奥迪氧传感器 0258027052 8K0906262C 直插安装，灵敏响应无延迟

This replacement uses a high-temperature ceramic core and dual protective tubes, with materials and welding processes meeting OEM standards. Real-world thermal cycle life is about 30% higher than typical aftermarket parts. OEM numbers 0258027052 and 8K0906262C, compatible with Audi A4, A5, Q5 2.0TFSI engines. Function: monitor exhaust oxygen content in real time and feed ECU to adjust air-fuel ratio precisely; responsive with no delay to help avoid high fuel consumption or emissions exceedance. Installation is a plug-in design; unscrew the old sensor, clean threads, then screw in the new one. Moderate DIY capability; under half an hour, but cold-start operation recommended to avoid burns.