The Dacia K9K 796 is a 1,461 cc, inline — four turbo — diesel engine produced between 2008 and 2018. It features a common rail direct injection system, variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC), delivering 57 kW (77 PS) at 4,000 rpm and 195 Nm of torque at 1,750 rpm. This engine was developed by Renault for use in budget — oriented passenger vehicles, prioritising fuel efficiency and low — end torque for urban driving.
Fitted to models such as the D…
All models (2008–2018) comply with Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Dacia K9K 796 is a 1,461 cc inline-four turbo-diesel engine engineered for compact and leisure-oriented models (2008–2018). It combines common rail direct injection with a variable geometry turbocharger to deliver strong low-RPM torque and efficient fuel economy. Designed to meet Euro 4 emissions standards, it balances everyday drivability with environmental compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,461 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 80.5 mm | |
Power output | 57 kW (77 PS) @ 4,000 rpm | |
Torque | 195 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 (interval: 120,000 km or 6 years) | |
Oil type | SAE 5W-30 (ACEA B4 or C3) | |
Dry weight | 137 kg |
The Dacia K9K 796 was used across Dacia's Logan/Sandero platforms with transverse mounting and shared with Renault for use in utility and leisure vehicles. This engine received platform-specific adaptations-shorter intake manifolds in the Logan MCV and revised exhaust routing in the Dokker-and from 2012 the facelifted Sandero Stepway adopted updated ECU calibration and EGR valve design, creating service part incompatibility. All adaptations are documented in OEM technical bulletins.
The K9K 796's primary reliability risk is DPF clogging, with elevated incidence in urban and short-trip usage. Renault internal field reports from 2014 indicated a significant number of pre-2012 engines requiring forced regeneration or DPF cleaning before 100,000 km, while VCA MOT data shows emissions-related failures are common in non-highway-driven units. Short journeys and poor-quality diesel increase soot accumulation, making proactive DPF maintenance critical.
Analysis derived from Renault technical bulletins (2008-2015) and UK DVSA failure statistics (2012-2020). Repair procedures should follow manufacturer guidelines.
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The K9K 796 is mechanically robust and fuel-efficient when maintained properly. However, pre-2012 models are prone to DPF clogging if used primarily for short urban trips. Later revisions show improved EGR and DPF management. Regular oil changes, EGR cleaning, and periodic highway runs to enable DPF regeneration are essential for long-term reliability.
The most frequent issues include DPF clogging, EGR valve coking, turbo actuator failure, and timing belt tensioner wear. These are documented in Renault service bulletins and field reports, particularly affecting pre-2012 models in urban environments or with poor maintenance. Using low-quality diesel exacerbates these issues.
The K9K 796 was used in the Dacia Logan MCV (2008–2012), Sandero (2010–2018), and Dokker (2012–2018) in 1.5 dCi form. It was also shared with Renault for use in the Kangoo (2008–2013). All models are front-wheel drive with transverse engine mounting and Euro 4 emissions compliance.
The K9K 796 has limited tuning potential due to its modest turbo and ECU limitations. ECU remapping can yield +15–20 PS safely, but significant gains require turbo and intercooler upgrades. Most owners prioritize fuel economy and reliability over performance, and tuning may void DPF-related compliance.
In combined driving, the K9K 796 achieves approximately 4.8–5.3 L/100km (59–53 mpg UK). City driving may see 6.0 L/100km (47 mpg), while highway cruising can reach 4.5 L/100km (63 mpg). Real-world consumption in the Sandero 1.5 dCi averages around 5.1 L/100km with mixed use.
Yes. The K9K 796 is an interference engine, meaning that if the timing belt fails, the pistons can strike the open valves, causing bent valves or damaged pistons. This makes strict adherence to the 120,000 km or 6-year timing belt replacement interval absolutely critical to avoid catastrophic engine damage.
The engine requires SAE 5W-30 engine oil meeting ACEA C3 or B4 specifications. Renault recommends using oils compatible with API CK-4/SN standards. Oil should be changed every 15,000 km or annually to maintain DPF and EGR system cleanliness and ensure proper turbo and chain lubrication.
Comprehensive technical documentation and regulatory references
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DACIA Official Site
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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
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