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Old 09-20-2016, 09:17 AM
Ron07x5 Ron07x5 is offline
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battery madness unknown exactly BUT

Quote:
Originally Posted by Investor View Post
Just had my 2014 X5 3.5 serviced and they replaced the main battery. Dealer said it was normal maintenance and would be replaced every 2nd oil change. Car only has 14k miles on it and no battery issues. This sounds absurd to me. I guess I wont keep car once its off warranty. Anyone else have this issue?
BMW has designed a charging system which seeks to recharge a battery as fast as it can be based on .... agm or not, amp hours, and battery age? But this max charging rate stresses the battery. Reason why they do this is to cover for the case where a user drives for short times over and over. What they are apparently seeking is to be able to run the under hood fans to cool hot turbos which may become damaged if not cooled etc.

So BMW is pulling cars in early and replacing batteries that are on their way out from discharge and recharge.
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