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      12-29-2020, 08:10 AM   #8
maron
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Drives: E60&F06
Join Date: Jul 2016
Location: Zipangu

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Quote:
Originally Posted by Robert2912 View Post
Thanks a lot for your quick answer QSilver7!

Location of both batteries is correct, they are in the middle of the trunk. My car comes with the Active Steering/Dynamic Drive option, so that's the reason it has the Aux battery as well.

When I replace both batteries this week I will have a closer look, but I don't think the small battery has an IBS sensor.
So it makes perfectly sense then that it doesn't need to be registered.

I will have a close look at ISTA to see what happens when it is actually communicating with the car though.

Thanks for your help again,

Rob
Auxiliary batteries also need to register a record of replacement.
I did the processing with ISTA

https://minkara.carview.co.jp/userid...2967/note.aspx
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