I have a 2013 XC60 B6324S4 and have pulled EVERY fuse and relay (even in C bank) one by one and have not yet found my parasitic draw. I am looking for ANYONE that could tell me what are all the non-fused items/modules that i should disconnect. I have additionally disconnected the Alternator (and replaced) and disconnected the ECM near the wipers. Coming out to a new (1 week) battery at 12.57VAC and doing a current check I get a tremendous swing on a Fluke DMM of 0024-0859 mA. I would guesstimate that these erratic readings happen within a 3 minute period after the modules go to sleep. When the modules start up, I usually will read 3.94 A - 2754 mA draw, and as the modules settle down, it fluctuates wildly at the 0024-0859 mA readings and anywhere in-between. So I'm guessing since all fuses and relays were pulled, that the non fused items are the culprit. Does this sound correct? If so what are the non fused items/modules on the 2013 XC60?.

 

You did try the "Engine Valves" fuse? That is one of my 2010. The injection system randomly turns on and kills the battery. You can hear a buzzing noise with the hood open. Pull that fuse and it stops. Re-insert it and it does not restart right away. Put in a remote kill switch.
One of the consequences of having an access standby system rather than an archaic off switch. And stupid engineers that think the injection system should be powered when the door opens but not the windows with the key in and not running.

 

Interesting point of view windows vs doors.