You're probably OK.....but I think I would skip my favorite gas station and just get to the CLOSEST station. To ease your mind you can get an idea of your situation by using the overhead computer and convert the display from miles to kilometers. Instead of just flashing FUEL, it will give you a ballpark figure of Kilometers left till EMPTY.

In all my miles, and with all the gas gauge problems the ML's are prone to......this display has been extremely accurate, and I have never run out of gas..Once it gets down to 0 KM, I would guess your pretty much running on fumes !!