Im new to the forum, but have been coming here for advice for a long time. I have a disco 2003 se7. Passenger side wiper arm does not work. I believe after a few times of getting stuck in snow/ice the nut has stripped somehow, the driver side works fine. I think it is slipping due to stripped nut, its not gripping to the part that makes it move. Any ideas for repair?

 

start by tightening the nut that holds the wiper arm on....it's a tapered fit and made to slip if the resistance becomes too great..........