Repairing the window lifter
A sharp popping sound and the door window slides (or falls) down. Nice surprise but it does happen as our cars age. The window lifter mechanism uses galvanized steel Bowden cables and these tend to rust over time, especially if the climate is rainy and wet, or the door gets damp inside for any reason.
What to do now? First of all, don't press the switches in this case. Allowing the motor to rotate will eventually jam the cables now loose, allowing them to jump from their proper guiding channels. This can lead to more extensive damage than just the snapped cable.