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Qsilver7 · 12-28-2020, 09:50 AM

@ BB2018 & Rob2912 - Glad I could be of some help in this matter.

And here’s some more info about the PCU and how it facilitates the aux battery...do be AWARE that if you have the aux battery set-up...that when you disconnect the MAIN battery...the car is still powered by the aux battery. So if you need the vehicle totally powered down...you need to remove the negative battery cable from the aux battery, too.

12-28-2020, 09:50 AM	#7
Qsilver7 Major General 4448 Rep 7,488 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	@ BB2018 & Rob2912 - Glad I could be of some help in this matter. And here’s some more info about the PCU and how it facilitates the aux battery...do be AWARE that if you have the aux battery set-up...that when you disconnect the MAIN battery...the car is still powered by the aux battery. So if you need the vehicle totally powered down...you need to remove the negative battery cable from the aux battery, too. Attached Images __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
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