98 E300 turbo diesel..I start the car and drive about a mile and the car looses power and just dies on me. I have changed the battery and don't seem to have any electrical issues. The car was sitting for about 2.5 months for the winter. After i get it to start again after about 5 minutes of cranking it works fine for the day. The next morning same problem. I had my mechanic friend take a look, could it be a fuel leak that is causing the problem?????? If it was electrical the I assume car would still run without battery power, Correct?????