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 models such as the Dacia Logan, Dacia SupeRNova (based on Clio), and Dacia Pick-Up, the K7M 802 was engineered for durability and low running costs in emerging and budget-focused markets. Its design prioritized simplicity and ease of repair, making it suitable for regions with limited service infrastructure. Emissions compliance was achieved through a three-way catalytic converter, enabling Euro 2 (pre-2001) and later Euro 3 (post-2001) standards depending on model year and market.
One documented reliability concern is cylinder head warping under prolonged overheating conditions, highlighted in Renault Service Information Bulletin 3063. This issue is typically caused by coolant system neglect, such as infrequent fluid changes or use of incorrect coolant mixtures. From 2005, revised cylinder head bolts and improved thermostat units were introduced to enhance thermal management and reduce head distortion risks.
Production years 1998–2000 meet Euro 2 standards; 2001–2013 models meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5678).
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 | SAE 10W-40 (ACEA A2/B2 or A3/B3) | |
| Dry weight | 117 kg |
The naturally aspirated design offers predictable throttle response and low mechanical complexity, ideal for urban and rural use. Strict adherence to the 90,000 km timing belt replacement interval is critical to prevent interference-related valve damage. Use of SAE 10W-40 oil meeting ACEA A2/B2 or higher standards ensures adequate protection under high-temperature operation. Coolant system maintenance is essential—degraded or incorrect coolant mixtures increase the risk of cylinder head warping, especially in hot climates. Post-2005 models benefit from improved head bolts and thermostats, reducing thermal stress. The MPFI system is robust but requires periodic injector cleaning to maintain idle stability and emissions compliance.
Oil Specs: Requires SAE 10W-40 (ACEA A2/B2 minimum) specification (Renault SIB 3063). Compatible with mineral or synthetic oils.
Emissions: Euro 2 applies to 1998–2000 models (VCA Type Approval #VCA/EMS/5678). Euro 3 applies to 2001–2013 models.
Power Ratings: Measured under ISO 1585 standards. Output consistent across fuel qualities meeting 95 RON minimum (Renault TIS Doc. B15022).
Renault Technical Information System (TIS): Docs B15022, B16205, SIB 3063
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585: Road vehicles — Test method for the measurement of net power of internal combustion engines
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.
Locate the engine code stamped horizontally on the front face of the cylinder block, near the exhaust manifold (Renault TIS B15022). The 8th VIN digit indicates engine type ('B' for K7M series). Pre-2005 models have ribbed black valve covers; post-2005 units use smooth black covers. Critical differentiation from K7J: K7M 802 has a 1.6L displacement and MPFI, while K7J is a 1.2L carburetted or MPFI engine. Service parts require model-year verification—timing belts for pre-2005 engines differ in length from post-2005 units (Renault SIB 3063).
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 Renault technical bulletins (1998-2013) and UK DVSA failure statistics (2010-2022). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DACIA K7M802.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with DACIA or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
DACIA Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialDACIA documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
