My wife drives a 2000 Micra 1.0 which has manual front windows. The winder on the drivers side has come off and I cant see how to fit it on securely so that it doesn't keep falling off the spline every time the door is closed!
There should be a C-shaped spring clip on the spline. You should be able to see a recess about 1/2 inch from the end of the spline.
To remove, use a loop of fishing line or thin wire. They tend to ping off and are easy to lose.
To refit, put the spring clip on the spline and push the winder on.
Have a look on the passenger side and all should be clear.
