[Danny H]

Hi,

I have recently bought off a friend a 2008 e93 320i with optional auto/stop start function and brake energy regeneration.

The battery was changed in November 2022 and I am 100% that the garaged didn't register the new battery.

It is an Exide AGM 95Ah EK950.

I always turn off the stop start function every time I drive (I hate it).

I don't have any problems with the battery going flat.

A few questions:

1) Should I register the battery now? or is it too late?

2) Is the capacity of the battery the same as the one originally supplied with the car? If not should I be recoding it?

3) Is it possible that the unregistered battery and brake energy regeneration could be impacting the radio reception? I intermittently get weak FM when the roof is down, but it generally seems to happen when I lift off, which I understand is usually when the battery charging kicks it.

Thanks in advance

Danny