After the last filling up with petrol the fuel gauge showed some ticks below "full". Within a drive of about two hours it gradually went down to "empty" and the the built in warning light came on. A check at a petrol station showed no loss of petrol. Just the usual consumption. The DTE shows 0km and the average consumption is on 0 liters/km as well. Since then we have driven 2000km from Spain back home to Switzerland. Calculating fuel consumption manually.

It is an 2019 Plus4 traditional with 47000km on the clock. I think it is the fuel gauge sensor that belongs to the fuel pump or the signal cable that runs from there to the gauge. I can not reach the cable without removing the dashboard. Has anyone encountered the same problem? And what was the solution? Does it make sense to get a new fuel pump anyway - after so many miles of shaking?
All the other gauges are ok.

Regards, Werner