Car Parts

Lambda Oxygen Sensor Oxygen O2 Sensor Front Rear Upstream Downstream Lambda 234-5107 234-4754 For A3 2.0L L4 2006 2007 Lambda Sensor Oxygen sensors have a simple structure, quick response, and are easy to maintain and use. They can improve efficiency and save fuel. Oxygen sensors are key to efficient engine operation. Replacing a faulty sensor can significantly improve fuel... Lambda Oxygen Sensor Oxygen O2 Sensor Front Rear Upstream Downstream Lambda 234-5107 234-4754 For A3 2.0L L4 2006 2007 Lambda Sensor