The Renault J5R 726 is a 1,332 cc, inline‑four turbocharged petrol engine produced between 2013 and 2018. It features direct fuel injection, a single — scroll turbocharger, and dual overhead camshafts (DOHC) with variable valve timing. This engine delivers 103 kW (140 PS) and 200 Nm of torque, designed to offer a blend of spirited performance and everyday efficiency for Renault's compact vehicles.
Fitted primarily to the Clio IV RS and Captur, the J5R 726 was engineered fo…
Production years 2013–2018 meet Euro 5 standards .
The Renault J5R 726 is a 1,332 cc inline‑four turbocharged petrol engine engineered for compact performance models (2013-2018). It combines direct injection with a single-scroll turbocharger to deliver responsive power and strong mid-range torque. Designed to meet Euro 5 standards, it balances sporty character with acceptable fuel economy for its era.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,332 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 72.2 mm × 81.3 mm | |
Power output | 103 kW (140 PS) | |
Torque | 200 Nm @ 2,000 rpm | |
Fuel system | Direct injection (Bosch MED17.4) | |
Emissions standard | Euro 5 | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single-scroll turbo (Garrett) | |
Timing system | Chain-driven | |
Oil type | Renault RN0700 5W‑40 | |
Dry weight | 115 kg |
The Renault J5R 726 was used across Renault's CMF-B platform with transverse mounting. This engine received platform-specific adaptations-optimized engine mounts and cooling for the Clio IV RS and revised exhaust routing for the Captur-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
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The J5R 726's primary reliability concern is premature wear of the timing chain tensioner, with elevated incidence in vehicles subjected to extended oil change intervals or using incorrect oil. Renault Technical Note 5543C documents this issue, while owner reports frequently cite carbon buildup on intake valves leading to rough idle. Adhering to the specified oil type and service schedule is critical for long-term reliability.
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 J5R 726 can be reliable with meticulous maintenance. Its primary long-term concern is the timing chain tensioner, which requires strict adherence to the 15,000 km oil change interval using the correct 5W-40 oil. Addressing this and performing periodic intake valve cleaning significantly improves its longevity and reliability.
The most frequently documented issues are timing chain tensioner wear (addressed in SIB 5543C), intake valve carbon buildup causing rough idle, turbocharger wastegate rattle, and high-pressure fuel pump failure. These are well-covered in Renault's technical documentation and owner advisories.
The J5R 726 1.3L TCe 140 engine was used in the fourth-generation Renault Clio RS (2013-2018) and the first-generation Renault Captur (2013-2018). It was not used in any other manufacturers' vehicles.
Aftermarket ECU tuning is common on the J5R-726 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are around 5.5-6.0 L/100km (51-47 mpg UK) depending on the model and trim. Real-world consumption varies greatly: expect 7.5-9.5 L/100km (38-30 mpg UK) in mixed driving, with highway figures closer to 5.0-5.5 L/100km (56-51 mpg UK). Aggressive driving will significantly increase consumption.
Yes. Like virtually all modern engines, the J5R 726 is an interference design. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the timing chain is durable if maintained correctly.
Renault mandates the use of RN0700 specification 5W-40 synthetic oil. This specific viscosity is critical for the proper operation of the hydraulic timing chain tensioner. Using the correct oil is non-negotiable for long-term reliability and to prevent premature tensioner wear.
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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