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      12-06-2011, 02:55 PM   #2
JimD
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Drives: 128i convertible
Join Date: Apr 2009
Location: Lexington, SC

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You can buy a OBD II tool that will let you reprogram your car for the new battery but it is going to cost you $250 or more. The tool would be nice to have so I will probably do this. You need to be careful, however, since there are many less expensive tools that will read and clear trouble codes but which are not sophisticated enough to do this reprogramming. What you physically get is a cable to hook a laptop to the OBD II port of your car and software for the laptop that allows you to interface with the car.

I don't think there is any simple, cheap, easy way to deal with this. The car charges the battery differently dependant on whether it is new or not and what the type of battery is. If it is not charged correctly, the battery tends to fail prematurely.

Here's a link to one device which says it will let us reprogram for a new battery:

http://www.bavariantechnic.com/model...atrix.aspx#e87

$287

Jim
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128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09

Last edited by JimD; 12-06-2011 at 03:06 PM..
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