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Why does the BMW 3 Series blower not work after being unplugged?

1 Answers
RuthFitz
09/06/25 5:08am
The BMW 3 Series blower not working after being unplugged is due to the fan being jammed or improperly installed. Function of the blower: The car blower's function is to blow the cold air from the air conditioning evaporator or the hot air from the heater core into the vehicle interior. Composition of the blower: It mainly consists of the following six parts: motor, air filter, blower body, air chamber, base (also serving as the oil tank), and oil drip nozzle. Working principle: The blower operates via the eccentric rotation of a rotor inside the cylinder, changing the volume between the rotor slots' blades to suck in, compress, and expel air. During operation, the pressure difference in the blower automatically delivers lubrication to the oil drip nozzle, which drips into the cylinder to reduce friction and noise while preventing gas backflow in the cylinder.
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