For A4 1.8L 2001-2006 Car Lambda Sensing Unit Oxygen Sensor Vehicle Component 0258007351

Compatibility：For A4 1.8L 2001 2002 2003 2004 2005 2006 Function: The oxygen sensor detects when the air-fuel mixture is too rich or too lean and makes corrections via signal response, securing the mixture remains close to the stoichiometric air-fuel ratio at all times. Features: This oxygen sensor is manufactured from reliable materials and features a well-sealed connector, which reduces the ingress of rainwater and car wash water, thereby inhibits short circuits and corrosion and extending the service durability of the connector. 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.