Sony G90 C-Element Change 

12. Replace the glycol tank screw and turn the assembly upside down like this (using Sony original tube carton can help with this as seen below):

You can easily see that there is air inside and below the C-Element.  By placing the tube exactly vertical, we'll avoid glycol spilling out when we remove the C-Element from the LC housing.

13. Retrieve the Marquee C-Element and start to remove the remaining rubber from the C-Element by cutting the bellows behind the C-Element and remove it from the housing (use Exacto sharp blade or equivalent):

14. A view of the C-Element with the main part of the rubber removed:

15. With the blade, finish removing the remaining glued-on rubber: