奔驰氧传感器 A0065422218 F00E263207，德系车尾气处理搭档

Oxygen sensor directly replaces Mercedes-Benz original part A0065422218 and is compatible with F00E263207; broad applicability. Its core function is to monitor exhaust oxygen content and feed the signal to the ECU to precisely control the air-fuel ratio, ensuring engine combustion efficiency. Fits Mercedes-Benz C-, E-, S-Class with M272/M273 engines. After installation, it can address high fuel consumption, weak acceleration, and excessive exhaust emissions. If idle is unstable, check engine light often on, or fuel consumption suddenly increases, an aging O2 sensor is likely—replace promptly.