Berlingo 2009

[bigpedro]

I have removed the nut from the reaer wiper arm on my 2009 citroen berlingo but the arm does not seem to be coming off is there anything else i need to do 

[Johndouglas]

The arm is attached to a tapered, splined shaft.   Sometimes it needs a little persuasion to move.   Try a bit of leverage with a broad screwdriver (without levering against the glass) .  Make sure it replaces in the same position.  

[paul.h]

You may end up needing to use a puller. You can get ones specifically for wiper arms or use a small general one, a google search on wiper arm puller tool brings up lots of options. When you refit the arm first clean up the corrosion on the shaft and use a smear of grease in case it needs removing again. Before removing it you should use a bit of masking tape along the line of the wiper blade on the glass to help position it correctly when refitting.