The Dacia K7J 710 is a 1,390 cc, inline — four petrol engine produced between 2008 and 2013. It forms part of the Renault — Nissan — Dacia shared powertrain family, designed for affordability and ease of maintenance. Featuring a single overhead camshaft (SOHC), multi — point fuel injection (MPi), and 8 — valve architecture, it delivers 59 kW (80 PS) at 5,500 rpm and 118 Nm of torque at 3,250 rpm.
Fitted to core models such as the Dacia Sandero and Logan, the K7J 710 was engineered fo…
Production years 2008–2009 meet Euro 4 standards; 2010–2013 models maintain Euro 4 compliance depending on market .
The Dacia K7J 710 is a 1,390 cc inline-four petrol engine engineered for entry-level hatchbacks and sedans (2008–2013). It combines multi-point fuel injection with a single overhead camshaft to deliver predictable performance and low running costs. Designed to meet Euro 4 standards, it balances urban drivability with mechanical simplicity.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,390 cc | |
Fuel type | Petrol (Unleaded, 95 RON min) | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 78.0 mm × 73.0 mm | |
Power output | 59 kW (80 PS) @ 5,500 rpm | |
Torque | 118 Nm @ 3,250 rpm | |
Fuel system | Multi-point fuel injection (MPi) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing belt (renew every 120,000 km or 6 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 108 kg |
The Dacia K7J 710 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 K7J 710 is generally reliable when maintained properly, but early models (2008–2009) showed increased camshaft wear in hot climates. Later revisions (post-2010) improved durability with better surface treatments. 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 camshaft wear (especially pre-2010), timing belt failure due to neglect, idle instability from throttle body carbon buildup, and coolant leaks from the thermostat housing. These are covered in Renault service bulletins and field reports from European and African markets.
The K7J 710 was used in the Dacia Logan (2008–2013) and Sandero (2008–2012), both badged as 1.4 MPI (80 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 8-valve SOHC 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 K7J 710 achieves approximately 6.5 L/100km (43 mpg UK) in the Sandero and 7.0 L/100km (40 mpg UK) in the Logan. Highway efficiency improves to ~5.8 L/100km (49 mpg UK). Real-world figures vary with load and terrain, but it remains a frugal choice for budget-conscious drivers.
Yes. The K7J 710 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 A1/B1 or A5/B5 specifications. High-quality synthetic or semi-synthetic oils are recommended, especially in hot climates. Oil changes should be performed every 15,000 km or 12 months to protect the camshaft and ensure reliable operation.
Comprehensive technical documentation and regulatory references
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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.
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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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