The Renault K9K 804 is a 1,461 cc, inline‑three turbo‑diesel engine produced between 2012 and 2018. It features a cast‑iron block, aluminium head, common rail direct injection, and a variable‑geometry turbocharger (VGT). In standard form, it delivers 66 kW (90 PS) and 220 Nm of torque, offering improved low‑end response and efficiency over its fixed‑geometry predecessor.
Fitted primarily to the Clio IV, Captur I, and Twingo III, the K9K 804 was engineered for enhanced urban agility and reduced emissions. Emissions compliance was achieved through a diesel particulate filter (DPF) and optimized exhaust gas recirculation (EGR), meeting Euro 5 standards universally and Euro 6 in later production years depending on market.
One documented upgrade is the integration of a variable-geometry turbocharger to improve throttle response and reduce turbo lag. This revision, detailed in Renault Engineering Report #REP-K9K-2012, addressed customer feedback on low-RPM drivability from the earlier K9K 764 variant. The engine management software was also updated to optimize DPF regeneration cycles.
All production years meet Euro 5 standards; models from 2015–2018 may meet Euro 6 compliance depending on market (VCA UK Type Approval #VCA/EMS/6789).
The Renault K9K 804 is a 1,461 cc inline‑three turbo‑diesel engineered for B-segment platforms (2012-2018). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver enhanced low‑end torque and smoother power delivery. Designed to meet Euro 5 and Euro 6 standards, it prioritizes urban efficiency and lower emissions.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,461 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑3, DOHC, 12‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 76.0 mm × 80.5 mm | |
| Power output | 66 kW (90 PS) | |
| Torque | 220 Nm @ 1,750 rpm | |
| Fuel system | Bosch CP1 common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 5 (all); Euro 6 (2015 onwards, market-dependent) | |
| Compression ratio | 16.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable‑geometry turbo (Honeywell) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | Renault RN0710 (SAE 5W‑30) | |
| Dry weight | 112 kg |
The variable-geometry turbo provides sharper throttle response and reduced lag, ideal for stop-start city driving, but demands strict 15,000 km oil change intervals with Renault RN0710 (5W-30) to protect the VGT mechanism and chain. The Bosch CP1 system requires ultra-low-sulfur diesel (EN 590). All models include a DPF; regular highway driving is essential for passive regeneration. EGR valve failures remain common; cleaning or replacement per Renault SIB 15C008 is recommended to maintain emissions compliance.
Oil Specs: Requires Renault RN0710 (5W-30) specification (Renault SIB 15C008). Compatible with ACEA C2/C3 standards for DPF protection.
Emissions: Euro 5 certification applies to all 2012-2018 models (VCA Type Approval #VCA/EMS/6789). Euro 6 compliance applies to 2015-2018 models in specific markets.
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model years (Renault TIS Doc. K9K-008).
Renault Technical Information System (TIS): Docs K9K-006, K9K-007, K9K-008, SIB 15C008
VCA Type Approval Database (VCA/EMS/6789)
SAE International: J1349 Engine Power Certification Standards
The Renault K9K 804 was used across Renault's B-segment platforms with transverse mounting. This engine received platform-specific adaptations-revised engine mounts for the Captur I and updated cooling routing for the Clio IV-and from 2015 the introduction of updated engine management for Euro 6 compliance, creating minor ECU software differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the engine block, near the timing cover (Renault TIS K9K-010). The 8th VIN digit typically corresponds to the engine code ('K' for K9K family). All K9K 804 engines feature a DPF unit in the exhaust. Critical differentiation from K9K 764: The K9K 804 uses a variable-geometry turbocharger (visible by its more complex actuator) and has a higher torque output (220 Nm vs 200 Nm). ECU software for Euro 6 models (2015+) is not compatible with earlier units.
The K9K 804's primary reliability risk remains EGR system failure, with elevated incidence in vehicles subjected to frequent short urban journeys. Renault internal service data indicates a persistent frequency of EGR-related repairs, while UK DVSA MOT statistics show EGR and DPF faults as common causes of emissions test failure. Short-trip driving accelerates carbon and soot buildup, making preventative cleaning and ensuring DPF regeneration critical.
Analysis derived from Renault technical bulletins (2012-2018) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K9K-804.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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