Ok, Merry Chrimbo all.
Managed to get this done earlier today.
Fiddly job that requires large ish Allen hexbits, 5.5mm socket/spanner and/or I think it was a T15 torn bit. Oh and double jointed child's hands. Not having those I managed with a bendy torx driver, saved the day essentially.
The ELSA guide says to remove both wipers, I managed just removing the nearside.
This is in no way a guide, but hopefully the pictures will help anyone who needs to do this themselves.
I reckon my blower had got noisy from water ingress, as the drainage ducts I think have been squished when the pollen filter has been replaced incorrectly; it's quite fiddly to do right I guess.
Took a good while to find screws that were hidden in different locations to the earlier D3s. Hope this helps, I think the pics explain the process pretty much.
I started by marking with tape the position of the wipers:
Remove plastics:
and nearside wiper arm with this:
Remove bracing that has 13 bolts:
This is the bugger, and it has two MORE tiny screws behind it. Don't forget those
These are the ducts that I think have been neglected:
All the best. John