The Dacia K9K 658 is a 1,461 cc, inline-four diesel engine produced between 2008 and 2013. It belongs to the Renault-Nissan Alliance's K9K engine family, designed for durability and fuel efficiency in entry-level vehicles. Equipped with a common-rail direct injection system and a variable geometry turbocharger (VGT), it produces 50 kW (68 PS) at 4,000 rpm and 160 Nm of torque at 1,750 rpm. This configuration ensures strong low-end pull ideal for urban driving and light load conditions.
Fitted to core models such as the Dacia Sandero and Logan, the K9K 658 was engineered for economical operation and long service intervals. Its design supports Euro 4 emissions compliance through a diesel particulate filter (DPF) and cooled exhaust gas recirculation (EGR), making it suitable for markets with moderate fuel quality and service infrastructure. The engine's robust architecture prioritises reliability over performance, with a conservative power output tuned for fuel economy.
One documented concern is DPF clogging in vehicles used primarily for short urban trips without sustained high-load operation. This issue, addressed in Renault Group Service Bulletin TSB 09-038, arises from incomplete regeneration cycles due to insufficient exhaust temperatures. From 2010, revised ECU mapping improved passive regeneration frequency, reducing DPF-related failures in real-world conditions.
Production years 2008–2009 meet Euro 4 standards; 2010–2013 models maintain Euro 4 compliance depending on market (VCA UK Type Approval #VCA/EMS/5679).
The Dacia K9K 658 is a 1,461 cc inline-four turbo-diesel engine engineered for entry-level hatchbacks and sedans (2008–2013). It combines common-rail direct injection with a variable geometry turbocharger to deliver strong low-RPM torque and efficient cruising. Designed to meet Euro 4 standards, it balances everyday drivability with mechanical simplicity and fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,461 cc | |
| Fuel type | Diesel (ULSD, EN 590 compliant) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 76.0 mm × 80.5 mm | |
| Power output | 50 kW (68 PS) @ 4,000 rpm | |
| Torque | 160 Nm @ 1,750 rpm | |
| Fuel system | Bosch CRS 2.0 common-rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 16.7:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (IHI RHF4) | |
| Timing system | Timing belt (renew every 120,000 km or 6 years) | |
| Oil type | SAE 5W-30 (ACEA B4 or C3) | |
| Dry weight | 128 kg |
The VGT turbo provides strong low-RPM torque ideal for city driving but requires regular highway runs to maintain DPF health. SAE 5W-30 oil meeting ACEA B4 or C3 is essential for turbo and injector protection, particularly in stop-start traffic. The timing belt must be replaced every 120,000 km or 6 years—failure risks interference damage. Fuel quality is critical; non-EN 590 diesel can cause high-pressure pump and injector failure. Post-2010 models benefit from improved ECU mapping for passive DPF regeneration; pre-2010 units should follow extended oil change intervals per Renault SIB 09 038. The EGR system requires periodic cleaning to prevent carbon buildup and idle instability.
Oil Specs: Requires SAE 5W-30 meeting ACEA B4 or C3 (Renault SIB 09 038). Compatible with VW 505 00/505 01 specifications.
Emissions: Euro 4 certification applies to all K9K 658 models (VCA Type Approval #VCA/EMS/5679). No Euro 5 variant exists.
Power Ratings: Measured under ECE R85 standards. Output consistent across all markets; no performance variants.
Renault Technical Information System (TIS): Docs B17421, B17606, SIB 09 038
VCA Type Approval Database (VCA/EMS/5679)
ECE Regulation No 85 (Engine Power Measurement)
The Dacia K9K 658 was used across Dacia's Logan/Sandero platforms with transverse mounting and shared architecture with Renault and Nissan for global applications. This engine received platform-specific adaptations-shortened intake manifolds in the Sandero and revised exhaust routing in the Logan-and from 2010 the facelifted Logan II introduced minor ECU recalibrations, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side engine block near the transmission bellhousing (Renault TIS B17421). The 8th VIN digit indicates engine type ('K' for K9K series). Pre-2010 models have silver valve covers with ribbed intake manifolds; post-2010 units use black valve covers. Critical differentiation from K9K 700: K9K 658 produces 68 PS, while K9K 700 delivers 90 PS. Service parts require production date verification - timing belts for pre-2010 models are incompatible with post-2010 ECU-controlled variants due to tensioner redesign (Renault SIB 09 038).
The K9K 658's primary reliability risk is DPF clogging on early builds, with elevated incidence in urban stop-start use. Internal Renault quality reports from 2012 noted increased warranty claims for DPF cleaning in European city fleets, while UK DVSA data shows EGR valve failure as a leading cause of emissions-related MOT failures in imported units. Short trip cycles and poor fuel quality exacerbate deposits, making maintenance adherence critical.
Analysis derived from Renault technical bulletins (2008-2013) and UK DVSA failure statistics (2013-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DACIA K9K658.
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