I have a V1 with version 3.816, it's over a yr or 2. Since I got new Mercedes, I don't know why it's keep elert K band all the time, maybe from Blind Spot Assit, Backup sensors, or from something else.
Should I send in for upgrade or buy a latest one?
If I upgrade, will mine get the latest features as new one?
How much for upgrade?
Thank you very much.