do you have to take the car to dealership when replacing battery in BMW 3 Series how do you reset computer on your own

Sarah LaFramboise

Asked by Dec 30, 2014 at 10:14 PM about the 2004 BMW 3 Series 328i

Question type: Maintenance & Repair

2 Answers


No, most places that sell and install batteries professionally know the protocols for battery replacement, stay away from places like Walmart, they will sell you a battery and just unhook yours, put in the replacement and then say oops when it won't start due to alarm or loss of code presets. Call a place first and make sure they have the equipment to do it right. As far as a computer reset to factory, the only true way is to completely electrically disconnect the ECM and let it sit overnight before reconnecting it, after it is reconnected you need to drive it as you normally do for at least 15 minutes, if everything is right then there should not be any warning lights.

1 out of 1 people think this is helpful.
Tom Demyan

tennisshoes is right, battery's only need programming for the 2006 and newer E90 chassis. There is a lot of misinformation out at the auto parts stores.

Your Answer

Add photo

Related Questions

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 3,910
#2 Robert Charlson
Robert Charlson
Reputation 1,380
#3 Matt Mankinen
Matt Mankinen
Reputation 1,110
View All

Related Models For Sale

Used BMW 5 Series"
676 Great Deals out of 18,821 listings starting at $1,500
Used BMW M3"
96 Great Deals out of 1,888 listings starting at $5,495
Used Mercedes-Benz C-Class"
867 Great Deals out of 31,802 listings starting at $1,900
Used Audi A4"
321 Great Deals out of 12,956 listings starting at $1,500
Used Ford Mustang"
718 Great Deals out of 41,256 listings starting at $900
Used Mercedes-Benz E-Class"
778 Great Deals out of 22,551 listings starting at $1,850
Used BMW X5"
550 Great Deals out of 15,427 listings starting at $1,995
Used BMW 6 Series"
118 Great Deals out of 3,003 listings starting at $5,995
Used BMW 7 Series"
205 Great Deals out of 5,846 listings starting at $2,995
Used Honda Accord"
1,272 Great Deals out of 77,636 listings starting at $1,395
Used BMW 1 Series"
125 Great Deals out of 1,743 listings starting at $3,750
Used BMW X3"
285 Great Deals out of 12,018 listings starting at $3,500

Used Cars For Sale

2016 BMW 3 Series 328i For Sale
26 listings starting at $29,698