Hi, I too have a 2015 X1 that I have just bought and would like to fit folding mirrors. I spoke to my local BMW dealer here in Liverpool and they informed me that a retro fit kit was not available, so maybe just fitting the new parts will not work,maybe the wiring has not been put there at the time of manufacture,when the mirrors would have been fitted as per original customer order. I suppose the only way to find out,will be to fit and see,(if the wiring exists,etc).Fingers crossed,someone can provide accurate info.
