Re: Rossa Mk. 1 Window Winders
Yes, remove the window - it's safer and you have less chance of breaking the glass when removing/fitting the runners
The procedure according to the manual is to unbolt the winder mechanism from the frame (presumably with the window about half way down)and manoeuvre it around to disengage it from the runners and then lift the window right out. If I'd read that first it would have been a lot easier to remove mine