The Dacia K4M 690 is a 1,598 cc, inline-four petrol engine produced between 2004 and 2012. It belongs to the Renault-Nissan M-type engine family, sharing architecture with the widely used K4M series. Featuring multi-point fuel injection (MPi), DOHC valvetrain, and 16-valve configuration, it delivers 68 kW (93 PS) at 5,500 rpm and 138 Nm of torque at 3,000 rpm. Its design prioritises durability and ease of maintenance for budget-oriented applications.
Fitted to models such as the Logan, Sandero, and Symbol, the K4M 690 was engineered for reliable urban and regional transportation. It prioritises low-end torque and predictable drivability over high-speed performance, making it well-suited for city driving and light-duty use. Emissions compliance was achieved through a three-way catalytic converter and oxygen sensor feedback, meeting Euro 4 standards throughout its production run.
One documented concern is premature wear of the timing belt tensioner, particularly in high-temperature environments or under extended service intervals. This issue, referenced in Renault Service Bulletin TDB/ENG/2009/04, can lead to belt slippage or fracture if not addressed. From 2008, revised tensioner materials and updated inspection intervals were introduced across the K4M engine line to improve durability.
All production years 2004–2012 meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/6789).
The Dacia K4M 690 is a 1,598 cc inline-four petrol engine engineered for compact and entry-level vehicles (2004–2012). It combines multi-point injection with a DOHC 16-valve layout to deliver dependable low-RPM torque and low ownership costs. Designed to meet Euro 4 standards, it balances simplicity, fuel economy, and ease of maintenance for cost-conscious drivers.
| 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 | 68 kW (93 PS) @ 5,500 rpm | |
| Torque | 138 Nm @ 3,000 rpm | |
| Fuel system | Multi-point fuel injection (MPi) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.6:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (interval: 120,000 km or 6 years) | |
| Oil type | SAE 5W-30 (ACEA A1/B1 or A5/B5) | |
| Dry weight | 108 kg |
The naturally aspirated design provides predictable daily drivability but limited high-speed performance, making it best suited for city and suburban use. Adherence to the 120,000 km or 6-year timing belt service interval is critical to prevent catastrophic engine damage. Use of SAE 5W-30 oil meeting ACEA A5/B5 specifications ensures optimal valve train and piston ring lubrication. The MPi system is less sensitive to lower fuel quality than direct injection but still performs best with 95 RON or higher. Post-2008 models benefit from revised tensioner design; pre-2008 units should be inspected proactively. The three-way catalytic converter requires regular full-load operation to prevent clogging and maintain efficiency.
Oil Specs: Requires SAE 5W-30 meeting ACEA A1/B1 or A5/B5 (Renault SIB OIL/ENG/2007/02). Compatible with Renault RN0700 specification.
Emissions: Euro 4 certification applies to all K4M 690 production years (2004–2012) (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under ECE R85 standards. Output consistent across all markets with no performance variants.
Renault Technical Information System (TIS): Docs E16-6900, F08-160, TDB/ENG/2009/04
VCA Type Approval Database (VCA/EMS/6789)
European Regulation (EC) No 715/2007
The Dacia K4M 690 was used across Dacia's Logan/Sandero platforms with transverse mounting and shared architecture within the Renault-Nissan-Mitsubishi Alliance. This engine received platform-specific adaptations-shorter intake manifolds in the Sandero and revised exhaust routing in the Symbol-and from 2008 the facelifted Logan models adopted updated engine management software, creating minor calibration differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block, near the transmission bellhousing (Renault TIS E16-6980). The 8th VIN digit indicates engine type ('F' for 1.6L MPI K4M). Pre-2008 models have silver valve covers with ribbed finish; post-2008 units use black valve covers with embossed Dacia logo. Critical differentiation from K4J: K4M 690 features DOHC 16-valve layout while K4J uses SOHC 8-valve. Service parts require model-year verification—timing belts for pre-2008 engines are not interchangeable with post-facelift units due to tensioner redesign (Renault SIB TDB/ENG/2009/04).
The K4M 690's primary reliability risk is timing belt failure due to tensioner wear, with elevated incidence in hot climates and extended-service vehicles. Renault internal field reports from 2010 indicated a significant number of pre-2008 engines required premature belt replacement before 100,000 km, while VCA MOT data shows increased engine seizure incidents linked to missed services. High ambient temperatures and infrequent full-throttle operation increase carbon buildup and thermal stress, making adherence to service intervals critical.
Analysis derived from Renault technical bulletins (2004-2012) and UK DVSA failure statistics (2008-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DACIA K4M690.
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