Planning on Disconnecting the Battery... Will I need to re-code my car?

BMWonderz · 05-15-2012, 12:32 AM

Hey party people,

I was searching around but all I found were coding new battery info.

However, what I'm wondering is that if I disconnect my battery (because I plan on installing a sub in my trunk), will this erase the features have that been unlocked from coding? Or will everything retain...

Thanks!

makkan00 · 05-15-2012, 01:56 AM

Your coding will stay there despite of disconnecting the battery.
And I am speaking from personal experience.

ctuna · 05-15-2012, 11:00 AM

No but there may be some temporary errors.
If you have x drive it has and error which clears when you drive the
car(not that far like a block). You loose your trip computer data and the time of day and the heat cooling system(for people) comes up turned off . Hit any button on the temp control to restart. Also it will reset the adaption values if you have and automatic transmission it will have to re adapt to your driving.

BMWonderz · 05-16-2012, 03:10 AM

thanks for the replies guys! sweet... time to proceed in putting some junk in my trunkkkk

05-15-2012, 12:32 AM	#1
BMWonderz Private 10 Rep 62 Posts Drives: 2011 BMW 328i Join Date: May 2011 Location: El Monte, CA iTrader: (2)	Planning on Disconnecting the Battery... Will I need to re-code my car? Hey party people, I was searching around but all I found were coding new battery info. However, what I'm wondering is that if I disconnect my battery (because I plan on installing a sub in my trunk), will this erase the features have that been unlocked from coding? Or will everything retain... Thanks!
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05-15-2012, 01:56 AM	#2
makkan00 Major General 886 Rep 9,097 Posts Drives: F83 and F36 Join Date: Dec 2011 Location: Essex iTrader: (56)	Your coding will stay there despite of disconnecting the battery. And I am speaking from personal experience. __________________ F36 Xdrive for her - HUD, park assist, heated steering wheel, rear camera, Apple car play F36 RWD for him - HK, M sports pack, GTS tail light, Apple car play
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05-15-2012, 11:00 AM	#3
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	No but there may be some temporary errors. No but there may be some temporary errors. If you have x drive it has and error which clears when you drive the car(not that far like a block). You loose your trip computer data and the time of day and the heat cooling system(for people) comes up turned off . Hit any button on the temp control to restart. Also it will reset the adaption values if you have and automatic transmission it will have to re adapt to your driving.
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05-16-2012, 03:10 AM	#4
BMWonderz Private 10 Rep 62 Posts Drives: 2011 BMW 328i Join Date: May 2011 Location: El Monte, CA iTrader: (2)	thanks for the replies guys! sweet... time to proceed in putting some junk in my trunkkkk
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