Ok I did some googling and found out how to update the Garmin Map Pilot. There is a V5.0 available for download. I will post the instructions, but
do this at your own risk. Not all computers behave the same. I was sweating thru the whole process hoping that I don't brick my 400 dollar SD car on the first day. Lol.
1 - Activate your Map pilot in your GLA and remove it and bring it inside where its warm, unless you rather do it outside on your laptop. lol
note: make sure you turn off Radio then turn off car before you remove it or you might be making another trip to the car....(been there, done that)
2 - download the MB Download Manager (available for PC and MAC)
Garmin® MAP PILOT - Mercedes-Benz Apps
3- Install the software and run it and enter any username and password (it doesn't care).
4 - Insert your SD card into your computer. (must have a SD reader to update)
note: if it tells you that you must first insert the card in your vehicle..see #1 above for notes.
5 - The app will now check your card and let you know if an update is available.
6 - optional - Run the Backup option before you update your card.
note: Takes a while so go get a cup of coffee or a beer if needed.
7 - When done updating, go back to your car and insert card. Run NAV and it will ask you those stupid questions again like when you first installed it.
THE END