you neeed to rent an air chisel and that will pop off the nut, remember to loosen is clockwise. then all you have to do is take the belts off and the seven bolts holding the alternator in place. make sure you get a new oring gasket for the alternator. autozone has a remanufactured one for 400.00. goodluck

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2001 X5 4.4i WHITE-Loaded like a baby's diaper SOLD