Originally Posted by AudiDudi
I don't know what year Sprinter you have, but my 2016 has a dash gauge that is like the fuel gauge and is accessed by pushing the M button. I do not have steering wheel buttons.
I have the buttons and the pixels DEF visual dash gauge, and I believe it to be somewhat unreliable at indicating the true DEF level in the tank, so far.
George: I hear ya on trying not to spill it when it's only down a bit. I refill at the truck stop diesel lanes and often get blow back from the nozzle because the gauge said it was down more than it actually was.