Genuine OEM Volkswagen Heater Blower Control Module, part number 5Q0907521F. This electronic component is crucial for regulating the speed of the vehicle's heater blower fan, allowing for precise control over cabin ventilation and temperature. It is typically located within the HVAC system, often near the blower motor itself. The module features an integrated aluminum heatsink to dissipate heat generated during operation. Choosing a genuine OEM control module ensures correct electrical calibration, compatible firmware, and reliable performance for consistent climate control.

Catalogue entry: REGULATOR.