The Renault K9K 704 is a 1,461 cc, inline‑three turbo‑diesel engine produced between 2007 and 2018. It features a cast iron block, aluminium head, common rail direct injection, and a fixed geometry turbocharger. In its most common application, it delivers 66 kW (90 PS) and 200 Nm of torque, offering a blend of urban efficiency and adequate low — end pull for its vehicle class.
Fitted primarily to the Renault Clio III, Twingo II, and Modus, as well as Dacia Logan and Sandero mode…
Production years 2007–2010 meet Euro 4 standards; 2011–2018 models with DPF meet Euro 5 (Renault Type Approval #RF/EMS/5678).
The Renault K9K 704 is a 1,461 cc inline‑three turbo‑diesel engineered for supermini and compact city cars (2007-2018). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver frugal urban efficiency and adequate low‑end torque. Designed to meet Euro 4 (and later Euro 5 with DPF), it prioritises cost‑effective mobility.
| 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) @ 4,000 rpm | |
Torque | 200 Nm @ 1,750 rpm | |
Fuel system | Siemens VDO common‑rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (pre‑2011); Euro 5 (with DPF, 2011+) | |
Compression ratio | 16.3:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Fixed geometry turbo (Garrett) | |
Timing system | Belt‑driven camshaft | |
Oil type | Renault RN0700 (SAE 5W‑40) | |
Dry weight | 110 kg |
The Renault K9K 704 was used across Renault's B/C-segment platforms with transverse mounting. This engine received platform-specific adaptations-lighter ancillaries for the Twingo and revised engine mounts for the Dacia Logan-and from 2011 the Euro 5 update introduced a DPF, creating minor parts incompatibilities. All adaptations are documented in OEM technical bulletins.
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The K9K 704's primary reliability risk is EGR system clogging, with elevated incidence in short-trip urban use. Renault internal data indicated a high frequency of EGR-related faults in vehicles with predominantly city-based mileage, while owner reports frequently cite glow plug and injector issues on high-mileage examples. Infrequent highway driving and extended oil change intervals accelerate carbon buildup, making preventative cleaning and correct oil specification critical.
Analysis derived from Renault technical bulletins (2008-2015) and aggregated owner-reported failure data (2010-2020). 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 704 is generally robust for its class, but long-term reliability heavily depends on maintenance. The EGR system is a known weak point, especially in city-driven cars. Regular oil changes with the correct specification and periodic EGR cleaning are crucial. Well-maintained examples can easily exceed 200,000 km.
The most frequent issues are EGR valve/cooler clogging, glow plug failures, and high-pressure fuel pump wear. Turbo actuator faults and injector problems are also common on high-mileage engines. These are well-documented in Renault service bulletins and owner forums.
The K9K 704 was primarily used in the Renault Clio III (2007-2012), Twingo II (2007-2014), and Modus (2007-2012). It was also fitted to Dacia Logan I (2007-2016) and Sandero I (2008-2016) models, typically badged as the 1.5 dCi 85.
Aftermarket ECU tuning is common on the K9K-704 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.
Excellent for its era. In a Renault Clio III, expect real-world figures of 4.5-5.0 L/100km (56-50 mpg UK) on a mixed cycle. Highway driving can yield under 4.0 L/100km (70+ mpg UK), while heavy city use might see 6.0 L/100km (47 mpg UK).
Yes. The K9K 704 is an interference engine. If the timing belt snaps or jumps, the pistons will collide with the open valves, causing severe internal damage. Adhering to the strict 120,000 km or 5-year replacement interval is non-negotiable.
Renault mandates RN0700 specification oil, typically a 5W-40 synthetic blend. Using the correct oil is vital for protecting the turbocharger, fuel pump, and preventing excessive soot buildup that clogs the EGR system. Change intervals should not exceed 15,000 km or 1 year.
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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