Mercedes-Benz Air-Fuel Ratio Sensor A0085423918 Oxygen Sensor OEM Replacement 0085423918

Mercedes M274/M276 engine models can use KLP air-fuel ratio sensor A0085423918. This oxygen sensor uses high-temperature ceramic elements and precision welding; material matches original standards, able to withstand high temperature vibration in the engine bay. OEM number A0085423918 (also listed as 0085423918); real-time monitoring of exhaust oxygen content and feedback to ECU to adjust air-fuel ratio, ensuring combustion efficiency and emissions compliance. Installation difficulty medium; remove old sensor to replace.