Genuine OEM Audi Fresh Air Blower Control Unit, part number 5WA907521. This electronic module is responsible for precisely regulating the speed of the fresh air blower motor, allowing for variable airflow control within the cabin's heating and air conditioning system. It typically features a finned aluminum heatsink to dissipate heat generated during operation. Weighing approximately 0.205 kg, this unit ensures consistent and reliable climate control. Choosing a genuine OEM control unit guarantees correct electrical calibration, compatibility with the vehicle's HVAC system, and long-term operational stability, which are crucial for effective cabin comfort.

Catalogue entry: Ctrl unit.