As with any software it depends on bugs. Just because it’s an embedded system, doesn’t mean it doesn’t have issues. There’s only 2 reasons for an update; 1) fixing bugs 2) introducing new features. BMW doesn’t seem to instruct dealers to upgrade unless there is an identified fault. Dealers seems to be reluctant to do it without charge for the same reason (they can’t bill the workshop time to the mothership). The question is - if the bike is working with no issues will an update improve things or introduce new problems? I had mine updated and the service reset went haywire and is reporting service overdue since Feb, even though it had an annual service 4 months and 500 miles previously. On the plus side, the range to empty is now very accurate. It was the first update it had since I bought it.
