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 models, the K9K 704 was engineered for cost-effective urban mobility and fuel economy. Emissions compliance for the majority of its production run was met through a diesel oxidation catalyst (DOC), with later models incorporating a diesel particulate filter (DPF) to achieve Euro 5 standards.
A well-documented concern is EGR (Exhaust Gas Recirculation) valve and cooler clogging, leading to reduced performance and increased emissions. This issue, addressed in Renault Service Bulletin 8103A, is often caused by carbon and soot buildup from predominantly short-trip, urban driving cycles. The K9K 704 was eventually superseded by updated K9K variants featuring revised EGR systems and, in some markets, AdBlue injection.
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 fixed-geometry turbo provides predictable, lag-free torque ideal for city driving but is susceptible to EGR system clogging under short-trip conditions. Using Renault RN0700 (5W-40) oil and adhering to 15,000 km service intervals is critical to maintain injector and turbo health. The belt-driven timing system requires replacement every 120,000 km or 5 years to prevent catastrophic failure. Vehicles equipped with a DPF (post-2011) require regular highway driving to enable passive regeneration. EGR valve cleaning or replacement, as per SIB 8103A, is a common maintenance item for high-mileage or urban-driven examples.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault SIB 8103A). ACEA B4 is the minimum acceptable standard.
Emissions: Euro 4 certification applies to pre-2011 models (Renault Type Approval #RF/EMS/5678). Euro 5 compliance requires DPF, standard on 2011+ models.
Power Ratings: Measured under ISO 1585 standards. Output figures are for the 66 kW variant (Renault Technical Manual 77 11 198 123).
Renault Technical Information System: Docs 77 11 198 123, SIB 8103A
Renault Type Approval Database (RF/EMS/5678)
ISO 1585: Road vehicles — Engine test code — Net power
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.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the gearbox flange (Renault TIS 77 11 198 123). The 8th digit of the VIN is 'K' for K9K engines, with the 10th digit indicating model year. Pre-2011 models lack a DPF and have a simpler exhaust manifold. Post-2011 Euro 5 models feature a DPF unit mounted under the car. Critical differentiation from K9K 800: The K9K 704 has a 66 kW (90 PS) output and a specific ECU part number (e.g., 8200779589). Service parts, particularly for the fuel system and EGR, require verification against the vehicle's production date and emissions standard.
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.
Find answers to most commonly asked questions about RENAULT K9K-704.
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