Has anyone heard of this? a 1999 E300TD being totaled by Insurance Co due to computer failure? I was speaking to a seller who said this occurred to his car because of the failure of the computers on his car?

Isnt there only one main computer on these cars and doesnt this sound ludicrous that this would happen? The car had 185K on it and the body was in very good condition. Something does not sound right? What am I missing here?
Thanks