奔驰C级W205氧传感器0005423100 0258017483 原装位安装

Mercedes-Benz C-Class W205 (2014-2021) gasoline engines oxygen sensor, OEM number 0005423100, corresponding to Bosch 0258017483, installed on the exhaust manifold or pipe. Core task is real-time monitoring of exhaust oxygen content and feeding signals to the engine control unit to precisely control the air-fuel ratio, ensuring combustion efficiency and emission compliance. Installation difficulty is moderate; expected labor 1-1.5 hours; handle carefully to avoid thread or wiring damage. Replacing resolves idle instability, higher fuel consumption, and weak acceleration caused by sensor failure.