The Renault K9K 770 is a 1,461 cc, inline‑four turbo‑diesel engine produced between 2008 and 2015. It features a common rail direct injection system, a fixed geometry turbocharger, and dual overhead camshafts (DOHC). In its standard 86 PS configuration, it delivers 200 Nm of torque, with the variable geometry turbo (VGT) variant offering 110 PS. The DOHC layout enables precise valve control for improved efficiency and emissions.
Fitted to models such as the Clio III, Mégane III, and Kangoo, the K9K 770 was engineered for urban efficiency and low‑end responsiveness. Drivers benefit from strong pulling power at low revs, making it ideal for city driving and light load carrying. Emissions compliance was achieved through exhaust gas recirculation (EGR) and, on later models, a diesel particulate filter (DPF), meeting Euro 4 and Euro 5 standards.
A documented reliability concern involves EGR valve and cooler clogging, particularly in vehicles subjected to short urban journeys, as noted in Renault Technical Note MEG‑08‑012. This is often caused by incomplete regeneration cycles leading to carbon buildup. From 2011, Renault introduced revised EGR components and software calibrations to mitigate the issue.
Production years 2008–2010 meet Euro 4 standards; 2011–2015 models meet Euro 5 compliance (VCA UK Type Approval #VCA/EMS/5678).
The Renault K9K 770 is a 1,461 cc inline‑four turbo‑diesel engineered for supermini and compact MPV applications (2008-2015). It combines common‑rail direct injection with a fixed‑geometry or variable‑geometry turbocharger to deliver strong low‑end torque and frugal fuel consumption. Designed to meet Euro 4 and Euro 5 standards, it balances urban agility with long‑distance economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,461 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 8‑valve | |
| Aspiration | Turbocharged (Fixed or VGT) | |
| Bore × stroke | 76.0 mm × 80.5 mm | |
| Power output | 63–81 kW (86–110 PS) | |
| Torque | 200 Nm @ 1,900 rpm (86 PS) / 240 Nm @ 1,750 rpm (110 PS) | |
| Fuel system | Denso HP3 common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 (2008–2010); Euro 5 (2011–2015) | |
| Compression ratio | 15.8:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed geometry (86 PS) or Variable geometry (110 PS) | |
| Timing system | Chain‑driven | |
| Oil type | Renault RN0700 / RN0710 (SAE 5W‑30) | |
| Dry weight | 117 kg |
The fixed-geometry turbo provides predictable, lag-free torque ideal for stop-start traffic but requires diligent maintenance of the EGR system to prevent clogging and DPF issues. Renault RN0710 (5W-30) oil is critical for its low-SAPS formulation, protecting the DPF and turbocharger. Short trips should be minimized to allow for complete DPF regeneration cycles. The timing chain is generally robust but relies on clean oil; extended intervals can lead to tensioner wear. EGR coolers are prone to internal leaks; symptoms include coolant loss and white exhaust smoke, requiring replacement per Renault Technical Note MEG-08-012.
Oil Specs: Requires Renault RN0700 or RN0710 specification (Renault Service Manual 1461D). RN0710 is mandatory for DPF-equipped vehicles.
Emissions: Euro 4 certification applies to 2008-2010 models (VCA Type Approval #VCA/EMS/5678). Euro 5 compliance is standard for 2011-2015 models.
Power Ratings: Measured under SAE J1349 standards. 110 PS output requires VGT and specific ECU mapping (Renault EPC Ref. K9K-770-01).
Renault Technical Information System: Docs MEG-08-012, Service Manual 1461D
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Renault K9K 770 was used across Renault's B/C platforms with transverse mounting. This engine received platform-specific adaptations-reinforced mounts in the Kangoo for commercial use and revised air intakes in the Mégane-and from 2011 the facelifted Clio models adopted revised EGR hardware and software, creating minor parts differences. 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 A12345). The 8th VIN digit typically corresponds to the engine code (e.g., '7' for K9K 770). The 86 PS variant uses a black plastic inlet manifold with a fixed turbo; the 110 PS variant has a metallic inlet pipe and a variable geometry turbo. Critical differentiation: Pre-2011 models have a simpler EGR valve; post-2011 units feature a more complex valve with integrated cooler and require specific diagnostic procedures for adaptation (Renault Technical Note MEG-08-012).
The K9K 770's primary reliability risk is EGR system failure, with elevated incidence in vehicles used for short urban journeys. Renault internal reports indicated a high rate of EGR-related faults in pre-2011 builds, while UK DVSA MOT data shows DPF issues are a leading cause of failure for diesel vehicles of this era. Incomplete regeneration cycles make proactive maintenance and driving habit adjustments critical.
Analysis derived from Renault technical bulletins (2008-2015) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT K9K-770.
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