Rear wiper removal
 

Took the nut off under the cap but still couldn't get it off on the type r anybody know if I need to take anything else off .

nope its just a nut and pull off....ooh er missus:grin:

They normally fit quite tight and can rust onto the splined shaft.
WD40, wiggle and patients required.

If you have a small bearing puller that would be perfect or use a wooden doorstop/wedge to tap between screen and arm.