How many digits does the metric "Distance to next fill" display show?

I am happy to run into someone who has questions about something as basic as this but is a mystery because the owners manual does such a dismal job of documenting this part of the vehicle. I have a 2015 Jetta 2.0L S (USA). Have you been able to get an explanation to date? What I feel is needed is a full documentation of the display and what it conveys.

The VW dealership has since told me that the "Range" display (distance to next fill) should show four digits on the metric display. That is, it should show 1200km, rather than 200km when warranted. So far, under warranty, they've updated the software, and replaced the instrumentation head, with no change in the display. And, yes, I can get around 1200km on a full (55L) tank of Diesel. I've asked the dealership to escalate, and contact VW, but haven't (yet) scheduled a return to the service centre.

I am trying to learn How to use the MFI . Can you tell what the following is: When I press the the Button 3X for setting the clock on the outside of the Tach a 3 digit number appears Press it again and another 3 digit number appears. What do these Numbers Mean.