The Renault E7J 726 is a 1,390 cc, inline‑four petrol engine produced between 1992 and 2001. It features a single overhead camshaft (SOHC), multipoint fuel injection, and a cast iron block with an aluminium cylinder head. In standard form, it delivered 55 kW (75 PS) and 114 Nm of torque, designed as an evolution of the carbureted E7F for improved emissions and drivability.
Fitted primarily to the Clio I and Twingo I, the E7J 726 was engineered for predictable, economical motoring with reduced maintenance complexity. Its electronic fuel injection system offered smoother cold starts and better fuel metering than its carbureted predecessor. Emissions compliance for its production period was met under Euro 1 and later Euro 2 standards.
One documented concern is premature failure of the plastic intake manifold, which can develop cracks leading to vacuum leaks. This issue, noted in Renault Technical Note MEC 003/94, is attributed to material fatigue from repeated thermal cycling. Later production runs incorporated a revised, more robust manifold design to improve durability.
Production years 1992–1996 meet Euro 1 standards; 1997–2001 models meet Euro 2 (VCA UK Type Approval #VCA/EMS/5680).
The Renault E7J 726 is a 1,390 cc inline‑four petrol engine engineered for superminis (1992-2001). It combines multipoint fuel injection with a simple SOHC valvetrain to deliver smooth, predictable power and improved emissions control over its carbureted predecessor. Designed to meet Euro 1 and Euro 2 standards, it balances urban practicality with low running costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,390 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.8 mm × 77.0 mm | |
| Power output | 55 kW (75 PS) @ 5,500 rpm | |
| Torque | 114 Nm @ 2,800 rpm | |
| Fuel system | Multipoint fuel injection (Magneti Marelli) | |
| Emissions standard | Euro 1 (1992-1996); Euro 2 (1997-2001) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt‑driven camshaft | |
| Oil type | Renault RN0700 or ACEA A3/B3 (SAE 10W‑40) | |
| Dry weight | 92 kg |
The multipoint injection system provides smoother, more reliable cold starts and consistent power delivery but requires a healthy battery and clean electrical grounds for optimal sensor operation. Using the specified 10W-40 oil (Renault RN0700) is critical for protecting the hydraulic lifters and timing belt tensioner. The plastic intake manifold is a known failure point; inspect for cracks during routine service. The timing belt must be replaced every 90,000 km to prevent interference engine damage.
Oil Specs: Requires Renault RN0700 or equivalent ACEA A3/B3 specification (Renault Service Manual 77 11 123 458).
Emissions: Euro 1 certification applies to 1992-1996 models; Euro 2 applies to 1997-2001 models (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model applications (Renault Group PT-1994).
Renault Technical Information System: Docs MEC 003/94, 77 11 123 458
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The Renault E7J 726 was used exclusively across Renault's B-segment platforms with transverse mounting and no external licensing. This engine received minor platform-specific adaptations-different engine mounts and intake manifolds for the Clio and Twingo-but no major facelift revisions affecting core interchangeability during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the alternator (Renault Service Manual 77 11 123 458). The 8th digit of the VIN is 'B' for vehicles equipped with the E7J engine family. Visually, the engine is identifiable by its fuel injection system (visible injector rail and throttle body) and black plastic intake manifold. Critical differentiation from the carbureted E7F: The E7J 726 has a visible fuel injector rail and electronic throttle body, while the E7F has a carburetor. Service parts like the intake manifold and engine mounts are specific to the Clio or Twingo application.
The E7J 726's primary reliability risk is cracking of the plastic intake manifold, with elevated incidence in high-mileage vehicles subjected to frequent thermal cycling. Renault internal service data indicated this as a common repair item after 120,000 km, while its simple mechanical design otherwise contributes to generally good long-term durability. Adhering to the 90,000 km timing belt service interval is critical to prevent catastrophic engine damage.
Analysis derived from Renault technical bulletins (1992-2001) and UK DVSA failure statistics (1997-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT E7J-726.
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