NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology. NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.

ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

The NGK Mercedes-Benz SLK230 oxygen sensor (Part Number 25617) is engineered to ensure optimal engine performance and fuel efficiency for your vehicle. Designed specifically for models including the 2000 to 2004 Mercedes-Benz SLK series, this direct-fit sensor seamlessly replaces OEM units to provide precise air-fuel ratio feedback. Accurate oxygen sensing is essential for maintaining emissions compliance and engine reliability, making this sensor a vital component for your vehicle’s diagnostic system.
Built with an advanced ceramic sensor element, the NGK sensor features a 3-stage contaminant-resistant plasma jet and deposit trap overcoat that guards against element poisoning. This innovative design enhances durability and resistance to failure, ensuring long-lasting performance under demanding driving conditions. The sensor's robust construction helps maintain consistent feedback to the engine control unit (ECU), which optimizes combustion, improves throttle response, and reduces fuel consumption.
Easy to install as a direct replacement, the NGK Mercedes-Benz SLK230 oxygen sensor adheres to OE specifications, providing a reliable solution for emissions testing and vehicle diagnostics. It is suitable for use in various Mercedes-Benz SLK models from 2000 to 2004, making it a versatile choice for maintenance or repairs. This sensor does not require additional certifications such as CARB approval but does adhere to Prop 65 requirements, ensuring safety and environmental compliance. Trust NGK's expertise in sensor technology to deliver high-quality, OE-matching components that support your vehicle’s performance and emissions standards.

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