[Got f1?]

Bought a used 2009 X5 and the battery has obviously been replaced. (I asked this question in X5 forum with no answers.) Two questions:

1- Is there any way to know if the battery was registered?
2- Any harm in registering it again?

Here's a screenshot from Bimmercode:

[3t3p]

I believe registration is to allow IBS to adjust charge rate appropriately for the age of the battery.

So if you re-register an older battery (telling the car it has a new battery effectively) then charge rate may not be high enough to keep it properly charged.

Would the world end? I like to think not but who knows if weird things may start to happen.

[Got f1?]

Originally Posted by 3t3p

I believe registration is to allow IBS to adjust charge rate appropriately for the age of the battery.

So if you re-register an older battery (telling the car it has a new battery effectively) then charge rate may not be high enough to keep it properly charged.

Would the world end? I like to think not but who knows if weird things may start to happen.

Thanks for the response. I may try it. Hoping for more input.