I wrote about a possible fix in April. I had the following parts replaced:
Replaced Battery 61-21-7-594-976 (made in Italy)
Replaced Battery Cable 61-12-9-215-954
Replaced Battery Cable 61-12-9-217-004
Replaced IBS and BST (no part nrs, one is Intelligent Battery System, no idea what the other is).
Not saying this is the solution, but I have not seen an error
message since.
Here is a pic of the IBS (top right).
