The Renault E7J 780 is a 1,390 cc, inline‑four petrol engine produced between 1996 and 2001. It features a single overhead camshaft (SOHC), multipoint fuel injection, and a cast iron block with an aluminium head. In standard form, it delivered 55 kW (75 PS) and 114 Nm of torque, balancing urban agility with modest highway capability.
Fitted primarily to the Clio I (B57) and Kangoo I (KC), the E7J 780 was engineered for compact vehicles requiring dependable, cost — effective p…
Production years 1996–2001 meet Euro 2 standards .
The Renault E7J 780 is a 1,390 cc inline‑four petrol engine engineered for compact hatchbacks and light commercial vehicles (1996-2001). It combines a simple SOHC valvetrain with multipoint fuel injection to deliver responsive low-to-mid range torque and low manufacturing cost. Designed to meet Euro 2 standards, it prioritises reliability and economy for mixed urban and highway driving.
| 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 (SAGEM) | |
Emissions standard | Euro 2 | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven camshaft | |
Oil type | Renault RN0700 or RN0710 (SAE 10W‑40) | |
Dry weight | 98 kg |
The Renault E7J 780 was used across Renault's B57/KC platforms with transverse mounting and no external licensing. This engine received minor platform-specific adaptations-cooling fan shroud design in the Kangoo-but no major revisions occurred during its initial production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
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The E7J 780's primary reliability risk is plastic thermostat housing failure, with elevated incidence in vehicles over 5 years old. Renault workshop data indicates this is a frequent cause of coolant loss, while its belt-driven design otherwise contributes to good long-term durability. Thermal stress makes housing 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
The E7J 780 is generally reliable if basic maintenance is followed. Its main weakness is the plastic thermostat housing, which often fails after 5-7 years. With timely replacement of the timing belt (every 60,000 km) and addressing coolant leaks promptly, these engines can easily reach 200,000 km.
The most common issues are cracked plastic thermostat housings causing coolant leaks, timing belt failure if not replaced on schedule, faulty idle control valves causing rough idle, and oil leaks from the rear camshaft seal. These are well-documented in Renault service information.
The E7J 780 was used in the first-generation Renault Clio (B57, 1996-2001) and the first-generation Kangoo (KC, 1997-2001), specifically in their base 1.4 RN petrol variants.
Minor power gains are possible with a performance exhaust or air filter, but significant tuning is limited by its SOHC 8-valve design. Expect gains of only 3-5 kW. It's better suited to its role as a dependable, economical engine rather than a performance unit.
Good for its era. Expect around 7.5 L/100km (38 mpg UK) in urban conditions and up to 5.5 L/100km (51 mpg UK) on the highway. Combined figures are typically around 6.5 L/100km (43 mpg UK) for a well-maintained vehicle.
Yes. The Renault E7J 780 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 60,000 km replacement interval absolutely critical.
Renault recommends RN0700 or RN0710 specification oil, typically a 10W-40 mineral or semi-synthetic. Using the correct specification ensures proper lubrication of the hydraulic lifters and timing belt tensioner. Change intervals should be every 10,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
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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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