The Renault K9K 740 is a 1,461 cc, inline‑three turbo‑diesel engine produced between 2008 and 2015. It features a single overhead camshaft (SOHC), common rail direct injection, and a fixed‑geometry turbocharger. In its standard 64 kW (87 PS) tune, it delivers 200 Nm of torque, with the variable nozzle turbine (VNT) technology enabling strong low‑rpm response for urban drivability.
Fitted to models like the Clio III, Mégane III, and Kangoo, the K9K 740 was engineered for c…
Production years 2008–2012 meet Euro 4 standards; 2013–2015 models may have Euro 5 compliance depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Renault K9K 740 is a 1,461 cc inline‑three turbo‑diesel engineered for superminis and light vans (2008-2015). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver responsive low‑end torque and frugal operation. Designed to meet Euro 4 (and some market‑specific Euro 5) standards, it balances city efficiency with highway capability.
| 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 | 64 kW (87 PS) | |
Torque | 200 Nm @ 1,900 rpm | |
Fuel system | Siemens SID804 common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (pre‑2013); Euro 5 depending on market | |
Compression ratio | 15.6:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed‑geometry turbo (Garrett) | |
Timing system | Chain‑driven | |
Oil type | Renault RN0700 or RN0710 (SAE 5W‑30) | |
Dry weight | 110 kg |
The Renault K9K 740 was used across Renault's B/C-segment platforms with transverse mounting and Nissan for selected models. This engine received platform-specific adaptations-different intake manifolds for the Clio versus the Kangoo-and from 2012 minor ECU revisions for emissions, 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 740's primary reliability risk is EGR system clogging, with elevated incidence in urban, short-trip usage. Renault internal service data indicates a high frequency of EGR-related repairs before 100,000 km, while UK DVSA MOT records show EGR faults as a leading cause of diesel particulate filter (DPF) warning lights. Infrequent highway driving and low-quality fuel make preventative maintenance critical.
Analysis derived from Renault technical bulletins (2008-2015) 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 740 is generally robust mechanically, with the chain-driven camshaft being very durable. Its main weakness is the EGR system, which requires attention in city-driven cars. With proactive maintenance, especially cleaning the EGR every 60,000 km and using the correct 5W-30 oil, these engines can easily surpass 200,000 km without major issues.
The most frequent issues are EGR valve/cooler clogging, glow plug module failure, and turbo actuator faults. Injector seal leaks are also common as the engine ages. These are well-documented in Renault's technical service bulletins and are the primary reasons for workshop visits on these engines.
This 1.5L dCi engine was widely used in the Clio III (2008-2012), Mégane III (2008-2015), and Kangoo (2008-2015). It was also found in the Nissan Note (2010-2013) and some Dacia models like the Sandero and Logan, where it was badged as the 1.5 dCi 85.
Yes, it is a popular candidate for tuning. A simple ECU remap can safely increase power to around 100-110 PS and torque to 220-240 Nm. The standard internals are strong enough for this level of increase. More aggressive tuning requires upgraded injectors and potentially a hybrid turbo for reliability.
Excellent for its era. In a Renault Clio, expect real-world figures of 4.5-5.0 L/100km (56-52 mpg UK) on a mixed run. In larger cars like the Mégane, it’s closer to 5.0-5.5 L/100km (56-51 mpg UK). Highway cruising can drop consumption below 4.0 L/100km (70+ mpg UK) in optimal conditions.
Yes. Like virtually all modern engines, the K9K 740 is an interference design. If the timing chain were to fail (which is rare), the pistons would collide with the valves, causing catastrophic internal damage. Fortunately, the chain is very reliable with proper oil changes.
Renault mandates oil meeting RN0700 or RN0710 specifications, typically a 5W-30 synthetic. Using the correct low-ash, low-SAPS oil is critical for protecting the emissions systems (EGR, DPF) and ensuring the timing chain is properly lubricated. Change intervals should not exceed 20,000 km or 1 year.
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