View Full Version : non functional aux heater

12-08-2013, 02:13 AM
Good day everyone. Having some issues in regards to the auxiliary heater in my 2008 sprinter. Was functioning flawlessly for the past 4 months of daily use. I filled the van at a fas gas and think I got a very poor quality tank of diesel. Have been getting water in fuel light and now when I push the button to toggle the aux heater the red light comes on for maybe half a second. No noises from the pump or unit and then the light goes out. Could this be water in the espar?

12-08-2013, 05:10 AM
How much fuel do you have in it? It wont run with less then around 25%

12-08-2013, 10:59 AM
Full tank