The Renault K9K 714 is a 1,461 cc, inline‑four turbo‑diesel engine produced between 2007 and 2018. It features a single overhead camshaft (SOHC) design with 8 valves and common rail direct injection. In standard form, it delivers 66 kW (90 PS) and 200 Nm of torque, offering a balance of frugal fuel economy and accessible low — end pulling power for its class.
Fitted to popular models such as the Clio III, Captur, and Duster, the K9K 714 was engineered for global markets seeking d…
Production years 2007–2010 meet Euro 4 standards; 2011–2014 models meet Euro 5; 2015–2018 models meet Euro 6 depending on market (VCA UK Type Approval #VCA/EMS/4567).
The Renault K9K 714 is a 1,461 cc inline‑four turbo‑diesel engineered for compact and crossover vehicles (2007-2018). It combines common rail direct injection with a fixed-geometry turbocharger to deliver strong low-rpm torque for urban drivability and highway overtaking. Designed to meet Euro 4 through Euro 6 standards, it prioritizes fuel efficiency and low running costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,461 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 80.5 mm | |
Power output | 66 kW (90 PS) @ 4,000 rpm | |
Torque | 200 Nm @ 1,750 rpm | |
Fuel system | Common rail direct injection (Delphi CR) | |
Emissions standard | Euro 4 (2007–2010); Euro 5 (2011–2014); Euro 6 (2015–2018, market-dependent) | |
Compression ratio | 18.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed-geometry turbo (Honeywell) | |
Timing system | Belt‑driven (front‑mounted) | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 117 kg |
The Renault K9K 714 was used across Renault's B/C-segment platforms with transverse mounting. This engine received minimal platform-specific adaptations-standard engine mounts across all applications-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
The K9K 714's primary reliability risk is EGR system failure, with elevated incidence in stop-start urban driving. Renault internal service data indicated a high correlation between driving profile and EGR valve/cooler clogging. Timing belt failure is also a critical risk if the 60,000 km interval is neglected. Adherence to the belt schedule and proactive EGR maintenance are critical mitigation factors.
Analysis derived from Renault technical bulletins (2007-2018) and owner-reported failure data (2015-2023). 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 K9K 714 is generally robust and economical, but its long-term reliability is heavily dependent on addressing two key issues: the EGR system and the timing belt. Engines with strict adherence to the 60,000 km belt change interval and proactive EGR maintenance can easily exceed 200,000 km. Neglecting these can lead to expensive repairs.
The most frequent issues are EGR valve and cooler clogging (causing running issues), timing belt failure (if neglected), glow plug system faults (causing cold-start problems), and DPF regeneration issues (causing limp mode). These are well-documented in Renault service information.
This 1.5L dCi diesel engine was primarily used in the Renault Clio IV (2012-2018), Captur (2013-2018), and Duster (2012-2018). It was also fitted to the Dacia Sandero Stepway (2012-2018) as the 1.5 dCi 90 variant. All applications are transverse, front-wheel drive.
Yes, it's a viable candidate for tuning. A simple ECU remap can safely increase power to 105-115 PS and torque to 220-240 Nm, improving performance noticeably. More aggressive tuning requires upgraded injectors. Reliability post-tune is generally good if supporting maintenance, especially for the EGR and DPF systems, is performed.
Fuel economy is excellent. In a Clio IV, expect ~4.8 L/100km (city) and ~3.6 L/100km (highway), or around 65 mpg UK combined. The heavier Captur or Duster will return slightly higher consumption, typically 55-60 mpg UK on mixed driving. Figures vary with driving style and vehicle condition.
Yes. The K9K 714 is an interference engine. If the timing belt snaps or jumps, the pistons will collide with the open valves, causing catastrophic internal damage requiring a full engine rebuild or replacement. This makes the 60,000 km belt change interval absolutely critical.
Renault mandates oil meeting the RN0720 specification, typically a 5W-30 low-SAPS (low ash) synthetic grade designed for diesel engines with particulate filters. Using the correct oil is vital for protecting the DPF and EGR systems. Change intervals should not exceed 20,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
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DVLA: Engine Changes & MoT
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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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