hello let me try to make this fast i needed to change the fan clutch on my x5 so i searched the part number on realoem.com i got the part number and ordered the part when i went to put it in it was to big it didnt fit in the fan so i took the part number off of the one i have and re ordered it and sent the other one back but then i typed in the part number of the one i have on realoem and it shows that the part number is for a 7 series now what i wanna know is it possible that the guy that sold me the x5 replace the motor and not told me?