Genuine OEM Mercedes-Benz Lambda Sensor, part number A0005424304. This sensor monitors oxygen levels in the exhaust gases, providing vital data for the engine control unit to optimize fuel combustion and emissions. It is typically installed in the exhaust system before or after the catalytic converter. The sensor features a durable construction designed for high temperatures and harsh exhaust environments. Genuine OEM parts ensure precise calibration and signal integrity for optimal engine management and emissions compliance.