Right then, here goes on an outer CV gaiter replacement. The kit costs about 27 quid from VW and contains the following
New gaiter,
Large and Small Clips,
A spring clip,
Dished washer and a spring clip.
With the wheel still on the ground loosen the hub nut with the 30mm twelve point socket.
(please excuse the state of the wheel I've not had a chance to clean my car for a while, it got done right after sorting the CV joint out)
Jack the car up and remove the wheel,
Remove the caliper carrier and tie up out of the way.
Mark the position of the upper nut plate on the lower ball joint fasteners
Undo the three bolts holding the lower ball joint to the hub using a 13mm socket.
Remove the loosened hub nut, then using a soft hammer nock the hum off the drive shaft.
I’ve wrapped the spline’s and threaded section of the drive shaft in tape to protect it.
(the block of wood's there to prevent anything sudenly dropping)
Remove the old clips and push the gaiter away from the CV joint. Very carefully tap off the C joint
Clean up the old grease and ensure that there is no grit or dirt in the joint.
Slide the new gaiter over the end of the drive shaft. Take care not to damage the gaiter on the splines or thread (hence the reason for taping them up)
Fit the dished washer with the convex side pointing towards the gear box, followed by the thrust washer.
Then install the circlip to the grove on the drive shaft.
Add the new grease to the CV joint and gaiter.
Replace the CV joint, and crimp on the new retaining clip. this is normally done with a speciallist tool but I found it can be done with a set nail puller (shown in the first pic next to the gaiter) but you need a good strong pair of hands. I ended up resting one side up against a block of wood then using my weight(plenty of that 
to crimp the clip up properly.
Push the gear box end of the gaiter onto it’s seat.
Very carefully slide a flat bladed screwdriver just lift the end of the gaiter to equalize the pressure. Then fit the retaining clip and crimp firmly in place.
Remove protective tape then refit the hub to the drive shaft in the reverse of the removal steps.
Torque the hub nut up to the required amount as stated in a Haynes manual for your car. Mine was 50NM
Sorry about the lack of pic’s for the last half but I ran out of gloves and didn’t want to get my camera covered in grease.
Hope that helps someone, just make sure you've got everything you need to do the full job before you start and the car is properly supported.
Cheers
Greg