New battery, does the car need programming

Tiny
JCCXCCJ23
  • MEMBER
  • 2002 BMW 325
  • 2.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Do I have to program my car (XI model) after install a new battery? Or is it necessary?
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Sunday, August 5th, 2018 AT 1:56 PM

3 Replies

Tiny
KEN
  • ADMIN
No, it should be fine is the car having issues since the change? I have seen voltage spikes play havoc on some cars when changing the battery.

Please get back to us.

Cheers, Ken
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Monday, August 6th, 2018 AT 3:16 PM
Tiny
JCCXCCJ23
  • MEMBER
No. It has not had an issue yet but I am waiting for the 120 amp 12 volt alternator to be delivered. And I do believe the final stage resistor or alternator was having a parasitic draw on the battery. If that makes sense for common issues for BMW.
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Monday, August 6th, 2018 AT 7:39 PM
Tiny
KEN
  • ADMIN
Yep, alternator can go bad draining the battery. Here is a guide to show you what you are in for when changing the alternator out and diagrams to help you see how on your car below:

https://www.2carpros.com/articles/how-to-replace-an-alternator

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Tuesday, August 7th, 2018 AT 10:02 AM

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