IT COULD BE POSSIBLE THAT DEBRIS IN YOUR FUEL TANK MADE IT'S WAY THROUGH, THEY SAY TO NEVER GO BELOW HALF A TANK OF FUEL.
I agree with ROOSTER the only thing you can try doing is replace fuel filter it may have gotten clogged with debree from tank hopefully it did not clog up sock filter on fuel pump.
Search Mercedes-Benz M-Class Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Mercedes-Benz M-Class Experts