Drain the battery

125

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

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

89,875

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 out of 2 people think this is helpful.
125

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 out of 1 people think this is helpful.
10

ecm

10

Electronic control module

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

5 Series

Looking for a Used 5 Series in your area?

CarGurus has 16,858 nationwide 5 Series listings starting at $1,500.

ZIP:

Search BMW 5 Series Questions

BMW 5 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,790
#2 Michael Branan
Michael Branan
Reputation 730
#3 Robert Charlson
Robert Charlson
Reputation 670
View All

Related Models For Sale

Used BMW 3 Series
1,610 Great Deals out of 38,815 listings starting at $1,250
Used BMW 7 Series
172 Great Deals out of 5,512 listings starting at $1,600
Used Mercedes-Benz E-Class
636 Great Deals out of 21,917 listings starting at $1,500
Used BMW X5
537 Great Deals out of 16,144 listings starting at $2,788
Used BMW 6 Series
105 Great Deals out of 3,090 listings starting at $7,495
Used BMW M5
39 Great Deals out of 593 listings starting at $7,990
Used Mercedes-Benz C-Class
877 Great Deals out of 31,586 listings starting at $2,500
Used Audi A6
157 Great Deals out of 7,163 listings starting at $2,695
Used BMW M3
69 Great Deals out of 2,079 listings starting at $4,988
Used Mercedes-Benz S-Class
161 Great Deals out of 5,568 listings starting at $2,500
Used Audi A4
314 Great Deals out of 12,449 listings starting at $2,000
Used Honda Accord
1,078 Great Deals out of 74,906 listings starting at $969

Used Cars For Sale

2016 BMW 5 Series For Sale
111 Great Deals out of 6,720 listings starting at $32,429
2015 BMW 5 Series For Sale
13 Great Deals out of 385 listings starting at $24,800
2014 BMW 5 Series For Sale
61 Great Deals out of 1,789 listings starting at $17,993
2013 BMW 5 Series For Sale
135 Great Deals out of 1,971 listings starting at $15,980
2012 BMW 5 Series For Sale
35 Great Deals out of 671 listings starting at $14,900