[tee92]

To begin, I know I should’ve covered terminal with a rag or ziptied it up away. I learned my lesson! So I was tidying up the battery wiring since I just picked up my car about a week ago, unfortunately I bridged the negative to the positive lead on the power distribution box. Sparks started flying, so I grabbed a rag and removed the ratchet from the battery. I assumed this fried my battery, so my next step was to get a new battery. I get my new battery (Duralast H8) and connect all my wires to find out my car wouldn’t crank or fire, no electronics, nothing. I ran a voltomter to my battery and it came back 12.5V, furthermore I tested the positive post under the hood and the hex stud to get 12.5V again. I narrowed it down to the first fuse on the power distribution box by running the continuity setting on my voltometer. Today, I went to a local junkyard and picked up a used power distribution box, there was continuity on all fuses, so i knew this would work. I get home, install my new distribution box. My cars electronics now work, car locks and unlocks, besides my A/C and iDrive, just will crank or fire when I press clutch in and push start/stop in. Any ideas what else I may have blown? Or what I could have missed when reinstalling my battery? I have checked my connection and everything seems to be connected and secure. I am thinking it could be the JBE module, since most electronics run through it. Maybe CAS, FRM? Thanks in advance guys, i appreciate the help.

[ctuna]

electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU

[ATXHusky]

ctuna do you have similar electrical guides for e93? I'm having a similar issue where I loosened a bolt on the power distribution box and arcing fried something.

[ctuna]

Those pdf should cover the entire 3 series or a given date range for electrics.
You are much more likely to get help with this in the general section. (sub forum)