I have had mine to service now. They have replaced a panel inside the dashboard, as well as the speedometer (no idea why!?) instead of getting the malfunction, i now get a "scbs reverse have been deactivated" information, when I put my gear in rear mode. Before the city brakes did not work when driving forward in mine, but it does now, dealer tested it against a gate for me. Scbs does not work when driving backwards.
Not sure what to think of this fix, it does not malfunction, but on the other hand does not work when driving backwards either. But atleast driving forward works.
In other news, they updated my infotainment to v56. That fixes a nasty black screen I had a few times. It was just released in the EU, so remember to get that update.