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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Asia > Hong Kong > "Battery registration" after battery replacement?



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      11-20-2011, 04:22 AM   #1
librayiu
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"Battery registration" after battery replacement?

Hi, seems modern BMW cars need to tell ECU there is a new battery when you replace it, the process called something like "Battery registration".
My car is 2008 135i and would like to replace the factory battery now, but I found normal battery shops in HK don't even know what this is...
Any good battery/garage in HK that can do this step correctly with reasonable price?
Thanks in advance.
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      11-20-2011, 06:07 AM   #2
Harriz.c
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Quote:
Originally Posted by librayiu View Post
Hi, seems modern BMW cars need to tell ECU there is a new battery when you replace it, the process called something like "Battery registration".
My car is 2008 135i and would like to replace the factory battery now, but I found normal battery shops in HK don't even know what this is...
Any good battery/garage in HK that can do this step correctly with reasonable price?
Thanks in advance.
They do??? Never had that problem before :s
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      11-20-2011, 07:58 AM   #3
librayiu
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Originally Posted by Harriz.c View Post
They do??? Never had that problem before :s
I just know this by searching the forum. Seems recent BMW cars have logic to handle new and old battery differently. So if you install a new battery without doing the "battery registration", the car will treat the new battery as old one and somehow shorten the life of the new battery.

If anyone know the detail, pls kindly share and advise, thx~
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      11-20-2011, 09:47 AM   #4
335ringo
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The shop will connect another battery when they change the old battery keep the car running, then you don't need "battery registration". almost all shop can do it, no problem.
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      11-20-2011, 10:03 AM   #5
librayiu
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Originally Posted by 335ringo View Post
The shop will connect another battery when they change the old battery keep the car running, then you don't need "battery registration". almost all shop can do it, no problem.
To my understanding, the battery registration is not about this...

Some related links that I read about it:
http://www.ehow.com/how_7649980_regi...w-battery.html
http://findarticles.com/p/articles/m...g=content;col1
http://www.bimmerfest.com/forums/sho...d.php?t=356897

There is a lot posts in all bmw forum talking about this. This is new to me as I never think replace a battery need reset something in ECU...
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      11-20-2011, 10:09 AM   #6
librayiu
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Quote:
Originally Posted by librayiu View Post
To my understanding, the battery registration is not about this...

Some related links that I read about it:
http://www.ehow.com/how_7649980_regi...w-battery.html
http://findarticles.com/p/articles/m...g=content;col1
http://www.bimmerfest.com/forums/sho...d.php?t=356897

There is a lot posts in all bmw forum talking about this. This is new to me as I never think replace a battery need reset something in ECU...
Also this article:
http://www.1addicts.com/forums/attac...7&d=1274276506
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