The Mercedes-Benz Radar Sensor (Part Number: A) is a genuine OEM component manufactured by Bosch (Bosch Part Number: ) that serves as the central control unit for the vehicle's DISTRONIC cruise control and advanced driver assistance systems.Key FunctionsDISTRONIC Pro Adaptive Cruise Control: It uses radio waves to measure the exact distance and speed of vehicles ahead, adjusting your speed automatically.Active Brake Assist: Powering the collision warning system with FCW-Stop to trigger autonomous emergency braking if a crash is imminent.Lane Keeping Support: Helps monitor spatial layout to assist with keeping the vehicle center-aligned