Update: Also tried 12.0V which is recommended everywhere for Vag cars, not working either.
So I unplugged the sensor cable from the battery, I get an error message on screen which disappears shortly after and then it doesn't show up again. The start/stop system is now disabled since it gets no value from the battery and therefore does not cut the engine off.
So I unplugged the sensor cable from the battery, I get an error message on screen which disappears shortly after and then it doesn't show up again. The start/stop system is now disabled since it gets no value from the battery and therefore does not cut the engine off.