I got one of the $25 ones off ebay, and it lasted maybe 3 months, before the cable broke out of the white plastic slider thingie.. I haven’t looked at trying to fix it yet though, maybe I could just glue it back together as crowz says.. or perhaps get new slider thing, then glue it..

I smoke too, so window was being used at least once every day for that 3 months, so maybe 100-200 cycles?!

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2004 X5 3.0d
2010 X5 40d

New Zealand