"just" instead of "used. What is happening to my grasp of the English language...
But Hasse, you made my day! Yes, there is a hole that gives access to the lower torx bolt!!! I will post vids later. I think it is the upper one in my case (early 2004 V70 D5)
Right now I have an issue of NOT having sealant as I have an extra gasket, but I didn't read your post carefull enough. My gasket is indeed for the assembly to the engine, not for the split parts. And that is the one that is in worst shape
Pic shows gasket with worn rubber(?) around the thermostat and the old & new (still sealed) gasket that goes between the complete housing and the engineblock.