奔驰C200 2007-2010款前氧传感器 0045428618 精准空燃比 降低排放

If your Mercedes-Benz C200 (2007-2010) shows rough idle, weak acceleration, noticeably increased fuel consumption, or engine fault light is on, this is typically a symptom of aging upstream oxygen sensor. The sensor monitors oxygen content in exhaust in real-time and feeds precise air-fuel ratio signals to the ECU to ensure efficient combustion and reduced emissions. This product OEM number is 0045428618 (compatible with 0258017121), designed for W204 chassis C200 models. Installation must be performed on a cold engine. Use a dedicated socket to carefully remove the old sensor, avoid stripping threads, and apply anti-seize to prevent seizing at high temperatures.