After taking off the door panel - why do they make these things so difficult..and faffing about for 1/2 hour with no joy I read the answer in a different forum....
DW40 in the side runners and bottom rubber to remove any grime that may hinder the window and initiate the auto jam. Ran the window up and down for couple of minutes and it eventually reached the top..hurray.
Martyn
August 2014