Bosch 0258017209 Original Equipment Wideband Oxygen Sensor

The Bosch 0258017209 is a genuine original equipment lambda oxygen sensor designed to optimize engine performance and fuel efficiency. This pre-catalytic converter sensor measures the oxygen content in exhaust gases and transmits precise signals to the engine control unit (ECU), enabling real-time adjustment of the air-fuel mixture for optimal combustion and emissions compliance.

Key Features:

• Original equipment quality sensor with vehicle-specific connector for direct fit installation
• Heated sensor design provides faster response time and accurate readings in all operating conditions
• Precision-engineered ceramic element delivers reliable long-term performance
• Helps maintain proper fuel economy and reduces harmful emissions
• Functionally and quality tested to the same standards as factory-installed parts

Also known as a lambda probe or lambda sensor, this component plays a critical role in modern engine management systems. A failing oxygen sensor can cause decreased fuel economy, rough idle, and check engine light illumination. Cross-references to OEM part numbers 11787549860 (BMW/MINI), 1618KN, and supersedes Bosch part number 0258017112.