Hi Paulo, I changed mine about 5 months ago and followed the
guide mentioned but unfortunately I didn't take any photos. However I'll try to explain as best I can -
When you remove the rear door card, you will be faced with the metal window carrier, as in this pic:
Below the window motor you will see a BLACK rubber grommet which when you pull off will give you access to the window retaining bush:
Lower the rear window down until you can see the WHITE bush:
I used a 5mm threaded bolt to screw into the center bush and used a draw-hammer (you can use pliers) to pull the center bush out. Then you can pull the outer bush out - or if it falls into the door frame you can get it out when you remove the metal window carrier.
Raise the window up to about an inch from the top and hold in place with tape - I used Duct Tape in a 'X' pattern.
Pull out door handle and remove wire, unbolt door lock, disconnect electrics, unbolt metal window carrier and carefully remove carrier.
Disconnect door lock and remove then replace in reverse.
When replacing the window locating bush, place the both inner & outer into hole in bottom of window before
lowering it onto carrier. You will have to give the window a firm push down to make the bush 'click' into position
Hope this helps a bit better