The Dacia K9K 804 is a 1,461 cc, inline — four, turbocharged diesel engine produced between 2005 and 2017. Developed in collaboration with Renault, it belongs to the K9K engine family and features a common rail direct injection system and variable geometry turbocharger (VGT). In standard tune it delivers 50 kW (68 PS), with torque output of 160 Nm, offering improved fuel efficiency and low — end pulling power ideal for urban and mixed driving conditions.
Fitted to core Dacia…
Production years 2005–2009 meet Euro 4 standards; 2010–2017 models comply with Euro 5 depending on market .
The Dacia K9K 804 is a 1,461 cc inline-four turbo-diesel engine engineered for entry-level and fleet applications (2005–2017). It combines common rail direct injection with a variable geometry turbocharger to deliver responsive low-end torque and improved fuel economy. Designed to meet Euro 4 and Euro 5 emissions standards, it balances practicality with cost-effective ownership in European and emerging markets.
| 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 @ 1,900 rpm | |
Fuel system | Common rail direct injection (up to 1,600 bar) | |
Emissions standard | Euro 4 (2005–2009); Euro 5 (2010–2017) | |
Compression ratio | 16.7:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable geometry turbo (IHI RHF3) | |
Timing system | Timing belt (interval: 120,000 km or 6 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 128 kg |
The Dacia K9K 804 was used across Dacia's Logan/Sandero platforms with transverse mounting and shared with Renault for use in Eastern European markets. This engine received platform-specific adaptations-shorter intake manifolds in the Logan MCV and revised ECU tuning in the Duster-and from 2010 the facelifted Sandero II adopted the K9K Evolution with improved DPF regeneration, creating 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 804 is generally reliable when maintained, but EGR and DPF issues are common in urban-driven vehicles. Regular highway runs help maintain DPF health, and adherence to the 120,000 km timing belt interval is essential. Engines with full service history and genuine parts typically exceed 200,000 km. Using quality diesel and correct oil enhances longevity.
Key issues include carbon buildup in the EGR and intake, DPF clogging from short trips, turbo actuator sticking, and timing belt failure due to neglect. These are documented in Dacia service bulletins. Regular maintenance and proper driving patterns prevent most failures.
The K9K 804 1.5L dCi was used in the Logan (2005–2012), Sandero (2008–2017), and Duster (2010–2017). It also powered the Renault Clio in select markets. All variants are badged as 1.5 dCi. Euro 5 versions from 2010 onward are most common in Western Europe.
Limited tuning potential exists. ECU remaps yield modest gains (~10–15 kW) due to turbo and fuel system constraints. Performance upgrades like exhaust or intercooler are rare and often cost-ineffective. The engine is best kept stock for reliability and economy.
In a Sandero or Duster, expect 4.8–5.4 L/100km (59–52 mpg UK) in mixed driving. Highway consumption drops to ~4.2 L/100km (~67 mpg UK). Real-world figures depend on load and terrain, but the K9K 804 offers excellent economy for a small diesel engine.
Yes. The K9K 804 is an interference engine. If the timing belt fails, pistons can contact valves, causing bent valves or cylinder head damage. Immediate attention to belt condition and replacement intervals is critical to avoid costly repairs.
Dacia recommends 5W-30 or 5W-40 engine oil meeting API CJ-4/SL specification. Use a quality multi-grade oil suitable for turbo diesel engines and change every 15,000 km or annually. Proper oil ensures turbo and EGR system longevity.
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.
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