For S4 B5 Quattro ARG 1995-2000 Lambda Sensing Unit Probe Oxygen O2 Sensor Car 0258006307

Compatibility：For S4 8d2 b5 1.8 For Quattro arg 1995 1996 1997 1998 1999 2000 Features: This oxygen sensor utilises a high-temperature-resistant ceramic substrate with superior thermal stability; it is resistant to deformation and cracking in high-temperature environments, thereby maintaining the structural integrity and detection accuracy of the sensing part. Function: The front oxygen sensor is primarily responsible for monitoring the oxygen content in the exhaust gases after combustion, providing the main response signal for fuel injection adjustment; it is the core data source for closed-loop control. 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.