BMW Repair Questions? Ask a Mechanic for Answers ASAP
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this cannot be a fuse since the windows are not individually fused.
this is unfortunately most likely just a simple failure of the window lift or window lift motor,which requires part replacement
the only other poosibilitie, which are both remote, would be a wiring issue, control module failure, or failed switch.Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.