Wife's copy of x5 had parasitic drain turned out to be the FSU. Very easy to replace. Lucky for me I stumbled into that possibility early on into the diagnostics; the fan worked at all speeds so it didn't jump out as a gimme, but with 120k miles on the clock, i poked my head in and could tell from the design it was original (fat cone fins vs thin cylinders). replaced and all was well again. Not sure if the FSU is on that particular fuse; 7.5A is too little to run the blower, but if it's the control-side of the unit that could make sense.

Her car has the 'rest' mode that will allow the fan to run when the car is off (even without the key i think), so it would be an easy thing to have a defect and drain power.

__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)