Power windows are a very convenient accessory. They are also one of the most numerous repairs we perform at AGCO Automotive. This is partially due to very light-weight designs from manufacturers. Rather than gears and steel lifting mechanisms, many vehicles now use plastic and light stamped metal regulators.
The power window motor turns a small [plastic] spool. This feeds a piece of wire cable, attached to the window, up or down. Eventually the cable, spool or one of the guides breaks. This leaves the owner with a window, stuck up or worse, down. While there is little the car owner can do about poor design, there are things that can help greatly extend the life of power windows.
When using the window, release the switch as soon as the up or down position is reached. Continuing to hold the switch will vastly increase strain on the components.
Holding down or resting on the glass while raising or lowering can damage the mechanism.
Keep the windows and guides cushions clean. Any sticky substance on the glass or window guides increases the load on the mechanisms.
Occasionally wipe the guide channels, the glass rides in clean. You can also apply a light coat of dry, silicon spray to the felt channels to ease operation.
If your power windows give you trouble, remember AGCO, it's the place to go.
