More Electrical Failure gremlins - BMW 3-Series (E90 E92) Forum

Craigito · 02-09-2013, 08:24 PM

Some of you have read my previous posts about this. So i had gone almost a week with no warnings and the first time I had someone in the passenger seat it starts happening. This happened previously too. What might be the reason having a passenger (one in front and rear passenger) would trigger the elec failure warnings.

I have not taken it to a mechanic as i dont want to spend a boat load of money trying to track this issue down.

I thew a U112b code a while back which is some kind of DSC issue

Im at 118k miles now

Cheers

jzxi · 02-09-2013, 09:05 PM

A main wiring harness runs along the passnger side floor next to the door jam. From battery to fuse/relay box. Usually when the fuse box/battery cable connection has high resistance you will get a dies while driving or no start condition. It is not out of the realm of possibilities that your vehicle has a voltage drop sufficient to keep running, but freak out multiple control modules, as you experienced in your other posts. Parts are around $200.

cheers
jz

Craigito · 02-09-2013, 09:21 PM

Quote:

Originally Posted by jzxi

A main wiring harness runs along the passnger side floor next to the door jam. From battery to fuse/relay box. Usually when the fuse box/battery cable connection has high resistance you will get a dies while driving or no start condition. It is not out of the realm of possibilities that your vehicle has a voltage drop sufficient to keep running, but freak out multiple control modules, as you experienced in your other posts. Parts are around $200.

cheers
jz

Interesting. Thanks for the input.

sbv328i · 02-10-2013, 10:28 PM

Just got rid of my electrical gremlins, turned out to be a bad alternator. Funny thing is was that it was just replaced no more than 1 year 3 months ago thankfully it was still covered under warranty so it was replaced for free. I had my dash light up like a Xmas tree when I had the issues. Brake light would flash red and yellow, DSC lights on and off, speedometer would cut in and out, abs light, even interior lights when turned on would cut out, all of this would happen randomly out of nowhere too.

02-09-2013, 08:24 PM	#1
Craigito Captain Drives: 07' E92 335i Join Date: Nov 2006 Location: SoCal Posts: 703 iTrader: (0)	More Electrical Failure gremlins Some of you have read my previous posts about this. So i had gone almost a week with no warnings and the first time I had someone in the passenger seat it starts happening. This happened previously too. What might be the reason having a passenger (one in front and rear passenger) would trigger the elec failure warnings. I have not taken it to a mechanic as i dont want to spend a boat load of money trying to track this issue down. I thew a U112b code a while back which is some kind of DSC issue Im at 118k miles now Cheers __________________ *My Original Car* 335I Coupe / Space / Black Dakota / Gray Poplar / ZSP / ZPP / Step / Paddles / Nav / Hot Seats / IPOD/ Xpel HL & Fogs/ 15% F1 Tint http://www.bimmerfest.com/forums/sho...d.php?t=226259 (Stolen Car Thread ) http://craigsbmw-eurodelivery.blogspot.com (ED Trip)
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02-09-2013, 09:05 PM	#2
jzxi Enlisted Member Drives: 2007 328xi Join Date: Sep 2012 Location: Gunnison, CO USA Posts: 36 iTrader: (1)	A main wiring harness runs along the passnger side floor next to the door jam. From battery to fuse/relay box. Usually when the fuse box/battery cable connection has high resistance you will get a dies while driving or no start condition. It is not out of the realm of possibilities that your vehicle has a voltage drop sufficient to keep running, but freak out multiple control modules, as you experienced in your other posts. Parts are around $200. cheers jz __________________ Sparkling graphite, Cold, Premium, Sport, 6MT, 35% tint, Eibach pro, 17" 159's with studded Gislaved winters. 18" AG 310 with Michelin PSS summer.

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02-10-2013, 10:28 PM	#4
sbv328i New Member Drives: e92 328i Join Date: Aug 2010 Location: chicahgo mang Posts: 12 iTrader: (0)	Just got rid of my electrical gremlins, turned out to be a bad alternator. Funny thing is was that it was just replaced no more than 1 year 3 months ago thankfully it was still covered under warranty so it was replaced for free. I had my dash light up like a Xmas tree when I had the issues. Brake light would flash red and yellow, DSC lights on and off, speedometer would cut in and out, abs light, even interior lights when turned on would cut out, all of this would happen randomly out of nowhere too.