Mercedes-Benz Original Replacement NOx Sensor SNS968 A2C1981980001 7099784C1

Mercedes-Benz diesel models W204/W212: OEM nitrogen oxide sensor (model SNS968/A2C1981980001), OEM number 7099784C1, installed close to the catalytic converter in the exhaust system. Its main function is to monitor NOx concentration in exhaust in real time and feed back to ECU to optimize combustion efficiency and emissions reduction. If the engine check light, abnormal fuel consumption, or weak acceleration occur, inspect promptly. Installation difficulty: medium; roughly 1 hour recommended; ensure proper wire harness securing and clean connectors.