The Dacia K7M is a 1,598 cc, inline — four, naturally aspirated petrol engine produced between 1996 and 2012. It was developed in collaboration with Renault and based on the Renault Energy engine family. Featuring a single overhead camshaft (SOHC) and multi — point fuel injection (MPFI), it delivers 63–68 kW (86–93 PS) and 128–134 Nm of torque. Its simple design prioritises durability and ease of maintenance for budget — oriented applications.
Fitted to core Dacia models i…
Production years 1996–2005 meet Euro 2–3 standards; 2006–2012 models comply with Euro 4 depending on market .
The Dacia K7M is a 1,598 cc inline-four petrol engine engineered for entry-level and fleet vehicles (1996–2012). It combines SOHC valvetrain architecture with multi-point fuel injection to deliver predictable performance and low running costs. Designed to meet Euro 3 and Euro 4 emissions standards, it balances everyday drivability with economy in emerging and European markets.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol (Unleaded, 95 RON min) | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 78.0 mm × 83.6 mm | |
Power output | 63–68 kW (86–93 PS) @ 5,500 rpm | |
Torque | 128–134 Nm @ 3,000 rpm | |
Fuel system | Multi-point fuel injection (MPFI) | |
Emissions standard | Euro 3 (2001–2005); Euro 4 (2006–2012) | |
Compression ratio | 9.7:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing belt (interval: 120,000 km or 6 years) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The Dacia K7M 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 Sandero Stepway-and from 2010 the facelifted Logan II adopted the K7M Evolution with improved emissions control, 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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The K7M is generally robust when maintained, but timing belt neglect is a major risk. Pre-2008 models are more prone to tensioner failure, so adherence to the 120,000 km or 6-year replacement interval is essential. Engines with full service history and genuine parts typically exceed 200,000 km. Using correct oil and addressing minor leaks promptly enhances longevity.
Key issues include timing belt tensioner wear (leading to belt failure), idle instability from throttle body carbon buildup, coolant leaks from the thermostat housing, and exhaust manifold cracking. These are documented in Dacia service bulletins and field reports. Regular maintenance prevents most failures.
The K7M 1.6L was used in the Logan (2005–2012), Sandero (2008–2012), and early Dokker (2011–2012). It also powered the Renault Symbol in select markets. All variants are badged as 1.6 16V. Euro 4 versions from 2006 onward are most common in Western Europe.
Limited tuning potential exists. ECU remaps yield modest gains (~5–10 kW) due to natural aspiration and SOHC design. Performance upgrades like exhaust, intake, or camshafts are rare and often cost-ineffective. The engine is best kept stock for reliability and economy.
In a Logan or Sandero, expect 7.0–7.8 L/100km (36–33 mpg UK) in mixed driving. Highway consumption drops to ~5.8 L/100km (~49 mpg UK). Real-world figures depend on load and terrain, but the K7M offers solid economy for a naturally aspirated engine.
Yes. The K7M 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 10W-40 engine oil meeting API SL/CF specification. Use a quality multi-grade oil suitable for petrol engines and change every 15,000 km or annually. Proper oil ensures valve train lubrication and reduces sludge buildup.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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