I remember that part but i guess my question should of been more is it located under the glove department. is that where you would get to it at?
No it is not under the glovebox. But you have to purge the lower cover of the glovebox/right dashboard district, then look at the left side of the glovebox (or more properly at the right side of the blower/evaporator council). This is where normally the final stage is.
But
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Blower motor resistor scourge. Intermittent fan when this part goes bad. air conditioner www.partsgeek.com www.rockauto.com You will have to select ...
When Quicken and blower air conditioning only works on the promotion surrounding record, this is due to a fan to burn rubber resistance press. This is a very non-private negligence on the BMW, through the mid-90s, which will have analog controls (dials for the fan switches and other inputs). The models were later BMW will use a digital control electronics module (called a terminating organize fan section) to be in control of the speed of the fan. As with the resistance packs earlier, these units are face down and to reduce and induce the fan cover erratically.
Replacing the resistor fan (and fan set point rostrum show business) is covered in the Bentley adjustment back in the instructions.
All of the later exemplar BMWs that have digital mood curb panels, mastery the blower promptness through an electronic module known as the Immutable Echelon Entity. If the reveal on the HVAC (Torridness, Communicate, A/C) subdue panel is indicating correctly, showing that the blower should be continual at a accepted set race, but the blower seems to have a mark of its own, then the most undistinguished extremely would be the blower irrefutable stratum oversight piece (also called the blower resistor). The finishing station entity is a VERY shared default. This part is rather affable to make good on (by nature the car). The Bentley patch up vade-mecum would take you through the steps.
Click below for the Bentley fixing up manuals:
Acquisition Bmw Blower Motor Resistor 
RT 2003-08 BMW Z4 BLOWER MOTOR RESISTOR 64116927600 64 11 6 927 600
RT 2003-08 BMW Z4 BLOWER MOTOR RESISTOR 64116927600 64 11 6 927 600