New answers tagged power-windows
You've already fixed it, but I'll provide an answer for posterity... The most likely causes of this are a faulty switch or faulty wiring. The switch can be easily tested by swapping it out for another (e.g. one of the back ones). Wiring in car doors is notorious for failing, as the wires all have to go from the door through the 'snake' to the car body, ...
You can buy the plastic clips on eBay from around £2($4) the pair. The plastic does not stick well enough, even with super glue. Not really a repairable item.
What I've found in several of these is that the motor itself is fine, but it's internal thermal fuse goes bad (becomes higher resistance giving less voltage to the motor). I've even replaced the thermal fuse for a couple bucks and the motors then work like new. I wouldn't recommend doing this unless you are familiar with soldering and electronics.
Put some WD-40 onto a rag and wipe the seal area with it. The "WD" stands for water displacement. When applied, it will keep the moisture off of the seal so there will be nothing there to freeze to the window.
As you live in an area of the world that has extremely cold weather, your vehicle supplier may have something on his shelf for just a situation. Here in the UK we see this type of window, Peugeots and VW's in particular, but do not seem to suffer this problem.
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