Parasitic drain

[santinif4]

Hello - I have had the dreaded parasitic drain issue on my 2005 X5 4.4 for some time now and have possibly fixed it. After researching the forum and reading the many posts on possible causes and solutions, several culprits consistently showed up at the top of the list. FSU/FSR (final stage unit/resistor) and the TCU circuit were both very likely culprits, so I decided to try the easiest first, which was to simply pull the fuse for the TCU which is not used anyways.

The vehicle would normally be dead after 5-6 days if not driven. It has been 8 days now, and I have been able to start it for the last 3 of those 8 days so far. I don't drive it or let it run( so as not to recharge the battery in any way) and it may be that the TCU circuit was the problem after all. I hope I am that lucky.

My question for anyone that knows is what else is on that fuse that I pulled for the TCU circuit (I believe it was fuse 74 in the panel in the rear right trunk compartment)? If there isn't anything else powered by through that fuse I may be good to go, but I just wanted to make sure I wasn't losing some other feature/device on that same circuit! Can't find any schematic for it...

Thanks !