Enuine OEM Mercedes-Benz Active Radar Cruise Control Assist Module removed from a Mercedes-Benz W222 / W253. This radar-based control unit operates the vehicle’s adaptive cruise control (DISTRONIC PLUS) system, automatically maintaining distance and speed for safer, more comfortable driving. Part Type: Active Radar Cruise Control Assist Module (DISTRONIC PLUS) Part Number: A000 900 9217 Fitment: Mercedes-Benz W222 S-Class, W253 GLC-Class (may fit other models – please verify compatibility using VIN or part number). Condition: Used OEM part, fully tested and in excellent working condition. Authenticity: 100% Genuine Mercedes-Benz factory part. Calibration/programming may be required after installation. Professional installation is highly recommended. The item in the photos is the exact one you will receive.