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Old 01-09-2019, 07:26 PM
oldskewel oldskewel is offline
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Join Date: Nov 2014
Location: SF Bay Area
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Quote:
Originally Posted by blktoptrvl View Post
Not so fast!!!

Car was good for the day... then the "Door Open" Messages started again.
...
Sorry to hear that, but that sort of thing is so common.

What I do to try to avoid it is having my cars with interchangeable batteries when possible. So for example, the batteries in my X5 and Porsche Cayenne are interchangeable. If I ever have problems and think the chance the battery is bad is worth the debugging effort to swap batteries between cars, I'll do that. And as you found, sometimes it takes some time or miles for the experiment to run.

Making the batteries interchangeable will sometimes require choosing one of them to be a little smaller (and sometimes even a slightly bigger one can be made to fit) than specified when buying a new one.

My batteries last a long time this way.
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2001 X5 3.0i, 190k miles, AT, owned since 2014
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