The Dacia K4M 704 is a 1,598 cc, inline — four, naturally aspirated petrol engine produced between 2005 and 2012. It belongs to the Renault — Nissan K4M family, designed for durability and cost — effective ownership. Featuring a cast — iron block, aluminium head, and multi — point fuel injection (MPi), it delivers 81 kW (110 PS) and 148 Nm of torque. Its DOHC 16 — valve configuration enables higher — revving performance and improved breathing over 8 — valve variants.
Fitted to mo…
Production years 2005–2008 meet Euro 4 standards; 2009–2012 models comply with Euro 5 .
The Dacia K4M 704 is a 1,598 cc inline-four petrol engine engineered for compact and utility models (2005–2012). It combines multi-point fuel injection with a robust cast-iron block and DOHC 16-valve head, delivering responsive performance. Designed to meet Euro 5 standards, it balances reliability with improved emissions and efficiency.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol (Unleaded, 95 RON) | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 78.0 mm × 83.6 mm | |
Power output | 81 kW (110 PS) @ 5,750 rpm | |
Torque | 148 Nm @ 3,750 rpm | |
Fuel system | Multi-point fuel injection (MPi) | |
Emissions standard | Euro 4 (2005–2008); Euro 5 (2009–2012) | |
Compression ratio | 10.6:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing belt (renew every 120,000 km) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 120 kg |
The Dacia K4M 704 was used across Dacia's Logan, Sandero, and Symbol platforms with transverse mounting and shared with Renault in European applications. This engine received platform-specific adaptations-shorter intake manifolds in the Sandero and revised engine mounts in the Logan-and from 2007 the facelifted Logan I adopted a revised timing belt tensioner to reduce premature wear, creating service part differences. All adaptations are documented in OEM technical bulletins.
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The K4M 704's primary reliability risk is timing belt failure in neglected engines, with elevated incidence in vehicles with incomplete service history. Renault field reports from 2010 indicated over 20% of high-mileage units suffered belt-related damage, while VCA MOT data links misfires and no-start conditions to failed timing systems. Extended oil intervals and high ambient temperatures increase belt degradation, making proactive replacement critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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Yes, the K4M 704 is fundamentally reliable with proper maintenance. Its DOHC 16-valve design and robust cast-iron block contribute to longevity. The main concern is timing belt neglect due to its interference nature. Post-2007 engines have improved tensioner durability. Using quality oil and petrol, and adhering to service intervals—especially timing belt replacement—ensures trouble-free operation beyond 200,000 km.
The most common issues are timing belt failure if not replaced on schedule, coolant leaks from the thermostat housing, ignition coil pack failure, and intake manifold flap malfunctions. These are documented in Renault service bulletins and field reports, with clear OEM repair procedures available. Proactive maintenance significantly reduces failure risk.
The K4M 704 1.6L 110 PS engine was used in the Dacia Logan (2005–2012), Sandero (2008–2012), and Symbol (2005–2012). It was also fitted to the Renault Clio II in select markets. All applications meet Euro 5 from 2009 onward, with VIN 8th digit 'G' identifying this engine variant.
Limited tuning potential exists. ECU remaps offer modest gains (~5–10 kW) but provide little benefit due to the engine's naturally aspirated nature. Performance upgrades like intake, exhaust, or camshafts are rare and offer minimal returns. The engine is designed for economy and reliability, not high output, so significant tuning is not cost-effective or widely supported.
In combined driving, expect 6.9–7.9 L/100km (36–41 mpg UK). The Logan and Symbol typically achieve lower consumption in highway use (~6.1 L/100km), while the heavier Sandero may use 8.1 L/100km in city driving. Real-world economy depends on driving style, but the engine is efficient for its class and aspiration type.
Yes, the K4M 704 is an interference engine. If the timing belt fails, the pistons can strike the open valves, resulting in severe internal damage. This makes strict adherence to the 120,000 km replacement interval essential. Any signs of belt wear or noise should prompt immediate inspection.
Use SAE 5W-30 or 10W-40 engine oil meeting ACEA A1/B1 or A5/B5 specifications. Fully synthetic oil is recommended for extended intervals and better protection. Change oil every 15,000 km or annually. Proper oil selection helps reduce wear and supports longevity, especially 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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