The Renault K9K 718 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, delivering outputs around 66 kW (90 PS) and 200 Nm of torque. Its compact, lightweight architecture prioritises fuel efficiency and strong low‑end torque for urban and regional driving.
Fitted to popular models like the Clio III/IV, Captur, and Duster, the K9K 718 was engin…
Production years 2007–2010 meet Euro 4 standards; 2011–2015 models meet Euro 5; 2016–2018 models meet Euro 6 compliance depending on market .
The Renault K9K 718 is a 1,461 cc inline‑four turbo‑diesel engine engineered for compact hatchbacks, crossovers, and SUVs (2007-2018). It combines common‑rail direct injection with a simple SOHC 8-valve layout to deliver strong low‑end torque and exceptional fuel economy. Designed to meet Euro 4 (and later Euro 5/Euro 6) standards, it balances everyday performance with 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 (Siemens) | |
Emissions standard | Euro 4 (2007–2010); Euro 5 (2011–2015); Euro 6 (2016–2018) | |
Compression ratio | 18.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed‑geometry turbo (Garrett) | |
Timing system | Belt‑driven (front‑mounted) | |
Oil type | Renault RN0700 (SAE 5W‑40) | |
Dry weight | 108 kg |
The Renault K9K 718 was used across Renault's B and crossover platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the Duster and revised intake manifolds in the Clio IV-and from 2011 and 2016 the adoption of emissions hardware for Euro 5 and Euro 6 compliance, creating minor service part differences. All adaptations are documented in OEM technical bulletins.
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The K9K 718's primary documented concern is high-pressure fuel pump failure, with elevated incidence in high-mileage or fuel-contaminated vehicles. Renault internal reports noted this issue across the production run, while owner feedback often cites EGR valve and DPF clogging as common emissions faults. Neglecting the 120,000 km timing belt interval is a critical risk, leading to total engine destruction.
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
Yes, the K9K 718 is generally reliable if maintained correctly. Its 8-valve SOHC design is simple and robust. The main risks are high-pressure fuel pump failure (often due to poor fuel quality) and DPF/EGR issues on post-2011 models. With strict adherence to the 120,000 km belt change, regular fuel filter replacements, and using quality diesel, it can easily exceed 250,000 km.
The most frequent issues are high-pressure fuel pump failure, EGR/DPF clogging causing limp mode, and glow plug/relay failures leading to cold-start difficulties. The single most critical issue is timing belt failure due to missed service intervals, which destroys the engine. These are well-documented in Renault service bulletins.
This 1.5L dCi 90 diesel engine was used in Renault's popular lineup from 2007-2018. Key models include the Clio III (2007-2012), Clio IV (2012-2018), Captur (2013-2018), and the Dacia Duster (2010-2018). It powered the 90 PS diesel trim levels across these vehicles.
Minor gains are possible. The K9K 718 responds modestly to ECU remaps, typically yielding 15-25 kW extra by increasing boost and fuel pressure. Significant power increases risk damaging the stock turbo and fuel system. It's best suited to its stock, ultra-economical tuning for longevity.
Fuel economy is excellent. Expect around 4.5-5.5 L/100km (52-63 mpg UK) in mixed driving for a Clio or Captur. The heavier Duster may achieve 5.0-6.0 L/100km (47-56 mpg UK). Figures are heavily dependent on driving style, with gentle driving easily achieving sub-5.0 L/100km.
Yes. The K9K 718 is an interference engine. If the timing belt fails or jumps, the pistons will collide with the open valves, causing severe internal damage requiring a full engine rebuild or replacement. This makes the 120,000 km belt change interval absolutely non-negotiable.
Renault specifies a 5W-40 synthetic oil meeting the RN0700 standard. This is crucial for lubricating the high-pressure fuel pump and, on DPF-equipped models, for minimizing ash content that can clog the filter. Change intervals should not exceed 20,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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