My old Audi has a problem with the fuel gauge and the water temp gauge.
It seems like they´re corresponding.
Somtimes i can see the corrct watertemp. as well as the correct amount of
fuel. Then it changes, so that i can´t see
any watertemp. and the fuelgauge drops down with about 1/4 of the scale.
I suspect it is a loose connection or an electronic problem, i just don´t
know where to start - any help is welcome.