AB398000S MAHLE Fan, interior

MAHLE's AB398000S Interior Blower is an essential component for automotive electrical systems, particularly in body electronics where it plays a role as a blower motor. Its primary function is to blow air inside the vehicle. Technical benefits include enhanced airflow and noise reduction thanks to its design. Blower motors are responsible for forced-air circulation within a vehicle’s HVAC system. Typically located within the HVAC housing, these multi-speed electric motors drive a fan to move air across the heater core and evaporator, distributing heated or cooled air through the vehicle’s vents. Construction commonly includes a squirrel-cage blower wheel, an electric motor with brushes or brushless design, and temperature-activated control resistors. Performance is rated by cubic feet per minute (CFM) and voltage requirements vary based on vehicle application. Failure modes often include motor burnout, resistor failure, or physical obstruction of the fan wheel.