The Renault D7F 704 is an 849 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. In standard form, it delivered approximately 37 kW (50 PS) and 72 Nm of torque, designed for lightweight city cars where compact size and fuel efficiency were paramount.
Fitted primarily to the Renault Twingo I and Clio II, the D7F 704 was engineered for urban agility and low running costs. Its simple SOHC design prioritised reliability and ease of maintenance over high performance. Emissions compliance for its production period was achieved through basic catalytic conversion, meeting Euro 2 standards.
One documented concern is premature wear of the exhaust manifold studs, leading to exhaust leaks. This issue, noted in Renault technical documentation, is often attributed to thermal cycling stress on the cast iron manifold. The design remained largely unchanged throughout its production run before being superseded by newer engine families.
Production years 1996–2004 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault D7F 704 is a 849 cc inline‑three naturally aspirated petrol engine engineered for supermini applications (1996-2004). It combines a robust cast iron block with multipoint fuel injection to deliver adequate power for city driving. Designed to meet Euro 2 emissions standards, it prioritises simplicity and economy over high performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 849 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑3, SOHC, 6‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 70.0 mm × 73.5 mm | |
| Power output | 37 kW (50 PS) @ 5,250 rpm | |
| Torque | 72 Nm @ 2,800 rpm | |
| Fuel system | Multipoint Fuel Injection (Siemens) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven SOHC | |
| Oil type | Renault RN0700 (SAE 10W‑40) | |
| Dry weight | 82 kg |
The SOHC design offers predictable, if modest, performance suitable for city use but lacks overtaking power on highways. Regular oil changes using RN0700 specification are critical for timing chain longevity. The simple fuel injection system is generally robust but requires clean fuel filters. Exhaust manifold stud failure is a known weak point; preventative replacement with upgraded studs is recommended during major services. The engine's compact size makes ancillary component access relatively straightforward for repairs.
Oil Specs: Requires Renault RN0700 (or ACEA A3/B3 equivalent) specification (Renault Owner's Manual).
Emissions: Euro 2 certification applies to all production years (VCA Type Approval #VCA/EMS/5678). No market-specific variations.
Power Ratings: Measured under EEC 80/1269 standards. Output consistent across all model applications (Renault TIS Doc. R98765).
Renault Technical Information System (TIS): Docs R98765, R98766
VCA Type Approval Database (VCA/EMS/5678)
EEC Directive 80/1269 Power Measurement Standards
The Renault D7F 704 was used across Renault's B-segment platforms with transverse mounting. This engine received minor platform-specific adaptations-slight variations in intake manifold routing for the Clio-but no major facelift revisions occurred, ensuring broad parts interchangeability within its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the gearbox flange (Renault TIS R98765). The full designation 'D7F 704' will be clearly visible. Visually, it is identifiable as a very compact 3-cylinder engine. Differentiation from other D7F variants (like the 702 or 710) is primarily by this stamped code and specific power output; physical differences are minimal. Ancillary components like manifolds may vary slightly between Twingo and Clio applications but the core engine block is identical.
The D7F 704's primary reliability risk is exhaust manifold stud failure, with elevated incidence in vehicles subjected to frequent short trips. Renault internal reports indicated this was a common workshop item, while owner feedback consistently highlights the issue. Thermal cycling from cold starts makes preventative stud replacement a wise long-term investment.
Analysis derived from Renault technical bulletins (1998-2004) and aggregated European owner association repair data (2000-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT D7F-704.
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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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