BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Electrical help, I need to tap into battery voltage

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      03-16-2013, 09:11 PM   #1
Gray_Panther's Avatar

Drives: 128i
Join Date: Jun 2012
Location: Upstate NY

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Electrical help, I need to tap into battery voltage

Hey all,

I am coming from the 1er forum to ask the bigger brother a question. Soon I am starting on a headlight retrofit on my 128i's halogen headlights. I would usually tap power from the battery, but BMW puts our batteries in the rear instead of the front. Is there a place on the front of the car that is connected to the positive terminal of the battery to supply constant 12VDC?

I am aware that there is a positive terminal post under the hood, but is it always a closed circuit that goes straight to the positive terminal of the allspark located in the trunk? Since there are a lot of similarities between the two models I figured it wouldn't hurt to ask here too.

I need this question answered but in the meantime here is a little teaser

2012 BMW 128i 6MT Deep Sea Blue Metallic
FX-R Bi-Xenon Projectors With 5000k Bulbs & Halo's More Kick Ass Than Any BMW

Last edited by Gray_Panther; 03-16-2013 at 09:27 PM.
Appreciate 0


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