so after a few more testing and some research, looks like it is indeed the heater motor. The reason it squeels when I brake is probably from the -g's throwing the motor off ballance due to the worn out bushings. I guess i will try sparying some lubricant on/inside the motor it self and see if helps, but i think i will have to replace the motor soon anyways...

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'06 X5 4.4i| (08/06 built date) | Executive Edition | Sport Package
'08 X3 (wife's ride) - Sold
'05 325i - Sold
'03 325i - Sold
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