适配大众奥迪途锐氧传感器1K0998262M 0258007361 025800736

If your vehicle shows idle instability, weak acceleration, noticeably higher fuel consumption, or engine fault light (codes such as P0130, P0135), the oxygen sensor may be aging or failed; it normally provides real-time feedback of the air-fuel ratio to the ECU to maintain optimal combustion, reduce emissions, and improve power response. This product fits Volkswagen Touareg, Audi A4/A6, Q5, etc.; OEM number 1K0998262M, compatible with 0258007361 and 025800736. Installation must be done with the engine cold; carefully remove the old part with a dedicated socket to avoid thread or harness damage; follow factory torque spec for installation.