The Renault E7J 634 is a 1,390 cc, inline‑four petrol engine produced between 1996 and 2001. It features a single overhead camshaft (SOHC) and multi‑point fuel injection, delivering outputs around 55 kW (75 PS) and 114 Nm of torque. Its cast‑iron block construction provides durability for everyday urban and suburban driving.
Fitted primarily to the Renault Clio II (B/C57) and Twingo I (C06), the E7J 634 was engineered for economical, low‑maintenance motoring. It offered responsive performance for its class, prioritizing fuel efficiency and ease of service. Emissions compliance for its production period was met under Euro 2 standards.
One documented concern is premature wear of the exhaust gas recirculation (EGR) valve, which can trigger check engine lights and rough idling. This issue, referenced in Renault technical documentation, is often linked to carbon buildup from frequent short trips. The design was carried over with minor updates until the engine's phase‑out.
Production years 1996–2001 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault E7J 634 is a 1,390 cc inline‑four petrol engine engineered for supermini applications (1996-2001). It combines a robust cast‑iron block with multi‑point fuel injection to deliver economical and reliable urban performance. Designed to meet Euro 2 standards, it prioritizes simplicity and 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 @ 3,000 rpm | |
| Fuel system | Multi‑point fuel injection (Siemens) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain‑driven | |
| Oil type | Renault RN0700 or ACEA A3/B3 (SAE 10W‑40) | |
| Dry weight | 98 kg |
The SOHC design offers straightforward, economical performance but requires periodic valve clearance checks every 60,000 km to maintain efficiency and prevent noise. Using the specified RN0700 or equivalent oil is critical for protecting the hydraulic lifters and timing chain. The EGR system is prone to clogging in city-driven vehicles; cleaning it every 40,000 km can prevent performance issues and emissions faults. The timing chain is generally robust but should be inspected if a rattle develops at idle.
Oil Specs: Requires Renault RN0700 or ACEA A3/B3 specification (Renault Service Manual 6011A).
Emissions: Euro 2 certification applies to all 1996–2001 production models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards (Renault Group PT‑1998).
Renault Technical Information System: Docs TN-E7J-01, Service Manual 6011A
VCA Type Approval Database (VCA/EMS/5678)
EEC Directive 80/1269 Power Measurement Standards
The Renault E7J 634 was used across Renault's Clio II and Twingo I platforms with transverse mounting. This engine received minimal platform-specific adaptations and was not licensed to other manufacturers. All applications are documented in OEM parts catalogues.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Renault Service Manual 6011A). The 8th digit of the VIN typically corresponds to the engine type for Renault vehicles of this era. Visually, the E7J features a black plastic cam cover with "16V" branding (despite being 8-valve) and a Siemens fuel injection rail. Differentiate from the similar K7J engine by displacement (1.4L vs 1.2L) and specific engine mount bracket design.
The E7J 634's primary reliability risk is EGR valve clogging, with elevated incidence in urban, short-trip driving. Renault workshop data indicates this is a frequent cause of drivability complaints for high-mileage examples. Regular cleaning intervals and using quality fuel make preventative maintenance critical.
Analysis derived from Renault technical bulletins (1996-2001) and UK DVSA failure statistics (2000-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT E7J-634.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Vehicle Certification Agency (VCA)
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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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GOV.UK: Vehicle Approval
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