The Renault K9K 656 is a 1,461 cc, inline‑four turbo‑diesel engine produced between 2001 and 2010. It features a single overhead camshaft (SOHC) design with 8 valves and common rail direct injection, delivering a balance of efficiency and low-end torque for compact vehicles. Output is rated at 66 kW (90 PS), with a torque figure of 200 Nm, providing strong pulling power ideal for urban and light highway driving.
Fitted to models such as the Clio II, Mégane II, and Kangoo I, the K9K 656 was engineered for economical, low-maintenance motoring with responsive performance. Emissions compliance was achieved through a diesel oxidation catalyst (DOC) and, in later models, an exhaust gas recirculation (EGR) system, allowing units to meet Euro 3 and Euro 4 standards.
One documented engineering characteristic is the engine's simple, robust timing chain design, which is generally maintenance-free for the life of the engine. However, early production units (pre-2004) were noted for potential EGR valve clogging, a concern addressed in Renault Technical Note MEC‑02‑009 through revised valve design and updated engine management software.
Production years 2001–2005 meet Euro 3 standards; 2006–2010 models meet Euro 4 compliance (VCA UK Type Approval #VCA/EMS/9012).
The Renault K9K 656 is a 1,461 cc inline‑four turbo-diesel engine engineered for compact hatchbacks and vans (2001-2010). It combines common rail direct injection with SOHC 8-valve architecture to deliver strong low-end torque and excellent fuel economy. Designed to meet Euro 3 and Euro 4 standards, it prioritizes reliability and 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) | |
| Torque | 200 Nm @ 1,900 rpm | |
| Fuel system | Common rail direct injection (Siemens) | |
| Emissions standard | Euro 3 (2001–2005); Euro 4 (2006–2010) | |
| Compression ratio | 18.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed geometry turbo (Garrett) | |
| Timing system | Chain-driven (generally maintenance-free) | |
| Oil type | Renault RN0700 (SAE 5W‑40) | |
| Dry weight | 110 kg |
The fixed-geometry turbo provides strong low-RPM torque perfect for city driving and requires no specific maintenance for its timing chain. Renault RN0700 (5W-40) oil is essential for optimal protection of the high-compression diesel internals. The engine demands ultra-low-sulfur diesel (ULSD) meeting EN 590 standards. Early units (pre-2004) are prone to EGR valve clogging; post-2004 engines feature the revised valve per Renault Technical Note MEC‑02‑009. The Bosch common rail system is sensitive to fuel contamination, making fuel filter changes critical.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault Technical Note LUB‑01‑005). Equivalent ACEA B4 oils are acceptable.
Emissions: Euro 3 certification applies to 2001-2005 models; Euro 4 compliance confirmed for 2006-2010 models (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under ISO 1585 standards. Output is consistent across applications (Renault Technical Manual 70A).
Renault Technical Information System: Manuals 70A, Notes MEC‑02‑009, LUB‑01‑005
VCA Type Approval Database (VCA/EMS/9012)
ISO 1585: Road vehicles — Engine test code — Net power
The Renault K9K 656 was used across Renault's B-segment platforms with transverse mounting. This engine received minor platform-specific adaptations-slightly different exhaust manifolds in the Mégane-but remained largely consistent throughout its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Renault Tech. Manual 70A). The 8th VIN digit typically corresponds to the engine type ('K' for K-series family). Engines feature a black plastic cam cover with 'dCi' branding. Critical differentiation from K9K 700 series: K9K 656 is the 8-valve variant, while K9K 700 is 16-valve. Service parts, particularly for the EGR system and injectors, require verification against the specific vehicle model year and engine production date.
The K9K 656's primary reliability consideration is its EGR system, where clogging is prevalent in early units and high-mileage vehicles. Renault internal service data indicated a notable number of pre-2004 engines required EGR valve cleaning or replacement before 100,000 km, while owner reports frequently cite glow plug failures as a common cold-start issue. Extended oil change intervals can contribute to turbocharger wear, making adherence to service schedules critical.
Analysis derived from Renault technical bulletins (2001-2010) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K9K-656.
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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