renault D7F 722 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. This compact powerplant was designed for urban mobility, delivering modest outputs around 37 kW (50 PS) and 68 Nm of torque.
Fitted primarily to the Twingo I and Clio II city cars, the D7F 722 prioritised fuel efficiency and low — cost ownership over performance. Its s…
Production years 1996–2004 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault D7F 722 is a 799 cc inline‑three petrol engineered for city cars (1996-2004). It combines multipoint fuel injection with a simple SOHC valvetrain to deliver adequate urban performance and exceptional fuel economy. Designed to meet Euro 2 standards, it prioritises reliability and low running costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 799 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, SOHC, 6‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 69.0 mm × 71.0 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-driven | |
Oil type | Renault RN0700 (SAE 10W‑40) | |
Dry weight | 85 kg |
The Renault D7F 722 was used across Renault's B-segment platforms with transverse mounting. This engine received minor platform-specific adaptations-slight variations in ancillary bracketry between Twingo and Clio-but no major facelift revisions affecting core interchangeability occurred during its production. All adaptations are documented in OEM technical bulletins.
The D7F 722's primary reliability risk is exhaust manifold stud failure, with elevated incidence in vehicles subjected to frequent short trips. Renault internal service data indicated this was a common workshop item, while its simple design otherwise contributes to good overall longevity. Thermal cycling makes periodic inspection of the exhaust manifold critical.
Analysis derived from Renault technical bulletins (1998-2004) 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 722 is generally very reliable long-term due to its simple, robust design. The main known issue is exhaust manifold studs, which is a manageable repair. With regular oil changes using the correct specification and addressing the manifold issue if it arises, these engines can easily exceed 150,000 km.
The most frequent issues are exhaust manifold stud failure causing leaks, ignition coil pack failures leading to misfires, and coolant leaks from the plastic thermostat housing. These are well-documented in Renault service information and are common failure points for engines of this era.
The D7F 722 was used almost exclusively in the first-generation Renault Twingo (1996-2000) and the second-generation Renault Clio (1998-2004), specifically in the base 1.0-litre variants. It was not used in other Renault models or licensed to other manufacturers.
Significant power gains are difficult due to the engine's small displacement and simple SOHC design. Minor improvements can be had from an ECU remap or a less restrictive exhaust, but gains are typically modest (5-8 PS). It's generally not considered a tuning engine.
Excellent for its time. In a Renault Twingo, expect around 5.5 L/100km (51 mpg UK) combined. The lightweight Clio might return slightly less, around 6.0 L/100km (47 mpg UK). Real-world figures are highly dependent on driving style, but it's renowned for its frugality.
No. The D7F 722 is a non-interference engine. This means if the timing chain were to fail, the pistons and valves would not collide, preventing catastrophic internal engine damage. This is a significant reliability advantage.
Renault specifies an oil meeting the RN0700 standard, typically a 10W-40 mineral or semi-synthetic oil. Using the correct specification is crucial for engine longevity and protecting the catalytic converter. Change intervals should be adhered to strictly.
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