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 lo…

Production years 2008–2009 meet Euro 4 standards; 2010–2013 models maintain Euro 4 compliance depending on market .
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 | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 128 kg |
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.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The K9K 658 is generally reliable when maintained properly, but early models (2008–2009) showed increased DPF clogging in urban environments. Later revisions (post-2010) improved ECU mapping for passive regeneration. Regular oil changes (every 15,000 km) and strict adherence to the 120,000 km timing belt interval are essential for longevity.
The most documented issues are DPF clogging (especially pre-2010), timing belt failure due to neglect, EGR valve carbon buildup, and turbo actuator sticking. These are covered in Renault service bulletins and field reports from European and African markets.
The K9K 658 was used in the Dacia Logan (2008–2013) and Sandero (2008–2012), both badged as 1.5 dCi (68 PS). It was also shared with the Renault Clio III and Nissan Micra K13. All models meet Euro 4 emissions standards and use transverse front-wheel-drive layouts.
Limited tuning potential exists. ECU remaps offer minor gains (~5–10%) but are constrained by the 16-valve DOHC design. Aftermarket options include performance air filters and exhausts, but significant power increases require internal modifications. Most owners prioritise reliability over performance upgrades.
In combined driving, the K9K 658 achieves approximately 4.8 L/100km (59 mpg UK) in the Sandero and 5.2 L/100km (54 mpg UK) in the Logan. Highway efficiency improves to ~4.2 L/100km (67 mpg UK). Real-world figures vary with load and terrain, but it remains a frugal choice for budget-conscious drivers.
Yes. The K9K 658 is an interference engine. If the timing belt breaks or jumps, the pistons can collide with open valves, causing severe internal damage. This makes strict adherence to the 120,000 km replacement interval absolutely critical to avoid costly repairs.
The engine requires SAE 5W-30 oil meeting ACEA B4 or C3 specifications. High-quality synthetic or semi-synthetic oils are recommended, especially in stop-start conditions. Oil changes should be performed every 15,000 km or 12 months to protect the turbocharger and ensure reliable DPF operation.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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VCA Certification Portal
Type-approval guidance and documentation.
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