The Renault K9K 774 is a 1,461 cc, inline‑three turbo‑diesel engine produced between 2008 and 2018. It features a cast iron block, aluminium cylinder head, common rail direct injection, and a fixed‑geometry turbocharger. In standard form it delivered 66 kW (90 PS), with torque figures of 200 Nm, providing strong low‑rpm pull for urban drivability.
Fitted to models such as the Clio III, Mégane III, and Dacia Duster, the K9K 774 was engineered for compact car efficiency and l…
Production years 2008–2010 meet Euro 4 standards; 2011–2018 models meet Euro 5 compliance depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Renault K9K 774 is a 1,461 cc inline‑three turbo‑diesel engineered for supermini and compact SUV applications (2008-2018). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver responsive low‑end torque and frugal fuel consumption. Designed to meet Euro 4 and Euro 5 standards, it prioritizes urban efficiency and cost‑effective ownership.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,461 cc | |
Fuel type | Diesel | |
Configuration | Inline‑3, SOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 80.5 mm | |
Power output | 66 kW (90 PS) | |
Torque | 200 Nm @ 1,750 rpm | |
Fuel system | Denso common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (pre‑2011); Euro 5 (2011+) | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed‑geometry turbo (Garrett) | |
Timing system | Belt‑driven camshaft | |
Oil type | Renault RN0710 (SAE 5W‑30) | |
Dry weight | 110 kg |
The Renault K9K 774 was used across Renault's B/C-segment platforms with transverse mounting and licensed to Dacia and Nissan. This engine received platform-specific adaptations-reinforced mounts in the Duster and revised cooling in the Mégane-and from 2011 the facelifted Clio models adopted revised ECU mapping for Euro 5 compliance, creating minor software interchange limits. Partnerships allowed Nissan's 1.5 dCi units to share core architecture. All adaptations are documented in OEM technical bulletins.
The K9K 774's primary reliability risk is EGR system clogging, with elevated incidence in short-trip urban use. Renault internal service data indicates a high frequency of EGR-related repairs on vehicles with predominantly urban mileage, while UK DVSA records show a correlation between DPF warning lights and low annual mileage for this engine. Infrequent highway driving and missed services increase deposit buildup, making adherence to the maintenance schedule critical.
Analysis derived from Renault technical bulletins (2010-2018) and UK DVSA failure statistics (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 774 is generally robust mechanically, but its long-term reliability heavily depends on maintenance and driving style. Vehicles used for long journeys and serviced regularly with the correct oil can exceed 200,000 km. The main threats are EGR/DPF issues from short trips and neglected services.
The most frequent issues are EGR valve/cooler clogging, DPF regeneration failures, turbo actuator faults, and injector seal leaks. These are well-documented in Renault service bulletins and are often linked to urban driving patterns and maintenance neglect.
This 1.5 dCi 90 engine was used in the Renault Clio III (2008-2012), Mégane III (2008-2015), and Kangoo II. It was also licensed to Dacia for the Duster (2010-2018) and to Nissan for the Note E11 (2010-2013) and Micra K13.
Yes, it is commonly tuned. A Stage 1 ECU remap can safely increase power to 105-115 PS and torque to 220-240 Nm. The bottom end is strong, but supporting modifications like a hybrid turbo or upgraded clutch (for manual cars) are recommended for higher power levels.
Excellent for its era. In a Clio III, expect 4.5 L/100km (63 mpg UK) on a combined cycle. Real-world figures typically range from 55-65 mpg UK, depending on the model, driving style, and whether EGR/DPF systems are functioning correctly.
Yes. The K9K 774 is an interference engine. If the timing belt snaps, the pistons will collide with the open valves, causing catastrophic engine damage. Replacing the belt at the recommended interval (typically 120,000 km or 5 years) is non-negotiable.
Renault specifies a 5W-30 synthetic oil meeting the RN0710 (or newer RN17) standard. This low-SAPS oil is critical for protecting the DPF and EGR system. Using the wrong oil will lead to premature DPF clogging and potential engine damage.
Comprehensive technical documentation and regulatory references
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