Genuine OEM Audi Heater Control Motor, part number 4F0820511B. This actuator motor is responsible for regulating the blend doors or flaps within the vehicle's heating and air conditioning system, precisely controlling airflow and temperature. It is typically located on the right side of the HVAC housing. Constructed from durable PP-GF30 plastic, this compact motor weighs 0.106 kg. Choosing a genuine OEM heater control motor ensures accurate calibration, smooth operation, and long-term reliability, preventing common issues like inconsistent temperature or airflow.