Quote:
Originally Posted by JNoSol
I believe it meant 10 heat exchangers? (oil coolers, radiators, trans cooler, intercoolers, etc.)
BMW usually have a single large fan behind the radiator.
The X35i and X50i guys are claiming the fan runs long after stops as well. So the 2 batteries theories for the fans might not apply as they have a single battery.
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Check out this thread: "Here is the battery replacement SIB for ALL F15 X5"
http://f15.bimmerpost.com/forums/sho....php?t=1126569
This is why I think the bigger battery is about the energy draw from the routine need to drive cooling fas after engine shut off.