The Dacia K7M 802 is a 1,598 cc, inline — four, naturally aspirated petrol engine produced between 1998 and 2013. It was developed by Renault and used across Dacia's rebadged and locally produced vehicle range. Featuring a single overhead camshaft (SOHC), 8 — valve design, and multi — point fuel injection (MPFI), it delivered 59 kW (80 PS) at 5,500 rpm and 134 Nm of torque at 3,000 rpm, providing reliable, fuel — efficient performance for entry — level vehicles.
Fitted to model…
Production years 1998–2000 meet Euro 2 standards; 2001–2013 models meet Euro 3 standards .
The Dacia K7M 802 is a 1,598 cc inline-four, naturally aspirated petrol engine engineered for budget passenger and utility vehicles (1998–2013). It combines multi-point fuel injection with SOHC valvetrain technology to deliver dependable daily performance. Designed to meet Euro 2 and Euro 3 emissions standards, it prioritizes mechanical simplicity, ease of maintenance, and cost-effective operation.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol (Unleaded, 95 RON) | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 78.0 mm × 83.6 mm | |
Power output | 59 kW (80 PS) @ 5,500 rpm | |
Torque | 134 Nm @ 3,000 rpm | |
Fuel system | Multi-point fuel injection (MPFI) | |
Emissions standard | Euro 2 (pre-2001); Euro 3 (2001–2013) | |
Compression ratio | 9.7:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing belt (renew every 90,000 km) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 117 kg |
The Dacia K7M 802 was used across Dacia's Logan/Supernova platforms with longitudinal mounting and shared with Renault for regional applications. This engine received platform-specific adaptations-shorter accessory belts in the Logan and revised exhaust manifolds in the Pick-Up-and from 2005, updated cooling components improved thermal reliability. All adaptations are documented in OEM technical bulletins.
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The K7M 802's primary reliability risk is cylinder head warping due to overheating, with elevated incidence in hot climates and neglected cooling systems. Renault internal field reports from 2008 indicated a significant share of pre-2005 engines required head rework before 150,000 km, while VCA MOT data links a notable portion of emissions failures to degraded catalytic converters in high-mileage units. Infrequent coolant changes and extended timing belt intervals increase mechanical and thermal stress, making scheduled maintenance critical.
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
Yes, the K7M 802 is generally reliable when maintained properly. Its simple SOHC design and proven MPFI system contribute to longevity. However, pre-2005 models are prone to cylinder head warping if overheated. Regular coolant changes, timely timing belt replacement (every 90,000 km), and use of correct oil significantly improve long-term durability.
The most common issues are cylinder head warping due to overheating, timing belt failure from missed service intervals, idle instability from carbon buildup, and exhaust manifold cracking. These are documented in Renault service bulletins and are largely preventable with proper maintenance and use of OEM-specified parts.
The K7M 802 was used in the Dacia Logan (2005–2013), Dacia SupeRNova (1998–2006), and Dacia Pick-Up (2002–2013). It was also used in the Renault Clio II (1998–2001) as part of the shared platform strategy. All models feature the 1.6L 8V petrol variant.
Limited tuning potential exists. Basic improvements include performance air filters, exhaust upgrades, and ECU remapping, potentially gaining +10–15 PS. However, the SOHC 8-valve design and modest compression limit gains. Forced induction is not feasible without major modifications. Most owners prioritize reliability over performance.
Fuel economy is moderate. In a Dacia Logan, expect ~8.5 L/100km in city driving and ~5.8 L/100km on highways, averaging 6.8–7.5 L/100km (42–48 mpg UK) in mixed conditions. Driving style and vehicle condition significantly affect real-world consumption.
Yes, the K7M 802 is an interference engine. If the timing belt fails, the pistons can strike the open valves, causing severe internal damage. This makes strict adherence to the 90,000 km replacement interval essential. Always replace the belt, tensioner, and associated components together.
The engine requires SAE 10W-40 engine oil meeting ACEA A2/B2 or A3/B3 specifications. Mineral or synthetic oils are acceptable. Change oil every 15,000 km or annually. Using the correct oil ensures proper lubrication, especially under high-temperature operation common in hot climates.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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