Plugging back the Battery after winter storage

Bavarian54bimmer · 02-14-2013, 08:57 PM

Hello Guys!

As the title says it am about to plug back my battery, car been stored since Dec 1st in a heated garage , i just unplugged the (-) and did not use a battery tender .

what am worried about though is any Engine errors. a friend of mine told me that the ECU will not recognize the battery etc,,, does this make any sense? will i have any issues by just plugging it back ?

Thank you

JHZR2 · 02-17-2013, 05:10 PM

No you shouldnt have issues.

IIRC, the battery registration keeps track of miles, and so assuming the map is based upon miles and time, it should be fine. Some parameters may get learned regarding the engine and AT, but that is no big deal.

02-14-2013, 08:57 PM	#1
Bavarian54bimmer Second Lieutenant 54 Rep 216 Posts Drives: Alpine White 2008 135i Join Date: Feb 2012 Location: Montreal , Canada iTrader: (0)	Plugging back the Battery after winter storage Hello Guys! As the title says it am about to plug back my battery, car been stored since Dec 1st in a heated garage , i just unplugged the (-) and did not use a battery tender . what am worried about though is any Engine errors. a friend of mine told me that the ECU will not recognize the battery etc,,, does this make any sense? will i have any issues by just plugging it back ? Thank you __________________ 2008 135i Alpine White 6MT/ BMW SSK / top HiFi logic 7 / Red Boston / Michelin PSS / PPK1 / OE Perf Discs with Cool Carbon /CDV Delete .
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02-17-2013, 05:10 PM	#2
JHZR2 Major 74 Rep 1,001 Posts Drives: 91 E30, 11 135i cv Join Date: Mar 2009 Location: New Jersey iTrader: (0)	No you shouldnt have issues. IIRC, the battery registration keeps track of miles, and so assuming the map is based upon miles and time, it should be fine. Some parameters may get learned regarding the engine and AT, but that is no big deal.
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