Sudden window/sunroof failure

[kimshinn]

Have a 1998 BMW has run fairly well but now starting to have problems the most recent is a sudden failure of windows and sunroof, fuses were fine i was told relays were fine that it is possibly the battery computer. Does anybody have any experience with anything like this?

[shaundolphin]

99% of the time in your situation it's the Comfort Relay at fault. Its located behind the glovebox, Blue relay, Either take apart and resolder the joints or replace.