Genuine OEM Audi Parking Brake Control Module, part number 4E0910801D. This electronic control unit is responsible for managing the vehicle's electronic parking brake system, ensuring proper engagement and release. It is typically positioned in the rear of the vehicle. The module measures approximately 0.146 meters in length. Opting for a genuine OEM control module guarantees correct firmware, precise sensor calibration, and seamless communication with other vehicle systems, which is critical for safety-related functions like the parking brake.