For BMW 3 Series 323i E91 2007-2010 Car Lambda Sensing Unit 4pcs Oxygen Sensor Probe 11787537984

Compatibility：For 3 Series 323i E91 2007 2008 2009 2010 Function: The oxygen sensor can detect variations in combustion caused by changes in fuel quality and make corresponding adjustments via signal response, thereby adapting to the use of different grades of fuel. Features: This oxygen sensor is manufactured using high-precision welding techniques; the joints between components are securely welded, securing superior sealing and resist gas leaks, thereby guaranteeing the accuracy of the measurement data. Please note: Before purchasing, please check that the make, model, year and engine type of your vehicle match those listed, to avoid installation failures due to incompatible specifications. After-sales service: Should you encounter any issues whilst using the product, please let us know and we will provide a solution without delay.