Originally posted by 830@Feb 14 2006, 09:54 AM
this chirping sound is very very normal in e46s. the blower is showing signs of aging. i also sont understand why wira blower dont sound like that after 5 years, a bimmer blower would.
worse case scenario changing the blower will set you back by as much as 1k (left and right). The whole dashboard has to be taken out just to change this blower. If you have seen them taking out the dashboard u would know how tedious it is. while they are at it, you should ask them to check or change other things that involves taking out the dash.
i drove around with the sound with my old car for about 9 months. the sound is not detrimental to the car. It just irritates the sh!t out of you. and the thought of spending 1.2k to get rid of it dont help.
try not to park your car in the sun so much. should help prolong the blowers lifespan... among others
meanwhile, if the chirping is new, it should only sound at 1 particular fan speed. increasing or decreasing it would make it go away.
it's a jungle in there!