Drain the battery

135

Asked by Jan 06, 2013 at 02:33 PM about the 2003 BMW 5 Series 525i Sedan RWD

Question type: Maintenance & Repair

On a 2003 BMW 525i,  have a slow drain on the battery (over night) and i already taken the car to an all electrical shop and they said that is one of the computers that stays on and the computer is over 600.00 dlls plus labor witch  i dont have I have tryed to disconnect the battery completlly, hoping that the computer will reset, and it worked for about 4 days but it went back to draining the battery again.             Any sugestions???

4 Answers

104,835

I would install a battery disconnect switch until I could replace the computer. Check them out on eBay to see what types there are and check out prices at the parts store.

2 of 2 people found this helpful.
135

Thanks for the Idea, I didn't know there was a battery kill switch I already research them and they are very reasonable priced. That is whet Im going to do for now

1 of 1 people found this helpful.
10

ecm

10

Electronic control module

1 of 1 people found this helpful.

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