Took the motor apart today and the tube that supplies the fluid is broken. Tried to get the rest of it out and it wont move, with WD40 , hammer, screwdiver drill and a lot of other things including wood and threaded bar (and swearing). Then i tried to remove the rear wiper arm and thats stuck solid aswell again hammer spanners and allsorts in the end i had to cut it off. Still could not get the tube out in the vice. So 1 new wiper arm on order and a brand new motor.