Like someone suggested, have you tried to press and hold the unlock button to see if the windows roll down?

__________________
His : 2005 X5 4.8is (SOLD)
Hers: 2007 X5 3.0si (SOLD)
_______________
Retired:
1999 518
2000 323i
2002 M3 (beautiful car)
2003 330Ci