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Noise from Air Vents
i have a problem with a noise from the ventilation system.
turning the vent to position 2 and up produces a somehow clattering, crispy sound with a high frequency that is not very loud but annoying.
it is NOT comming from the glove box area.
i really don't know what produces the noise. it sounds like the fan would touch somewhere or a bearing is defect or something like that. it's quite difficult to describe. it does not disappear when i change the air output to floor or windshield or to recirculation. it only alters the volume of the noise a bit.
interrestingly, turning the temperature from cold to hot changes also the intensitiy of the noise. it is loudest near the hot position and then gets clearly more quiet in the hottest position.
perhaps the fan is the problem, but i'm really not sure.
any help would be great.
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