Well easy enough to strip the actual linkage and to free off.
Flip the caps off the windscreen wiper arms to get to the retaining nut. Undo the nut slightly but not full and lift the wiper arm off the screen and it should wiggle loose...then remove the nut.
remove the skuttle panel by going to the right hand side and unscrewing the smuggle over the pollen filter. Then lift the skuttle up from the windscreen edge and away. This can be a bidditch and the trick is to start at the corners...do not use anything against the screen ie screwdrivers as it is likely to crack.
Next remove the linkage, there are 3 retaining nuts with washers...worth checking the state of them at the same time. To get the motor connector off can be tricky as my wiring was quite short. Once disconnected then remove the whole linkage and motor.
Next it time to make note of the orientation of the linkage and motor arm...then remove the motor by dropping the couple of nuts/bolts off. Make note of the orientation of the linkage.
Then it's time to free the linkage off...i then had to rmove the spindles from the linkage. Mine weren't too bad. C clip wanted to fly off tho and was a bugger to find
Once out I thoroughly greased them and reversed the whole process.
I found it easier to replace the skuttle by removing the end caps around the bonnet/A pillar also a bit of silcone based lube may help
