Greetings,

This happended to me on my 98 e320 so I don't know if it will help you, but your switch might need to be "re-synched". To resync, hold the switch down and.....better yet, read this posting (the second set of instructions are better, do not have to remove anything, just depress your swtich):

S-500 Window won't Auto UP!

Happy holidays!

__________________
300SD ('81), 190E ('89), 420SEL ('86?), Jaguar XJ6 VDP ('96), E320 ('95), Jaguar XJ6 ('97), E320 [S210] 4matic wagon ('98), Nissan Maxima SE ('02), DeVille ('93), BMW 325 ('03), LS430 Ultra ('01), Avalon Limited ('05), S430 ('06), MINI Cooper ('05), Toyota Camry ('07), Hyundai Azera Limited ('07), E350 ('06), LS430 ('05)
Current rides:
Nissan Versa ('08), S430 ('03)