To circulate fresh air from outside or cooled air from the air conditioning system throughout your car, you need a fan that does this with multiple speeds.
You won't run into problems with the housing so quickly, rather it's the fan itself that can start making noises after many hours of operation, which is due to wear and tear on the motor.
This new fan replaces the complete unit, the movement of the cooling air will again be as it should be, without secondary noise.
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