It needs the trans oil drained and the pan removed,its quite a simple job to replace.There is a keeper assembly that needs to be pulled down from inside the trans to release the sleeve,be careful when refitting the mechatronics connector as the pins are quite easily damaged.whilst you have the pan down you should also replace the trans filter.The sleeve has been updated and the O rings are now made of a different material.This has also changed the colour of the oring.It took me about 3 hours to get the vehicle on blocks,drain oil,remove pan,replace sleeve and filter,replace pan and refill oils.