Replaced battery and car completely dead

marchhe · 05-21-2017, 04:27 PM

I replaced my battery yesterday. Made big mistake of closing the trunk, planning to take it for a ride... End result 1) cannot get back into the trunk 2) the car is absolutely dead, key won't work, no lights, nada, nothing. What happened?

ianc · 05-21-2017, 09:34 PM

I guess you won't know until you get inn there to take a look, but likely one of the connections is not on solidly. I've been seeing a thread here over the past week or so dealing with just this question, so track it down and have a read...

ianc

infinitekidM2C · 05-22-2017, 07:06 PM

Did you have the new battery coded? uh oh

juld0zer · 05-29-2017, 06:21 AM

Get a mate to give you a jump with the engine bay. That will energise the system and allow you to unlock the boot

Ronin135 · 06-09-2017, 08:27 AM

Yes, just have someone connect to your positive terminal under the hood on the passenger side. Connect to your battery and then just use your FOB to open the trunk. I was in the same situation as you. I even followed a you tube video that said I should be able to unlatch my rear seats... well wrong they didn't have that option maybe the Euro version does.

05-21-2017, 04:27 PM	#1
marchhe Registered 0 Rep 2 Posts Drives: 128i Join Date: Jun 2011 Location: PA iTrader: (0)	Replaced battery and car completely dead I replaced my battery yesterday. Made big mistake of closing the trunk, planning to take it for a ride... End result 1) cannot get back into the trunk 2) the car is absolutely dead, key won't work, no lights, nada, nothing. What happened?
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05-21-2017, 09:34 PM	#2
ianc Ex '87 Carrera 246 Rep 1,259 Posts Drives: '10 TiAg 6MT 135i Join Date: Feb 2010 Location: Redwood Shores, California iTrader: (0)	I guess you won't know until you get inn there to take a look, but likely one of the connections is not on solidly. I've been seeing a thread here over the past week or so dealing with just this question, so track it down and have a read... ianc
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05-22-2017, 07:06 PM	#3
infinitekidM2C Major General 4207 Rep 5,728 Posts Drives: 2019 M2 Competition Join Date: Nov 2007 Location: Orange County, CA iTrader: (4) Garage List 2019 M2 COMPETITION [9.50] 2008 135i (my old car) [7.39]	Did you have the new battery coded? uh oh
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05-29-2017, 06:21 AM	#4
juld0zer Lieutenant Colonel 480 Rep 1,600 Posts Drives: Prev 135i 7DCT, Now 130i 6sp Join Date: Jul 2016 Location: 2153 iTrader: (0)	Get a mate to give you a jump with the engine bay. That will energise the system and allow you to unlock the boot
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06-09-2017, 08:27 AM	#5
Ronin135 Private First Class 44 Rep 122 Posts Drives: 2012 135i, 6MT, M trim Join Date: Feb 2017 Location: Denver iTrader: (0) Garage List 2015 BMW X4 28i [0.00] 2017 X5 35i [0.00] 2012 BMW 135i M Sport [0.00] 2017 X3 XDrive 28i [0.00]	Yes, just have someone connect to your positive terminal under the hood on the passenger side. Connect to your battery and then just use your FOB to open the trunk. I was in the same situation as you. I even followed a you tube video that said I should be able to unlatch my rear seats... well wrong they didn't have that option maybe the Euro version does.
	Appreciate 0 Quote