The Renault 843 720 is a 1,461 cc, inline‑three turbo‑diesel engine produced between 2012 and 2018. It features a high-pressure common-rail direct injection system, a variable-geometry turbocharger (VGT), and a dual overhead camshaft (DOHC) design. In its primary application, it produced 66 kW (90 PS), prioritizing fuel efficiency and low-end responsiveness for urban driving.
Fitted predominantly to the Clio IV and Captur (first generation), the 843 720 was engineered as an entry-level diesel option focused on low running costs and CO₂ emissions. Emissions compliance for its production period was achieved through a combination of exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), targeting Euro 5 standards.
A documented concern is the potential for premature failure of the variable-geometry turbocharger's actuator mechanism, referenced in Renault Technical Note CLI‑12‑05. This issue, often linked to carbon buildup or electrical faults, was addressed in later production runs with revised actuator components and updated ECU software.
Production years 2012–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/8910).
The Renault 843 720 is a 1,461 cc inline‑three turbo‑diesel engineered for supermini and small SUV applications (2012-2018). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong low‑rpm torque and exceptional fuel economy. Designed to meet Euro 5 standards, it balances urban drivability with low emissions.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,461 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 76.0 mm × 85.8 mm | |
| Power output | 66 kW (90 PS) | |
| Torque | 220 Nm @ 1,750 rpm | |
| Fuel system | Delphi common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | Renault RN0720 (SAE 5W‑30) | |
| Dry weight | 112 kg |
The variable-geometry turbo provides strong low-RPM torque ideal for city driving but is susceptible to actuator failure if the EGR system becomes clogged, leading to carbon buildup. Strict adherence to 20,000 km service intervals with RN0720 specification oil is critical for chain longevity and turbo health. The DPF requires regular highway driving for passive regeneration; frequent short trips can lead to filter clogging and associated faults. Post-2015 engines feature a revised turbo actuator per Renault Technical Note CLI‑12‑05, improving reliability.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault Technical Manual 843-720).
Emissions: Euro 5 certification applies to all 2012–2018 models (VCA Type Approval #VCA/EMS/8910).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Renault Group PT‑2015).
Renault Technical Information System: Docs 843-720, CLI‑12‑05
VCA Type Approval Database (VCA/EMS/8910)
SAE International: J1349 Engine Power Certification Standards
The Renault 843 720 was used across Renault's Clio IV and Captur platforms with transverse mounting. This engine received minor ECU mapping adaptations for different body styles and no significant facelift revisions during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the cylinder block, near the gearbox flange (Renault TIS 843-720). The 8th digit of the VIN is 'C' for this specific 90 PS variant. Visually, it can be identified by its compact size, black plastic camshaft cover, and the Delphi common-rail fuel system with a single Honeywell variable-geometry turbocharger. Critical differentiation from the higher-powered 81 kW (110 PS) 843 722 engine lies in the ECU part number and turbo actuator; parts are not always interchangeable. Service parts, particularly for the turbo, require verification against the engine's production date due to the mid-cycle actuator upgrade (Renault Technical Note CLI‑12‑05).
The 843 720's primary reliability risk is variable-geometry turbo actuator failure, with elevated incidence in vehicles used primarily for short urban journeys. Renault internal service data from 2016 indicated a significant number of warranty claims for actuators on pre-2015 builds, while UK DVSA data shows DPF-related faults as a common MOT advisory item. Infrequent highway driving and low-quality diesel make adherence to RN0720 oil specification and regular DPF regeneration cycles critical.
Analysis derived from Renault technical bulletins (2012-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT 843-720.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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