Hello,
My fuel gauge is permanently indicating full.
I have checked power to the gauge and the function of the gauge.
I have a Road type sender. There is power to the sender.
When I disconnect the sender the gauge indicates empty.
If I reconnect the sender and turn on the system, I cannot measure any resistance between the signal wire (yellow) and any of the other 5 wires in the cable.
Any idea where I go from here ?
If your tank is not full, you could open the inspection hatch in the tank en see if your level sensor is not stuck in the topside. Sometimes a little piece of dirt in the tank makes it for the level sensor to be stuck in top position.
On our previous Bavaria, we had a vdo levelsensor and on this one the float and the levelpotentio meter got detached, also displaying the same level at all times..
From my experience, usually the problem is with the level gauge.
Good luck!
I have a similar problem.
The problem is neither in the gauge nor in the sender, but in the shape of the tank.
So only when I use half a tank, the hand starts to move.
And yes, the level indication has not got the linearity as a car as the tank is fitted in the shape of the hull.. so it shows full for a long time and then starts to drop quite quickly.