I am the new owner of a used 2002 e39. It has a Nav system. I am used to a Garmin with touch screen.

I have the Mark III system with software 3-1/41.

There are some quirks with this Nav unit. For example, the unit gives an altitude reading. Cool. However, we can only read the altitude on the main menu screen. Cannot read it while the unit is navigating.

My first question is this: if I uplevel the software, does this quirk get fixed?

Also, our Garmin is quite old, but when we are navigating in a large city the unit does a great job of showing us what the road ahead looks like when we are required to take action, so that we can be in the correct lane (upcoming cloverleafs and things like that). We seem to get some sense of that with the BMW unit, but not as clearly. If I uplevel the software, is there more detailed map information presented?