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 C230 oxygen sensor, part number 25616, is engineered for precise engine management and optimal vehicle performance. Designed to fit models from 2002 to 2005, this direct fit sensor ensures compatibility with a range of Mercedes-Benz vehicles including the C230, CLK320, CLK430, CLK500, and C240. As an OEM-quality component, it plays a vital role in maintaining the air-fuel ratio by providing accurate closed-loop feedback to the engine control unit (ECU). This performance contributes to improved fuel efficiency, smoother engine operation, and reduced emissions, aligning with environmental standards and vehicle performance expectations.
The sensor features an advanced ceramic element with a three-stage contaminant-resistant plasma jet and deposit trap overcoat, which protects against poisoning and extends the lifespan of the sensor. Manufactured by NGK, a trusted leader in automotive sensors, this product benefits from state-of-the-art technology and rigorous quality control, ensuring reliable operation over time.
Easy to install as a direct replacement, the NGK oxygen sensor is suitable for professional and DIY maintenance, providing a cost-effective solution that restores your vehicle’s emission control system to proper working order. Ensuring compatibility with your Mercedes-Benz, this sensor helps maintain optimal engine performance while supporting compliance with emissions regulations. Trust NGK for high-quality, OE-grade sensors designed to meet the demanding standards of modern vehicles and to deliver consistent, long-lasting performance.

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